On the Ecology of Coexistence in Parthenogenetic and Bisexual Lizards of the Genus Cnemidophorus |
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Authors: | CUELLAR ORLANDO |
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Affiliation: | Department of Biology, University of Utah Salt Lake City, Utah 84112 |
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Abstract: | In the center of their distribution in North America, membersof a complex of parthenogenetic and bisexual lizards of thegenus Cnemidophorus may be found side by side with one or moreof the others in a bewildering variety of patterns and ecologicalassociations. Exactly why so many congeneric species are foundliving together and exactly what their ecological, physiologicaland geographical requirements are remains virtually unknown.Here 1 summarize all reported cases of sympatry among six speciesof Cnemidophorus and discuss in detail specific examples ofsome of these interactions based on several years of field collectionsand observations. In addition I present the first field experimentalstudy designed to understand the ecological relationships ofsympatry in Cnemidophorus. |
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