Himalayan wolf: Difference between revisions
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{{Short description|Subspecies of mammal}} |
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{{Subspeciesbox |
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{{Subspeciesbox |
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| name = Himalayan wolf |
| name = Himalayan wolf |
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| image = Himalayan wolf, Annapurna Conservation Area.jpg |
| image = Himalayan wolf, Annapurna Conservation Area.jpg |
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| image_caption = |
| image_caption = Himalayan wolf in the [[Upper Mustang]] region of [[Annapurna Conservation Area]] in Nepal |
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| status = |
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| status_system = |
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| genus = Canis |
| genus = Canis |
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| species = lupus |
| species = lupus |
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| species_link = |
| species_link = Gray wolf |
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| subspecies = |
| subspecies = chanco |
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| status = VU |
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| status_system = IUCN3.1 |
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| status_ref = <ref>{{cite iucn|author1=Werhahn, G.|author2=Hennelly, M.|author3=Lyngdoh, S.J.|author4=Habib, B.|author5=Viranta, S.|author6=Shrotriya, S.|year=2023|title=''Canis lupus'' ssp. ''chanco''|page=e.T223987824A223987841|doi=10.2305/IUCN.UK.2023-1.RLTS.T223987824A223987841.en|access-date=7 January 2024}}</ref> |
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| authority = [[John Edward Gray|Gray]], 1863<ref name=gray1863>{{cite journal |author=Gray, J. E. |year=1863|title=Notice of the Chanco or Golden Wolf (''Canis chanco'') from Chinese Tartary |journal=Proceedings of the Zoological Society of London |page=94 |url=https://archive.org/details/proceedingsofgen63busi/page/94}}</ref> |
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| range_map = Tibetan wolf distribution.jpg |
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| range_map_caption = Himalayan wolf distribution (red dots in highlands) compared with the holarctic grey wolf (blue dots in lowlands)<ref name=werhahn2018/> |
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}} |
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The '''Himalayan wolf''' is a proposed clade within the [[Tibetan wolf]] (''Canis lupus filchneri'') that is distinguished by its [[mitochondrial DNA]], which is basal to all other wolves, including other Tibetan wolves. |
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The '''Himalayan wolf''' ('''''Canis lupus chanco''''') is a [[Canis|canine]] of debated taxonomy.<ref name=werhahn2018/> It is distinguished by its [[genetic markers]], with [[mitochondrial DNA]] indicating that it is genetically [[Basal (phylogenetics)|basal]] to the [[Holarctic]] [[Wolf|grey wolf]], genetically the same wolf as the Tibetan and [[Mongolian wolf]],<ref name=ersmark2016>{{cite journal |doi=10.3389/fevo.2016.00134 |title=From the Past to the Present: Wolf Phylogeography and Demographic History Based on the Mitochondrial Control Region |journal=Frontiers in Ecology and Evolution |volume=4 |year=2016 |last1=Ersmark |first1=E. |last2=Klütsch |first2=C. F. C. |last3=Chan |first3=Y. L. |last4=Sinding |first4=M.-H. S. |last5=Fain |first5=S. R.|last6=Illarionova |first6=N. A. |last7=Oskarsson |first7=M. |last8=Uhlén |first8=M. |last9=Zhang |first9=Y.-P. |last10=Dalén |first10=L. |last11=Savolainen |first11=P. |s2cid=19954938 |doi-access=free}}</ref><ref name=werhahn2017>{{cite journal |doi=10.1098/rsos.170186 |pmid=28680672 |pmc=5493914 |title=Phylogenetic evidence for the ancient Himalayan wolf: Towards a clarification of its taxonomic status based on genetic sampling from western Nepal |journal=Royal Society Open Science |volume=4 |issue=6 |pages=170186 |year=2017 |last1=Werhahn |first1=G. |last2=Senn |first2=H. |last3=Kaden |first3=J. |last4=Joshi |first4=J. |last5=Bhattarai |first5=S. |last6=Kusi |first6=N. |last7=Sillero-Zubiri |first7=C. |last8=MacDonald |first8=D. W. |bibcode=2017RSOS....470186W}}</ref><ref name=werhahn2018>{{cite journal |doi=10.1016/j.gecco.2018.e00455|title=The unique genetic adaptation of the Himalayan wolf to high-altitudes and consequences for conservation |journal=Global Ecology and Conservation |volume=16 |id=e00455 |year=2018 |last1=Werhahn |first1=G. |last2=Senn |first2=H. |last3=Ghazali |first3=M. |last4=Karmacharya|first4=D. |last5=Sherchan |first5=A. M. |last6=Joshi |first6=J. |last7=Kusi |first7=N. |last8=López-Bao |first8=J. V. |last9=Rosen |first9=T. |last10=Kachel |first10=S. |last11=Sillero-Zubiri |first11=C. |last12=MacDonald |first12=D. W.|pages=e00455 |doi-access=free |bibcode=2018GEcoC..1600455W |hdl=10651/50748 |hdl-access=free}}</ref> and has an association with the [[African wolf]] (''Canis lupaster'').<ref name=koepfli2015/><ref name=werhahn2017/><ref name=werhahn2018/> No striking morphological differences are seen between the wolves from the Himalayas and those from Tibet.<ref name=shrotriya2012/> The Himalayan wolf lineage can be found living in [[Ladakh]] in the [[Himalayas]], the [[Tibetan Plateau]],<ref name=Werhahn2020>{{cite journal |doi=10.1111/jbi.13824 |title=Himalayan wolf distribution and admixture based on multiple genetic markers |year=2020 |last1=Werhahn |first1=G. |last2=Liu |first2=Y. |last3=Meng |first3=Y. |last4=Cheng |first4=C. |last5=Lu |first5=Z. |last6=Atzeni |first6=L. |last7=Deng |first7=Z. |last8=Kun |first8=S. |last9=Shao |first9=X. |last10=Lu|first10=Q. |last11=Joshi |first11=J. |last12=Man Sherchan |first12=A. |last13=Karmacharya |first13=D. |last14=Kumari Chaudhary |first14=H. |last15=Kusi |first15=N. |last16=Weckworth |first16=B. |last17=Kachel |first17=S. |last18=Rosen |first18=T. |last19=Kubanychbekov |first19=Z. |last20=Karimov |first20=K. |last21=Kaden |first21=J. |last22=Ghazali |first22=M. |last23=MacDonald |first23=D. W. |last24=Sillero-Zubiri |first24=C. |last25=Senn |first25=H. |journal=Journal of Biogeography |volume=47 |issue=6 |pages=1272–1285 |doi-access=free |bibcode=2020JBiog..47.1272W}}</ref><ref name=Joshi2020/> and the [[mountains of Central Asia]]<ref name=Joshi2020/> predominantly above {{cvt|4000|m}} in elevation because it has adapted to a low-oxygen environment, compared with other wolves that are found only at lower elevations.<ref name=Werhahn2020/> |
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The taxonomic status of the new Himalayan wolf clade is disputed, with the separate species ''Canis himalayensis'' proposed based on two studies limited to [[Mitochondrial DNA|mtDNA]]. The model produced by the first study only had 50% likelihood, which provides weak support for the proposal. The second study used more specimens and a larger number of genetic sequences; its model had a 92–99% likelihood, and showed a close relationship with the [[African golden wolf]].<ref name=werhahn2017/> |
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Some authors have proposed the reclassification of this lineage as a separate species.<ref name=aggarwal2007>{{Cite journal |last1=Aggarwal |first1=R. K. |last2=Kivisild |first2=T. |last3=Ramadevi |first3=J. |last4=Singh |first4=L. |title=Mitochondrial DNA coding region sequences support the phylogenetic distinction of two Indian wolf species |doi=10.1111/j.1439-0469.2006.00400.x |journal=Journal of Zoological Systematics and Evolutionary Research |volume=45 |issue=2 |pages=163–172 |date=2007 |doi-access=free}}</ref><ref name=aggarwal2007b>{{cite book|last1=Aggarwal |first1=R. K. |title=You Deserve, We Conserve: A Biotechnological Approach to Wildlife Conservation |publisher=I K International Publishing House |location=New Delhi |editor=Pandit, M. W. S. |editor2=Shivaji, L. S. |year=2007 |chapter=Molecular Genetic Studies on highly Endangered Species |pages=54–57 |chapter-url=https://books.google.com/books?id=-BLEGylIIasC&pg=PA57 |isbn=978-81-89866-24-2}}</ref> In 2019, a workshop hosted by the [[IUCN]]/SSC Canid Specialist Group noted that the Himalayan wolf's distribution included the Himalayan range and the Tibetan Plateau. The group recommends that this wolf lineage be known as the "Himalayan wolf" and be classified as ''Canis lupus chanco'' until a genetic analysis of the [[holotype]]s is available. The Himalayan wolf lacks a proper morphological analysis.<ref name=Alvares2019>{{cite report |title=Old World ''Canis'' spp. with taxonomic ambiguity: Workshop conclusions and recommendations, 28th–30th May 2019 |first1=F. |last1=Alvares |first2=W. |last2=Bogdanowicz |first3=L.A.D. |last3=Campbell |first4=R. |last4=Godinho |first5=J. |last5=Hatlauf |first6=Y.V. |last6=Jhala |first7=A. C. |last7=Kitchener |first8=K.-P. |last8=Koepfli |first9=M. |last9=Krofel |first10=P. D. |last10=Moehlman |first11=H. |last11=Senn |first12=C. |last12=Sillero-Zubiri |first13=S. |last13=Viranta |first14=G. |last14=Werhahn |year=2019 |publisher=IUCN/SSC Canid Specialist Group, Centro de Investigação em Biodiversidade e Recursos Genéticos |location=Vairão, Portugal |url=https://www.canids.org/CBC/Old_World_Canis_Taxonomy_Workshop.pdf |access-date=6 March 2020 |archive-date=8 March 2021 |archive-url=https://web.archive.org/web/20210308105821/https://www.canids.org/CBC/Old_World_Canis_Taxonomy_Workshop.pdf |url-status=live}}</ref> The wolves in India and Nepal are listed on [[CITES Appendix I]] as endangered due to international trade.<ref name=CITES/> |
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==Distribution== |
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The proposed Himalayan wolf is found in northern [[India]] in the [[Ladakh]] region of eastern [[Kashmir]]<ref name=lydekker1900/> and the [[Lahaul and Spiti]] region in the northeastern part of [[Himachal Pradesh]].<ref name=sharma2004/><ref name=pocock1941/> It is also found in Nepal in the Upper [[Dolpo|Dolpa]]<ref name=subba2012/> and [[Upper Mustang]] regions.<ref name=arnold2016/><ref name=sharma2004/> A population of them can also be found in Tibet.<ref name=sharma2004/> |
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==Taxonomy== |
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The Indian population consists of 350 wolves with a range of {{convert|70000|km2|sqmi|abbr=on}}.<ref name=aggarwal2003/> In 2004, a group of 33 Himalayan wolves were spotted in the [[Spiti Valley]] in the northeastern part of [[Himachal Pradesh]].<ref name=bbc2004/> In the same year, the wolf was spotted for the first time in Nepal in the [[Upper Mustang]] region.<ref name=arnold2016/> |
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''Canis chanco'' was the [[scientific name]] proposed by [[John Edward Gray]] in 1863, who described a skin of a wolf that was shot in [[Chinese Tartary]].<ref name=gray1863/> This specimen was classified as a wolf [[subspecies]] ''Canis lupus chanco'' by [[St. George Jackson Mivart]] in 1880.<ref name=mivart1890/> In the 19th and 20th centuries, several [[zoological specimen]]s were described: |
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*''Canis niger'' by [[Philip Sclater]] in 1874 was a wolf specimen collected near [[Hanle (village)|Hanle]] in [[Kashmir]].<ref>{{cite journal |last1=Sclater |first1=P. L. |date=November 1874 |title=On the Black Wolf of Thibet |journal=Proceedings of the Zoological Society of London |pages=654–655 |url=https://archive.org/details/proceedingsofgen74zool/page/654/mode/2up}}</ref> |
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<!-- *''Canis ekloni'' by [[Nikolay Przhevalsky]] in 1883 was a wolf specimen --> |
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*''Lupus filchneri'' by [[Paul Matschie]] in 1907 was a wolf skin from [[Xining]] in China's [[Qinghai]] province.<ref name=Matschie1907/> It had been collected by [[Wilhelm Filchner]] during an expedition to China and Tibet in 1903–1905.<ref name=filchner1913/> |
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*''Lupus karanorensis'' by Matschie in 1907 was a skin and a skull of a wolf that was shot in an oasis near [[Dunhuang]] in China in 1894.<ref name=Matschie1907/> |
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*''Lupus tschiliensis'' by Matschie in 1907 was a skull of a wolf specimen that was shot in the coastal region of China's [[Zhili]] province.<ref name=Matschie1907/> |
