Globally vulnerable (VU) (Source: IUCN Red List)


All Names

  • Scientific Names
    • Rana pretiosa
    • Rana pretiosa pretiosa
  • English
    • Oregon Spotted Frog

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Recent observations

Photos / Sounds


Oregon Spotted Frog Rana pretiosa


March 20, 2013




A small population of Oregon Spotted Frogs was discovered in the Cascade-Siskiyou National Monument in 2003.

According to Southern Oregon University biologist, Michael Parker, this species is "the most imperiled amphibian species in the Pacific Northwest" - 2009 Status Report

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Description from Wikipedia

The Oregon spotted frog (Rana pretiosa, meaning "precious frog") is a member of the frog family Ranidae of order Anura. It is a medium-sized aquatic frog endemic to the Pacific Northwest and historically well distributed in the Puget Trough/Willamette Valley province and the Cascade Mountains of south-central Washington and Oregon. It is relatively rare within its range and is listed globally as vulnerable.


Conservation Summary

  • Globally
    vulnerable (VU) (Source: IUCN Red List)
    Imperiled (G2) (Source: NatureServe)
    Imperiled. Significant declines in distribution and abundance have occurred in much of the range (southwestern British Columbia to northeastern California); major threats include introduced predators, habitat loss/degradation, inadequate habitat size, and possibly disease and climate change.
Source: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. . Downloaded on 10 November 2011.