Tracking the origin of the smearing behavior in long-nosed bats (Leptonycteris spp.)
Por:
Nassar, Jafet M., Galicia, Ruben, Ibarra, Ana, Medellin, Rodrigo A.
Publicada:
1 nov 2016
Resumen:
A unique and novel stereotypic `smearing' behavior and the formation of
an odoriferous dorsal patch have been recently described in two species
of long-nosed bats, Leptonycteris curasoae and L. yerbabuenae
(Glossophaginae: Phyllostomidae). It has been hypothesized that this
structure represents a mechanism involved in female mate choice mediated
through odor, and that it has only evolved within the genus
Leptonycteris. No evidence has been published indicating whether the
smearing behavior and the dorsal patch occur in L nivalis, the third
extant species within the genus. We reviewed the available data on the
mating behavior of L nivalis and conducted four surveys on the only
mating colony known-for this species at Cueva del Diablo, Tepoztlan,
Morelos, Mexico, searching for evidence of both the smearing behavior
and the dorsal patch in reproductive males of this species. Our findings
indicate that L.nivalis does not display the smearing behavior or the
dorsal patch, suggesting that this trait and its role in mate choice by
females must have evolved from a common ancestor of L yerbabuenae and L.
curasoae after-it separated from L. nivalis, between 1.0 and 0.5 million
years ago. We propose a possible hypothetical scenario for the evolution
of the smearing behavior, based on differential levels of ectoparasitic
pressure acting on bat populations established at with markedly
different environmental temperatures. (C) 2016 Published by Elsevier
GmbH on behalf of Deutsche Gesellschaft fur Saugetierkunde.
Filiaciones:
Nassar, Jafet M.:
Inst Venezolano Invest Cient, Ctr Ecol, Aptdo 20632,Carretera Panamer Km 11, Caracas 1020A, Venezuela
Galicia, Ruben:
Univ Nacl Autonoma Mexico, Inst Ecol, Ap Postal 70-275, Mexico City 04510, DF, Mexico
Ibarra, Ana:
Univ Nacl Autonoma Mexico, Inst Ecol, Ap Postal 70-275, Mexico City 04510, DF, Mexico
Medellin, Rodrigo A.:
Univ Nacl Autonoma Mexico, Inst Ecol, Ap Postal 70-275, Mexico City 04510, DF, Mexico
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