Composição de colônia e reprodução de Molossus rufus (E. Geoffroy) (Chiroptera, Molossidae) em um refúgio no sudeste do Brasil

Composition of colony and reproduction of Molossus rufus (E. Geoffroy) (Chiroptera, Molossidae) in roost at Southeastern Brazil

Molossidae; Molossus rufus; colony composition; roost; reproduction

Composição de colônia e reprodução de Molossus rufus (E. Geoffroy) (Chiroptera, Molossidae) em um refúgio no sudeste do Brasil

Composition of colony and reproduction of Molossus rufus (E. Geoffroy) (Chiroptera, Molossidae) in roost at Southeastern Brazil

Carlos Esbérard

Projeto Morcegos Urbanos, Fundação RIOZOO. Quinta da Boa Vista 20940-040, Rio de Janeiro, Rio de Janeiro, Brasil. E-mail: [e-mail]

ABSTRACT

In this study carried out in the Biological Reserve of Poço das Antas, Rio de Janeiro state, southeastern Brazil, a roost of Molossus rufus (E. Geoffroy, 1805) was sampled one night per month, from November 2000 to October, 2001. The colonies in this species can exceed more than five hundreds, being present both sexes. The total number of animals captured was higher in the spring and declined in the autumn and winter. Between April to July the proportion of males overcome the females, while in other months the females prevailed. Molossus rufus have seasonal reproduction. Females arrived by July and the number increases until November. Few animals remained in this roost during colder months. Such fact suggests that females and great part of the males leave this roof after the end of the reproduction. Pregnant females were captured between September, October, November and February. Lactating females were observed in August, October, November, December and February. Active males were observed in all months, being overcome by males with abdominal testes only in July.

Key words: Molossidae, Molossus rufus, colony composition, roost, reproduction

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AGRADECIMENTOS. Á administração da Reserva Biológica de Poço das Antas pela permissão da coleta (Processo 02045.000233/00-68) e a Associação Mico Leão pelo uso de suas instalações. A Dra Helena Bergallo, Dra. Cristina Nassar e André Pol agradeço as criticas valiosas. A Ana Carolina Duarte, Luis Fernando Menezes-Júmor, Joana D'Arc T. da Silva, Ana Paula Silva, Michelle Senna, Viviane M. Lins, Leonardo A. Florindo e Adarene Guimarães S. Motta, agradeço o auxílio no trabalho de campo.

Recebido em 24.VI.2002; aceito em 29.X.2002.

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Datas de Publicação

• Publicação nesta coleção
  11 Maio 2009
• Data do Fascículo
  Dez 2002

Histórico

• Aceito
  29 Out 2002
• Recebido
  24 Jun 2002