Effect of Spatial Heterogeneity on Zooplankton Diversity: A Multi-Scale Habitat Approximation in a Floodplain Lake

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Environmental heterogeneity is an essential quality of ecosystems as it has important implications in community structure. Macrophytes are a main component of environmental heterogeneity in floodplain lakes, and their dynamics are highly influenced by water level changes. In this context, we analyse...

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Autores principales:	Chaparro, Griselda Noemi, Kandus, Patricia, O'Farrell, Inés
Publicado:	2015
Materias:	Diversity Macrophytes Remote sensing Spatial patterns Water level Zooplankton
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15351459_v31_n1_p85_Chaparro http://hdl.handle.net/20.500.12110/paper_15351459_v31_n1_p85_Chaparro
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_15351459_v31_n1_p85_Chaparro
record_format	dspace
spelling	paper:paper_15351459_v31_n1_p85_Chaparro2023-06-08T16:20:04Z Effect of Spatial Heterogeneity on Zooplankton Diversity: A Multi-Scale Habitat Approximation in a Floodplain Lake Chaparro, Griselda Noemi Kandus, Patricia O'Farrell, Inés Diversity Macrophytes Remote sensing Spatial patterns Water level Zooplankton Environmental heterogeneity is an essential quality of ecosystems as it has important implications in community structure. Macrophytes are a main component of environmental heterogeneity in floodplain lakes, and their dynamics are highly influenced by water level changes. In this context, we analysed at different spatial scales the relationship among hydrological variations, environmental heterogeneity associated to macrophytes and zooplankton regional diversity (γ diversity) in a South American floodplain lake adjacent to the Paraná River, and we also compared the local zooplankton diversity (α diversity) among the different environments that comprised the lake heterogeneity. At very low waters, the environmental heterogeneity was reduced as the lake was mainly limited to open water areas with low zooplankton diversity. At high waters, the profuse vegetation development (emergent and free-floating), in mixed or homogeneous patches, determined a higher lake environmental heterogeneity with enhanced regional zooplankton diversity; littoral species increased over limnetic ones. Zooplankton α diversity was higher in environments with free-floating macrophytes than in those without these plants. The structural complexity in the water column provided by plant roots would be closely related to the enhanced diversity found under free-floating mats. This study contributes to the knowledge on the effects of strong water level variations on environmental heterogeneity, which is strongly associated to macrophytes and on zooplankton diversity, and highlights the role of free-floating plants as diversity hosts and 'key structures' in floodplain lakes. © 2013 John Wiley & Sons, Ltd. Fil:Chaparro, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Kandus, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:O'Farrell, I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15351459_v31_n1_p85_Chaparro http://hdl.handle.net/20.500.12110/paper_15351459_v31_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	Diversity Macrophytes Remote sensing Spatial patterns Water level Zooplankton
spellingShingle	Diversity Macrophytes Remote sensing Spatial patterns Water level Zooplankton Chaparro, Griselda Noemi Kandus, Patricia O'Farrell, Inés Effect of Spatial Heterogeneity on Zooplankton Diversity: A Multi-Scale Habitat Approximation in a Floodplain Lake
topic_facet	Diversity Macrophytes Remote sensing Spatial patterns Water level Zooplankton
description	Environmental heterogeneity is an essential quality of ecosystems as it has important implications in community structure. Macrophytes are a main component of environmental heterogeneity in floodplain lakes, and their dynamics are highly influenced by water level changes. In this context, we analysed at different spatial scales the relationship among hydrological variations, environmental heterogeneity associated to macrophytes and zooplankton regional diversity (γ diversity) in a South American floodplain lake adjacent to the Paraná River, and we also compared the local zooplankton diversity (α diversity) among the different environments that comprised the lake heterogeneity. At very low waters, the environmental heterogeneity was reduced as the lake was mainly limited to open water areas with low zooplankton diversity. At high waters, the profuse vegetation development (emergent and free-floating), in mixed or homogeneous patches, determined a higher lake environmental heterogeneity with enhanced regional zooplankton diversity; littoral species increased over limnetic ones. Zooplankton α diversity was higher in environments with free-floating macrophytes than in those without these plants. The structural complexity in the water column provided by plant roots would be closely related to the enhanced diversity found under free-floating mats. This study contributes to the knowledge on the effects of strong water level variations on environmental heterogeneity, which is strongly associated to macrophytes and on zooplankton diversity, and highlights the role of free-floating plants as diversity hosts and 'key structures' in floodplain lakes. © 2013 John Wiley & Sons, Ltd.
author	Chaparro, Griselda Noemi Kandus, Patricia O'Farrell, Inés
author_facet	Chaparro, Griselda Noemi Kandus, Patricia O'Farrell, Inés
author_sort	Chaparro, Griselda Noemi
title	Effect of Spatial Heterogeneity on Zooplankton Diversity: A Multi-Scale Habitat Approximation in a Floodplain Lake
title_short	Effect of Spatial Heterogeneity on Zooplankton Diversity: A Multi-Scale Habitat Approximation in a Floodplain Lake
title_full	Effect of Spatial Heterogeneity on Zooplankton Diversity: A Multi-Scale Habitat Approximation in a Floodplain Lake
title_fullStr	Effect of Spatial Heterogeneity on Zooplankton Diversity: A Multi-Scale Habitat Approximation in a Floodplain Lake
title_full_unstemmed	Effect of Spatial Heterogeneity on Zooplankton Diversity: A Multi-Scale Habitat Approximation in a Floodplain Lake
title_sort	effect of spatial heterogeneity on zooplankton diversity: a multi-scale habitat approximation in a floodplain lake
publishDate	2015
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15351459_v31_n1_p85_Chaparro http://hdl.handle.net/20.500.12110/paper_15351459_v31_n1_p85_Chaparro
work_keys_str_mv	AT chaparrogriseldanoemi effectofspatialheterogeneityonzooplanktondiversityamultiscalehabitatapproximationinafloodplainlake AT kanduspatricia effectofspatialheterogeneityonzooplanktondiversityamultiscalehabitatapproximationinafloodplainlake AT ofarrellines effectofspatialheterogeneityonzooplanktondiversityamultiscalehabitatapproximationinafloodplainlake
_version_	1768545572565811200

Effect of Spatial Heterogeneity on Zooplankton Diversity: A Multi-Scale Habitat Approximation in a Floodplain Lake

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