Enhanced species coexistence in Lotka-Volterra competition models due to nonlocal interactions
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.jtbi.2021.110872 http://hdl.handle.net/11449/229439 |
Resumo: | We introduce and analyze a spatial Lotka-Volterra competition model with local and nonlocal interactions. We study two alternative classes of nonlocal competition that differ in how each species’ characteristics determine the range of the nonlocal interactions. In both cases, nonlocal interactions can create spatial patterns of population densities in which highly populated clumps alternate with unpopulated regions. These non-populated regions provide spatial niches for a weaker competitor to establish in the community and persist in conditions in which local models predict competitive exclusion. Moreover, depending on the balance between local and nonlocal competition intensity, the clumps of the weaker competitor vary from M-like structures with higher densities of individuals accumulating at the edges of each clump to triangular structures with most individuals occupying their centers. These results suggest that long-range competition, through the creation of spatial patterns in population densities, might be a key driving force behind the rich diversity of species observed in natural ecological communities. |
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Repositório Institucional da UNESP |
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Enhanced species coexistence in Lotka-Volterra competition models due to nonlocal interactionsEcological communitiesIntegro-differential modelsLotka-Volterra systemsPattern formationWe introduce and analyze a spatial Lotka-Volterra competition model with local and nonlocal interactions. We study two alternative classes of nonlocal competition that differ in how each species’ characteristics determine the range of the nonlocal interactions. In both cases, nonlocal interactions can create spatial patterns of population densities in which highly populated clumps alternate with unpopulated regions. These non-populated regions provide spatial niches for a weaker competitor to establish in the community and persist in conditions in which local models predict competitive exclusion. Moreover, depending on the balance between local and nonlocal competition intensity, the clumps of the weaker competitor vary from M-like structures with higher densities of individuals accumulating at the edges of each clump to triangular structures with most individuals occupying their centers. These results suggest that long-range competition, through the creation of spatial patterns in population densities, might be a key driving force behind the rich diversity of species observed in natural ecological communities.ICTP South American Institute for Fundamental Research & Instituto de Física Teórica Universidade Estadual Paulista - UNESP, Rua Dr. Bento Teobaldo Ferraz 271, Bloco 2 - Barra FundaICTP South American Institute for Fundamental Research & Instituto de Física Teórica Universidade Estadual Paulista - UNESP, Rua Dr. Bento Teobaldo Ferraz 271, Bloco 2 - Barra FundaUniversidade Estadual Paulista (UNESP)Andreguetto Maciel, Gabriel [UNESP]Martinez-Garcia, Ricardo [UNESP]2022-04-29T08:32:34Z2022-04-29T08:32:34Z2021-12-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.jtbi.2021.110872Journal of Theoretical Biology, v. 530.1095-85410022-5193http://hdl.handle.net/11449/22943910.1016/j.jtbi.2021.1108722-s2.0-85113953250Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Theoretical Biologyinfo:eu-repo/semantics/openAccess2022-04-29T08:32:34Zoai:repositorio.unesp.br:11449/229439Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:05:54.912014Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Enhanced species coexistence in Lotka-Volterra competition models due to nonlocal interactions |
title |
Enhanced species coexistence in Lotka-Volterra competition models due to nonlocal interactions |
spellingShingle |
Enhanced species coexistence in Lotka-Volterra competition models due to nonlocal interactions Andreguetto Maciel, Gabriel [UNESP] Ecological communities Integro-differential models Lotka-Volterra systems Pattern formation |
title_short |
Enhanced species coexistence in Lotka-Volterra competition models due to nonlocal interactions |
title_full |
Enhanced species coexistence in Lotka-Volterra competition models due to nonlocal interactions |
title_fullStr |
Enhanced species coexistence in Lotka-Volterra competition models due to nonlocal interactions |
title_full_unstemmed |
Enhanced species coexistence in Lotka-Volterra competition models due to nonlocal interactions |
title_sort |
Enhanced species coexistence in Lotka-Volterra competition models due to nonlocal interactions |
author |
Andreguetto Maciel, Gabriel [UNESP] |
author_facet |
Andreguetto Maciel, Gabriel [UNESP] Martinez-Garcia, Ricardo [UNESP] |
author_role |
author |
author2 |
Martinez-Garcia, Ricardo [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Andreguetto Maciel, Gabriel [UNESP] Martinez-Garcia, Ricardo [UNESP] |
dc.subject.por.fl_str_mv |
Ecological communities Integro-differential models Lotka-Volterra systems Pattern formation |
topic |
Ecological communities Integro-differential models Lotka-Volterra systems Pattern formation |
description |
We introduce and analyze a spatial Lotka-Volterra competition model with local and nonlocal interactions. We study two alternative classes of nonlocal competition that differ in how each species’ characteristics determine the range of the nonlocal interactions. In both cases, nonlocal interactions can create spatial patterns of population densities in which highly populated clumps alternate with unpopulated regions. These non-populated regions provide spatial niches for a weaker competitor to establish in the community and persist in conditions in which local models predict competitive exclusion. Moreover, depending on the balance between local and nonlocal competition intensity, the clumps of the weaker competitor vary from M-like structures with higher densities of individuals accumulating at the edges of each clump to triangular structures with most individuals occupying their centers. These results suggest that long-range competition, through the creation of spatial patterns in population densities, might be a key driving force behind the rich diversity of species observed in natural ecological communities. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-12-07 2022-04-29T08:32:34Z 2022-04-29T08:32:34Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.jtbi.2021.110872 Journal of Theoretical Biology, v. 530. 1095-8541 0022-5193 http://hdl.handle.net/11449/229439 10.1016/j.jtbi.2021.110872 2-s2.0-85113953250 |
url |
http://dx.doi.org/10.1016/j.jtbi.2021.110872 http://hdl.handle.net/11449/229439 |
identifier_str_mv |
Journal of Theoretical Biology, v. 530. 1095-8541 0022-5193 10.1016/j.jtbi.2021.110872 2-s2.0-85113953250 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Theoretical Biology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129582497267712 |