Use este identificador para citar ou linkar para este item: http://repositorio.bc.ufg.br/handle/ri/11862
Tipo do documento: Artigo
Título: Nutrient enrichment is related to two facets of beta diversity for stream invertebrates across the United States
Autor: Bini, Luis Mauricio
Landeiro, Victor Lemes
Padial, André Andrian
Siqueira, Tadeu
Heino, Jani
Abstract: Beta diversity, the spatial or temporal variability of species composition, is a key concept in community ecology. However, our ability to predict the relative importance of the main drivers of beta diversity (e.g., environmental heterogeneity, dispersal limitation, and environmental productivity) remains limited. Using a comprehensive data set on stream invertebrate assemblages across the continental United States, we found a hump-shaped relationship between beta diversity and within-ecoregion nutrient concentrations. Withinecoregion compositional dissimilarity matrices were mainly related to environmental distances in most of the 30 ecoregions analyzed, suggesting a stronger role for species-sorting than for spatial processes. The strength of these relationships varied considerably among ecoregions, but they were unrelated to within-ecoregion environmental heterogeneity or spatial extent. Instead, we detected a negative correlation between the strength of species sorting and nutrient concentrations. We suggest that eutrophication is a major mechanism disassembling invertebrate assemblages in streams at a continental scale.
Palavras-chave: Assemblage structure
Beta diversity
Continental United States
Ecoregions
Environmental heterogeneity
Eutrophication
Metacommunity
Nutrient concentration
Spatial extent
Species sorting
Stream invertebrate
Wadeable Streams Assessment
País: Estados unidos
Instituição: Ecological Society of America
Unidade acadêmica: Instituto de Ciências Biológicas - ICB (RG)
Citação: BINI, Luis Mauricio; LANDEIRO, Victor Lemes; PADIAL, André Andrian; SIQUEIRA, Tadeu; HEINO, Jani. Nutrient enrichment is related to two facets of beta diversity for stream invertebrates across the United States. Ecology, Washington, v. 95, n. 6, p. 1569-1578, June 2014.
Tipo de acesso: Acesso Aberto
Identificador do documento: 10.1890/13-0656.1
Identificador do documento: 10.1890/13-0656.1
URI: http://repositorio.bc.ufg.br/handle/ri/11862
Data de publicação: Jun-2014
Aparece nas coleções:ICB - Artigos publicados em periódicos

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