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The Ecology of the North Cascades is heavily influenced by the high elevation and rain shadow effects of the mountain range. The North Cascades is a section of the Cascade Range from the South Fork of the Snoqualmie River in Washington, United States, to the confluence of the Thompson and Fraser Rivers in British Columbia, Canada, where the range is officially called the Cascade Mountains but ...
Examples of amphibian species occurring in the North Cascades include the western toad (Bufo boreas) and the rough-skinned newt (Taricha granulosa). [26] The biodiversity of the area is threatened by global climate change and invasive exotic plant species. [24] These exotic plants thrive by utilizing manmade structures such as roads and trails ...
Eight distinctive life zones support thousands of different plant and animal species in the North Cascades National Park ecosystem. With an elevation gain of nearly 9,000 ft (2,700 m), the park has one of the largest ranges of biodiversity found in any US national park. [81] [82]
Apr. 25—Grizzly bears will be reintroduced to the North Cascades National Park, finalizing a long effort to bring the species back to the rugged mountains. "We are going to once again see ...
The grizzly bear species is currently listed as threatened in the lower 48 states, according to the National Park Service. ... Once in the North Cascade region, they will be monitored with fitted ...
Under the new plan, the bears in the North Cascades would be considered a nonessential experimental population under the Endangered Species Act, which the Park Service said will provide ...
Larch Mountain Salamander (Plethodon larselli) is a species of salamander in the family Plethodontidae. It is endemic to the United States. The Larch Mountain salamander occurs in the Cascade Mountains of southern Washington and northern Oregon. In Washington, it occurs from the Columbia River Gorge to just north of Snoqualmie Pass.
The Cascades is bordered on the north by the North Cascades ecoregion, on the south by the Klamath Mountains ecoregion, on the east by the Eastern Cascades Slopes and Foothills, and on the west by the Willamette Valley and Puget Lowland ecoregions. It been subdivided into six Level IV ecoregions in Washington and Oregon, as described below ...