How many mountain yellow-legged frogs are left?

For the mountain yellow-legged frog, severe population fragmentation has led to population estimates of fewer than 200 individuals remaining in the wild.

Why are mountain yellow-legged frog important?

The yellow-legged frog is a keystone species meaning that they are both predator and prey. They eat insects, eggs, tadpoles and even other frogs. In return they are consumed by native garter snakes.

Where is the mountain yellow-legged frog found?

The mountain yellow-legged frog (Rana muscosa), also known as the southern mountain yellow-legged frog, is a species of true frog endemic to California in the United States. It occurs in the San Jacinto Mountains, San Bernardino Mountains, and San Gabriel Mountains in Southern California and the Southern Sierra Nevada.

How long have mountain yellow-legged frog been endangered?

Since about 1970, mountain yellow-legged frog numbers and populations have undergone a precipitous decline throughout the Sierra Nevada (Sherman and Morton 1993, Jennings and Hayes 1994, Bradford et al. 1994a, Jennings 1996, Drost and Fellers 1996, Matthews and Knapp 1999, Knapp and Matthews 2000).

Are yellow legged frogs endangered?

Endangered (Population decreasing)Mountain yellow-legged frog / Conservation status

What did humans do that may have contributed to the decline in the mountain yellow-legged frog population?

Extensive research identifies two main reasons for their decline. First, trout were introduced in high-elevation lakes to draw recreationists and tourists to the area. This created an imbalance in the natural world. Trout eat tadpoles and small frogs and compete with frogs for insects.

Why have mountain yellow-legged frog populations been declining in Yosemite National Park?

Sierra Nevada Yellow-legged Frog (Rana sierrae) The primary factors implicated in the decline of the frog are the introduction of non-native fish into a majority of lakes and streams in the Sierra Nevada, and the recently-discovered amphibian chytrid fungus.

What did humans do that may have contributed to the decline in the mountain yellow-legged frog?

Why are California red legged frogs endangered?

These frogs are federally listed as threatened. Threats to their population include invasive species, habitat loss, and overexploitation. In the 19th and 20th centuries, they were overharvested for food. Now water resources are overused, depleting frogs of the water habitat they need for homes and breeding.

Are yellow-legged frogs endangered?

What is being done to save the mountain yellow-legged frog?

After years of federal foot-dragging and a 2016 Center suit, we won a settlement requiring the Service to determine whether the frog warrants protection. In response to our legal action, the feds finalized a recovery plan for the endangered Southern California population of mountain yellow-legged frogs in 2019.

What kind of frog is the mountain yellow-legged frog?

Vredenburg, V. T., et al. (2007). Concordant molecular and phenotypic data delineate new taxonomy and conservation priorities for the endangered mountain yellow-legged frog (Ranidae: Rana muscosa ). Journal of Zoology 271:361-74.

Can you help fight back for the mountain yellow-legged frog?

We need your help fighting back. The mountain yellow-legged frog has two populations that have been declared separate subspecies: a northern and central Sierra Nevada population, and a southern Sierra Nevada and Southern California population. Both populations are adapted to high-elevation habitats without aquatic predators.

When do yellow legged frogs come out in the winter?

Mountain yellow-legged frog. The frog emerges from its wintering site soon after snowmelt. Its breeding season begins once the highest meltwater flow is over, around March through May in the southern part of its range, and up to July in higher mountains to the north.

Is the mountain yellow-legged frog (Rana muscosa) endangered?

Concordant molecular and phenotypic data delineate new taxonomy and conservation priorities for the endangered mountain yellow-legged frog (Ranidae: Rana muscosa ). Journal of Zoology 271:361-74. Wikimedia Commons has media related to Rana muscosa (Mountain yellow-legged frog). Fisher, R. N. and T. J. Case. (2003).