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*''Canis lupus coreanus'' by [[Yoshio Abe]] in 1923 was a wolf specimen from the vicinity of [[Seoul]] in the [[Korean Peninsula]].<ref>{{cite journal |author=Abe, Y. |title=Nukutei ni tsuite |trans-title=On Nuketei |journal=Dobutsugaku Zasshi (Zoological Magazine) |volume=35 |year=1923 |pages=320–326}}</ref> |
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In 1938, [[Glover Morrill Allen]] classified these specimens as [[Synonym (taxonomy)|synonym]]s for ''C. l. chanco''.<ref name=allen1938>{{cite book |last1=Allen |first1=G.M. |title=The Mammals of China and Mongolia |publisher=The American Museum of Natural History |location=New York |series=Natural History of Central Asia |volume=XI, Part I |edition=First |year=1938 |chapter=''Canis lupus chanco'' Gray. The Wolf |pages=342–345 |chapter-url=https://archive.org/details/mammalsofchinamo01alle/page/342/mode/2up}}</ref> In 1941, [[Reginald Pocock]] corroborated this assessment after reviewing wolf skins and skulls in the collection of the [[Natural History Museum, London]].<ref name=pocock1941/> In 2005, [[W. Christopher Wozencraft]] also listed ''C. l. niger'', ''C. l. filchneri'', ''C. l. karanorensis'', and ''C. l. tschiliensis'' as synonyms for ''C. l. chanco''.<ref name=wozencraft2005>{{MSW3 Carnivora |id=14000748 |page=576 |heading=Subspecies ''Canis lupus chanco''}}</ref> |
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''Canis himalayensis'' was proposed by Aggarwal ''et al.'' in 2007 for wolf specimens from the Indian [[Himalayas]] that differed in [[mitochondrial DNA]] from specimens collected in other parts of India.<ref name=aggarwal2007/> In April 2009, ''Canis himalayensis'' was proposed as a distinct wolf species through the Nomenclature Specialist on the [[CITES]] Animals Committee. The proposal was based on one study that relied on only a limited number of museum and zoo samples that may not have been representative of the wild population.<ref name=shrotriya2012/><ref name=subba2012/> The committee recommended against this proposal, but suggested that the name be entered into the CITES species database as a synonym for ''Canis lupus''. The committee stated that the classification was for conservation purposes only, and did not "reflect the latest state of taxonomic knowledge".<ref name=cites2009/><ref name=cites2017/> Further fieldwork was called for.<ref name=shrotriya2012/> This [[genetic lineage]] shows a 3.9% divergence in the mDNA [[cytochrome b]] gene when compared with the Holarctic grey wolf, which may justify it being classified as a distinct species.<ref name=werhahn2018/> In 2019, a workshop hosted by the [[IUCN]]/SSC Canid Specialist Group noted that the Himalayan wolf's distribution included the Himalayan range and the Tibetan Plateau. The group determined that the earliest available Latin name is ''Canis chanco'' Gray, 1863, but the geographic location of the [[holotype]] is unclear. The group recommends that this wolf lineage be known as the "Himalayan wolf" and classified as ''Canis lupus chanco'' until a genetic analysis of the holotypes is available.<ref name=Alvares2019/> |
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==Description== |
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Morphological appearance of the wolves from different parts of India shows certain dissimilarities. Skulls of the two males from [[Chumar]], [[Ladakh]] were measured by Allen (234 and 236 mm), which are the largest for wolves in India, but smaller compared to [[North America]]n wolves, which can measure up to 290 mm. |
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In 2020, more recent research on the Himalayan wolf genome indicates that it warrants species-level recognition under the Unified Species Concept, the Differential Fitness Species Concept, and the Biological Species Concept. It was identified as an [[evolutionary significant unit]] that warranted assignment onto the [[IUCN Red List]] for its protection.<ref name=Werhahn2020/> |
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The wolf from peninsular India appears smaller in size and more brownish in colour, whereas wolves from the Himalayan regions are large and whitish. Peninsular wolf weighs 25 kg on an average, which may be the lowest among all wolves, whereas wolves from the Himalayan region weigh about 35 kg, similar to Tibetan wolves.<ref name="shrotriya2012" /> |
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==Characteristics== |
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The wolves from Upper Mustang, Nepal are characterized by their "distinct white coloration around the throat, chest, belly, and inner part of the legs; woolliness of body fur; stumpy legs; unusual elongation of the muzzle, a muzzle arrayed with closely-spaced black speckles which extend below the eye on to the upper cheeks and ears; and smaller size compared to the European wolf."<ref name=chetri2016/> |
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[[File:Himalayan wolf.JPG|thumb|Himalayan wolf profile]] |
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[[File:Tibetan Wolf By Stanzin (Stakpa) cropped.jpg|thumb|Wolf in [[Changtang]], Tibet]] |
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The Himalayan wolf has a thick, woolly fur that is dull earthy-brown on the back and tail, and yellowish-white on the face, tummy, and limbs. It has closely spaced black speckles on the muzzle, below the eyes, and on the upper cheeks and ears.<ref name=chetri2016/> |
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Larger than the [[Indian wolf|Indian]] and [[European Wolf|common European wolves]],<ref>{{cite web|url=http://www.cosmosmith.com/tibetan_wolf.asp|title=tibetanwolvesmith}}</ref><ref name="jerdon1874" /> it reaches {{cvt|45|to|70|in|cm|order=flip}} in length, {{cvt|68|to|76|cm}} tall at the shoulder, and weighs around {{cvt|30|to|55|kg}} on average.<ref name="shrotriya2012" /><ref name="pocock1941" /><ref>{{cite web|url=https://wolf-stuff.com/blogs/wolf-facts/tibetan-wolf#:~:text=to%20121%20lbs-,TIBETAN%20WOLF%20DESCRIPTION,white%20like%20most%20Siberian%20wolves.|title=tibetanwolvestuff}}</ref> |
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''Canis lupus pallipes'' has the smallest skull length, measuring maximum up to 220 mm. Zygomatic widths of the skull of wolves from Ladakh (129 and 128 mm) were also comparatively larger than those of peninsular wolves from India (90.2–109 mm). Upper cheek teeth, i.e. canine to last molar of two wolves from Ladakh measured 105 and 98.4 mm, which is larger compared to those of peninsular wolves and Arabian wolves (93.6–97 mm and 81.3–93 mm respectively)14–16. |
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The heart of the Himalayan wolf can withstand the low oxygen level at high elevations. It has a strong selection for ''RYR2'', a gene that initiates cardiac excitation.<ref name=Zhang2014>{{cite journal |author1=Zhang, W. |author2=Fan, Z. |author3=Han, E. |author4=Hou, R. |author5=Zhang, L. |author6=Galaverni, M. |author7=Liu, H. |author8=Silva, P. |author9=Li, P. |author10=Pollinger, J.P.|author11=Du, L.|author12=Zhang, X. |author13=Yue, B.|author14=Wayne, R.K. |author15=Zhang, Z. |year=2014 |title=Hypoxia adaptations in the Grey wolf (''Canis lupus chanco'') from Qinghai-Tibet Plateau |journal=PLoS Genetics |volume=10 |issue=7 |pages=e1004466 |id=e1004466 |doi=10.1371/journal.pgen.1004466 |pmid=25078401 |pmc=4117439 |doi-access=free}}</ref> |
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A comparative study of Himalayan wolves with other grey wolf subspecies howls demonstrated that the Himalayan wolf howls typically had lower frequencies and were shorter in duration. The study found that Himalayan and North African wolves showed the most acoustically distinct howls and differed significantly from each other and to the other wolf subspecies.<ref name="hennelly2017"/> |
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==Phylogeography== |
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The mitochondrial DNA of 27 wolves from the [[Himalayas]] and the [[Tibetan Plateau]] was compared in 2004. Results indicate that five related [[haplotypes]] formed a [[clade]] that is [[Basal (phylogenetics)|basal]] to all other wolves. This clade included one sample from [[Ladakh]], nine from the [[Spiti Valley]] in [[Himachal Pradesh]], four from [[Nepal]], and two from [[Tibet]]. The Himalayan wolf clade diverged from other canids 800,000 years ago. Seven wolves from [[Kashmir]] did not fall into this clade.<ref name=sharma2004/> The mtDNA of 18 captive wolves in the [[Padmaja Naidu Himalayan Zoological Park]] was analysed in 2007. Results showed that they shared a common female ancestor.<ref name=aggarwal2007/> As this study was based on captive-bred zoo specimens that had descended from only two females, these samples were not considered to be representative. Additionally, the wolf population in the Kashmir Valley is known to have recently arrived in that area.<ref name=shrotriya2012/><ref name=chetri2016/> Subsequent genetic research showed that wolf samples from Tibet are [[lineage (genetic)#Basal lineage|genetically basal]] to the Holarctic gray wolf.<ref name=leonard2007/><ref name=pilot2010/><ref name=rueness2011/><ref name=miklosi2015>{{cite book |last1=Miklosi |first1=A. |title=Dog Behaviour, Evolution, and Cognition |publisher=Oxford University Press |edition=2 |series=Oxford Biology |year=2015 |pages=106–107 |chapter=Evolution of the Wolf |chapter-url=https://books.google.com/books?id=VT-WBQAAQBAJ&pg=PA106 |isbn=978-0199545667 |access-date=2017-08-31 |archive-date=2023-02-10 |archive-url=https://web.archive.org/web/20230210103112/https://books.google.com/books?id=VT-WBQAAQBAJ&pg=PA106 |url-status=live}}</ref> Its ''[[MT-ND4L]]'' [[gene]] commences with the [[base pairs]] [[Guanine|G]]TG, whereas all other [[Canidae|canids]] commence with [[Adenine|A]]TG.<ref name=zhao2014>{{cite journal |doi=10.3109/19401736.2013.865181|pmid=24438245 |title=The complete mitochondrial genome sequence of the Tibetan wolf (''Canis lupus laniger'') |journal=Mitochondrial DNA |volume=27 |issue=1 |pages=7–8 |year=2014 |last1=Zhao |first1=C. |last2=Zhang |first2=H. |last3=Zhang |first3=J. |last4=Chen |first4=L. |last5=Sha |first5=W. |last6=Yang |first6=X. |last7=Liu |first7=G. |s2cid=207746075}}</ref> Results of [[whole genome sequencing]] showed that it is the most [[Genetic divergence|genetically divergent]] wolf.<ref name=fan2016/> |
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The cladogram, below, shows [[Phylogenetic tree|genetic relationships]] between the extant species of wolf-like canids, based on [[nuclear DNA|DNA]] sequence data taken from the cell nucleus,<ref name=lindblad2005/><ref name=koepfli2015/> except for the Himalayan wolf, whose placement in the diagram is based only on [[mitochondrial DNA]] sequences.<ref name=koepfli2015/><ref name=werhahn2017/> |
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Analysis of scat samples from two wolves collected in upper [[Dolpo]] in Nepal matched the Himalayan wolf.<ref name=subba2012/> Fecal remains of four wolves collected in the [[upper Mustang]] region of the [[Annapurna Conservation Area]] also fell within the Himalayan wolf clade but formed a separate haplotype from those previously studied.<ref name=chetri2016/> |
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The Himalayan wolf population in Tibet declined over the past 25,000 years and suffered a historical [[population bottleneck]]. Glaciation during the [[Last Glacial Maximum]] may have caused habitat loss, genetic isolation, and ancient inbreeding. The population in Qinghai had grown, though, showing a [[gene flow]] of 16% from Chinese indigenous dogs and 2% of the dingo's genome. It probably recolonised the Tibetan Plateau.<ref name=fan2016/> The Himalayan wolf contrasts with the wolves living at lower elevations in [[Inner Mongolia]], [[Mongolia]], and [[Xinjiang]] province. Some wolves in China and Mongolia also fall within the Himalayan wolf clade, indicating a common maternal ancestor and a wide distribution.<ref name=ersmark2016/> There was evidence of [[Hybridisation (biology)|hybridization]] with the grey wolf at Sachyat-Ertash in the [[Issyk-Kul]] region of [[Kyrgyzstan]], and of [[introgression]] from either the grey wolf or the dog into the Himalayan wolf in Nepal.<ref name=werhahn2018/> |
