Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Acta Amazonica (1) Scientia Agricola (1) Autor Bruna,Emilio M. (1) Kress,W. John (1) Marques,Francisco (1) Rodrigues,Ricardo Ribeiro (1) Silva,Osmaildo Ferreira da (1) Viani,Ricardo Augusto Gorne (1) Mais... Palavra-chave Transplants (2) Ecological restoration (1) Forest nurseries (1) Natural regeneration (1) Phaethornis (1) Pollinator limitation (1) Resource limitation (1) Seedling production (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2009 (1) 2004 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Heliconia acuminata reproductive success is independent of local floral density Acta Amazonica Bruna,Emilio M.; Kress,W. John; Marques,Francisco; Silva,Osmaildo Ferreira da. Reproductive plants in tropical forests are patchily distributed, with some in large aggregations of reproductive consepecifics while others are relatively isolated. This variation in floral density is hypothesized to have a major effect on plant reproductive success, since individuals in higher density neighborhoods can attract more or higher quality pollinators. We experimentally tested this hypothesis with populations of the understory herb Heliconia acuminata in central Amazonia. We created replicated plots in which reproductive plant density spanned the range of naturally occurring floral neighborhood size, then measured three surrogates of plant fitness in focal plants in each array. There was no significant difference between any of the three floral... Tipo: Info:eu-repo/semantics/article Palavras-chave: Phaethornis; Resource limitation; Pollinator limitation; Transplants. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672004000300012 Potential of the seedling community of a forest fragment for tropical forest restoration Scientia Agricola Viani,Ricardo Augusto Gorne; Rodrigues,Ricardo Ribeiro. Forest restoration projects are usually planted with a reduced number of species as compared to standing forests, largely due to the low availability of native species in seedling nurseries. In the present study, the potential of the native seedling community as a source of seedlings for forest restoration is analyzed. To do so, the seedling community from a forest fragment located in the southeast of Brazil was evaluated. Individuals (tree and shrub species) up to 30 cm height were measured and identified in 20 4 × 4 m plots. Altogether, 6,136 individuals (17 individuals m-2) belonging to 119 species were sampled. The seedling community showed a spatial heterogeneity with respect to the density of individuals and composition of species, and also a spatial... Tipo: Info:eu-repo/semantics/article Palavras-chave: Ecological restoration; Natural regeneration; Transplants; Seedling production; Forest nurseries. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000600008 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