Dynamics of adaptation in spatially heterogeneous metapopulations
The selection pressure experienced by organisms often varies across the species range. It is hence crucial to characterise the link between environmental spatial heterogeneity and the adaptive dynamics of species or populations. We address this issue by studying the phenotypic evolution of a spatial...
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| Veröffentlicht in: | PloS one 2013-02, Vol.8 (2), p.e54697-15 |
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| creator | Papaïx, Julien David, Olivier Lannou, Christian Monod, Hervé |
| description | The selection pressure experienced by organisms often varies across the species range. It is hence crucial to characterise the link between environmental spatial heterogeneity and the adaptive dynamics of species or populations. We address this issue by studying the phenotypic evolution of a spatial metapopulation using an adaptive dynamics approach. The singular strategy is found to be the mean of the optimal phenotypes in each habitat with larger weights for habitats present in large and well connected patches. The presence of spatial clusters of habitats in the metapopulation is found to facilitate specialisation and to increase both the level of adaptation and the evolutionary speed of the population when dispersal is limited. By showing that spatial structures are crucial in determining the specialisation level and the evolutionary speed of a population, our results give insight into the influence of spatial heterogeneity on the niche breadth of species. |
| doi_str_mv | 10.1371/journal.pone.0054697 |
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It is hence crucial to characterise the link between environmental spatial heterogeneity and the adaptive dynamics of species or populations. We address this issue by studying the phenotypic evolution of a spatial metapopulation using an adaptive dynamics approach. The singular strategy is found to be the mean of the optimal phenotypes in each habitat with larger weights for habitats present in large and well connected patches. The presence of spatial clusters of habitats in the metapopulation is found to facilitate specialisation and to increase both the level of adaptation and the evolutionary speed of the population when dispersal is limited. By showing that spatial structures are crucial in determining the specialisation level and the evolutionary speed of a population, our results give insight into the influence of spatial heterogeneity on the niche breadth of species.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0054697</identifier><identifier>PMID: 23424618</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Adaptation ; Adaptation, Physiological ; Agricultural sciences ; Agriculture ; Applied mathematics ; Biodiversity ; Biological evolution ; Biology ; Birds ; Dispersal ; Ecology ; Ecosystem ; Environmental conditions ; Epidemiology ; Evolution ; Evolution, Molecular ; Habitats ; Heterogeneity ; Informatics ; Life Sciences ; Mathematics ; Metapopulations ; Models, Biological ; Niche breadth ; Organisms ; Plant diseases ; Population ; Selection, Genetic ; Sensitivity analysis ; Spatial Analysis ; Spatial heterogeneity ; Specialization ; Species ; Time Factors</subject><ispartof>PloS one, 2013-02, Vol.8 (2), p.e54697-15</ispartof><rights>COPYRIGHT 2013 Public Library of Science</rights><rights>2013 Papaïx et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License: https://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 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It is hence crucial to characterise the link between environmental spatial heterogeneity and the adaptive dynamics of species or populations. We address this issue by studying the phenotypic evolution of a spatial metapopulation using an adaptive dynamics approach. The singular strategy is found to be the mean of the optimal phenotypes in each habitat with larger weights for habitats present in large and well connected patches. The presence of spatial clusters of habitats in the metapopulation is found to facilitate specialisation and to increase both the level of adaptation and the evolutionary speed of the population when dispersal is limited. 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It is hence crucial to characterise the link between environmental spatial heterogeneity and the adaptive dynamics of species or populations. We address this issue by studying the phenotypic evolution of a spatial metapopulation using an adaptive dynamics approach. The singular strategy is found to be the mean of the optimal phenotypes in each habitat with larger weights for habitats present in large and well connected patches. The presence of spatial clusters of habitats in the metapopulation is found to facilitate specialisation and to increase both the level of adaptation and the evolutionary speed of the population when dispersal is limited. 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| subjects | Adaptation Adaptation, Physiological Agricultural sciences Agriculture Applied mathematics Biodiversity Biological evolution Biology Birds Dispersal Ecology Ecosystem Environmental conditions Epidemiology Evolution Evolution, Molecular Habitats Heterogeneity Informatics Life Sciences Mathematics Metapopulations Models, Biological Niche breadth Organisms Plant diseases Population Selection, Genetic Sensitivity analysis Spatial Analysis Spatial heterogeneity Specialization Species Time Factors |
| title | Dynamics of adaptation in spatially heterogeneous metapopulations |
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