Colonization and Succession of Zooplankton After a Drought: Influence of Hydrology and Free-Floating Plant Dynamics in a Floodplain Lake
We analyzed zooplankton colonization and succession following a temporary drought in a vegetated lake from a floodplain wetland of the Lower Paraná River (Argentina). We took samples of zooplankton and phytoplankton at four habitats of the lake characterized by the presence-absence of emergent or fr...
Guardado en:
Autores principales: | , |
---|---|
Publicado: |
2016
|
Materias: | |
Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02775212_v36_n1_p85_Chaparro http://hdl.handle.net/20.500.12110/paper_02775212_v36_n1_p85_Chaparro |
Aporte de: |
id |
paper:paper_02775212_v36_n1_p85_Chaparro |
---|---|
record_format |
dspace |
spelling |
paper:paper_02775212_v36_n1_p85_Chaparro2023-06-08T15:26:03Z Colonization and Succession of Zooplankton After a Drought: Influence of Hydrology and Free-Floating Plant Dynamics in a Floodplain Lake Chaparro, Griselda Noemi Fontanarrosa, Maria Soledad Community composition Disturbance Habitat heterogeneity Littoral and pelagic species aquatic plant colonization community composition drought stress environmental disturbance floodplain lake ecosystem phytoplankton population dynamics succession water level zooplankton Parana River We analyzed zooplankton colonization and succession following a temporary drought in a vegetated lake from a floodplain wetland of the Lower Paraná River (Argentina). We took samples of zooplankton and phytoplankton at four habitats of the lake characterized by the presence-absence of emergent or free-floating macrophytes along a 18-month period after the drought. Microzooplankton dominated along the study and macrozooplankton showed seasonal increments in cold seasons. Temporal patterns of broad taxonomic zooplankton groups were associated to hydrology-driven factors, like changes in water depth, conductivity and edible phytoplankton and seasonal changes and not related with free-floating plants. Nevertheless, spatial and temporal patterns of species composition were closely linked to the dynamics of free-floating plants. A clear shift from pelagic to littoral zooplankton taxa was registered when free-floating plants colonized. This study expands the knowledge on the composition and dynamics of zooplankton from floodplain lakes after the disturbance caused by a severe drought. Our results highlight the influence of water level fluctuations as drivers of zooplankton abundance and the joint effect of seasonal changes and free-floating plant dynamics on zooplankton species composition and richness. © 2015, Society of Wetland Scientists. Fil:Chaparro, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Fontanarrosa, M.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02775212_v36_n1_p85_Chaparro http://hdl.handle.net/20.500.12110/paper_02775212_v36_n1_p85_Chaparro |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Community composition Disturbance Habitat heterogeneity Littoral and pelagic species aquatic plant colonization community composition drought stress environmental disturbance floodplain lake ecosystem phytoplankton population dynamics succession water level zooplankton Parana River |
spellingShingle |
Community composition Disturbance Habitat heterogeneity Littoral and pelagic species aquatic plant colonization community composition drought stress environmental disturbance floodplain lake ecosystem phytoplankton population dynamics succession water level zooplankton Parana River Chaparro, Griselda Noemi Fontanarrosa, Maria Soledad Colonization and Succession of Zooplankton After a Drought: Influence of Hydrology and Free-Floating Plant Dynamics in a Floodplain Lake |
topic_facet |
Community composition Disturbance Habitat heterogeneity Littoral and pelagic species aquatic plant colonization community composition drought stress environmental disturbance floodplain lake ecosystem phytoplankton population dynamics succession water level zooplankton Parana River |
description |
We analyzed zooplankton colonization and succession following a temporary drought in a vegetated lake from a floodplain wetland of the Lower Paraná River (Argentina). We took samples of zooplankton and phytoplankton at four habitats of the lake characterized by the presence-absence of emergent or free-floating macrophytes along a 18-month period after the drought. Microzooplankton dominated along the study and macrozooplankton showed seasonal increments in cold seasons. Temporal patterns of broad taxonomic zooplankton groups were associated to hydrology-driven factors, like changes in water depth, conductivity and edible phytoplankton and seasonal changes and not related with free-floating plants. Nevertheless, spatial and temporal patterns of species composition were closely linked to the dynamics of free-floating plants. A clear shift from pelagic to littoral zooplankton taxa was registered when free-floating plants colonized. This study expands the knowledge on the composition and dynamics of zooplankton from floodplain lakes after the disturbance caused by a severe drought. Our results highlight the influence of water level fluctuations as drivers of zooplankton abundance and the joint effect of seasonal changes and free-floating plant dynamics on zooplankton species composition and richness. © 2015, Society of Wetland Scientists. |
author |
Chaparro, Griselda Noemi Fontanarrosa, Maria Soledad |
author_facet |
Chaparro, Griselda Noemi Fontanarrosa, Maria Soledad |
author_sort |
Chaparro, Griselda Noemi |
title |
Colonization and Succession of Zooplankton After a Drought: Influence of Hydrology and Free-Floating Plant Dynamics in a Floodplain Lake |
title_short |
Colonization and Succession of Zooplankton After a Drought: Influence of Hydrology and Free-Floating Plant Dynamics in a Floodplain Lake |
title_full |
Colonization and Succession of Zooplankton After a Drought: Influence of Hydrology and Free-Floating Plant Dynamics in a Floodplain Lake |
title_fullStr |
Colonization and Succession of Zooplankton After a Drought: Influence of Hydrology and Free-Floating Plant Dynamics in a Floodplain Lake |
title_full_unstemmed |
Colonization and Succession of Zooplankton After a Drought: Influence of Hydrology and Free-Floating Plant Dynamics in a Floodplain Lake |
title_sort |
colonization and succession of zooplankton after a drought: influence of hydrology and free-floating plant dynamics in a floodplain lake |
publishDate |
2016 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02775212_v36_n1_p85_Chaparro http://hdl.handle.net/20.500.12110/paper_02775212_v36_n1_p85_Chaparro |
work_keys_str_mv |
AT chaparrogriseldanoemi colonizationandsuccessionofzooplanktonafteradroughtinfluenceofhydrologyandfreefloatingplantdynamicsinafloodplainlake AT fontanarrosamariasoledad colonizationandsuccessionofzooplanktonafteradroughtinfluenceofhydrologyandfreefloatingplantdynamicsinafloodplainlake |
_version_ |
1768544640162594816 |