Phenotypic variation can be expected among individuals of a species having a broad geographic distribution because genetic uniqueness can be exaggerated by adaptation to local environmental conditions. Paralaudakia caucasia is a widely distributed agamid species in the western Palearctic that occupies a region from Pakistan to the Lesser Caucasus. To describe the geographic variation in this taxon from Pakistan to the Lesser Caucasus, we examined 49 male P. caucasia from three regions in Iran (western Elburz, central Elburz, and eastern Elburz) and one in Pakistan. Twenty-five morphometric and meristic characters were examined using analyses of variance and principal components analysis. Of the measured characters, 21 were different among these populations. The differences among males representing the four groups indicate that these groups exhibit geographic variation corresponding to differences in environmental conditions from east to west. We suggest that future studies using more material from differentiated populations across the entire range will better elucidate how the environment has shaped this species' morphology.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 70 • No. 4