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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Dataset Last Updated: August 30, 2017 at 12:00 AM

Steelhead population abundance is depressed throughout much of its southern range, and several Distinct Population Segments (DPSs) are listed as threatened or endangered under the US Endangered...

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• Organization: Department of the Interior
• Dataset Last Updated: February 25, 2025 at 12:00 AM

Wildlife populations are increasingly threatened by human activities. Most studies, however, are often short in duration or do not encompass the large spatial extent necessary to measure the...

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