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A genomic study on China's wolves included museum specimens of wolves from southern China that were collected between 1963 and 1988. The wolves in the study formed three clades: north Asian wolves that included those from northern China and eastern Russia, wolves from the Tibetan Plateau, and a unique population from southern China. One specimen located as far southeast as [[Jiangxi]] province shows evidence of being admixed between Tibetan-related wolves and other wolves in China.<ref name=Wang2019>{{cite journal |doi=10.1016/j.isci.2019.09.008 |pmid=31563851 |pmc=6817678 |title=Genomic approaches reveal an endemic subpopulation of Gray Wolves in southern China |journal=iScience |volume=20 |pages=110–118 |year=2019 |last1=Wang |first1=G.-D. |last2=Zhang |first2=M. |last3=Wang |first3=X. |last4=Yang |first4=M. A. |last5=Cao |first5=P. |last6=Liu |first6=F. |last7=Lu |first7=H. |last8=Feng |first8=X. |last9=Skoglund |first9=P. |last10=Wang |first10=L. |last11=Fu |first11=Q. |last12=Zhang |first12=Y.-P. |bibcode=2019iSci...20..110W}}</ref> |
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{{Cladogram|align=left |title=[[Phylogenetic tree]] of ''[[Canis lupus]]'' with timing in years{{refn|group=lower-alpha|name=mtdna_seq_desc|For a full set of supporting references refer to the note (a) in the phylotree at [[Evolution of the wolf#Wolf-like canids]]}} |
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{{Cladogram|align=center|title=[[Phylogenetic tree]] of the extant wolf-like canids|caption=[[Phylogenetic tree]] of extant wolf-like canids based on [[nuclear DNA]],<ref name=lindblad2005/><ref name=koepfli2015/> with Himalayan wolf placement only from [[mitochondrial DNA|mtDNA]] sequences.<ref name=koepfli2015/><ref name=werhahn2017/> Numbers on the branches are estimated divergence times, in millions of years.<ref name=koepfli2015/> |
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|cladogram={{clade | style = font-size:85%;line-height:80%;width: |
|cladogram={{clade | style = font-size:85%;line-height:80%;width:375px; |
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|style1=background-color:#ccccff; |
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|label1=[[Caninae]] 3.5 [[Megaannum|Ma]] |
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|label1=250,000 |
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|label1=120,000 |
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|1=[[Dog]] [[File:Tibetan mastiff (transparent background).png|50 px]] |
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|label1=1.6 |
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|2=Holarctic [[gray wolf]] [[File:Dogs, jackals, wolves, and foxes (Plate I).png|50 px]] |
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|1={{clade |
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|label1=1.3 |
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|1={{clade |
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|1=[[Dog]] [[File:Tibetan mastiff (white background).jpg|50 px]] |
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|2=[[Gray wolf]] [[File:Dogs, jackals, wolves, and foxes (Plate I).jpg|50 px]] |
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}} |
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|2=Himalayan wolf [[File:Dogs, jackals, wolves, and foxes (Plate III).jpg|50 px]] |
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}} |
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|2=[[Coyote]] [[File:Dogs, jackals, wolves, and foxes (Plate IX).jpg|50 px]] |
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}} |
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|2=[[African golden wolf]] [[File:Dogs, jackals, wolves, and foxes (Plate XI).jpg|50 px]] |
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}} |
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|2=[[Ethiopian wolf]] [[File:Dogs, jackals, wolves, and foxes (Plate VI).jpg|50 px]] |
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}} |
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|2=[[Golden jackal]] [[File:Dogs, jackals, wolves, and foxes (Plate X).jpg|50 px]] |
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|2=[[Dhole]] [[File:Dogs, jackals, wolves, and foxes (Plate XLI).jpg|50 px]] |
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}} |
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|2=Late [[Pleistocene wolf]]† [[File:Dogs, jackals, wolves, and foxes (Plate I).png|50 px]] |
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}} |
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|2={{clade |
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|1={{clade |
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|1=[[Side-striped jackal]] [[File:Dogs, jackals, wolves, and foxes (Plate XIII).jpg|50 px]] |
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|2=[[Black-backed jackal]] [[File:Dogs, jackals, wolves, and foxes (Plate XII).jpg|50 px]] |
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}} |
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|2=[[Indian wolf#Canis indica|Indian plains wolf]] [[File:Dogs, jackals, wolves, and foxes (Plate I).png|50 px]] |
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|label1=2.6 |
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}} |
}} |
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|2='''Himalayan wolf''' [[File:Dogs, jackals, wolves, and foxes (Plate I).png|50 px]] |
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}} |
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}} |
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}} |
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{{clear}} |
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The wolves of Tibet were first described by British zoologist [[Brian Houghton Hodgson]] in 1847 as ''Canis laniger''.<ref name=hodgson1847/> In 1907, the German zoologist [[Paul Matschie]] described a [[type specimen]] of a wolf that lived in the [[Gansu]] and [[Qinghai]] regions of China, which he named ''Canis filchneri'' Matschie (1907).<ref name=matschie1907/> In the third edition of ''[[Mammal Species of the World]]'' published in 2005, the mammalogist W. Christopher Wozencraft listed under the wolf ''Canis lupus'' the [[Synonym (taxonomy)|taxonomic synonyms]] for the subspecies ''Canis lupus filchneri'', under which he included ''filchneri'' Matschie (1907) and ''laniger'' Hodgson (1847).<ref name=wozencraft2005/> |
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{{Clear}} |
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In 1941, [[Reginald Pocock]] had referred to the Tibetan wolf as ''Canis lupus laniger'' and classified it as a synonym under ''C. l. chanco''.<ref name=pocock1941/> There are some researchers who still refer to Pocock's classification of the Tibetan wolf as ''C. l. chanco'', which has caused taxonomic confusion. |
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[[DNA sequences]] can be mapped to reveal a [[phylogenetic tree]] that represents evolutionary relationships, with each branch point representing the divergence of two lineages from a common ancestor. On this tree, the term [[Basal (phylogenetics)|“basal”]] is used to describe a lineage that forms a branch diverging nearest to the common ancestor.<ref name=reece2015/> |
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The wolves living in the [[Trans-Himalaya]] region have unique haplotypes, do not cluster phylogenetically with other gray wolves, were [[Basal (phylogenetics)|basal]] to all other wolves and are closer to the jackal. This indicates that these are the descendants of an ancient wolf distribution and a new taxonomic classification of ''Canis himalayensis'' is proposed.<ref name=sharma2004/><ref name=aggarwal2007/><ref name=spotte2012/><ref name=aggarwal2007b/> The taxonomic reference ''Mammal Species of the World'' does not recognize ''Canis himalayensis'', however [[National Center for Biotechnology Information|NCBI]]/[[Genbank]] does list ''Canis lupus himalayensis''.<ref name=genbank2017/> |
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===Relationship to the Indian lowland wolf=== |
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There are now academic works that refer to the Himalayan wolf as ''Canis himalayensis'',<ref name=subba2012/><ref name=joshi2011/><ref name=aggarwal2007/><ref name=sharma2004/> and the Tibetan wolf as ''Canis lupus laniger''.<ref name=zhao2014/><ref name=meng2009/> |
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In 2021, a study compared both the [[mitochondrial DNA]] and the [[nuclear DNA]] (from the cell nucleus) from the wolves of the Himalayas with those of the wolves from the lowlands of the [[Indian subcontinent]]. The genomic analyses indicate that the Himalayan wolf and the Indian lowland wolf were genetically distinct from one another. These wolves were also genetically distinct from – and genetically basal to – the other wolf populations across the northern hemisphere. These other wolves form a single mitochondrial [[clade]], indicating that they originated from a single expansion from one region within the last 100,000 years. However, the study indicated that the Himalayan wolf had separated from this lineage 496,000 years ago, and the Indian lowland wolf 200,000 years ago.<ref name=Hennelly2021/> |
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===Admixture with an unknown wolf-like canid=== |
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{{See also|Tibetan wolf#Taxonomy}} |
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The [[Tibetan mastiff]] breed was able to adapt to the extreme highland conditions of the Tibetan Plateau very quickly, comparably to other mammals such as the [[yak]], [[Tibetan antelope]], [[snow leopard]], and [[wild boar]]. The Tibetan mastiff's ability to avoid [[Hypoxic hypoxia|hypoxia]] in high elevations due to its higher [[hemoglobin]] levels compared to low-altitude dogs, was due to prehistoric [[interbreeding]] with the wolves of Tibet.<ref name=Miao2016>{{cite journal |pmid=27927792 |title=Genomic analysis reveals hypoxia adaptation in the Tibetan Mastiff by introgression of the Grey Wolf from the Tibetan Plateau |journal=Molecular Biology and Evolution |volume=34 |issue=3 |pages=734–743 |year=2016 |last1=Miao |first1=B. |last2=Wang |first2=Z. |last3=Li |first3=Y. |s2cid=47507546 |doi=10.1093/molbev/msw274 |doi-access=free}}</ref><ref name=Signore2019/> |
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In 2020, a genomic analysis indicates that the wolves of the Himalayas and the Tibetan plateau are closely related. These wolves have an admixed history which includes gray wolves, dogs, and a [[ghost population]] of an unknown wolf-like canid. This ghost population is deeply-diverged from modern Holarctic wolves and dogs, has contributed 39% to the Himalayan wolf's nuclear genome, and contributed the [[EPAS1]] allele which can be found in both Himalayan wolves and dogs which allows them to live in high altitudes.<ref name=Wang2020>{{cite journal |title=Ancient hybridization with an unknown population facilitated high-altitude adaptation of canids |year=2020 |last1=Wang|first1=M.-S. |last2=Wang |first2=S. |last3=Li |first3=Y. |last4=Jhala |first4=Y. |last5=Thakur |first5=M. |last6=Otecko |first6=N. O. |last7=Si |first7=J.-F. |last8=Chen|first8=H.-M. |last9=Shapiro |first9=B. |last10=Nielsen |first10=R. |last11=Zhang|first11=Y.-P. |last12=Wu |first12=D.-D. |journal=Molecular Biology and Evolution |volume=37 |issue=9 |pages=2616–2629 |pmid=32384152 |doi=10.1093/molbev/msaa113 |doi-access=free}}</ref> |
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==Lineage== |
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A study in 2004 compared sequences of 582 [[base pairs]] in length from the [[mtDNA control region]]{{refn|group=lower-alpha|name=mtdna_seq_desc|[[DNA sequences]] can be mapped to reveal a [[phylogenetic tree]] that represents evolutionary relationships, with each branch point representing the proposed divergence of two lineages from a common ancestor. An animal's [[mitochondrial DNA]] (mtDNA) is inherited only from its mother.}} for 27 wolves from the [[Himalayas]] and the [[Tibetan Plateau]]. The phylogenetic tree generated from the sequences indicated that there were 5 related [[haplotypes]] which formed a [[clade]] that is [[Basal (phylogenetics)|basal]] to all other wolves.{{refn|group=lower-alpha|name=basal_desc|The term [[Basal (phylogenetics)|basal taxon]] refers to a lineage that diverges early in the history of the group and lies on a branch that originates near the common ancestor of the group."<ref name=reece2015/>}} This clade included one sequence from [[Ladakh]] in eastern [[Kashmir]], nine from the [[Spiti Valley]] in [[Himachal Pradesh]], four from [[Nepal]], and two from [[Tibet]]. Seven wolves also from Kashmir did not fall into this clade. |
