Relação entre o tamanho do grupo e área de vida em um grupo de muriquis-do-norte (Brachyteles hypoxanthus)

• Autor(a) principal: Coli, Alba Zilocchi
• Data de Publicação: 2013
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/2285
• topic: Muriqui-do-norte; Brachyteles hypoxanthus; Brachyteles hypoxanthus - Populações; Primata; Muriqui-do-norte; Brachyteles hypoxanthus; Brachyteles hypoxanthus - Populations; primate; CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA

Data on the home range of a group of northern muriqui (Brachyteles hypoxanthus) were collected in the RPPN Feliciano Miguel Abdala, Caratinga, Minas Gerais, for two consecutive years (September 2008 to July 2009) and (August 2009 to July 2010), when the group was composed of 102-109 individuals, and compared with the home range of the same group between 1998/1999, when the group size was approximately 50% smaller. Despite the increase in the size of the group, our results showed that the group s home range during the present study period (2008/2009 = 304 ha; 2009/2010 = 293 ha) was similar to the 309 ha reported by Dias and Strier (2003) from 1998/1999. The stability in the home range size may be a consequence of the more intensified use of space and resources of the area, as implied by the median number of quadrats visited per month in our study, which was less than half that reported by Dias and Strier (2003). This finding of more intensive habitat use is consistent with the small core area we recorded during this study. However, because the home range used by animals can be influenced by several factors, we suggest that comparisons of activity patterns and plant phenology, between the same and different populations are necessary to fully understand how northern muriqui home ranges might change over time.