| Klamath Mountains | |
|---|---|
&sq=Qlik&lang=&file=File:Bear_Mountain_and_tarn_below_Devils_Punchbowl_in_Siskiyou_Wilderness.jpg) Bear Mountain in the Siskiyou Wilderness of California | |
&sq=Qlik&lang=&file=File:Klamath-Siskiyou_Forests_map.svg) | |
| Ecology | |
| Realm | Nearctic |
| Biome | Temperate coniferous forests |
| Borders | |
| Bird species | 220[1] |
| Mammal species | 87[1] |
| Geography | |
| Area | 50,245 km2 (19,400 sq mi) |
| Country | United States |
| States | |
| Coordinates | 41°30′N 123°18′W / 41.5°N 123.3°W |
| Conservation | |
| Conservation status | Critical/Endangered[2] |
| Global 200 | Yes |
| Habitat loss | 4.4045%[1] |
| Protected | 56.99%[1] |
The Klamath Mountains ecoregion of Oregon and California lies inland and north of the Coast Range ecoregion, extending from the Umpqua River in the north to the Sacramento Valley in the south. It encompasses the highly dissected ridges, foothills, and valleys of the Klamath and Siskiyou Mountains. It corresponds to the Level III ecoregion designated by the Environmental Protection Agency and to the Klamath-Siskiyou forests ecoregion designated by the World Wide Fund for Nature.[3]
The ecoregion, also known as a geomorphic province,[4] was unglaciated during the Pleistocene epoch, when it served as a refuge for northern plant species. Its mix of granitic, sedimentary, metamorphic, and extrusive rocks contrasts with the predominantly volcanic rocks of the Cascades ecoregion to the northeast. The mild, subhumid climate of the region is characterized by a lengthy summer drought. It supports a mosaic of both northern Californian and Pacific Northwestern conifers and hardwoods.[5]
- ^ a b c d Hoekstra, J. M.; Molnar, J. L.; Jennings, M.; Revenga, C.; Spalding, M. D.; Boucher, T. M.; Robertson, J. C.; Heibel, T. J.; Ellison, K. (2010). Molnar, J. L. (ed.). The Atlas of Global Conservation: Changes, Challenges, and Opportunities to Make a Difference. University of California Press. ISBN 978-0-520-26256-0.[dead link]
- ^ "Klamath-Siskiyou | Ecoregions | WWF". World Wildlife Fund. Retrieved 2020-11-16.
- ^ "Klamath-Siskiyou forests". Terrestrial Ecoregions. World Wildlife Fund.
- ^ California State University, Northridge
- ^
This article incorporates public domain material from Thorson, TD; Bryce, SA; Lammers, DA; et al. Ecoregions of Oregon (PDF). United States Geological Survey. (color poster with map, descriptive text, summary tables, and photographs; with a Reverse side).