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Domestic dogs exhibit diverse [[Dog coat genetics|coat colours and patterns]]. In many mammals, different colour patterns are the result of the regulation of the [[Agouti-signaling protein|Agouti gene]], which can cause hair follicles to switch from making black or brown pigments to yellow or nearly white pigments. The most common coat pattern found in modern wolves is [[Agouti (coloration)|agouti]], in which the upperside of the body has banded hairs and the underside exhibits lighter shading. The colour yellow is dominant to the colour black and is found in dogs across much of the world and the dingo in Australia.<ref name=Bannasch2021/> |
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Hodgson (1847) described the Tibetan wolf as ''C. laniger''. A study of the mitochondrial control region of the specimen that Hodgson collected (labelled BM58.6.24.61) was found to fall within the proposed Himalayan wolf clade.<ref name=sharma2004/> However, the 50% likelihood provided by the model on which this study rested provides only weak support for this proposal.<ref name=shrotriya2012/><ref name=aggarwal2007/><ref name=sharma2004/> A criticism of this study is that it was based on zoo specimens and it is known that all zoo specimens have been captive-bred, descended from only two females.<ref group=lower-alpha name=mtdna_seq_desc/> Therefore, the study did not provide a representative sample.<ref name=chetri2016/><ref name=shrotriya2012/> Additionally, the wolf population in the Kashmir valley is known to have recently arrived in that area.<ref name=shrotriya2012/> |
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In 2021, a study of whole genome sequences taken from dogs and wolves focused on the genetic relationships between them based on coat colour. The study found that most dog colour haplotypes were similar to most wolf haplotypes, however dominant yellow in dogs was closely related to white in arctic wolves from North America. This result suggests a common origin for dominant yellow in dogs and white in wolves but without recent gene flow, because this clade was found to be basal to the golden jackal and genetically distinct from all other canids. The most recent common ancestor of the golden jackal and the wolf lineage dates back to 2 million YBP. The study proposes that 35,000 YBP there was genetic [[introgression]] into the Late Pleistocene grey wolf from a [[ghost population]] of an extinct canid which had diverged from the grey wolf lineage over 2 million YBP. This colour diversity could be found 35,000 YBP in wolves and 9,500 YBP in dogs. A closely related haplotype exists among those wolves of Tibet which possess yellow shading in their coats. The study explains the colour relationships between modern dogs and wolves, white wolves from North America, yellow dogs, and yellowish wolves from Tibet. The study concludes that during the Late Pleistocene, natural selection laid the genetic foundation for modern coat colour diversity in dogs and wolves.<ref name=Bannasch2021/> |
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[[File:Himalayan wolf.JPG|thumb|Himalayan wolf profile]] |
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[[File:Pin Valley, Spiti.jpg|thumb|[[Pin Valley National Park|Pin valley]] within in the [[Spiti valley]], [[Himachal Pradesh]] showing the environment of the wolves]] |
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===Relationship with the African golden wolf=== |
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In 2007, a study compared sequences of 1,300 base pairs in length from the [[Mitochondrial DNA|mtDNA]]<ref group=lower-alpha name=mtdna_seq_desc/> control region for 18 wolves from the [[Padmaja Naidu Himalayan Zoological Park]] near [[Darjeeling]] in [[West Bengal]], northern India. The study found that the wolves were [[Basal (phylogenetics)|basal]]<ref group=lower-alpha name=basal_desc/> to all other wolves and formed one haplotype, indicating that they shared a common female ancestor. The study did not ascertain if the zoo specimens were all related. The conclusion supported the 2004 study that the Himalayan wolf differed from other Tibetan wolves.<ref name=aggarwal2007/> A criticism of this study is that it was based on limited data with no samples collected from the Kashmir valley population, despite suggesting that Kashmir is an area of potential contact of the closely related wolf clades. Instead, the samples were collected from Indian zoos or museum specimens. Additionally, the areas under study are part of the same landscape, and the question of what ecological or behavioral barriers could be facilitating such strict divergence, particularly when no striking morphological differences occur between the wolves from Tibet and Indian Trans-Himalaya, remains unanswered.<ref name=shrotriya2012/> |
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[[File:Himalayan wolves.jpg|thumb|Wolves in the Padmaja Naidu Himalayan Zoological Park in [[Darjeeling]]]] |
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In 2011, the Himalayan, Indian and African wolves were proposed to represent ancient wolf lineages, with the African wolf having colonised Africa prior to the Northern Hemisphere radiation of the Holarctic gray wolf.<ref name=rueness2011/> |
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Two studies of the mitochondrial genome of both modern and extinct gray wolves (''Canis lupus'') have been conducted, but these excluded the genetically divergent lineages of the Himalayan wolf and the Indian wolf. The ancient specimens were [[radiocarbon dated]] and [[Stratigraphy|stratigraphically]] dated, and together with DNA sequences, a time-based [[phylogenetic tree]] was generated for wolves. The study inferred that the [[most recent common ancestor]] for all other ''Canis lupus'' specimens – modern and extinct – was 80,000 years before present.<ref>{{cite journal |doi=10.1126/science.1243650 |pmid=24233726 |title=Complete mitochondrial genomes of ancient canids suggest a European origin of Domestic Dogs |journal=Science |volume=342 |issue=6160 |pages=871–874 |year=2013 |last1=Thalmann |first1=O. |last2=Shapiro |first2=B. |last3=Cui |first3=P. |last4=Schuenemann |first4=V. J. |last5=Sawyer |first5=S. K. |last6=Greenfield |first6=D. L. |last7=Germonpre |first7=M. B. |last8=Sablin |first8=M. V. |last9=Lopez-Giraldez |first9=F. |last10=Domingo-Roura |first10=X. |last11=Napierala |first11=H.|last12=Uerpmann |first12=H.-P.|last13=Loponte|first13=D. M. |last14=Acosta |first14=A. A. |last15=Giemsch |first15=L. |last16=Schmitz |first16=R. W. |last17=Worthington |first17=B. |last18=Buikstra |first18=J. E. |last19=Druzhkova |first19=A. |last20=Graphodatsky|first20=A. S. |last21=Ovodov |first21=N. D. |last22=Wahlberg |first22=N. |last23=Freedman |first23=A. H. |last24=Schweizer |first24=R. M. |last25=Koepfli |first25=K.- P. |last26=Leonard |first26=J. A. |last27=Meyer |first27=M. |last28=Krause |first28=J. |last29=Paabo |first29=S. |last30=Green |first30=R. E. |bibcode=2013Sci...342..871T |s2cid=1526260}}</ref><ref name=koblmuller2016/> An analysis of the Himalayan wolf mitochondrial genome indicates that the Himalayan wolf diverged between 740,000 and 691,000 years ago from the lineage that would become the Holarctic gray wolf.<ref name=werhahn2018/> |
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In April 2009, the Latin [[binomial nomenclature|binomen]] ''Canis himalayensis'' was proposed for this clade as a separate species of wolf through the Nomenclature Specialist on the [[CITES]] Animals Committee. The proposal was based on one study that relied on only a limited number of museum and zoo samples that may not have been representative of the wild population.<ref name=shrotriya2012/><ref name=subba2012/> The committee recommended against this proposal but suggested that the name be entered into the species database as a synonym for ''Canis lupus''.<ref name=cites2017/><ref name=cites2009/> The committee stated that the classification was for conservation purposes only, and did not "reflect the latest state of taxonomic knowledge".<ref name=cites2009/> Further fieldwork was called for.<ref name=shrotriya2012/> |
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Between 2011 and 2015, two mDNA studies found that the Himalayan wolf and Indian gray wolf were genetically closer to the African golden wolf than they were to the Holarctic gray wolf.<ref name=rueness2011/><ref name=koepfli2015/> From 2017, two studies based on mDNA, and X-chromosome and Y-chromosome markers taken from the [[cell nucleus]], indicate that the Himalayan wolf is genetically basal to the Holarctic gray wolf. Its degree of divergence from the Holarctic gray wolf is similar to the degree of divergence of the African wolf from the Holarctic wolf. The Himalayan wolf shares a maternal lineage with the African wolf. It possesses a unique paternal lineage that falls between the gray wolf and the African wolf.<ref name=werhahn2017/><ref name=werhahn2018/> The results of these two studies imply that the Himalayan [[wolf distribution]] range extends from the Himalayan range north across the Tibetan Plateau up to the [[Qinghai Lake]] region in China’s Qinghai Province.<ref name=werhahn2017/> |
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Other researchers have questioned this proposed taxonomic classification, claiming that recent genetic studies have not provided a complete picture. The 2007 argues that the Himalayan wolf is different to the wolves from Tibet. As these areas are part of the same landscape, the question of what ecological or behavioural barriers could be facilitating such strict divergence, particularly when no striking morphological differences occur between the wolves from Tibet and Indian Trans-Himalaya, remains unanswered. Another problem is related to limited data as none of the studies have collected samples from the [[Kashmir]] valley population, despite suggesting it as the area of potential contact of the closely related wolf clades. Instead, the samples have been collected from Indian zoos or museum specimens.<ref name=shrotriya2012/> |
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In 2018, whole genome sequencing was used to compare members of the genus ''Canis''. The African golden wolf was found to be the descendant of a genetically [[genetic admixture|admixed]] canid of 72% gray wolf and 28% [[Ethiopian wolf]] ancestry.<ref name=gopalakrishnan2018/> The Ethiopian wolf does not share the single-nucleotide polymorphisms that confer hypoxia adaptation with the Himalayan wolf. The adaptation of the Ethiopian wolf to living in high elevations may occur at other [[single-nucleotide polymorphism]] locations. This indicates that the Ethiopian wolf's adaptation has not been inherited by descent from a common ancestor shared with the Himalayan wolf.<ref name=werhahn2018/> |
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Two later studies compared sequences from the wolves of the Himalayas against worldwide wolf sequences and confirmed their [[Basal (phylogenetics)|basal]] position, however these studies did not include wolves from Tibet.<ref name=miklosi2015/><ref name=pilot2010/><ref name=leonard2007/> In 2012, a study compared sequences of 300 base pairs in length from the mtDNA control region of the scats of 2 wolves from remote and widely separated areas in the Upper [[Dolpo|Dolpa]], Nepal and found that these sequences matched the Himalayan wolf.<ref name=subba2012/> In 2016, study compared sequences of 220 base pairs in length from the mtDNA control region from the fecal remains of 4 wild wolves from the [[Upper Mustang]] region of the [[Annapurna Conservation Area]], Nepal. The study showed that they fell within the Himalayan wolf clade but formed a separate haplotype to those previously studied.<ref name=chetri2016/> |
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==Distribution and habitat== |
