150 likes | 520 Views
Forensic Entomology. An Introduction Biol450. http://t2.gstatic.com/images?q=tbn:ANd9GcQjclpf39fua3S8EiCx4Qq5Ley_Zt0ylOJABgHSS1fcV5jewg2zyw. An Introduction to Forensic Entomology. What is forensic entomology? What are the stages of decomposition? What are some of the key players?.
E N D
Forensic Entomology An Introduction Biol450 http://t2.gstatic.com/images?q=tbn:ANd9GcQjclpf39fua3S8EiCx4Qq5Ley_Zt0ylOJABgHSS1fcV5jewg2zyw
An Introduction to Forensic Entomology • What is forensic entomology? • What are the stages of decomposition? • What are some of the key players?
What is forensic entomology? • Forensic entomology is the use of insects, or arthropods, to investigate legal cases. • Can involve both human and wildlife cases • Cases can be related to untimely deaths, neglect, and foul play • Can help pinpoint time of death, and location • Can also be associated with grain industry and food cases http://natagri.ufs.ac.za/dl/userfiles/Images/00003/2123_eng.jpg
What are the stages of decomposition? • 5 stages: • Fresh • Bloat • Active Decay • Advanced Decay • Dry/Skeletal • Stages of Colonization • Allows for time of death calculations • Post mortem intervals (PMI) http://www.nhm.ac.uk/resources/research-curation/consulting/flash-image-faders/forensic-entomology/images/calliphora-larvae.jpg
Colonization Blowflies Flesh flies Predaceous flies Carrion Beetles Rove beetles Carpet Beetles Lepidoptera Time Courtesy of Nancy Ostiguy
Blow flies Carpet beetles Predatory flies Carrion beetles Mel Bishop 2007 Rove Beetles Clothes moths Flesh flies Courtesy of Dr Ke Chung Kim
Eggs… Courtesy of Dr Ke Chung Kim
Young maggots Courtesy of Dr Ke Chung Kim
Older maggots Courtesy of Dr Ke Chung Kim
Maggot mass Courtesy of Dr Ke Chung Kim
Field Studies • Collection and analysis from field Courtesy of Dr Ke Chung Kim
Collection http://www.itsgov.com/wp-content/uploads/2012/09/forensic-entomology.jpg
Summary • Forensic Entomology • Decomposition • Colonization • Future Classes • Forensic Science major http://www.forensics.psu.edu/