File:Pillar Point Bluff Monterey Pine.jpg
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Captions
Captions
Monterey Pine on the Pillar Point Bluff Trail.
Summary
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| Description | Monterey Pine on the Pillar Point Bluff Trail, Moss Beach, Half Moon Bay, California. Monterey pine (Pinus radiata) can be considered both native and invasive in areas of the coastal California region. Their presence in Pillar Point is likely decreasing due to wildfire management and the practice of restoration ecology which targets the pines for removal outside of protected reserves. On the Pillar Point Bluff, some pines, particularly those that are unhealthy, are considered wildfire hazards and classified as non-native and invasive. Historically, the area was likely cleared in the past and used for grazing by ranchers before becoming a protected area. The pine trees were either planted or escaped timber plantations. Research into the ancient past, shows that the ancestors of the Monterey pine likely originated in Central America and spread into California 15 million years ago, inhabiting the Bay Area in the Pleistocene era. There is, however, no evidence of even distribution in the state within the past two million years. 8,000 years-ago the pines were driven to near extinction. In the nineteenth and twentieth century, it was common to find domesticated Monterey pines used in landscaping throughout the state, but this is less common today due to their wildfire and property risks and tendency to decrease garden biodiversity. In 2019 alone, the City of San Francisco removed three different Monterey pine forest stands for these and other reasons, and replaced them with native trees. Notably, the historical Presidio forest stand had an estimated age of about 130 years-old (which exceeds the average 80-90 year lifespan) before it was felled. Monterey pines are permitted to grow in the confines of a restricted range of five reserves in the US and Mexico, three of which are found farther south in California in the Ano Nuevo-Swanton area (Año Nuevo State Park), the Monterey-Carmel area, and Cambria; two islands offshore Baja California, Mexico, host two additional reserves. |
| Date | |
| Source | Own work |
| Author | Viriditas |
Licensing
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:42, 24 September 2023 | | 4,032 × 3,024 (5.35 MB) | Viriditas (talk | contribs) | == {{int:filedesc}} == {{Information |Description=Pillar Point Bluff Trail Monterey Pine. Pinus radiata can be considered both native and invasive in areas of the coastal California region. Their presence in Pillar Point is likely decreasing due to wildfire management and the practice of restoration ecology. They have reserves where they are allowed to grow, particularly farther north in the Año Nuevo State Park, and farther south, in Monterey and Cambria. |Source={{own}} |Date=2023-09-1... |
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