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Later in 2016, a study compared wolf mitochondrial DNA sequences of 582 base pairs in length. The phylogenetic tree generated from the sequences revealed that the two most-basal<ref group=lower-alpha name=basal_desc/> clades were formed by specimens from India and the Himalayas.<ref group=lower-alpha>For the purpose of this study the "Himalayas" classification included specimens from Tibet as well as from the Himalayas.</ref> Within the Himalayan / Tibetan wolf clade also fell some specimens from China and Mongolia,<ref name=ersmark2016/> indicating a common maternal ancestor<ref group=lower-alpha name=mtdna_seq_desc/> and a wider genetic distribution.<ref name=ersmark2016/> |
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[[File:Tibetan Wolf Canis lupus chanko.jpg|thumb|Tibetan wolf in [[Spiti Valley]], India]] |
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[[File:Pin Valley, Spiti.jpg|thumb|[[Pin Valley National Park]] located in Himachal Pradesh]] |
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In China, the Himalayan wolf lives on the Tibetan Plateau in the provinces of [[Gansu]], [[Qinghai]], Tibet,<ref name=wang2003>{{cite book |last1=Wang |first1=Y. |title=A Complete Checklist of Mammal Species and Subspecies in China (A Taxonomic and Geographic Reference) |publisher=China Forestry Publishing House |location=Beijing, China |year=2003 |isbn=978-7503831317}}</ref><ref name=smith2008>{{cite book |title=A Guide to the Mammals of China |author=Wozencraft, W. C. |chapter=Canidae |editor=Smith, A. T. |editor2=Xie, Y. |edition=First |year=2008 |publisher=Princeton University Press |location=Princeton, Oxfordshire |pages=416–418 |chapter-url=https://books.google.com/books?id=ka-9f68nPT4C&pg=PA416 |isbn=978-0691099842}}</ref> and western [[Sichuan]].<ref name=Werhahn2020/> |
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In northern [[India]], it occurs in the Union Territory of [[Ladakh]] and in the [[Lahaul and Spiti district|Lahaul and Spiti]] region in northeastern [[Himachal Pradesh]].<ref name=pocock1941/> In 2004, the Himalayan wolf population in India was estimated to consist of 350 individuals ranging across an area of about {{cvt|70000|km2}}.<ref name=sharma2004/> |
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{{See also|Tibetan wolf#Lineage}} |
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Between 2005 and 2008, it was sighted in the alpine meadows above the treeline northeast of [[Nanda Devi National Park]] in [[Uttarakhand]].<ref name=bhattacharya2010/> In 2013, a wolf was photographed by a camera trap installed at an elevation around {{cvt|3500|m}} near the Sunderdhunga Glacier in Uttarakhand's [[Bageshwar district]].<ref name=pioneer2014/> |
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In Nepal, it was recorded in [[Api Nampa Conservation Area]], Upper [[Dolpo|Dolpa]], [[Humla]], [[Manaslu]], [[Upper Mustang]], and the [[Kanchenjunga Conservation Area]].<ref name=arnold2016/><ref name=werhahn2017b>{{cite journal |doi=10.1017/S0030605317001077 |title=Conservation implications for the Himalayan wolf ''Canis (lupus) himalayensis'' based on observations of packs and home sites in Nepal |journal=Oryx |volume=53 |issue=4 |pages=1–7 |year=2017 |last1=Werhahn |first1=G. |last2=Kusi |first2=N. |last3=Sillero-Zubiri |first3=C. |last4=MacDonald|first4=D. W. |doi-access=free}}</ref> The Nepal Himalayas provide an important habitat refuge for the Himalayan wolf.<ref name=werhahn2018/> |
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===Relationship with the African golden wolf=== |
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In 2015, an mDNA study showed that the sequences from 3 wolf specimens from the Himalayas and Tibet clustered with those of the [[African golden wolf]] rather than the gray wolf.<ref name=koepfli2015/> In 2017, a study of [[mitochondrial DNA]] and other [[DNA sequences]] found that the Himalayan wolf formed a basal distinct [[monophyletic]] clade relative to the holarctic gray wolf. |
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==Behaviour and ecology== |
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[[File:Himalayan wolves.jpg|thumb|The wolves at the [[Padmaja Naidu Himalayan Zoological Park]], [[Darjeeling]] were found by a 2007 study to fall into the Himalayan wolf clade]] |
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[[File:Himalayan Wolf with skeleton.jpg|thumb|A Himalayan wolf with remains of an ungulate in Ladakh]] |
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Its degree of divergence to the holarctic gray wolf is similar to the degree of divergence of the [[African golden wolf]] from the holarctic gray wolf. The Himalayan wolf possesses a unique [[X-chromosome]] haplotype but shares a [[Y-chromosome]] haplotype with the African golden wolf. The study's samples show the range of the Himalayan wolf to include the Himalayas then north across the Tibetan plateau to the Qinghai Lake in Qinghai Province, China.<ref name=werhahn2017/> |
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The howls of the Himalayan wolf have lower frequencies, unmodulated frequencies, and are shorter in duration compared to Holarctic wolf howls. The Himalayan and North African wolves have the most acoustically distinct howls and differ significantly from each other and the Holarctic wolves.<ref name="hennelly2017"/> |
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===Diet=== |
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Various authorities have called for a study to collect and analyse the genetic samples from wolves from all areas in the Himalayas, in order to provide wide representation and hence more reliable results of genetic relatedness among the different wolf-like canids.<ref name=werhahn2017/><ref name=habib2013/><ref name=shrotriya2012/><ref name=subba2012/><ref name=cites2009/><ref name=cites2017/> |
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Himalayan wolves prefer wild over domestic prey. It usually prefers the smaller [[Tibetan gazelle]] over the larger [[white-lipped deer]], and the plains-dwelling Tibetan gazelle over the cliff-dwelling [[blue sheep]]. Supplementary diet includes the small [[Himalayan marmot]], [[Large-eared pika|big-eared pika]] and [[woolly hare]]. Himalayan wolves avoid livestock where wild prey is available, but habitat encroachment and the depletion of wild prey populations is expected to lead to conflict with herders. To protect them, securing healthy wild prey populations through setting aside wildlife habitat reserves and refuges is essential.<ref name=Werhahn2019>{{cite journal |title=Himalayan wolf foraging ecology and the importance of wild prey |journal=Global Ecology and Conservation |volume=20 |id=e00780 |year=2019 |last1=Werhahn |first1=G. |last2=Kusi |first2=N. |last3=Li |first3=X. |last4=Chen |first4=C. |last5=Zhi |first5=L. |last6=Lázaro Martín |first6=R. |last7=Sillero-Zubiri |first7=C. |last8=MacDonald |first8=D. W. |pages=e00780 |doi=10.1016/j.gecco.2019.e00780 |doi-access=free |bibcode=2019GEcoC..2000780W}}</ref> Other recorded prey species are [[Bactrian deer]], [[Yarkand deer]], [[Tibetan red deer]], [[Siberian roe deer]], [[Siberian ibex]], [[Tibetan wild ass]], [[Przewalski's horse]], [[wild yak]], [[markhor]], [[argali]] and [[urial]].<ref>{{cite web |title=Dietary spectrum in Himalayan wolves: comparative analysis of prey choice in conspecifics across high-elevation rangelands of Asia |last1=Lyngdoh |first1=S. B. |last2=Habib |first2=B. |last3=Shrotriya |first3=S. |date=2019 |website=Down to Earth |url=https://cdn.downtoearth.org.in/library/0.69048700_1565775720_dietary-spectrum-in-himalayan-wolves.pdf |access-date=7 August 2020 |archive-date=24 October 2020 |archive-url=https://web.archive.org/web/20201024183034/https://cdn.downtoearth.org.in/library/0.69048700_1565775720_dietary-spectrum-in-himalayan-wolves.pdf |url-status=live}}</ref> |
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Historical sources indicate that wolves occasionally killed children in Ladakh and [[Lahaul and Spiti district|Lahaul]].<ref name=pocock1941/> Within the proposed Gya-Miru Wildlife Sanctuary in Ladakh, the intensity of livestock depredation assessed in three villages found that Tibetan wolves were the most prevalent predators, accounting for 60% of the total livestock losses, followed by the snow leopard and Eurasian lynx. The most frequent prey were [[domestic goat]]s (32%), followed by sheep (30%), [[yak]]s (15%), and [[horse]]s (13%). The wolves killed horses significantly more, and goats less, than would be expected from their relative abundance.<ref name=fox2007/> |
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The recognition of a separate species or subspecies is pending on more DNA evidence from nuclear markers (taken from the [[cell nucleus]] rather than from the cell [[mitochondria]]).<ref name=chetri2016/> |
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==Conservation== |
==Conservation== |
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[[File: |
[[File:WOLVES.jpg|thumb|300px|Wolves in the Padmaja Naidu Himalayan Zoological Park in [[Darjeeling]]]] |
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The wolf in Bhutan, India, Nepal, and Pakistan is listed on [[CITES Appendix I]].<ref name=CITES>{{cite web |title=Species+: ''Canis lupus'' |website=CITES Secretariat and UNEP-WCMC |year=2010 |url=https://cites.org/eng/app/appendices.php |access-date=2021-03-27 |archive-date=2017-12-05 |archive-url=https://web.archive.org/web/20171205014647/https://cites.org/eng/app/appendices.php |url-status=live}}</ref> |
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In India, the wolf is protected under Schedule I of the ''[[Wildlife Protection Act, 1972]]'', which prohibits hunting; a zoo needs a permission from the government to acquire a wolf. It is listed as endangered in [[Jammu and Kashmir (state)|Jammu and Kashmir]], Himachal Pradesh, and Uttarakhand, where a large portion of the wolf population lives outside the protected area network.<ref name=shrotriya2012/> Lack of information about its basic ecology in this landscape is an obstacle for developing a conservation plan.<ref name=habib2013/> In Nepal, it is protected under Schedule I of the ''National Parks and Wildlife Conservation Act, 2029 (1973)'' prohibiting hunting it.<ref>{{cite book |author=Ministry of Forests |year=1973 |title=National Parks and Wildlife Conservation Act 2029 (1973) |publisher=Government of Nepal |location=Kathmandu, Nepal |url=http://www.aec-fncci.org/wp-content/uploads/2014/12/National-Parks-and-Wildlife-Conservation-Act-2029-1973.pdf |access-date=2018-12-25 |archive-date=2018-09-20 |archive-url=https://web.archive.org/web/20180920234340/http://www.aec-fncci.org/wp-content/uploads/2014/12/National-Parks-and-Wildlife-Conservation-Act-2029-1973.pdf |url-status=live}}</ref> In China, the wolf is listed as vulnerable in the ''Red List of China’s Vertebrates'', and hunting it is banned.<ref name=xu2015>{{cite journal |doi=10.7717/peerj.982 |pmid=26082870 |pmc=4465947 |title=Local villagers' perceptions of wolves in Jiuzhaigou County, western China |journal=PeerJ |volume=3 |id=e982 |year=2015 |last1=Xu |first1=Y. |last2=Yang |first2=B. |last3=Dou |first3=L. |pages=e982 |doi-access=free}}</ref><ref name=fang2016/> |
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===In captivity=== |
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The Himalayan wolf is listed as an endangered species in certain areas of [[Jammu and Kashmir]], [[Himachal Pradesh]], and [[Uttarakhand]]. A large portion of the wolf population in these areas exists outside of the protected area network, which is alarming for the initiatives of their conservation and suggests that management for conservation in these areas should equally consider the area outside protected areas.<ref name=shrotriya2012/> Their scarce populations and evolutionary uniqueness have been underlined in some recent studies. Lack of information about their basic ecology in this landscape is a severe hindrance towards a sound conservation plan for these animals.<ref name=habib2013/> |
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In 2007, 18 Himalayan wolves were kept for breeding in two Indian zoos. They were captured in the wild and were kept at the Padmaja Naidu Himalayan Zoological Park in [[West Bengal]], and in the [[Kufri, India|Kufri]] Zoo in Himachal Pradesh.<ref name=aggarwal2007/> |
