Data/hora: 10/06/2024 06:51:00

Provedor de dados: | 81
País: | Argentina
Título: | Dinâmica populacional de marsupiais e roedores no Parque Municipal da Lagoa do Peri, Ilha de Santa Catarina, sul do Brasil
Autores: | Graipel,Maurício E.; Cherem,Jorge J.; Monteiro-Filho,Emygdio L. A.; Glock,Luiz.
Data: | 2006-06-01
Ano: | 2006
Palavras-chave: | Atlantic Forest; Biology; Ecology; Reproduction; Small mammals.
Resumo: | A two-year mark-recapture study of small mammals was conducted in an area of Atlantic Forest hillside in the state of Santa Catarina, Brazil. Four species of marsupial and seven species of rodent were captured during 12 132 trap-nights. Aspects of population dynamics and natural history are discussed for each common species. The sex ratio was biased toward males for all species. Oryzomys russatus, Didelphis aurita and Akodon montensis had the highest population densities, the least amount of variation in population density and an inverse relationship between survivorship rates and population densities. Micoureus paraguayanus, Nectomys squamipes and O. angouya, registered the higher population densities after continual survivorship rates. The recruitment rates were low for most species (&lt; 50%), with some, M. paraguayanus, Lutreolina crassicaudata, Oligoryzomys nigripes, O. angouya and Oxymycterus aff. judex, disappearing occasionally from the study area. The survivorship rates were high for most species (&amp;gt; 50%). Population densities of D. aurita, O. nigripes and O. aff. judex increased in cold and dry periods. The marsupials reproduced seasonally from late winter until the end of the summer, whereas rodents reproduced throughout the year. No species were long-lived, with average life-span &lt; six months.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português
Identificador: | http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832006000100004
Editor: | Sociedad Argentina para el Estudio de los Mamíferos (SAREM)
Formato: | text/html
Fonte: | Mastozoología neotropical  v.13 n.1 2006
Fonte: | info:eu-repo/semantics/openAccess