Apparent Predation by Gray Jays, Perisoreus canadensis, on Long-toed Salamanders, Ambystoma macrodactylum, in the Oregon Cascade Range

Michael P. Murray, Christopher A. Pearl, R. Bruce Bury

Abstract


We report observations of Gray Jays (Perisoreus canadensis) appearing to consume larval Long-toed Salamanders (Ambystoma macrodactylum) in a drying subalpine pond in Oregon, USA. Corvids are known to prey upon a variety of anuran amphibians, but to our knowledge, this is the first report of predation by any corvid on aquatic salamanders. Long-toed Salamanders appear palatable to Gray Jays, and may provide a food resource to Gray Jays when salamander larvae are concentrated in drying temporary ponds.

Keywords


Gray Jay; Perisoreus canadensis; Long-toed Salamander; Ambystoma macrodactylum; amphibian; corvid; diet; larvae; pond

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DOI: http://dx.doi.org/10.22621/cfn.v119i2.116



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