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Difference Inadaptive Dispersal Ability Can Promote Species Coexistence in Fluctuating Environments
Theories and empirical evidence suggest that random dispersal of organisms promotes species coexistence in spatially structured environments. However, directed dispersal, where movement is adjusted with fitness-related cues, is less explored in studies of dispersal-mediated coexistence. Here, we pre...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3562337/ https://www.ncbi.nlm.nih.gov/pubmed/23383314 http://dx.doi.org/10.1371/journal.pone.0055218 |
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author | Lin, Wei-Ting Hsieh, Chih-hao Miki, Takeshi |
author_facet | Lin, Wei-Ting Hsieh, Chih-hao Miki, Takeshi |
author_sort | Lin, Wei-Ting |
collection | PubMed |
description | Theories and empirical evidence suggest that random dispersal of organisms promotes species coexistence in spatially structured environments. However, directed dispersal, where movement is adjusted with fitness-related cues, is less explored in studies of dispersal-mediated coexistence. Here, we present a metacommunity model of two consumers exhibiting directed dispersal and competing for a single resource. Our results indicated that directed dispersal promotes coexistence through two distinct mechanisms, depending on the adaptiveness of dispersal. Maladaptive directed dispersal may promote coexistence similar to random dispersal. More importantly, directed dispersal is adaptive when dispersers track patches of increased resources in fluctuating environments. Coexistence is promoted under increased adaptive dispersal ability of the inferior competitor relative to the superior competitor. This newly described dispersal-mediated coexistence mechanism is likely favored by natural selection under the trade-off between competitive and adaptive dispersal abilities. |
format | Online Article Text |
id | pubmed-3562337 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-35623372013-02-04 Difference Inadaptive Dispersal Ability Can Promote Species Coexistence in Fluctuating Environments Lin, Wei-Ting Hsieh, Chih-hao Miki, Takeshi PLoS One Research Article Theories and empirical evidence suggest that random dispersal of organisms promotes species coexistence in spatially structured environments. However, directed dispersal, where movement is adjusted with fitness-related cues, is less explored in studies of dispersal-mediated coexistence. Here, we present a metacommunity model of two consumers exhibiting directed dispersal and competing for a single resource. Our results indicated that directed dispersal promotes coexistence through two distinct mechanisms, depending on the adaptiveness of dispersal. Maladaptive directed dispersal may promote coexistence similar to random dispersal. More importantly, directed dispersal is adaptive when dispersers track patches of increased resources in fluctuating environments. Coexistence is promoted under increased adaptive dispersal ability of the inferior competitor relative to the superior competitor. This newly described dispersal-mediated coexistence mechanism is likely favored by natural selection under the trade-off between competitive and adaptive dispersal abilities. Public Library of Science 2013-02-01 /pmc/articles/PMC3562337/ /pubmed/23383314 http://dx.doi.org/10.1371/journal.pone.0055218 Text en © 2013 Lin et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Lin, Wei-Ting Hsieh, Chih-hao Miki, Takeshi Difference Inadaptive Dispersal Ability Can Promote Species Coexistence in Fluctuating Environments |
title | Difference Inadaptive Dispersal Ability Can Promote Species Coexistence in Fluctuating Environments |
title_full | Difference Inadaptive Dispersal Ability Can Promote Species Coexistence in Fluctuating Environments |
title_fullStr | Difference Inadaptive Dispersal Ability Can Promote Species Coexistence in Fluctuating Environments |
title_full_unstemmed | Difference Inadaptive Dispersal Ability Can Promote Species Coexistence in Fluctuating Environments |
title_short | Difference Inadaptive Dispersal Ability Can Promote Species Coexistence in Fluctuating Environments |
title_sort | difference inadaptive dispersal ability can promote species coexistence in fluctuating environments |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3562337/ https://www.ncbi.nlm.nih.gov/pubmed/23383314 http://dx.doi.org/10.1371/journal.pone.0055218 |
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