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Contact: Yasmeen Sands
ysands@fs.fed.us
206-732-7823
USDA Forest Service - Pacific Northwest Research Station

Sample Set of Evidentiary Standards

Caption: A sample set of evidentiary standards based on a gradient of increasing species rarity. The relative reliability of data types is expected to vary among organism groups.

Credit: McKelvey et al.

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Related news release: Reliance on unverifiable observations hinders successful conservation of wildlife species


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