Data/hora: 02/06/2024 08:12:48

Provedor de dados: | 104
País: | Brazil
Título: | Use of the space by the opossum Didelphis aurita Wied-Newied (Mammalia, Marsupialia) in a mixed forest fragment of southern Brazil
Autores: | Cáceres,Nilton Carlos.
Data: | 2003-06-01
Ano: | 2003
Palavras-chave: | Food availability; Habitat fragmentation; Home range; Individual interaction; Territorial behaviour.
Resumo: | Use of the space by the opossum Didelphis aurita Wied-Newied, 1826 (Mammalia, Marsupialia) in a mixed forest fragment of southern Brazil. The space use of the marsupial Didelphis aurita was studied in a forest fragment of southern Brazil from February 1995 to January 1996. The method used was the 'distribution utilization' in which each trap was set in 38 x 38 m quadrats. Captures of each marked individual in each point give information on its habitat use. Food availability was searched and compared to the habitat utilization and to the food consumption of opossums. Distribution patterns of captures (aggregated to random) and spatial overlap between individuals were searched. Results showed aggregated distributions of individuals, particularly females, in the fragment. Females used exclusively the fragment during the drier season. Opossums tend to not choose the sites with highest food availability to establish home ranges. Spatial overlap was usually low between forest resident and neighbouring resident females, but much lower during the breeding season (only forest resident females) in an apparently pattern of territoriality. Hence, core areas of females decreased in size during the breeding season. Males probably searched primarily for mates during the breeding season being less opportunistic than females in feeding habits, yet their space use did not correlate to food consumption.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000200023
Editor: | Sociedade Brasileira de Zoologia
Relação: | 10.1590/S0101-81752003000200023
Formato: | text/html
Fonte: | Revista Brasileira de Zoologia  v.20 n.2 2003
Fonte: | info:eu-repo/semantics/openAccess