How do spatial and environmental factors affect the fish community structure in seasonally flooded karst systems?

ABSTRACT Spatial and temporal variation of the physical and chemical conditions of coastal karst wetland ecosystems, which annually range from flooded to completely dry, generate a very dynamic fish community structure. We assessed the relative influence of spatial dependence and environmental facto...

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Autores principales:	Loera-Pérez,Joel, Hernández-Stefanoni,José L., Chiappa-Carrara,Xavier
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2020
Materias:	Gambusia yucatana wetland ecosystem spatial analysis Yucatan Peninsula
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2020000200268
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spelling	oai:scielo:S0718-560X20200002002682020-05-25How do spatial and environmental factors affect the fish community structure in seasonally flooded karst systems?Loera-Pérez,JoelHernández-Stefanoni,José L.Chiappa-Carrara,Xavier Gambusia yucatana wetland ecosystem spatial analysis Yucatan Peninsula ABSTRACT Spatial and temporal variation of the physical and chemical conditions of coastal karst wetland ecosystems, which annually range from flooded to completely dry, generate a very dynamic fish community structure. We assessed the relative influence of spatial dependence and environmental factors on fish community structure in a seasonally flooded tropical karst system on the north-western coast of the Yucatan Peninsula, Mexico. Sampling was carried out between November 2009 and April 2010, while the area was inundated by seasonal floodwater. Fish biomass, abundance and species richness, as well as environmental variables and geographic location, were recorded. A variation partitioning analysis was performed to assess the influence of the spatial and environmental variables on the fish community using multiple regression, and a principal coordinates analysis of neighbor matrices (PCNM). Spatial factors had a greater influence on the changes in the community structure than the environmental factors. After spatial variation, environmental effects from conductivity, oxygen saturation, temperature and depth further shaped the community. These results imply that, despite the diversity of niches and wide variation in environmental conditions, the structuring force of the community is the spatial dynamic probably linked to species dispersal mechanisms and reproductive strategies.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.48 n.2 20202020-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2020000200268en10.3856/vol48-issue2-fulltext-2420
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Gambusia yucatana wetland ecosystem spatial analysis Yucatan Peninsula
spellingShingle	Gambusia yucatana wetland ecosystem spatial analysis Yucatan Peninsula Loera-Pérez,Joel Hernández-Stefanoni,José L. Chiappa-Carrara,Xavier How do spatial and environmental factors affect the fish community structure in seasonally flooded karst systems?
description	ABSTRACT Spatial and temporal variation of the physical and chemical conditions of coastal karst wetland ecosystems, which annually range from flooded to completely dry, generate a very dynamic fish community structure. We assessed the relative influence of spatial dependence and environmental factors on fish community structure in a seasonally flooded tropical karst system on the north-western coast of the Yucatan Peninsula, Mexico. Sampling was carried out between November 2009 and April 2010, while the area was inundated by seasonal floodwater. Fish biomass, abundance and species richness, as well as environmental variables and geographic location, were recorded. A variation partitioning analysis was performed to assess the influence of the spatial and environmental variables on the fish community using multiple regression, and a principal coordinates analysis of neighbor matrices (PCNM). Spatial factors had a greater influence on the changes in the community structure than the environmental factors. After spatial variation, environmental effects from conductivity, oxygen saturation, temperature and depth further shaped the community. These results imply that, despite the diversity of niches and wide variation in environmental conditions, the structuring force of the community is the spatial dynamic probably linked to species dispersal mechanisms and reproductive strategies.
author	Loera-Pérez,Joel Hernández-Stefanoni,José L. Chiappa-Carrara,Xavier
author_facet	Loera-Pérez,Joel Hernández-Stefanoni,José L. Chiappa-Carrara,Xavier
author_sort	Loera-Pérez,Joel
title	How do spatial and environmental factors affect the fish community structure in seasonally flooded karst systems?
title_short	How do spatial and environmental factors affect the fish community structure in seasonally flooded karst systems?
title_full	How do spatial and environmental factors affect the fish community structure in seasonally flooded karst systems?
title_fullStr	How do spatial and environmental factors affect the fish community structure in seasonally flooded karst systems?
title_full_unstemmed	How do spatial and environmental factors affect the fish community structure in seasonally flooded karst systems?
title_sort	how do spatial and environmental factors affect the fish community structure in seasonally flooded karst systems?
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2020000200268
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How do spatial and environmental factors affect the fish community structure in seasonally flooded karst systems?

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