Gomes L. F. auteur aut IRD Vieira L. C. G. auteur aut IRD de Souza C. A. auteur aut IRD Bonnet Marie-Paule auteur aut IRD de Almeida A. N. auteur aut IRD text journalArticle eng text/pdf born digital access The hydrological regime exerts a strong control on environmental and biological variables in floodplains. To better understand this process, the present study evaluates the influence of environmental variables on zooplankton community structure, focusing on the hydrological variation of the flood pulse. For this purpose, we address the following questions: (i) What is the effect of hydrologic period on environmental characteristics and the structure of zooplankton community? (ii) Do environmental and biological similarities between sampling sites in a lacustrine ecosystem differ within flooding and flushing periods? (iii) How do zooplanktonic organisms respond to environmental gradients? To achieve this work, environmental and biological samples were collected in 20 sampling sites along the Lago 010077871 in March (flooding period) and September (flushing period) of 2013. While some zooplankton taxa showed relationship with some environmental variables, we estimate that the hydrological variation had a higher control over the taxonomic composition of Lago Grande do Curuai. Therefore, the strong flow that promotes connectivity between the habitats in the floodplain lake may also justify the similar pattern of heterogeneity between sampling sites for the zooplankton community in both periods, despite their environmental differences. specialized flood pulse seasonality hydrology Lago Grande do Curuai BRESIL AMAZONE BASSIN LAGO GRANDE DO CURUAI 036 062 39 1 35-48 2020 0213-8409 https://www.documentation.ird.fr/hor/fdi:010077871 10.23818/limn.39.03 0213-8409 [F B010077871] https://www.documentation.ird.fr/hor/fdi:010077871 https://www.documentation.ird.fr/intranet/publi/2020/02/010077871.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2020-03-11 2020-03-11 fdi:010077871 fre