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Genetic Variation in Western Salamanders of the Genus Plethodon, and the Status of Plethodon gordoni

Juliana H. Feder, Gloria Z. Wurst and David B. Wake
Herpetologica
Vol. 34, No. 1 (Mar., 1978), pp. 64-69
Published by: Allen Press on behalf of the Herpetologists' League
Stable URL: http://www.jstor.org/stable/3891612
Page Count: 6
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Genetic Variation in Western Salamanders of the Genus Plethodon, and the Status of Plethodon gordoni
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Abstract

Samples of Plethodon gordoni, Plethodon dunni and Plethodon vehiculum from an area of sympatry in western Oregon were examined by methods of starch-gel electrophoresis involving 24 presumptive genetic loci. Although P. dunni and P. vehiculum are very distinct from one another (D = 1.208) and from Plethodon elongatus (D = 1.320 and 1.708, respectively), P. gordoni is nearly identical (D = 0.001) to P. dunni. Attempts to verify reported morphological distinctions between P. dunni and P. gordoni were unsuccessful, and thus available evidence suggests strongly that P. gordoni is only a somewhat localized color morph of P. dunni.

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