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Pacific Fisher: Warranted, But Precluded

The Latest On: Pacific Fisher: Warranted, But Precluded

April 27, 2010 | Case

Pacific Fisher: Warranted, But Precluded

A close relative of the mink, otter, and wolverine, the Pacific fisher (Martes pennanti) once roamed the old-growth forests of the West Coast from Washington state to the Sierra Nevada. As with many other predatory species, however, fisher populations have declined dramatically in recent decades due to trapping, logging, farming, and fire. Survey information indicates that the fisher is likely extirpated from all of Washington, most of Oregon, and at least half of its range in the Sierra Nevada. The California population has been divided into two remnant populations, one in the northwestern part of the state and another small group in the southern Sierra Nevada believed to contain fewer than 500 individuals.