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Notes on the lesser white-lined bat, Saccopteryx leptura (Schreber) (Chiroptera, Emballonuridae), from southeastern Brazil

Abstract

Saccopteryx leptura (Schreber, 1774) is reported from two new localities in southeastern Brazil, both in Atlantic forest remains in the state of Rio de Janeiro. Analysisof food material showed that individuals from both localities had preyedon insects in the order Hymenoptera. Cheek contents were available from one specimen, and in this case identification of the food item (flying ants) achieved generic level (Pheidole Westwood, 1841). Aspects in the social behavior observed in a colony suggest that the same traits documented in Central American populations (small colonies, monogamic mating system, and retention of young for up to a year in the parental unit) may also characterize this species in the southern most part of its range. In both external and craniodental selected measurements, specimens from Rio de Janeiro were close to the upper limits of the ranges known for the species.

Chiroptera; Emballonuridae; Saccopteryx leptura; morphometrics; feeding habits; social behavior; Rio de Janeiro; Southeastern Brazil


Notes on the lesser white-lined bat, Saccopteryx leptura (Schreber) (Chiroptera, Emballonuridae), from southeastern Brazil

Marcelo R. NogueiraI; Adriano L. PeracchiII; André PolI

IPrograma de Pós-graduação em Biologia Animal, Universidade Federal Rural do Rio de Janeiro. 23890-000 Seropédica, Rio de Janeiro, Brasil. E-mail: mrnogueira@rionet.com.br; andrepol@infolink.com.br

IIDepartamento de Biologia Animal, Instituto de Biologia, Universidade Federal Rural do Rio de Janeiro. 23890-000 Seropédica, Rio de Janeiro, Brasil. E-mail: aperacchi@webdigital.com.br

ABSTRACT

Saccopteryx leptura (Schreber, 1774) is reported from two new localities in southeastern Brazil, both in Atlantic forest remains in the state of Rio de Janeiro. Analysisof food material showed that individuals from both localities had preyedon insects in the order Hymenoptera. Cheek contents were available from one specimen, and in this case identification of the food item (flying ants) achieved generic level (Pheidole Westwood, 1841). Aspects in the social behavior observed in a colony suggest that the same traits documented in Central American populations (small colonies, monogamic mating system, and retention of young for up to a year in the parental unit) may also characterize this species in the southern most part of its range. In both external and craniodental selected measurements, specimens from Rio de Janeiro were close to the upper limits of the ranges known for the species.

Key words: Chiroptera, Emballonuridae, Saccopteryx leptura, morphometrics, feeding habits, social behavior, Rio de Janeiro, Southeastern Brazil

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ACKNOWLEDGMENTS. We are thankful to L.P. Gonzagaand J. Berninzoni for the donation of the specimens of

S. leptura

, AJ. Mayhé-Nunesfor the identification of the flying ants, and V.A. Taddei for the helpful comments on the manuscript. J. Berninzoni also reviewed our English. Financial support was provided by CNPq, through the grants 146829/991-9 (M.R. Nogueira) and 300265/80-8 (AL Peracchi), and by CAPES (A. Pol).

Received in 11.I.2002; accepted in 12.X.2002.

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Publication Dates

  • Publication in this collection
    11 May 2009
  • Date of issue
    Dec 2002

History

  • Received
    11 Jan 2002
  • Accepted
    12 Oct 2002
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