Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 2
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Patch Size and Population Density: the Effect of Immigration Behavior Ecology and Society
Bowman, Jeff; Ontario Ministry of Natural Resources; jeff.bowman@mnr.gov.on.ca; Cappuccino, Naomi; Carleton University; ncappucc@ccs.carleton.ca; Fahrig, Lenore; Carleton University; lfahrig@ccs.carleton.ca.
Many habitat fragmentation experiments make the prediction that animal population density will be positively related to fragment, or patch, size. The mechanism that is supposed to result in this prediction is unclear, but several recent reviews have demonstrated that population density often is negatively related to patch size. Immigration behavior is likely to have an important effect on population density for species that do not show strong edge effects, for species that have low emigration rates, and during short-term habitat fragmentation experiments. We consider the effect that different kinds of immigration behaviors will have on population density and we demonstrate that only a minority of possible scenarios produce positive density vs. patch size...
Tipo: Peer-Reviewed Reports Palavras-chave: Colonization; Connectivity; Dispersal; Edge; Emigration; Experiment; Fragmentation; Immigration; Individuals-area relationships; Insular; Island biogeography; Landscape.
Ano: 2002
Imagem não selecionada

Imprime registro no formato completo
Problématique de suivi de la pêche insulaire ArchiMer
Reynal, Lionel; Maguer, Cedric; Taquet, Marc.
Insular fisheries statistics are often insufficient to allow a good management of halieutics resources. The reasons of this insufficiency, in large part, is due to inadequate methods for recording catch data and analyzing fishing effort. This presentation proposes the use of a software pro gram (<< S.P.1. ») which helps to elaborate statistics from sampling, making easier the work of personnel who are charged with producing encoded informations on insular fisheries
Tipo: Text Palavras-chave: Statistiques; Pêche; Insulaire; Statistics; Fisheries; Insular.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/00113/22410/20107.pdf
Registros recuperados: 2
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional