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Observations of Interspecific amplexus between western North American ranid frogs and the introduced American bullfrog (Rana catesbeiana) and an hypothesis concerning breeding interference

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Observations of Interspecific amplexus between western North American ranid frogs and the introduced American bullfrog (Rana catesbeiana) and an hypothesis concerning breeding interference; 2005; Article; Journal; American Midland Naturalist; Pearl, Christopher A.; Hayes, M. P.; Haycock, Russ; Engler, Joseph D.; Bowerman, Jay

Summary

Introduced American bullfrogs (Rana catesbeiana) come in contact with native amphibians on four continents and are well established in lowlands of western North America. To date, research on the effects of introduced bullfrogs on native frogs has focused on competition and predation, and is based largely on larval interactions. We present observations of interspecific amplexus between bullfrogs and two native ranid frogs (R. aurora and R. pretiosa) from six sites across the Pacific Northwest that imply that this interaction is more widespread than currently recognized. Our observations indicate that R. catesbeiana juveniles and subadults in this region are of appropriate size to elicit marked amplectic responses from males of both [...]

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Type Scheme Key
local-index unknown 1016368
local-pk unknown 1016368
series unknown American Midland Naturalist

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citationTypeArticle
journalAmerican Midland Naturalist
languageEnglish
parts
typevolume
value154
typeissue
value1

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