Bat Xy species richness in Neotropical bats: correlations with host ecology and host brain

Bordes Frédéric, Ricardo Guerrero, Morand Serge. 2008. Bat Xy species richness in Neotropical bats: correlations with host ecology and host brain. Oecologia, 158 (1) : pp. 109-116.

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Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Abstract : Patterns of ectoparasite species richness in mammals have been investigated in various terrestrial mammalian taxa such as primates, ungulates and carnivores. Several ecological or life traits of hosts are expected to explain much of the variability in species richness of parasites. In the present comparative analysis we investigate some determinants of parasite richness in bats, a large and understudied group of Xying mammals, and their obligate blood-sucking ectoparasite, streblid bat Xies (Diptera). We investigate the eVects of host body size, geographical range, group size and roosting ecology on the species richness of bat Xies in tropical areas of Venezuela and Peru, where both host and parasite diversities are high. We use the data from a major sampling eVort on 138 bat species from nine families. We also investigate potential correlation between bat Xy species richness and brain size (corrected for body size) in these tropical bats. We expect a relationship if there is a potential energetic trade-oV between costly large brains and parasite-mediated impacts. We show that body size and roosting in cavities are positively correlated with bat Xy species richness. No eVects of bat range size and group size were observed. Our results also suggest an association between body massindependent brain size and bat Xy species richness. (Résumé d'auteur)

Mots-clés Agrovoc : Chiroptera, Parasitisme, Diptera, Relation hôte parasite, Zone tropicale

Mots-clés géographiques Agrovoc : Pérou, Venezuela (République bolivarienne du)

Mots-clés complémentaires : Chauve-souris

Classification Agris : L72 - Pests of animals

Champ stratégique Cirad : Axe 4 (2005-2013) - Santé animale et maladies émergentes

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