Drivers and spatial patterns of population synchrony of fish species in a floodplain

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dc.creatorGranzotti, Rafaela Vendrametto
dc.creatorAgostinho, Angelo Antonio
dc.creatorBini, Luis Mauricio
dc.date.accessioned2023-07-11T14:58:12Z
dc.date.available2023-07-11T14:58:12Z
dc.date.issued2022
dc.description.abstractSpatial synchrony is the correlation between the temporal dynamics of local populations. This pattern may be driven by spatially correlated environmental variation (i.e., Moran effect), dispersal and trophic interactions. Investigating geographic patterns of synchrony can help disentangle the relative importance of these drivers. Using fish abundance data from long-term ecological research (17 years) in the Upper Paraná River floodplain, we studied the relative roles of dispersal distance, density dependence differences, and environmental synchrony in determining spatial synchrony of the most common species in this floodplain. We also investigated the geography of spatial synchrony by estimating modularity and site-level contributions to synchrony and anti-synchrony networks. We found positive spatial synchrony for most species, but levels were relatively low. For most species, our explanatory matrices were poorly related to spatial synchrony. We detected modular structures in some species networks, which reflected complex spatial patterns in synchrony. We also detected sites with high importance to spatial synchrony patterns that could be managed to increase metapopulation stability. The variable levels of spatial synchrony for fish species in the Upper Paraná River floodplain implies the need to monitor several sites to understand their dynamics in this region. Also, some migratory species of high importance to regional fisheries, such as Prochilodus lineatus, may deserve special monitoring attention due to the increased regional extinction risk associated with their high levels of spatial synchrony. Finally, we speculate that hydrological manipulation from upstream reservoirs should consider the timing of water releases to avoid spatially correlated population declines.pt_BR
dc.identifier.citationGRANZOTTI, Rafaela Vendrametto; AGOSTINHO, Angelo Antonio; BINI, Luis Mauricio. Drivers and spatial patterns of population synchrony of fish species in a floodplain. Freshwater Biology, Hoboken, v. 67, n. 5, p. 857-872, 2022. DOI: 10.1111/fwb.13886. Disponível em: https://onlinelibrary.wiley.com/doi/10.1111/fwb.13886. Acesso em: 22 jun. 2023.pt_BR
dc.identifier.doi10.1111/fwb.13886
dc.identifier.issn0046-5070
dc.identifier.issne- 1365-2427
dc.identifier.urihttps://onlinelibrary.wiley.com/doi/10.1111/fwb.13886
dc.language.isoengpt_BR
dc.publisher.countryEstados unidospt_BR
dc.publisher.departmentInstituto de Ciências Biológicas - ICB (RMG)pt_BR
dc.rightsAcesso Restritopt_BR
dc.titleDrivers and spatial patterns of population synchrony of fish species in a floodplainpt_BR
dc.typeArtigopt_BR

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