Ecologia e estrutura social do veado-campeiro (Ozotoceros bezoarticus) no Pantanal

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

The pampas deer, Ozotoceros bezoarticus L 1758 is a medium sized cervid, whose original range comprised all natural grasslands of eastern South America between 5 and 40 S. This wide range has been severely reduced by habitat loss and fragmentation, hunting, and competition with cattle. Most information about this species concentrates on population status across its range, and very little information is available about its ecology and social structure. The aim of this work is to obtain data on the home range, habitat use, diet, reproductive biology and structure social from data collected from a population of pampas deer, in the Pantanal, MS. There was no significant difference between home range size and habitat use between the sexes. The open natural grassland and permanent ponds were the most used habitat by pampas deer, where forest was avoided. The pampas deer in the Pantanal present a behavior characteristic of browsers, and was no difference in the use of food items between the sexes. There is a well defined birth season which appears to be regulated by hydro-period, with peak births occurred in dry season. The pampas deer lives in fission-fusion a society that is predominantly composed of short-term acquaintances lasting a few hours to a few days and few constants companions. The species showed social segregation, but no ecological segregation around the birth season, when males lives in groups composed only by males, and females lives apart from co-specifics of both sexes. The pattern of social segregation of groups of males and the postpartum isolation behavior of females imply that social factors play important roles in social segregation and group formation.

ASSUNTO(S)

ozotoceros bezoarticus biologia geral

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