Globally endangered (EN) (Source: IUCN Red List)


All Names

  • Scientific Names
    • Lithobates onca
    • Rana onca
  • English
    • Relict Leopard Frog

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Recent observations

Photos / Sounds



Relict Leopard Frog Lithobates onca




October 17, 2014


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Description from Wikipedia

The relict leopard frog (Lithobates onca) is a species of frog in the Ranidae family, endemic to the United States. It is found in Colorado, extreme northwestern Arizona, and adjacent Nevada and southwestern Utah, although its present range seems to be restricted to the Lake Mead National Recreation Area. Its natural habitat is freshwater springs and their outlets. It is threatened by habitat loss to agriculture and water development as well as invasive species.

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Conservation Summary

  • Globally
    endangered (EN) (Source: IUCN Red List)
    Critically imperiled (G1G2) (Source: NatureServe)
    Critically Imperiled. This frog occupies only 10-20 percent of the historical range and currently occurs in 8 natural and 5 translocation sites in Nevada. Primary threats include water diversions and developments, the presence of non-native predators and competitors, loss and fragmentation of habitat, and low numbers of individuals in metapopulations. Currently, no specific water developments or direct habitat losses are known that could result in impacts to the species, and the numbers of individuals and sites occupied by the frog are increasing through captive-rearing and translocation.
Source: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. . Downloaded on 10 November 2011.