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The golden toad of Monteverde, Costa Rica, was among the first casualties of amphibian declines.Formerly abundant, it was last seen in 1989. Since the 1980s, decreases in amphibian populations, including population decline and localized mass extinctions, have been observed in locations all over the world.
Non-native fish introductions and the decline of the mountain yellow-legged frog from within protected areas. Conservation Biology 14(2), 428–38. Pister, E. P. (2001). Wilderness fish stocking: history and perspective. Ecosystems 4(4):279-86. Stuart, S. N., et al. (2004). Status and trends of amphibian declines and extinctions worldwide.
The California tiger salamander is a relatively large, secretive amphibian endemic to California. Adults can grow to a total length of about 7–8 inches. It has a stocky body and a broad, rounded snout. Adults are black with yellow or cream spots; larvae are greenish-grey in color.
Amphibians are in decline worldwide, with 2 out of every 5 species threatened by extinction, according to a paper published Wednesday in the scientific journal Nature.
According to the International Union for Conservation of Nature (IUCN), 93 reptile and amphibian species in the United States are threatened with extinction. [1] The IUCN has classified each of these species into one of three conservation statuses: vulnerable VU, endangered EN, and critically endangered CR.
A new law designates the California red-legged frog the “state amphibian.” Presently, it is subject to protection under both federal and state laws passed in 1996. Although the designation as official state amphibian does not provide legal protection to the frog as a threatened species, it does highlight the importance that California ...
California is losing population and it turns out that among those fleeing to other states, including Texas, Nevada and Arizona, are high-income earners that California relies on for state tax revenue.
Globally, populations of amphibians are declining in size as a result of habitat loss, predation by nonindigenous sport fishes, timber harvest, increased ultraviolet radiation, and disease. The widespread declines of amphibian populations throughout the Rocky Mountains mirror these global trends.