Spatial structures of the environment and of dispersal impact species distribution in competitive metacommunities.

The correspondence between species distribution and the environment depends on species' ability to track favorable environmental conditions (via dispersal) and to maintain competitive hierarchy against the constant influx of migrants (mass effect) and demographic stochasticity (ecological drift...

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Autores principales:	Dexiecuo Ai, Dominique Gravel, Chengjin Chu, Gang Wang
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e1934da018a940f789c5e586d4345128
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id	oai:doaj.org-article:e1934da018a940f789c5e586d4345128
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spelling	oai:doaj.org-article:e1934da018a940f789c5e586d43451282021-11-18T07:37:16ZSpatial structures of the environment and of dispersal impact species distribution in competitive metacommunities.1932-620310.1371/journal.pone.0068927https://doaj.org/article/e1934da018a940f789c5e586d43451282013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23874815/?tool=EBIhttps://doaj.org/toc/1932-6203The correspondence between species distribution and the environment depends on species' ability to track favorable environmental conditions (via dispersal) and to maintain competitive hierarchy against the constant influx of migrants (mass effect) and demographic stochasticity (ecological drift). Here we report a simulation study of the influence of landscape structure on species distribution. We consider lottery competition for space in a spatially heterogeneous environment, where the landscape is represented as a network of localities connected by dispersal. We quantified the contribution of neutrality and species sorting to their spatial distribution. We found that neutrality increases and the strength of species-sorting decreases with the centrality of a community in the landscape when the average dispersal among communities is low, whereas the opposite was found at elevated dispersal. We also found that the strength of species-sorting increases with environmental heterogeneity. Our results illustrate that spatial structure of the environment and of dispersal must be taken into account for understanding species distribution. We stress the importance of spatial geographic structure on the relative importance of niche vs. neutral processes in controlling community dynamics.Dexiecuo AiDominique GravelChengjin ChuGang WangPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 7, p e68927 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Dexiecuo Ai Dominique Gravel Chengjin Chu Gang Wang Spatial structures of the environment and of dispersal impact species distribution in competitive metacommunities.
description	The correspondence between species distribution and the environment depends on species' ability to track favorable environmental conditions (via dispersal) and to maintain competitive hierarchy against the constant influx of migrants (mass effect) and demographic stochasticity (ecological drift). Here we report a simulation study of the influence of landscape structure on species distribution. We consider lottery competition for space in a spatially heterogeneous environment, where the landscape is represented as a network of localities connected by dispersal. We quantified the contribution of neutrality and species sorting to their spatial distribution. We found that neutrality increases and the strength of species-sorting decreases with the centrality of a community in the landscape when the average dispersal among communities is low, whereas the opposite was found at elevated dispersal. We also found that the strength of species-sorting increases with environmental heterogeneity. Our results illustrate that spatial structure of the environment and of dispersal must be taken into account for understanding species distribution. We stress the importance of spatial geographic structure on the relative importance of niche vs. neutral processes in controlling community dynamics.
format	article
author	Dexiecuo Ai Dominique Gravel Chengjin Chu Gang Wang
author_facet	Dexiecuo Ai Dominique Gravel Chengjin Chu Gang Wang
author_sort	Dexiecuo Ai
title	Spatial structures of the environment and of dispersal impact species distribution in competitive metacommunities.
title_short	Spatial structures of the environment and of dispersal impact species distribution in competitive metacommunities.
title_full	Spatial structures of the environment and of dispersal impact species distribution in competitive metacommunities.
title_fullStr	Spatial structures of the environment and of dispersal impact species distribution in competitive metacommunities.
title_full_unstemmed	Spatial structures of the environment and of dispersal impact species distribution in competitive metacommunities.
title_sort	spatial structures of the environment and of dispersal impact species distribution in competitive metacommunities.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/e1934da018a940f789c5e586d4345128
work_keys_str_mv	AT dexiecuoai spatialstructuresoftheenvironmentandofdispersalimpactspeciesdistributionincompetitivemetacommunities AT dominiquegravel spatialstructuresoftheenvironmentandofdispersalimpactspeciesdistributionincompetitivemetacommunities AT chengjinchu spatialstructuresoftheenvironmentandofdispersalimpactspeciesdistributionincompetitivemetacommunities AT gangwang spatialstructuresoftheenvironmentandofdispersalimpactspeciesdistributionincompetitivemetacommunities
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Spatial structures of the environment and of dispersal impact species distribution in competitive metacommunities.

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