Sexual dimorphism in the pelvis of Antillean fruit-eating bat (Brachyphylla cavernarum) and its application to a fossil accumulation from the Lesser Antilles - 23/08/17
Abstract |
The pelvis of the Antillean fruit-eating bat (Brachyphylla cavernarum) displays strong sexual dimorphism. Here, we describe osteological criteria for determining the sex of this bat species. These criteria are applied to fossil deposits from the Blanchard Cave on the island of Marie-Galante (French West Indies), which contains abundant bat remains. This cave is currently occupied seasonally by a colony of Antillean fruit-eating bats as a nursery roost. Sex-ratios established for individuals from different fossil layers demonstrate the site to have been home to a nursery roost as early as 27,000 years ago, and probably going back as far as at least 40,000 years. These nursery roots are shown to alternate with periods where faunal assemblages were accumulated by owls.
Le texte complet de cet article est disponible en PDF.Keywords : Osteology, Taphonomy, Chiroptera, Sex ratio, Attritional mortality, Predation
Plan
☆ | Corresponding editor: Gilles Escarguel. |
Vol 50 - N° 4
P. 311-318 - août 2017 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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