Geographic distribution and phenetic skull variation in two close species of Graomys (Rodentia, Cricetidae, Sigmodontinae)
JJ Martínez, V Di Cola - Zoologischer Anzeiger-A Journal of Comparative …, 2011 - Elsevier
The interspecific differentiation of South American rodents of the genus Graomys was
assayed at ecological and morphometric levels in two species. At the ecological level, niche
modelling was used. At the morphometric level, the hypothesis that the size and shape of the
skull vary with the geographic location was tested using geometric morphometrics by
assessing the extent and spatial distribution of phenotypic skull variation within and among
two species, Graomys griseoflavus and Graomys chacoensis. Our results of niche modelling …
assayed at ecological and morphometric levels in two species. At the ecological level, niche
modelling was used. At the morphometric level, the hypothesis that the size and shape of the
skull vary with the geographic location was tested using geometric morphometrics by
assessing the extent and spatial distribution of phenotypic skull variation within and among
two species, Graomys griseoflavus and Graomys chacoensis. Our results of niche modelling …
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