Data/hora: 10/06/2024 18:11:02

Provedor de dados: | 104
País: | Brazil
Título: | Nine-year demography of the black-eared opossum Didelphis aurita (Didelphimorphia: Didelphidae) using life tables
Autores: | Kajin,Maja; Cerqueira,Rui; Vieira,Marcus V.; Gentile,Rosana.
Data: | 2008-06-01
Ano: | 2008
Palavras-chave: | Atlantic forest; Cohort; Intrinsic factors; Small mammals; Survival.
Resumo: | A population of the black-eared opossum, Didelphis aurita Wied-Neuwied 1826, was studied during 1997-2006 by capture-mark-recapture in the Atlantic Forest in the state of Rio de Janeiro. Cohorts were established with females marked still in the pouch, classified into five age classes. Population parameters were estimated using life tables. Survival was type III and mortality was greatest in age classes I and II, just after weaning. Fecundity was inversely correlated with survival, reproductive value was inversely correlated with mortality and residual reproductive value was inversely correlated with fecundity. The intrinsic rate of increase was always close to zero and tended to be slightly negative. The black-eared opossum can be considered a good model species for this type of study.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000200007
Editor: | Sociedade Brasileira de Zoologia
Relação: | 10.1590/S0101-81752008000200007
Formato: | text/html
Fonte: | Revista Brasileira de Zoologia  v.25 n.2 2008
Fonte: | info:eu-repo/semantics/openAccess