Use este identificador para citar ou linkar para este item: http://repositorio.bc.ufg.br/handle/ri/11866
Tipo do documento: Artigo
Título: Correlates of zooplankton beta diversity in tropical lake systems
Autor: Lopes, Paloma Marinho
Bini, Luis Mauricio
Declerck, Steven A. J.
Farjalla, Vinicius Fortes
Vieira, Ludgero Cardoso Galli
Bonecker, Cláudia Costa
Toha, Fábio Amodeo Lansac
Abstract: The changes in species composition between habitat patches (beta diversity) are likely related to a number of factors, including environmental heterogeneity, connectivity, disturbance and productivity. Here, we used data from aquatic environments in five Brazilian regions over two years and two seasons (rainy and dry seasons or high and low water level periods in floodplain lakes) in each year to test hypotheses underlying zooplankton beta diversity variation. The regions present different levels of hydrological connectivity, where three regions present lakes that are permanent and connected with the main river, while the water bodies of the other two regions consist of permanent lakes and temporary ponds, with no hydrological connections between them. We tested for relationships between zooplankton beta diversity and environmental heterogeneity, spatial extent, hydrological connectivity, seasonality, disturbance and productivity. Negative relationships were detected between zooplankton beta diversity and both hydrological connectivity and disturbance (periodic dry-outs). Hydrological connectivity is likely to affect beta diversity by facilitating dispersal between habitats. In addition, the harsh environmental filter imposed by disturbance selected for only a small portion of the species from the regional pool that were able to cope with periodic dry-outs (e.g., those with a high production of resting eggs). In summary, this study suggests that faunal exchange and disturbance play important roles in structuring local zooplankton communities.
Palavras-chave: Zooplankton
Beta diversity
País: Estados unidos
Instituição: Public Library of Science
Unidade acadêmica: Instituto de Ciências Biológicas - ICB (RG)
Citação: LOPES, Paloma M.; BINI, Luis M.; DECLERCK, Steven A. J.; FARJALLA, Vinicius F.; VIEIRA, Ludgero C. G.; BONECKER, Claudia C.; TOHA, Fabio A. Lansac; ESTEVES, Francisco A.; BOZELLI, Reinaldo L. Correlates of zooplankton beta diversity in tropical lake systems. Plos One, San Francisco, v. 9, n. 10, p. e109581, Oct. 2014.
Tipo de acesso: Acesso Aberto
Identificador do documento: 10.1371/journal.pone.0109581
Identificador do documento: 10.1371/journal.pone.0109581
URI: http://repositorio.bc.ufg.br/handle/ri/11866
Data de publicação: Out-2014
Aparece nas coleções:ICB - Artigos publicados em periódicos

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