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Int. microbiol ; 18(2): 105-115, jun. 2015. ilus, tab
Artigo em Inglês | IBECS | ID: ibc-143388

RESUMO

The aim of this study was to determine the contributions of stochastic vs. deterministic processes in the distribution of microbial diversity in four ponds (Pozas Azules) within a temporally stable aquatic system in the Cuatro Cienegas Basin, State of Coahuila, Mexico. A sampling strategy for sites that were geographically delimited and had low environmental variation was applied to avoid obscuring distance effects. Aquatic bacterial diversity was characterized following a cultureindependent approach (16S sequencing of clone libraries). The results showed a correlation between bacterial beta diversity (1-Sorensen) and geographic distance (distance decay of similarity), which indicated the influence of stochastic processes related to dispersion in the assembly of the ponds’ bacterial communities. Our findings are the first to show the influence of dispersal limitation in the prokaryotic diversity distribution of Cuatro Cienegas Basin (AU)


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Assuntos
24959/métodos , Características Bacteriológicas da Água/métodos , Processos Estocásticos , Estruturas Bacterianas/imunologia , Técnicas de Tipagem Bacteriana/métodos , Biodiversidade , Biogeografia , 24965/métodos
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