A comunidade zooplanctônica em lagoas de uma planície de inundação neotropical : estrutura e papel funcional.
A major advance for studies in community ecology is to unravel the role played by communities in ecosystem processes and the environmental mechanisms that rule these processes. Among ecosystem processes, highlights the zooplankton secondary production as an important metrics of the functional role o...
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Universidade Estadual de Maringá. Departamento de Biologia. Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais.
2012
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ftoceandocs:oai:aquadocs.org:1834/10002 2023-05-15T18:49:42+02:00 A comunidade zooplanctônica em lagoas de uma planície de inundação neotropical : estrutura e papel funcional. The zooplankton community in neotropical floodplain lakes : structure and functional role. Dias, Juliana Déo 2012 73pp. http://hdl.handle.net/1834/10002 pt por Universidade Estadual de Maringá. Departamento de Biologia. Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais. http://nou-rau.uem.br/nou-rau/document/?code=vtls000201451 http://repositorio.uem.br:8080/jspui/handle/1/4947 http://hdl.handle.net/1834/10002 Brazil Rotifers Microcrustaceans Flooplain Upper Paraná River Planície de inundação Microcrustáceos Brasil Alto rio Paraná Communities Secondary production Ecology Ecosystem process Flow of matter and energy Produtividade secundária Comunidades Ecologia de Fluxo de matéria e energia Produção secundária Zooplâncton Zooplâncton de água doce Rotíferos Processo ecossistêmico Zooplankton Thesis/Dissertation 2012 ftoceandocs 2023-04-06T16:58:05Z A major advance for studies in community ecology is to unravel the role played by communities in ecosystem processes and the environmental mechanisms that rule these processes. Among ecosystem processes, highlights the zooplankton secondary production as an important metrics of the functional role of these heterotrophic organisms in aquatic environments, once it converts data of density and heterotrophic biomass into a functional measure of the flow of matter and energy. Despite the relevance in estimating the contribution from zooplankton organisms to the ecosystem, are lacking studies on this topic. In the first approach we evaluated the secondary production of rotifer, cladoceran and copepods in two marginal lakes of the Upper Paraná River floodplain, in two hydrological periods. Results showed that zooplankton groups have played different roles in the flow of matter and energy in the floodplain, with dependence on the trophic dynamics and biological characteristics of the groups, besides the temporal and spatial variability of this complex ecosystem. Cyclopoid copepods support better the upper trophic levels given their higher secondary production, however rotifers ease a higher rate of nutrient turnover in the low water period, due to their high turnover. Furthermore, the transfer of matter and energy to upper levels is especially important in the low water period, when the groups? secondary production was greater. The goal of the second approach was to analyze the rotifer community structure and its functional role in marginal lakes of a neotropical floodplain. Results evidenced that environmental conditions in the low water period (higher daily variation) were important in the structure and ecosystem contribution of communities in the lakes. Therefore, it is noteworthy the spatial connectivity between environment in the floodplain, and not only the temporal connectivity, mediated by the flood pulse, as important factor in describing the community and for its functional role in the environment. In summary, ... Thesis Copepods Rotifer IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
institution |
Open Polar |
collection |
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
op_collection_id |
ftoceandocs |
language |
Portuguese |
topic |
Brazil Rotifers Microcrustaceans Flooplain Upper Paraná River Planície de inundação Microcrustáceos Brasil Alto rio Paraná Communities Secondary production Ecology Ecosystem process Flow of matter and energy Produtividade secundária Comunidades Ecologia de Fluxo de matéria e energia Produção secundária Zooplâncton Zooplâncton de água doce Rotíferos Processo ecossistêmico Zooplankton |
spellingShingle |
Brazil Rotifers Microcrustaceans Flooplain Upper Paraná River Planície de inundação Microcrustáceos Brasil Alto rio Paraná Communities Secondary production Ecology Ecosystem process Flow of matter and energy Produtividade secundária Comunidades Ecologia de Fluxo de matéria e energia Produção secundária Zooplâncton Zooplâncton de água doce Rotíferos Processo ecossistêmico Zooplankton Dias, Juliana Déo A comunidade zooplanctônica em lagoas de uma planície de inundação neotropical : estrutura e papel funcional. |
topic_facet |
Brazil Rotifers Microcrustaceans Flooplain Upper Paraná River Planície de inundação Microcrustáceos Brasil Alto rio Paraná Communities Secondary production Ecology Ecosystem process Flow of matter and energy Produtividade secundária Comunidades Ecologia de Fluxo de matéria e energia Produção secundária Zooplâncton Zooplâncton de água doce Rotíferos Processo ecossistêmico Zooplankton |
description |
A major advance for studies in community ecology is to unravel the role played by communities in ecosystem processes and the environmental mechanisms that rule these processes. Among ecosystem processes, highlights the zooplankton secondary production as an important metrics of the functional role of these heterotrophic organisms in aquatic environments, once it converts data of density and heterotrophic biomass into a functional measure of the flow of matter and energy. Despite the relevance in estimating the contribution from zooplankton organisms to the ecosystem, are lacking studies on this topic. In the first approach we evaluated the secondary production of rotifer, cladoceran and copepods in two marginal lakes of the Upper Paraná River floodplain, in two hydrological periods. Results showed that zooplankton groups have played different roles in the flow of matter and energy in the floodplain, with dependence on the trophic dynamics and biological characteristics of the groups, besides the temporal and spatial variability of this complex ecosystem. Cyclopoid copepods support better the upper trophic levels given their higher secondary production, however rotifers ease a higher rate of nutrient turnover in the low water period, due to their high turnover. Furthermore, the transfer of matter and energy to upper levels is especially important in the low water period, when the groups? secondary production was greater. The goal of the second approach was to analyze the rotifer community structure and its functional role in marginal lakes of a neotropical floodplain. Results evidenced that environmental conditions in the low water period (higher daily variation) were important in the structure and ecosystem contribution of communities in the lakes. Therefore, it is noteworthy the spatial connectivity between environment in the floodplain, and not only the temporal connectivity, mediated by the flood pulse, as important factor in describing the community and for its functional role in the environment. In summary, ... |
format |
Thesis |
author |
Dias, Juliana Déo |
author_facet |
Dias, Juliana Déo |
author_sort |
Dias, Juliana Déo |
title |
A comunidade zooplanctônica em lagoas de uma planície de inundação neotropical : estrutura e papel funcional. |
title_short |
A comunidade zooplanctônica em lagoas de uma planície de inundação neotropical : estrutura e papel funcional. |
title_full |
A comunidade zooplanctônica em lagoas de uma planície de inundação neotropical : estrutura e papel funcional. |
title_fullStr |
A comunidade zooplanctônica em lagoas de uma planície de inundação neotropical : estrutura e papel funcional. |
title_full_unstemmed |
A comunidade zooplanctônica em lagoas de uma planície de inundação neotropical : estrutura e papel funcional. |
title_sort |
comunidade zooplanctônica em lagoas de uma planície de inundação neotropical : estrutura e papel funcional. |
publisher |
Universidade Estadual de Maringá. Departamento de Biologia. Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais. |
publishDate |
2012 |
url |
http://hdl.handle.net/1834/10002 |
genre |
Copepods Rotifer |
genre_facet |
Copepods Rotifer |
op_relation |
http://nou-rau.uem.br/nou-rau/document/?code=vtls000201451 http://repositorio.uem.br:8080/jspui/handle/1/4947 http://hdl.handle.net/1834/10002 |
_version_ |
1766243308467650560 |