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==Notes== |
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It has been suggested by several biologists in India for recognition as a [[critically endangered]] species of [[canid]].<ref name=sharma2004/> Although the Indian government has added the Himalayan wolf to its endangered species list in 1998, it still lacks legal protection in Tibet. |
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{{Notelist}} |
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==References== |
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===Captive breeding=== |
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{{Reflist|colwidth=30em|refs= |
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Eighteen Himalayan wolves are being bred in captivity. They were captured in the wild and are now being preserved in the trans-Himalayan region of India, at the [[Padmaja Naidu Himalayan Zoological Park]] in [[Shiwalik Hills]] on the lower range of the Himalaya in [[West Bengal]], and in the Kufri Zoo with [[Protected areas of Himachal Pradesh|Kufri Himalayan National Park]] located in [[Himachal Pradesh]] province.<ref name=aggarwal2003/> |
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<ref name=arnold2016>{{cite news|last1=Arnold|first1=C.|title=Woolly Wolf Spotted in Nepal Is Likely a New Species|url=http://news.nationalgeographic.com/2016/04/160428-himalayas-wolf-new-species-animals-nepal/|newspaper=[[National Geographic Society|National Geographic]]|access-date=29 April 2016|date=2016|archive-date=29 April 2016|archive-url=https://web.archive.org/web/20160429125619/http://news.nationalgeographic.com/2016/04/160428-himalayas-wolf-new-species-animals-nepal/|url-status=dead}}</ref> |
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<ref name=Bannasch2021>{{cite journal|doi=10.1038/s41559-021-01524-x|title=Dog colour patterns explained by modular promoters of ancient canid origin|year=2021|last1=Bannasch|first1=Danika L.|last2=Kaelin|first2=Christopher B.|last3=Letko|first3=Anna|last4=Loechel|first4=Robert|last5=Hug|first5=Petra|last6=Jagannathan|first6=Vidhya|last7=Henkel|first7=Jan|last8=Roosje|first8=Petra|last9=Hytönen|first9=Marjo K.|last10=Lohi|first10=Hannes|last11=Arumilli|first11=Meharji|last12=Lohi|first12=Hannes|last13=Kere|first13=Juha|last14=Daub|first14=Carsten|last15=Hytönen|first15=Marjo|last16=Araujo|first16=César L.|last17=Quintero|first17=Ileana B.|last18=Kyöstilä|first18=Kaisa|last19=Kaukonen|first19=Maria|last20=Arumilli|first20=Meharji|last21=Salonen|first21=Milla|last22=Sarviaho|first22=Riika|last23=Niskanen|first23=Julia|last24=Hundi|first24=Sruthi|last25=Puurunen|first25=Jenni|last26=Sulkama|first26=Sini|last27=Karjalainen|first27=Sini|last28=Sukura|first28=Antti|last29=Syrjä|first29=Pernilla|last30=Airas|first30=Niina|journal=Nature Ecology & Evolution|volume=5 |issue=10 |pages=1415–1423 |pmid=34385618|pmc=8484016 |bibcode=2021NatEE...5.1415B |display-authors=1}}</ref> |
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== See also == |
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* [[Tibetan wolf]] |
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* [[Indian wolf]] |
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<ref name=bhattacharya2010>{{cite journal |last1=Bhattacharya |first1=T. S. |year=2010 |title=Sighting of Tibetan Wolf ''Canis lupus chanko'' in the Greater Himalayan range of Nanda Devi Biosphere Reserve, Uttarakhand, India: a new record |journal=Journal of Threatened Taxa |volume=2 |issue=12 |pages=1345–1348 |url=http://threatenedtaxa.org/ZooPrintJournal/2010/November/o242326xi101345-1348.pdf |doi=10.11609/jott.o2423.1345-8 |url-status=dead |archive-url=https://web.archive.org/web/20121101104331/http://threatenedtaxa.org/ZooPrintJournal/2010/November/o242326xi101345-1348.pdf |archive-date=2012-11-01}}</ref> |
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== Notes == |
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{{notelist}} |
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<ref name=chetri2016>{{cite journal |last1=Chetri |first1=M. |last2=Jhala |first2=Y. |last3=Jnawali |first3=Shant R. |last4=Subedi |first4=N. |last5=Dhaka l |first5=M. |last6=Yumnam |first6=B. |title=Ancient Himalayan wolf (''Canis lupus chanco'') lineage in Upper Mustang of the Annapurna Conservation Area, Nepal |journal=ZooKeys |date=2016 |issue=582 |pages=143–156 |pmid=27199590 |pmc=4857050 |doi=10.3897/zookeys.582.5966 |bibcode=2016ZooK..582..143C |url=https://zookeys.pensoft.net/articles.php?id=5966&display_type=element&element_type=2&element_id=11&element_name= |doi-access=free |access-date=2018-01-15 |archive-date=2022-01-09 |archive-url=https://web.archive.org/web/20220109082923/https://zookeys.pensoft.net/articles.php?id=5966&display_type=element&element_type=2&element_id=11&element_name= |url-status=live }}</ref> |
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==References== |
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{{Reflist|colwidth=30em|refs= |
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<ref name=koblmuller2016>{{cite journal|doi=10.1111/jbi.12765|title=Whole mitochondrial genomes illuminate ancient intercontinental dispersals of grey wolves (''Canis lupus'')|journal=Journal of Biogeography |volume=43 |issue=9 |pages=1728–1738 |year=2016 |last1=Koblmüller |first1=S. |last2=Vilà|first2=C. |last3=Lorente-Galdos |first3=B. |last4=Dabad |first4=M. |last5=Ramirez |first5=O. |last6=Marques-Bonet |first6=T. |last7=Wayne |first7=R. K.|last8=Leonard |first8=J. A. |bibcode=2016JBiog..43.1728K |s2cid=88740690}}</ref> |
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<ref name=hennelly2017>{{cite journal|last1=Hennelly|first1=Lauren|last2=Habib|first2=Bilal|last3=Root-Gutteridge|first3=Holly|last4=Palacios|first4=Vicente|last5=Passilongo|first5=Daniela|title=Howl variation across Himalayan, North African, Indian, and Holarctic wolf clades: tracing divergence in the world's oldest wolf lineages using acoustics|journal=Current Zoology|date=2017|volume=63|issue=3|pages=341–348|doi=10.1093/cz/zox001|url=https://academic.oup.com/cz/article-lookup/doi/10.1093/cz/zox001}}</ref> |
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<ref name=leonard2007>{{cite journal|doi=10.1016/j.cub.2007.05.072|pmid=17583509|title=Megafaunal Extinctions and the Disappearance of a Specialized Wolf Ecomorph|journal=Current Biology|volume=17|issue=13|pages=1146–1150 |year=2007 |last1=Leonard|first1=J. A.|last2=Vilà|first2=C.|last3=Fox-Dobbs|first3=K.|last4=Koch|first4=P. L.|last5=Wayne|first5=R. K. |last6=Van Valkenburgh|first6=B.|bibcode=2007CBio...17.1146L |s2cid=14039133|url=http://www.es.ucsc.edu/~pkoch/pdfs/Koch%20papers/2007/Leonard%20et%2007%20CurBio%2017-1146.pdf |access-date=2015-08-27|archive-date=2016-12-28|archive-url=https://web.archive.org/web/20161228122803/http://www.es.ucsc.edu/~pkoch/pdfs/Koch%20papers/2007/Leonard%20et%2007%20CurBio%2017-1146.pdf |url-status=live}}</ref> |
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<ref name=miklosi2015>{{cite book|last1=Miklosi|first1=Adam|title=Dog Behaviour, Evolution, and Cognition|publisher=Oxford University Press|edition=2|series=Oxford Biology|year=2015|pages=106–107|url=https://books.google.com/books?id=VT-WBQAAQBAJ&pg=PA106|isbn=978-0199545667}}</ref> |
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<ref name=Matschie1907>{{cite book |author=Matschie, P. |year=1907 |chapter=Über Chinesische Säugetiere |title=Wissenschaftliche Ergebnisse der Expedition Filchner nach China und Tibet, 1903-1905 |editor=Filchner, W. |pages=134–242 |chapter-url=https://archive.org/details/bub_gb_0RswAAAAYAAJ/page/n181 |location= Berlin |publisher=Ernst Siegfried Mittler und Sohn}}</ref> |
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<ref name=pocock1941>Pocock, R. I. (1941). [https://archive.org/stream/PocockMammalia2/pocock2#page/n101/mode/2up ''Canis lupus chanco''] Pages 86–90 in: ''Fauna of British India: Mammals Volume 2''. Taylor and Francis, London</ref> |
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<ref name=pilot2010>{{cite journal|doi=10.1186/1471-2148-10-104|pmid=20409299|pmc=2873414|title=Phylogeographic history of grey wolves in Europe|journal=BMC Evolutionary Biology|volume=10|pages=104|year=2010|last1=Pilot|first1=Małgorzata|last2=Branicki|first2=Wojciech|last3=Jędrzejewski|first3=Włodzimierz|last4=Goszczyński|first4=Jacek|last5=Jędrzejewska|first5=Bogumiła|last6=Dykyy|first6=Ihor|last7=Shkvyrya|first7=Maryna|last8=Tsingarska|first8=Elena}}</ref> |
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<ref name=mivart1890>{{cite book |author=Mivart, S. G.|year=1890|title=Dogs, jackals, wolves, and foxes : a monograph of the Canidæ |location=London |publisher=E. H. Porter and Dulau & Co. |chapter=The Common Wolf |page=8 |chapter-url=https://archive.org/stream/dogsjackalswolv00keulgoog/dogsjackalswolv00keulgoog#page/n77/mode/2up}}</ref> |
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<ref name=reece2015>{{cite book|title=Campbell Biology Australian and New Zealand version|publisher=Pierson Australia |authors=Jane B. Reece, Noel Meyers, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson, Bernard N. Cooke|edition=10|year=2015|chapter=26-Phylogeny and the tree of life|pages=561–562|url=https://books.google.com/books?id=5t6aBQAAQBAJ&pg=PA561|isbn=9781486007042}}</ref> |
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<ref name=pilot2010>{{cite journal|doi=10.1186/1471-2148-10-104 |pmid=20409299 |pmc=2873414 |title=Phylogeographic history of grey wolves in Europe |journal=BMC Evolutionary Biology |volume=10 |pages=104 |year=2010 |last1=Pilot |first1=M. |last2=Branicki |first2=W. |last3=Jędrzejewski |first3=W. |last4=Goszczyński |first4=J. |last5=Jędrzejewska |first5=B. |last6=Dykyy |first6=I. |last7=Shkvyrya |first7=M. |last8=Tsingarska |first8=E. |issue=1 |doi-access=free |bibcode=2010BMCEE..10..104P }}</ref> |
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<ref name=shrotriya2012>{{Cite journal |url= http://www.currentscience.ac.in/cs/Volumes/103/08/0885.pdf |title=Wolves in Trans-Himalayas: 165 years of taxonomic confusion |last1=Shrotriya|first1=S. |last2=Lyngdoh|first2=S. |last3=Habib|first3=B. |date=2012 |journal=Current Science |volume=103 |issue=8 |access-date=June 27, 2014}}</ref> |
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<ref name=subba2012>{{cite web |last=Subba |first=S.A. |date=2012 |title=Assessing the genetic status, distribution, prey selection and conservation issues of Himalayan wolf (''Canis himalayensis'') in Trans-Himalayan Dolpa, Nepal |publisher=Rufford Small Grants Foundation |url =http://www.rufford.org/files/10322-1%20Detailed%20Final%20Report_0.pdf}}</ref> |
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<ref name=spotte2012>{{cite book|last1=Spotte|first1=Stephen|title=Societies of Wolves and Free-ranging Dogs|publisher=Cambridge University Press, Cambridge, UK|editors=|year=2012|chapter=1-What makes a wolf?|pages=4|url=https://books.google.com/books?id=-EQhAwAAQBAJ&pg=PA4|isbn=978-1-107-01519-7}}</ref> |
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<ref name=pioneer2014>[http://www.dailypioneer.com/state-editions/dehradun/snow-leopard-tibetan-wolf-sighted.html "Snow Leopard, Tibetan Wolf sighted"] {{Webarchive|url=https://web.archive.org/web/20181101140146/https://www.dailypioneer.com/state-editions/dehradun/snow-leopard-tibetan-wolf-sighted.html |date=2018-11-01 }}. The Pioneer, 15 February 2014.</ref> |
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<ref name=werhahn2017>{{cite journal |doi=10.1098/rsos.170186|title=Phylogenetic evidence for the ancient Himalayan wolf: Towards a clarification of its taxonomic status based on genetic sampling from western Nepal |journal=Royal Society Open Science |volume=4 |issue=6|pages=170186 |year=2017 |last1=Werhahn|first1=G. |last2=Senn |first2=H. |last3=Kaden|first3=J. |last4=Joshi|first4=J. |last5=Bhattarai|first5=S. |last6=Kusi|first6=N. |last7=Sillero-Zubiri|first7=C. |last8=MacDonald|first8=D. W. |url=http://rsos.royalsocietypublishing.org/content/royopensci/4/6/170186.full.pdf}}</ref> |
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<ref name=pocock1941>{{cite book |author=Pocock, R. I. |year=1941 |title=Fauna of British India |volume=Mammals Volume 2 |chapter=''Canis lupus chanco'' Gray. The Woolly Wolf |pages=86–90 |publisher=Taylor and Francis |location=London |chapter-url=https://archive.org/stream/PocockMammalia2/pocock2#page/n101/mode/2up}}</ref> |
