Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Rev. Bras. Zool. (1) Acta Amazonica (1) Ecology and Society (1) Autor ARCE,Alejandro (1) Alvarez,Ariane D. (1) Alves,Kaiser (1) BENAVIDES,Camila (1) Bovendorp,Ricardo S. (1) Fadini,Rodrigo F. (1) Galetti,Mauro (1) Guimarães Jr,Paulo R. (1) Gussoni,Carlos O. A. (1) Hammond, Philip S.; University of St. Andrews; psh2@st-andrews.ac.uk (1) Hedley, Sharon L.; University of St. Andrews; slc@st-andrews.ac.uk (1) PACHECO,Luis F. (1) Rodrigues,Marcos (1) Williams, Rob; Sea Mammal Research Unit; rmcw@st-andrews.ac.uk (1) Mais... Palavra-chave Line transect (3) Abundance (1) Antarctic (1) Baleen whale (1) Callithrix (1) Cetacean (1) DISTANCE sampling (1) Didelphis marsupialis (1) Distance sampling (1) Distribution (1) Exotic species (1) Mesopredator release (1) Null models (1) Platform of opportunity (1) Spatial model (1) Tropical agroecosystems (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Peer-Reviewed Reports (1) Ano 2020 (1) 2009 (1) 2006 (1) País Brazil (2) Canada (1) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Common opossum population density in an agroforestry system in Bolivia Acta Amazonica BENAVIDES,Camila; ARCE,Alejandro; PACHECO,Luis F.. ABSTRACT The common opossum, Didelphis marsupialis thrives near human settlements. Understanding its ecology could help planning management decisions about this species, especially in anthropogenic landscapes. Yet, there are no density estimations for this species throughout its distribution range in Bolivia. We estimated the density of D. marsupialis in a rural agricultural community, where agroforestry plantations and fallows cover most of the land. We counted individuals in line transects and used DISTANCE software to calculate density. We covered a total of 70.21 km in 143 night counts, obtaining 38 records of D. marsupialis. We estimated a density of 0.30 individuals ha-1 (SE = 0.062; range: 0.20 - 0.45 individuals ha-1), with a mean encounter rate of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Didelphis marsupialis; Tropical agroecosystems; Line transect; DISTANCE sampling. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300246 Modeling Distribution and Abundance of Antarctic Baleen Whales Using Ships of Opportunity Ecology and Society Williams, Rob; Sea Mammal Research Unit; rmcw@st-andrews.ac.uk; Hedley, Sharon L.; University of St. Andrews; slc@st-andrews.ac.uk; Hammond, Philip S.; University of St. Andrews; psh2@st-andrews.ac.uk. Information on animal abundance and distribution is at the cornerstone of many wildlife and conservation strategies. However, these data can be difficult and costly to obtain for cetacean species. The expense of sufficient ship time to conduct design-unbiased line transect surveys may be simply out of reach for researchers in many countries, which nonetheless grapple with problems of conservation of endangered species, by-catch of small cetaceans in commercial fisheries, and progression toward ecosystem-based fisheries management. Recently developed spatial modeling techniques show promise for estimating wildlife abundance using non-randomized surveys, but have yet to receive much field-testing in areas where designed surveys have also been conducted.... Tipo: Peer-Reviewed Reports Palavras-chave: Abundance; Antarctic; Baleen whale; Cetacean; Distance sampling; Distribution; Line transect; Platform of opportunity; Spatial model. Ano: 2006 Hyper abundant mesopredators and bird extinction in an Atlantic forest island Rev. Bras. Zool. Galetti,Mauro; Bovendorp,Ricardo S.; Fadini,Rodrigo F.; Gussoni,Carlos O. A.; Rodrigues,Marcos; Alvarez,Ariane D.; Guimarães Jr,Paulo R.; Alves,Kaiser. Islands can serve as model systems for understanding how biological invasions affect native species. Here we examine the negative effects of mesopredator mammals on bird richness at Anchieta Island, an 826 ha offshore island in the coast of Brazil. Anchieta Island has the highest density of mammals of the entire Atlantic forest, especially nest predators such as marmosets and coatis, introduced more than 20 years ago. This indiscriminate introduction of mammals may have affected directly the bird community, nowadays represented by 100 species comprised mainly by water-crossing birds, being 73 forest-dwelling species. A small component of these remnant bird species nests in tree holes and on the forest floor, null model analysis suggest that birds within... Tipo: Info:eu-repo/semantics/article Palavras-chave: Callithrix; Exotic species; Line transect; Mesopredator release; Null models. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000200011 Registros recuperados: 3 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