Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Anais da ABC (AABC) (2) Autor BORGES,SÉRGIO H. (1) Dias,Manoel M. (1) Loures-Ribeiro,Alan (1) Manhães,Marco A. (1) SANTOS,MARCOS P.D. (1) SILVA,ANTONITA S. DA (1) SOARES,LEONARDO M.S. (1) Mais... Palavra-chave Neotropical birds (2) Amazonian habitats (1) Degradation (1) Insular habitats (1) Iron mines (1) Point counts (1) Rock outcrops (1) South America (1) Tropical forest (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2017 (1) 2011 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Sensitivity of understorey bird species in two different successional stages of the lowland Atlantic Forest, Brazil Anais da ABC (AABC) Loures-Ribeiro,Alan; Manhães,Marco A.; Dias,Manoel M.. The Atlantic Forest has a high destruction rate and there is little information available on some aspects of the neotropical bird biology. Changes in environment are important factors that affect the resources available to birds. We compared the species sensitivity level of understorey birds in two areas in distinct successional stages (primary and secondary sections). Two 100 ha plots of lowland Atlantic Forest were analysed between August and December 2006. Among 25 bird species recorded, thirteen had lower abundance in secondary forest, two in primary forest, and ten had not clear tendency. According to the criteria used, the percentages for species with low, and medium and high sensitivity to habitat change were 44% and 56%, respectively. The number of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Degradation; Neotropical birds; Point counts; South America; Tropical forest. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000300016 Avian Communities in the Amazonian Cangas Vegetation: Biogeographic Affinities, Components of Beta-Diversity and Conservation Anais da ABC (AABC) BORGES,SÉRGIO H.; SANTOS,MARCOS P.D.; SOARES,LEONARDO M.S.; SILVA,ANTONITA S. DA. ABSTRACT The Amazonian cangas is a vegetation type distributed as patches of open vegetation embedded in a matrix of tropical forest and that grows over iron-rich soils in the Serra dos Carajás region. To characterize cangas avifauna, we surveyed birds in eight patches varying from 43 to 1,366 hectares. Cangas avifauna has compositional affinities with savannas widespread throughout the Amazon and other biomes, and we estimate that more than 200 bird species occurs in this habitat. Species composition was relatively homogeneous, and the similarity among cangas patches was the dominant component of the beta-diversity. Bird communities in cangas patches exhibited statistically significant nested structure in respect to species richness and patch size. In... Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazonian habitats; Insular habitats; Iron mines; Neotropical birds; Rock outcrops. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000502167 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