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<ref name=wozencraft2005>{{MSW3 Wozencraft|id=14000751|pages=575–577}} url=https://books.google.com/books?id=JgAMbNSt8ikC&pg=PA576</ref><!--Note: the url must be kept outside of the MSW3 template for the link to arrive on the correct page--> |
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<ref name=reece2015>{{cite book |title=Campbell Biology Australian and New Zealand version |publisher=Pierson |location=Australia |name-list-style=amp |author=Reece, J. B. |author2=Meyers, N. |author3=Urry, L. A. |author4=Cain, M. L. |author5=Wasserman, S. A. |author6=Minorsky, P. V. |author7=Jackson, R. B. |author8=Cooke, B. N. |edition=10 |year=2015 |chapter=Phylogeny and the tree of life |pages=561–562 |chapter-url=https://books.google.com/books?id=5t6aBQAAQBAJ&pg=PA561 |isbn=9781486007042}}</ref> |
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<ref name=zhao2014>{{cite journal|doi=10.3109/19401736.2013.865181|pmid=24438245|title=The complete mitochondrial genome sequence of the Tibetan wolf (Canis lupus laniger)|journal=Mitochondrial DNA|volume=27|issue=1|pages=7–8|year=2014|last1=Zhao|first1=Chao|last2=Zhang|first2=Honghai|last3=Zhang|first3=Jin|last4=Chen|first4=Lei|last5=Sha|first5=Weilai|last6=Yang|first6=Xiufeng|last7=Liu|first7=Guangshuai}}</ref> |
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<ref name=rueness2011>{{cite journal |doi=10.1371/journal.pone.0016385 |pmid=21298107 |pmc=3027653 |title=The Cryptic African Wolf: ''Canis aureus lupaster'' is Not a Golden Jackal and is Not Endemic to Egypt |journal=PLOS ONE |volume=6 |issue=1|pages=e16385|year=2011|last1=Rueness|first1=E. K. |last2=Asmyhr |first2=M. G. |last3=Sillero-Zubiri|first3=C. |last4=MacDonald |first4=D. W. |last5=Bekele |first5=A. |last6=Atickem |first6=A. |last7=Stenseth |first7=N. C. |bibcode=2011PLoSO...616385R|doi-access=free }}</ref> |
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<ref name=sharma2004>{{Cite journal |last1=Sharma|first1=D. K. |last2=Maldonado |first2=J. E. |last3=Jhala |first3=Y. V. |last4=Fleischer |first4=R. C. |title=Ancient wolf lineages in India |doi=10.1098/rsbl.2003.0071 |journal=Proceedings of the Royal Society B: Biological Sciences |volume=271 |issue=Supplement 3 |pages=S1–S4 |date=2004 |pmid=15101402 |pmc=1809981}}</ref> |
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<ref name=shrotriya2012>{{Cite journal |url=http://www.currentscience.ac.in/cs/Volumes/103/08/0885.pdf |title=Wolves in Trans-Himalayas: 165 years of taxonomic confusion |last1=Shrotriya |first1=S. |last2=Lyngdoh |first2=S. |last3=Habib |first3=B. |date=2012 |journal=Current Science |volume=103 |issue=8 |access-date=June 27, 2014 |archive-date=September 23, 2015 |archive-url=https://web.archive.org/web/20150923230223/http://www.currentscience.ac.in/cs/Volumes/103/08/0885.pdf |url-status=live }}</ref> |
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<ref name=Signore2019>{{cite journal |doi=10.1093/molbev/msz097|pmid=31362306 |pmc=6759075 |title=Adaptive Changes in Hemoglobin Function in High-Altitude Tibetan Canids Were Derived via Gene Conversion and Introgression |journal=Molecular Biology and Evolution |volume=36|issue=10 |pages=2227–2237 |year=2019 |last1=Signore|first1=A. V.|last2=Yang |first2=Y.-Z. |last3=Yang |first3=Q.-Y. |last4=Qin|first4=G. |last5=Moriyama |first5=H. |last6=Ge|first6=R.-L. |last7=Storz |first7=J. F.}}</ref> |
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<ref name=subba2012>{{cite report |last=Subba |first=S.A. |date=2012 |title=Assessing the genetic status, distribution, prey selection and conservation issues of Himalayan wolf (''Canis himalayensis'') in Trans-Himalayan Dolpa, Nepal |publisher=Rufford Small Grants Foundation |url=http://www.rufford.org/files/10322-1%20Detailed%20Final%20Report_0.pdf |access-date=2015-11-19 |archive-date=2016-03-04 |archive-url=https://web.archive.org/web/20160304115205/http://www.rufford.org/files/10322-1%20Detailed%20Final%20Report_0.pdf |url-status=dead }}</ref> |
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<!-- <ref name=wang2015>{{cite journal|doi=10.1038/cr.2015.147|pmid=26667385|pmc=4816135|title=Out of southern East Asia: The natural history of domestic dogs across the world|journal=Cell Research |volume=26 |issue=1 |pages=21–33 |year=2015 |last1=Wang |first1=Guo-Dong |last2=Z. |first2=W. |last3=Yang |first3=H.-C. |last4=Wang |first4=L. |last5=Zhong |first5=L. |last6=Liu |first6=Y.-H. |last7=Fan|first7=R.-X. |last8=Yin |first8=T.-T. |last9=Zhu |first9=C.-L. |last10=Poyarkov |first10=A. D. |last11=Irwin |first11=D. M. |last12=Hytönen |first12=M. K. |last13=Lohi |first13=H. |last14=Wu |first14=C.-I. |last15=Savolainen |first15=P. |last16=Zhang |first16=Y.-P.}}</ref> --> |
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== External links == |
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*{{cite web |title=''Canis lupus himalayensis'' |work=NCBI.NLM.NIH.gov |publisher=National Center for Biotechnology Information, U.S. National Institutes of Health |url=https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?id=242525}} |
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[[Category: |
[[Category:Subspecies of Canis lupus]] |
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[[Category:Taxa named by John Edward Gray]] |
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[[Category:Mammals of Tibet]] |
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[[Category:Fauna of Tibet]] |
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Latest revision as of 08:26, 12 December 2024
Himalayan wolf | |
---|---|
Himalayan wolf in the Upper Mustang region of Annapurna Conservation Area in Nepal | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Carnivora |
Family: | Canidae |
Genus: | Canis |
Species: | |
Subspecies: | C. l. chanco
|
Trinomial name | |
Canis lupus chanco | |
Himalayan wolf distribution (red dots in highlands) compared with the holarctic grey wolf (blue dots in lowlands)[3] |
The Himalayan wolf (Canis lupus chanco) is a canine of debated taxonomy.[3] It is distinguished by its genetic markers, with mitochondrial DNA indicating that it is genetically basal to the Holarctic grey wolf, genetically the same wolf as the Tibetan and Mongolian wolf,[4][5][3] and has an association with the African wolf (Canis lupaster).[6][5][3] No striking morphological differences are seen between the wolves from the Himalayas and those from Tibet.[7] The Himalayan wolf lineage can be found living in Ladakh in the Himalayas, the Tibetan Plateau,[8][9] and the mountains of Central Asia[9] predominantly above 4,000 m (13,000 ft) in elevation because it has adapted to a low-oxygen environment, compared with other wolves that are found only at lower elevations.[8]
Some authors have proposed the reclassification of this lineage as a separate species.[10][11] In 2019, a workshop hosted by the IUCN/SSC Canid Specialist Group noted that the Himalayan wolf's distribution included the Himalayan range and the Tibetan Plateau. The group recommends that this wolf lineage be known as the "Himalayan wolf" and be classified as Canis lupus chanco until a genetic analysis of the holotypes is available. The Himalayan wolf lacks a proper morphological analysis.[12] The wolves in India and Nepal are listed on CITES Appendix I as endangered due to international trade.[13]
Taxonomy
[edit]Canis chanco was the scientific name proposed by John Edward Gray in 1863, who described a skin of a wolf that was shot in Chinese Tartary.[2] This specimen was classified as a wolf subspecies Canis lupus chanco by St. George Jackson Mivart in 1880.[14] In the 19th and 20th centuries, several zoological specimens were described:
- Canis niger by Philip Sclater in 1874 was a wolf specimen collected near Hanle in Kashmir.[15]
- Lupus filchneri by Paul Matschie in 1907 was a wolf skin from Xining in China's Qinghai province.[16] It had been collected by Wilhelm Filchner during an expedition to China and Tibet in 1903–1905.[17]
- Lupus karanorensis by Matschie in 1907 was a skin and a skull of a wolf that was shot in an oasis near Dunhuang in China in 1894.[16]
- Lupus tschiliensis by Matschie in 1907 was a skull of a wolf specimen that was shot in the coastal region of China's Zhili province.[16]
- Canis lupus coreanus by Yoshio Abe in 1923 was a wolf specimen from the vicinity of Seoul in the Korean Peninsula.[18]
In 1938, Glover Morrill Allen classified these specimens as synonyms for C. l. chanco.[19] In 1941, Reginald Pocock corroborated this assessment after reviewing wolf skins and skulls in the collection of the Natural History Museum, London.[20] In 2005, W. Christopher Wozencraft also listed C. l. niger, C. l. filchneri, C. l. karanorensis, and C. l. tschiliensis as synonyms for C. l. chanco.[21]
Canis himalayensis was proposed by Aggarwal et al. in 2007 for wolf specimens from the Indian Himalayas that differed in mitochondrial DNA from specimens collected in other parts of India.[10] In April 2009, Canis himalayensis was proposed as a distinct wolf species through the Nomenclature Specialist on the CITES Animals Committee. The proposal was based on one study that relied on only a limited number of museum and zoo samples that may not have been representative of the wild population.[7][22] The committee recommended against this proposal, but suggested that the name be entered into the CITES species database as a synonym for Canis lupus. The committee stated that the classification was for conservation purposes only, and did not "reflect the latest state of taxonomic knowledge".[23][24] Further fieldwork was called for.[7] This genetic lineage shows a 3.9% divergence in the mDNA cytochrome b gene when compared with the Holarctic grey wolf, which may justify it being classified as a distinct species.[3] In 2019, a workshop hosted by the IUCN/SSC Canid Specialist Group noted that the Himalayan wolf's distribution included the Himalayan range and the Tibetan Plateau. The group determined that the earliest available Latin name is Canis chanco Gray, 1863, but the geographic location of the holotype is unclear. The group recommends that this wolf lineage be known as the "Himalayan wolf" and classified as Canis lupus chanco until a genetic analysis of the holotypes is available.[12]
In 2020, more recent research on the Himalayan wolf genome indicates that it warrants species-level recognition under the Unified Species Concept, the Differential Fitness Species Concept, and the Biological Species Concept. It was identified as an evolutionary significant unit that warranted assignment onto the IUCN Red List for its protection.[8]
Characteristics
[edit]The Himalayan wolf has a thick, woolly fur that is dull earthy-brown on the back and tail, and yellowish-white on the face, tummy, and limbs. It has closely spaced black speckles on the muzzle, below the eyes, and on the upper cheeks and ears.[25]
Larger than the Indian and common European wolves,[26][27] it reaches 110 to 180 cm (45 to 70 in) in length, 68 to 76 cm (27 to 30 in) tall at the shoulder, and weighs around 30 to 55 kg (66 to 121 lb) on average.[7][20][28]
The heart of the Himalayan wolf can withstand the low oxygen level at high elevations. It has a strong selection for RYR2, a gene that initiates cardiac excitation.[29]
Phylogeography
[edit]The mitochondrial DNA of 27 wolves from the Himalayas and the Tibetan Plateau was compared in 2004. Results indicate that five related haplotypes formed a clade that is basal to all other wolves. This clade included one sample from Ladakh, nine from the Spiti Valley in Himachal Pradesh, four from Nepal, and two from Tibet. The Himalayan wolf clade diverged from other canids 800,000 years ago. Seven wolves from Kashmir did not fall into this clade.[30] The mtDNA of 18 captive wolves in the Padmaja Naidu Himalayan Zoological Park was analysed in 2007. Results showed that they shared a common female ancestor.[10] As this study was based on captive-bred zoo specimens that had descended from only two females, these samples were not considered to be representative. Additionally, the wolf population in the Kashmir Valley is known to have recently arrived in that area.[7][25] Subsequent genetic research showed that wolf samples from Tibet are genetically basal to the Holarctic gray wolf.[31][32][33][34] Its MT-ND4L gene commences with the base pairs GTG, whereas all other canids commence with ATG.[35] Results of whole genome sequencing showed that it is the most genetically divergent wolf.[36]
