Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Registro completo
Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Spatial distribution of a population of Pentaclethra macroloba (Willd.) Kuntze in a floodplain forest of the Amazon Estuary.
Autores:  DANTAS, A. R.
MARANGON, L. C.
GUEDES, M. C.
FELICIANO, A. L. P.
LIRA-GUEDES, A. C.
Data:  2018-05-08
Ano:  2017
Palavras-chave:  Dispersal
Árvore Florestal
Pracaxi
Dispersão
Forest trees
Resumo:  We analyzed the spatial distribution pattern of Pentaclethra macroloba to assist in the development of management plans and conservation of this species in estuarine floodplain forests. The study was conducted in an area of floodplain forest of 55.94 ha, in Mazagão, Amapá, Brazil. A census was performed and all individuals of ? 30 cm circumference at breast height (CBH), living and dead, were georeferenced. Ripley's K function was used to analyze the spatial distribution of the population, including mortality and diameter classes. The relationships between distance to the edge of inundation and density and basal area of the population were analyzed using linear regression. We recorded 993 live individuals and 22 dead. The distribution of the population was found to vary with the topographic gradient associated with the distance to the edge of the inundation. Diameter classes 1 (? 13.2 cm) and 2 (? 18.6 cm) were spatially aggregated close to the water and randomly distributed far from the water. Classes 3 (? 24.0 cm) and 4 (? 29.5 cm) were aggregated at all distances, and classes 5 (? 34.9 cm), 6 (? 40.3 cm), 7 (? 45.7 cm) and 8 (? 51.2 cm), were randomly distributed at all distances. Mortality was randomly distributed. The population density was 18 trees h-1 with a basal area of 49 m2 h-1, and both density (r2=0.51; p=0.0195) and basal area (r2=0.67; p=0.0039) increased with the distance from the edge of the inundation. We conclude that the spatial distribution and successful establishment of this species in floodplain forest are related to the dynamics of flooding and the resultant impacts on dispersal processes.

bitstream/item/176452/1/CPAF-AP-2018-Spatial-distribution-of-a-population-Pentaclethra.pdf
Tipo:  Artigo em periódico indexado (ALICE)
Idioma:  Inglês
Identificador:  17964

http://www.alice.cnptia.embrapa.br/alice/handle/doc/1091214

http://dx .doi.org/10.1590/1806-90882017000400006
Editor:  Revista Árvore, v. 41, n. 4, 2017.
Relação:  Embrapa Amapá - Artigo em periódico indexado (ALICE)
Fechar
 

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