New data on the bats (Chiroptera) of Martinique island (Lesser Antilles), with an emphasis on sexual dimorphism and sex ratios
Résumé
For deciphering the biodiversity of native mam-mals on the island of Martinique (Lesser Antilles), bats (Chiroptera) were netted in various localities during the course of two separate studies spanning 2004–2015. A total of 2613 individuals were caught in ground-level mist nets at 79 localities. In this study, we concentrate on 1859 captures of nine species of bats caught at 24 capture-rich localities. We provide sex-ratio values, forearm and body weight measurements for each taxon. The order of decreasing abundance in captures was Artibeus jamaicen-sis, Sturnira angeli, Brachyphylla cavernarum, Monophyl-lus plethodon, Myotis martiniquensis, Molossus molossus, Ardops nichollsi, Pteronotus davyi and Tadarida brasilien-sis. Our results suggest a strong sex-bias in capture rates, with males much more abundant for Ardops and Mono-phyllus, whereas females are more abundant for Molossus, Pteronotus and Sturnira. A clear sexual dimorphism exists with larger females in Ardops and Pteronotus, whereas males are larger in Molossus, Monophyllus and Sturnira. Reproductive females (pregnant, lactating) were found almost exclusively during the dry season (January to June) for A. jamaicensis, M. plethodon and S. angeli.
Fichier principal
new_data_on_the_bats_of_martinique_catzeflis_f._et_al_2018.pdf (337.18 Ko)
Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...