Analysis of scat samples from two wolves collected in upper Dolpo in Nepal matched the Himalayan wolf.[22] Fecal remains of four wolves collected in the upper Mustang region of the Annapurna Conservation Area also fell within the Himalayan wolf clade but formed a separate haplotype from those previously studied.[25]
The Himalayan wolf population in Tibet declined over the past 25,000 years and suffered a historical population bottleneck. Glaciation during the Last Glacial Maximum may have caused habitat loss, genetic isolation, and ancient inbreeding. The population in Qinghai had grown, though, showing a gene flow of 16% from Chinese indigenous dogs and 2% of the dingo's genome. It probably recolonised the Tibetan Plateau.[36] The Himalayan wolf contrasts with the wolves living at lower elevations in Inner Mongolia, Mongolia, and Xinjiang province. Some wolves in China and Mongolia also fall within the Himalayan wolf clade, indicating a common maternal ancestor and a wide distribution.[4] There was evidence of hybridization with the grey wolf at Sachyat-Ertash in the Issyk-Kul region of Kyrgyzstan, and of introgression from either the grey wolf or the dog into the Himalayan wolf in Nepal.[3]
A genomic study on China's wolves included museum specimens of wolves from southern China that were collected between 1963 and 1988. The wolves in the study formed three clades: north Asian wolves that included those from northern China and eastern Russia, wolves from the Tibetan Plateau, and a unique population from southern China. One specimen located as far southeast as Jiangxi province shows evidence of being admixed between Tibetan-related wolves and other wolves in China.[37]
Phylogenetic tree of Canis lupus with timing in years[a] | |||||||||||||||||||||
|
DNA sequences can be mapped to reveal a phylogenetic tree that represents evolutionary relationships, with each branch point representing the divergence of two lineages from a common ancestor. On this tree, the term “basal” is used to describe a lineage that forms a branch diverging nearest to the common ancestor.[38]
Relationship to the Indian lowland wolf
[edit]In 2021, a study compared both the mitochondrial DNA and the nuclear DNA (from the cell nucleus) from the wolves of the Himalayas with those of the wolves from the lowlands of the Indian subcontinent. The genomic analyses indicate that the Himalayan wolf and the Indian lowland wolf were genetically distinct from one another. These wolves were also genetically distinct from – and genetically basal to – the other wolf populations across the northern hemisphere. These other wolves form a single mitochondrial clade, indicating that they originated from a single expansion from one region within the last 100,000 years. However, the study indicated that the Himalayan wolf had separated from this lineage 496,000 years ago, and the Indian lowland wolf 200,000 years ago.[39]
Admixture with an unknown wolf-like canid
[edit]The Tibetan mastiff breed was able to adapt to the extreme highland conditions of the Tibetan Plateau very quickly, comparably to other mammals such as the yak, Tibetan antelope, snow leopard, and wild boar. The Tibetan mastiff's ability to avoid hypoxia in high elevations due to its higher hemoglobin levels compared to low-altitude dogs, was due to prehistoric interbreeding with the wolves of Tibet.[40][41]
In 2020, a genomic analysis indicates that the wolves of the Himalayas and the Tibetan plateau are closely related. These wolves have an admixed history which includes gray wolves, dogs, and a ghost population of an unknown wolf-like canid. This ghost population is deeply-diverged from modern Holarctic wolves and dogs, has contributed 39% to the Himalayan wolf's nuclear genome, and contributed the EPAS1 allele which can be found in both Himalayan wolves and dogs which allows them to live in high altitudes.[42]
Domestic dogs exhibit diverse coat colours and patterns. In many mammals, different colour patterns are the result of the regulation of the Agouti gene, which can cause hair follicles to switch from making black or brown pigments to yellow or nearly white pigments. The most common coat pattern found in modern wolves is agouti, in which the upperside of the body has banded hairs and the underside exhibits lighter shading. The colour yellow is dominant to the colour black and is found in dogs across much of the world and the dingo in Australia.[43]
In 2021, a study of whole genome sequences taken from dogs and wolves focused on the genetic relationships between them based on coat colour. The study found that most dog colour haplotypes were similar to most wolf haplotypes, however dominant yellow in dogs was closely related to white in arctic wolves from North America. This result suggests a common origin for dominant yellow in dogs and white in wolves but without recent gene flow, because this clade was found to be basal to the golden jackal and genetically distinct from all other canids. The most recent common ancestor of the golden jackal and the wolf lineage dates back to 2 million YBP. The study proposes that 35,000 YBP there was genetic introgression into the Late Pleistocene grey wolf from a ghost population of an extinct canid which had diverged from the grey wolf lineage over 2 million YBP. This colour diversity could be found 35,000 YBP in wolves and 9,500 YBP in dogs. A closely related haplotype exists among those wolves of Tibet which possess yellow shading in their coats. The study explains the colour relationships between modern dogs and wolves, white wolves from North America, yellow dogs, and yellowish wolves from Tibet. The study concludes that during the Late Pleistocene, natural selection laid the genetic foundation for modern coat colour diversity in dogs and wolves.[43]
Relationship with the African golden wolf
[edit]In 2011, the Himalayan, Indian and African wolves were proposed to represent ancient wolf lineages, with the African wolf having colonised Africa prior to the Northern Hemisphere radiation of the Holarctic gray wolf.[33]
Two studies of the mitochondrial genome of both modern and extinct gray wolves (Canis lupus) have been conducted, but these excluded the genetically divergent lineages of the Himalayan wolf and the Indian wolf. The ancient specimens were radiocarbon dated and stratigraphically dated, and together with DNA sequences, a time-based phylogenetic tree was generated for wolves. The study inferred that the most recent common ancestor for all other Canis lupus specimens – modern and extinct – was 80,000 years before present.[44][45] An analysis of the Himalayan wolf mitochondrial genome indicates that the Himalayan wolf diverged between 740,000 and 691,000 years ago from the lineage that would become the Holarctic gray wolf.[3]
Between 2011 and 2015, two mDNA studies found that the Himalayan wolf and Indian gray wolf were genetically closer to the African golden wolf than they were to the Holarctic gray wolf.[33][6] From 2017, two studies based on mDNA, and X-chromosome and Y-chromosome markers taken from the cell nucleus, indicate that the Himalayan wolf is genetically basal to the Holarctic gray wolf. Its degree of divergence from the Holarctic gray wolf is similar to the degree of divergence of the African wolf from the Holarctic wolf. The Himalayan wolf shares a maternal lineage with the African wolf. It possesses a unique paternal lineage that falls between the gray wolf and the African wolf.[5][3] The results of these two studies imply that the Himalayan wolf distribution range extends from the Himalayan range north across the Tibetan Plateau up to the Qinghai Lake region in China’s Qinghai Province.[5]
In 2018, whole genome sequencing was used to compare members of the genus Canis. The African golden wolf was found to be the descendant of a genetically admixed canid of 72% gray wolf and 28% Ethiopian wolf ancestry.[46] The Ethiopian wolf does not share the single-nucleotide polymorphisms that confer hypoxia adaptation with the Himalayan wolf. The adaptation of the Ethiopian wolf to living in high elevations may occur at other single-nucleotide polymorphism locations. This indicates that the Ethiopian wolf's adaptation has not been inherited by descent from a common ancestor shared with the Himalayan wolf.[3]
Distribution and habitat
[edit]In China, the Himalayan wolf lives on the Tibetan Plateau in the provinces of Gansu, Qinghai, Tibet,[47][48] and western Sichuan.[8]
In northern India, it occurs in the Union Territory of Ladakh and in the Lahaul and Spiti region in northeastern Himachal Pradesh.[20] In 2004, the Himalayan wolf population in India was estimated to consist of 350 individuals ranging across an area of about 70,000 km2 (27,000 sq mi).[30] Between 2005 and 2008, it was sighted in the alpine meadows above the treeline northeast of Nanda Devi National Park in Uttarakhand.[49] In 2013, a wolf was photographed by a camera trap installed at an elevation around 3,500 m (11,500 ft) near the Sunderdhunga Glacier in Uttarakhand's Bageshwar district.[50]
In Nepal, it was recorded in Api Nampa Conservation Area, Upper Dolpa, Humla, Manaslu, Upper Mustang, and the Kanchenjunga Conservation Area.[51][52] The Nepal Himalayas provide an important habitat refuge for the Himalayan wolf.[3]
Behaviour and ecology
[edit]The howls of the Himalayan wolf have lower frequencies, unmodulated frequencies, and are shorter in duration compared to Holarctic wolf howls. The Himalayan and North African wolves have the most acoustically distinct howls and differ significantly from each other and the Holarctic wolves.[53]
Diet
[edit]Himalayan wolves prefer wild over domestic prey. It usually prefers the smaller Tibetan gazelle over the larger white-lipped deer, and the plains-dwelling Tibetan gazelle over the cliff-dwelling blue sheep. Supplementary diet includes the small Himalayan marmot, big-eared pika and woolly hare. Himalayan wolves avoid livestock where wild prey is available, but habitat encroachment and the depletion of wild prey populations is expected to lead to conflict with herders. To protect them, securing healthy wild prey populations through setting aside wildlife habitat reserves and refuges is essential.[54] Other recorded prey species are Bactrian deer, Yarkand deer, Tibetan red deer, Siberian roe deer, Siberian ibex, Tibetan wild ass, Przewalski's horse, wild yak, markhor, argali and urial.[55]
Historical sources indicate that wolves occasionally killed children in Ladakh and Lahaul.[20] Within the proposed Gya-Miru Wildlife Sanctuary in Ladakh, the intensity of livestock depredation assessed in three villages found that Tibetan wolves were the most prevalent predators, accounting for 60% of the total livestock losses, followed by the snow leopard and Eurasian lynx. The most frequent prey were domestic goats (32%), followed by sheep (30%), yaks (15%), and horses (13%). The wolves killed horses significantly more, and goats less, than would be expected from their relative abundance.[56]
Conservation
[edit]The wolf in Bhutan, India, Nepal, and Pakistan is listed on CITES Appendix I.[13] In India, the wolf is protected under Schedule I of the Wildlife Protection Act, 1972, which prohibits hunting; a zoo needs a permission from the government to acquire a wolf. It is listed as endangered in Jammu and Kashmir, Himachal Pradesh, and Uttarakhand, where a large portion of the wolf population lives outside the protected area network.[7] Lack of information about its basic ecology in this landscape is an obstacle for developing a conservation plan.[57] In Nepal, it is protected under Schedule I of the National Parks and Wildlife Conservation Act, 2029 (1973) prohibiting hunting it.[58] In China, the wolf is listed as vulnerable in the Red List of China’s Vertebrates, and hunting it is banned.[59][60]
In captivity
[edit]In 2007, 18 Himalayan wolves were kept for breeding in two Indian zoos. They were captured in the wild and were kept at the Padmaja Naidu Himalayan Zoological Park in West Bengal, and in the Kufri Zoo in Himachal Pradesh.[10]
Notes
[edit]- ^ For a full set of supporting references refer to the note (a) in the phylotree at Evolution of the wolf#Wolf-like canids
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External links
[edit]- "Canis lupus himalayensis". NCBI.NLM.NIH.gov. National Center for Biotechnology Information, U.S. National Institutes of Health.