Echolocation calls and flight behaviour of the elusive pied Butterfly Bat (Glauconycteris superba), and new data on Its morphology and ecology

• Autorzy: Ing R.K. , Colombo R. , Gembu G.-C. , Bas Y. , Julien J.-F. , Gager Y. , Hassanin A.
• Języki publikacji: EN

Abstrakty

EN

The pied butterfly bat, Glauconycteris superba, is endemic to the tropical forest zone of Africa, where it was previously known from only five specimens. Here we report the capture of 10 individuals in two localities of the Democratic Republic of the Congo (Mbiye Island and Yoko forest reserve), and we present the first acoustic data of the species recorded using a conventional microphone and a home-made acoustic system for real time 3D localization. Our morphological comparisons show that females are larger and heavier than males, and that the two sexes exhibit the same fur coloration pattern. We found some individual variations concerning the width of the two lateral white stripes on the belly, and the number and extension of white shoulder-spots. The echolocation recordings show evidence for alternation between two call types (A and B), differing in frequency, bandwidth, and duration. The acoustic signals obtained before captures and after releases revealed important variations depending on the trajectories and environmental conditions. Acoustic characteristics, wing measurements, and the unique black and white fur pattern of G. superba suggest that it is a canopy species able to fly at high speeds. Our findings will be useful for future ecological studies to provide new data on the range, population size, trend and threats of G. superba in order to better assess its conservation status.

• Wydawca: -
• Czasopismo: Acta Chiropterologica
• Rocznik: 2016
• Tom: 18
• Numer: 2
• Opis fizyczny: p.477-488,fig.,ref.

Twórcy

autor

Ing R.K.

• Institut Langevin, UMR 7587 CNRS, Universite Paris Diderot (Paris 7), 1 rue Jussieu, 75238 PARIS Cedex 05, France

autor

Colombo R.

• Asellia Ecologie, 60 chemin de la Nuirie, 04200 Sisteron, France

autor

Gembu G.-C.

• Faculté des Sciences, Universite de Kisangani, Republique Democratique du Congo

autor

Bas Y.

• Centre d'Ecologie et de Sciences de la Conservation, UMR 7204 CNRS MNHN, Museum national d'Histoire naturelle, 43, rue Buffon, 75005 Paris, France

autor

Julien J.-F.

• Centre d'Ecologie et de Sciences de la Conservation, UMR 7204 CNRS MNHN, Museum national d'Histoire naturelle, 43, rue Buffon, 75005 Paris, France

autor

Gager Y.

• Department of Migration and Immuno-Ecology, Max Planck Institute for Ornithology, 78315 Radolfzell, Germany

autor

Hassanin A.

• Institut de Systematique, Evolution, Biodiversite, UMR 7205 CNRS MNHN UPMC, Museum national d'Histoire naturelle, 55, rue Buffon, 75005 Paris, France

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Identyfikatory

DOI

10.3161/15081109ACC2016.18.2.014