Retrieving Peromyscus bullatus from P. difficilis (Rodentia: Cricetidae) through cranial morphometry in a mammal collection

Peromyscus bullatus and Peromyscus difficilis are sympatric and phenotypically similar rodents. Because of this, misidentification of both species is frequent in the field and in mammal collections. In this study, P. bullatus specimens were retrieved from the P. difficilis specimens, in the mammal c...

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Détails bibliographiques
Auteurs principaux: Falfán, Ina, Montero-Bagatella, Sandra H., González-Christen, Alvar
Format: Online
Langue:eng
Publié: Instituto de Ecología, A.C. 2019
Accès en ligne:https://azm.ojs.inecol.mx/index.php/azm/article/view/2082
Description
Résumé:Peromyscus bullatus and Peromyscus difficilis are sympatric and phenotypically similar rodents. Because of this, misidentification of both species is frequent in the field and in mammal collections. In this study, P. bullatus specimens were retrieved from the P. difficilis specimens, in the mammal collection of the Instituto de Investigaciones Biológicas of the Universidad Veracruzana, through the analysis of morphometric measurements of the tympanic bulla, proposed by González-Ruíz et al. (2005) as discrimination key variables between both species.