U.S. Forest Service
Bobcats live in the lush habitat of the park's coniferous forest.
Overall, the park’s widespread coniferous forests--with a relatively mild climate and a mixture of plant species–-provide a lush habitat for animals to live. Wildlife species typically found include bobcat, gray fox, mountain kingsnake, Gilbert's skink, white-headed woodpecker, brown creeper, spotted owl, and a wide variety of bat species. Large snags are important as bat roosting sites.
At higher elevations, fewer wildlife species tend to be found due, in part, to the lower complexity of the forest. Species likely to be found include golden-mantled ground squirrel, chickaree, marten, Steller's jay, hermit thrush, and northern goshawk. Reptiles are not common but include rubber boa, western fence lizard, and alligator lizard.
Above treeline, the climate becomes harsh with a short growing season. Species such as pika, yellow-bellied marmot, white-tailed hare, Clark's nutcracker, and rosy finch are adapted to these conditions. Sierra Nevada bighorn sheep are found in the Yosemite area only around Tioga Pass, where a small, reintroduced population exists.
Despite the richness of high-quality habitats in Yosemite, approximately 40 species have a special status under California endangered species legislation. Three species-–grizzly bear, California red-legged frog, and foothill yellow-legged frog–-are believed to be extirpated in the park within recent history. Serious threats to Yosemite’s wildlife and the ecosystems they occupy include loss of a natural fire regime, exotic species, air pollution, habitat fragmentation, and climate change. On a more local basis, factors such as the availability of human food and occurrence of road kills negatively affect wildlife species.