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Journal Article

A Cladistic Analysis of Chorus Frog Phylogeny (Hylidae: Pseudacris)

Reginald B. Cocroft
Herpetologica
Vol. 50, No. 4 (Dec., 1994), pp. 420-437
Published by: Allen Press on behalf of the Herpetologists' League
Stable URL: http://www.jstor.org/stable/3892719
Page Count: 18
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A Cladistic Analysis of Chorus Frog Phylogeny (Hylidae: Pseudacris)
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Abstract

Studies of the relationships among Holarctic hylid frogs encompass a wide range of data sets, and different authors have used different methods of analysis in deriving relationships. It is thus unclear whether differences among hypotheses of relationships proposed in the literature reflect conflicts among different sources of data, different methods, or both. In this study, I provide a summary of available data for one group within Holarctic hylids, the genus Pseudacris, combining published morphological, biochemical, and behavioral data sets into a single analysis. Results of this analysis place Limnaoedus ocularis between the Pseudacris nigrita and P. ornata species groups and suggest that Hyla crucifer is the sister species to this clade. The Hyla regilla-H. cadaverina clade does not arise within Pseudacris, but whether it arises basally to the clade comprising Pseudacris, H. crucifer, and L. ocularis is not resolved.

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