Por favor, use este identificador para citar o enlazar este ítem: https://hdl.handle.net/20.500.12955/1469
Título : Environmental filters and biotic interactions drive species richness and composition in ecotone forests of the northern Brazilian Amazonia
Otros títulos : Filtros ambientais e interações bióticas conduzem a riqueza e composição de espécies em florestas de ecótono do norte da Amazônia brasileira
Autor : Rodrigues Silva, Williamar
Costa Lima Pequeno, Pedro Aurélio
Sousa Farias, Hugo Leonardo
Ferreira Melo, Valdinar
Angulo Villacorta, Carlos Darwin
Silva Carvalho, Lidiany Camila
Oliveira Perdiz, Ricardo
Camurça Citó, Arthur
Imbrozio Barbosa, Reinaldo
Fecha de publicación : 7-sep-2021
Resumen : The structure of tree communities in tropical forests depends on environmental filters and biotic interactions such as competition and facilitation. Many ecotone forests in Northern Amazonia are intriguingly populated by tree assemblages characterized by distinct abundances of a single species, Peltogyne gracilipes (Leguminosae). It is unclear whether this pattern solely reflects environmental filters or also antagonistic interactions among species with similar habitat requirements. The aim of this study was to determine the response of species richness and composition to environmental filters, and analyze the role of P. gracilipes in structuring tree communities in ecotone forest areas of the Northern Brazilian Amazonia. We sampled 129 permanent plots along a hydro-edaphi gradient. All arboreal individuals with stem diameter ≥10 cm were measured and identified. Multiple regressions were performed to test the effects of environmental filters, and abundance of P. gracilipes on the tree species richness and composition. Species richness and composition responded to the same filters which, in turn, affected species composition directly and indirectly, through the abundance of P. gracilipes. Our results indicate that both abiotic filters and biotic interactions shape the studied tree communities. P. gracilipes can be considered an indicator species of hydro-edaphic conditions, but also is itself a driver of tree community structure.
Palabras clave : Community structure
Maracá Island
Roraimma
Seasonal forest
Tree species
Editorial : Museu Paraense Emílio Goeldi
Citación : Silva, W. R., Pequeno, P. A. C. L., Farias, H. L. S., Melo, V. F., Villacorta, C. D. A., Carvalho, L. C. S., Perdiz, R. O., Citó, A. C., & Barbosa, R. I. (2021). Environmental filters and biotic interactions drive species richness and composition in ecotone forests of the northern Brazilian Amazonia. Boletim do Museu Paraense Emílio Goeldi. Ciências Naturais, 16(2), 229-244. http://doi.org/10.46357/bcnaturais.v16i2.434.
Descripción : 16 páginas
URI : https://hdl.handle.net/20.500.12955/1469
metadata.dc.identifier.doi: 10.46357/bcnaturais.v16i2.434.
Aparece en las colecciones: Artículos científicos



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