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Characterization and predictors of the zooplankton community in the Veredas wetlands in Brazilian savanna

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Abstract

Vereda is a wetland ecosystem typical of the Cerrado biome characterized by diverse vegetation with dynamic and transitional areas of riparian forests, gallery forests, flooded forests, and humid grassland. In general, they are associated with controlling the flow of the water table, carbon storage, and high biodiversity and are essential to the maintenance of most rivers in the Cerrado biome. Besides that, Vereda is poorly studied, especially zooplanktonic groups. To lessen this knowledge gap, we evaluated the effects of seasonality and environmental predictors on the zooplanktonic community of Vereda. For that, we sampled zooplanktonic assemblages in the Veredas in the dry and wet seasons. We found environmental influence but not for the zooplankton community. The characteristic low conductivity seems to be an important environmental filter for zooplankton species occurrence in these systems, since the Veredas that registered major levels of richness and density were those with high electrical conductivity. Highlighting that some zooplankton species with a more restricted distribution were detected in this study: Acroperus tupinamba, which occurs in Brazil and Ecuador; Monospilus sp., for which only two species of this genus were registered in Brazil, both with restricted distribution, found thus far in only two protected areas of the Cerrado biome.

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The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.

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Acknowledgements

We are grateful to the UNEMAT Graduate Program in Ecology and Conservation (UNEMAT/PPGEC) and Fundação de Amparo à Pesquisa do Estado de Mato Grosso (FAPEMAT; “Projeto Veredas” 227925/2015) for financial support. We are also grateful to colleagues at the Laboratório de Ecologia e Conservação de Ecossistemas Aquáticos (LECEA/UFMT) for help in the field. We would like to thank all the landowners for permission to collect samples on their properties. R. G Strutz, L. B. Lima, and F. J. M. Oliveira were partially financed by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) Finance Code – 001; L. B. Lima was supported by Fundação de Amparo à Pesquisa do Estado de Mato Grosso (FAPEMAT/CNPq Notice 001/2022, Process FAPEMAT-PRO.000073/2023),V.G. Lopes was supported by Fundação de Amparo à Pesquisa do Estado de Mato Grosso (FAPEMAT; Edital DCR 003/2016, FAPEMAT.0582219/2017), and D. P. Lima-Junior was supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) (Grants: 305923/2020-0). We also thank Sueide Vilela and Fernando Borges Vieira for assistance during collections.

Funding

R.G.S., L.B.L., F.J.M.O., and C.C., were partially financed by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) Finance Code – 001; L.B.L was supported by Fundação de Amparo à Pesquisa do Estado de Mato Grosso (FAPEMAT/CNPq Notice 001/2022, Process FAPEMAT-PRO.000073/2023); V.G.L., was supported by Fundação de Amparo à Pesquisa do Estado de Mato Grosso (FAPEMAT; Edital DCR 003/2016, FAPEMAT.0582219/2017); C.C., L.B.L., and D.P.L.J. were partially funded by Agência Nacional de Águas e Saneamento Básico – ANA (88881.178666/2018-01), and D.P.L.J. was supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, 305923/2020-0).

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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by RGS, VGL, LBL, FJO, CC and DPL-J. The first draft of the manuscript was written by RGS and VGL and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Dilermando Pereira Lima-Junior.

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Lopes, V.G., Strutz, R.G., Lima, L.B. et al. Characterization and predictors of the zooplankton community in the Veredas wetlands in Brazilian savanna. Wetlands Ecol Manage 31, 733–743 (2023). https://doi.org/10.1007/s11273-023-09944-1

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