caa a22 4500 605509417 CHVBK 20210128100641.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s10452-015-9514-7 doi (NATIONALLICENCE)springer-10.1007/s10452-015-9514-7 Zooplankton diversity in a dammed river basin is maintained by preserved tributaries in a tropical floodplain [Elektronische Daten] [Louizi Braghin, Bruno Figueiredo, Thamis Meurer, Thaisa Michelan, Nadson Simões, Claudia Bonecker] In this study, we tested the hypothesis that in floodplain lakes connected to a primary river with regulated flow, the zooplankton composition is maintained by the species found in lakes connected to preserved tributaries. Zooplankton were sampled from 23 lakes connected to the Paraná, Ivinhema and Baía Rivers on the floodplain of the Upper Paraná River. For this purpose, we evaluated zooplankton α, β and γ diversity and applied dispersal analysis to identify the dispersal of species among lakes. In addition, we investigated whether the Baía and Ivinhema Rivers could disperse species to the Paraná River Basin through an analysis of source environments. A total of 150 species were observed, and the greatest number of species (115 species) occurred in environments associated with the flow-regulated Paraná River. Dispersal of species among all lakes was identified. The highest α-diversity values were found in the environments connected to the tributaries, the Ivinhema and Baía Rivers, which also contributed withmore than 50% of the composition of the lakes associated with the Paraná River. There was also greater β-diversity in these environments, where the composition was significantly correlated with turbidity, chlorophyll-a and conductivity. The results supported our hypothesis and showed that when the main river is regulated by a dam, the tributaries take on the role of maintaining γ-diversity in the floodplain, favouring the maintenance of the natural characteristics of the system. We propose that preserving the integrity of natural floodplain environments assists in maintaining the regional diversity of the ecosystem as a whole. Springer Science+Business Media Dordrecht, 2015 Zooplankton nationallicence Species composition nationallicence α-Diversity nationallicence β-Diversity nationallicence Dispersal nationallicence Braghin Louizi Universidade Estadual de Maringá - Programa de Pós-graduação em Ecologia de Ambientes Aquáticos Continentais, Avenida Colombo, 5790, Bloco G-90, CEP 87020-900, Maringá, PR, Brazil aut Figueiredo Bruno Universidade Estadual de Maringá - Programa de Pós-graduação em Ecologia de Ambientes Aquáticos Continentais, Avenida Colombo, 5790, Bloco G-90, CEP 87020-900, Maringá, PR, Brazil aut Meurer Thamis Universidade Estadual de Maringá - Programa de Pós-graduação em Ecologia de Ambientes Aquáticos Continentais, Avenida Colombo, 5790, Bloco G-90, CEP 87020-900, Maringá, PR, Brazil aut Michelan Thaisa Universidade Estadual de Maringá - Programa de Pós-graduação em Ecologia de Ambientes Aquáticos Continentais, Avenida Colombo, 5790, Bloco G-90, CEP 87020-900, Maringá, PR, Brazil aut Simões Nadson Universidade Federal do Sul da Bahia- Centro de Ciências Ambientais, Rodovia BA001 Porto Seguro-Eunápolis, CEP 45810-000, Porto Seguro, BA, Brazil aut Bonecker Claudia Universidade Estadual de Maringá - Programa de Pós-graduação em Ecologia de Ambientes Aquáticos Continentais, Avenida Colombo, 5790, Bloco G-90, CEP 87020-900, Maringá, PR, Brazil aut Aquatic Ecology Springer Netherlands 49/2(2015-06-01), 175-187 1386-2588 49:2<175 2015 49 10452 https://doi.org/10.1007/s10452-015-9514-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10452-015-9514-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Braghin Louizi Universidade Estadual de Maringá - Programa de Pós-graduação em Ecologia de Ambientes Aquáticos Continentais, Avenida Colombo, 5790, Bloco G-90, CEP 87020-900, Maringá, PR, Brazil aut NATIONALLICENCE 700 1- Figueiredo Bruno Universidade Estadual de Maringá - Programa de Pós-graduação em Ecologia de Ambientes Aquáticos Continentais, Avenida Colombo, 5790, Bloco G-90, CEP 87020-900, Maringá, PR, Brazil aut NATIONALLICENCE 700 1- Meurer Thamis Universidade Estadual de Maringá - Programa de Pós-graduação em Ecologia de Ambientes Aquáticos Continentais, Avenida Colombo, 5790, Bloco G-90, CEP 87020-900, Maringá, PR, Brazil aut NATIONALLICENCE 700 1- Michelan Thaisa Universidade Estadual de Maringá - Programa de Pós-graduação em Ecologia de Ambientes Aquáticos Continentais, Avenida Colombo, 5790, Bloco G-90, CEP 87020-900, Maringá, PR, Brazil aut NATIONALLICENCE 700 1- Simões Nadson Universidade Federal do Sul da Bahia- Centro de Ciências Ambientais, Rodovia BA001 Porto Seguro-Eunápolis, CEP 45810-000, Porto Seguro, BA, Brazil aut NATIONALLICENCE 700 1- Bonecker Claudia Universidade Estadual de Maringá - Programa de Pós-graduação em Ecologia de Ambientes Aquáticos Continentais, Avenida Colombo, 5790, Bloco G-90, CEP 87020-900, Maringá, PR, Brazil aut NATIONALLICENCE 773 0- Aquatic Ecology Springer Netherlands 49/2(2015-06-01), 175-187 1386-2588 49:2<175 2015 49 10452