Foraging behaviour and patch size distribution jointly determine population dynamics in fragmented landscapes
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1098/rsif.2022.0103 http://hdl.handle.net/11449/241183 |
Resumo: | Increased fragmentation caused by habitat loss represents a major threat to the persistence of animal populations. How fragmentation affects populations depends on the rate at which individuals move between spatially separated patches. Whereas negative effects of habitat loss on biodiversity are well known, the effects of fragmentation per se on population dynamics and ecosystem stability remain less well understood. Here, we use a spatially explicit predator-prey model to investigate how the interplay between fragmentation and optimal foraging behaviour affects predator-prey interactions and, subsequently, ecosystem stability. We study systems wherein prey occupies isolated patches and are consumed by predators that disperse following Lévy random walks. Our results show that the Lévy exponent and the degree of fragmentation jointly determine coexistence probabilities. In highly fragmented landscapes, Brownian and ballistic predators go extinct and only scale-free predators can coexist with prey. Furthermore, our results confirm that predation causes irreversible habitat loss in fragmented landscapes owing to overexploitation of smaller patches of prey. Moreover, we show that predator dispersal can reduce, but not prevent or minimize, the amount of lost habitat. Our results suggest that integrating optimal foraging theory into population and landscape ecology is crucial to assessing the impact of fragmentation on biodiversity and ecosystem stability. |
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Foraging behaviour and patch size distribution jointly determine population dynamics in fragmented landscapesfragmentationLévy foragingpopulation dynamicsspatial ecologyIncreased fragmentation caused by habitat loss represents a major threat to the persistence of animal populations. How fragmentation affects populations depends on the rate at which individuals move between spatially separated patches. Whereas negative effects of habitat loss on biodiversity are well known, the effects of fragmentation per se on population dynamics and ecosystem stability remain less well understood. Here, we use a spatially explicit predator-prey model to investigate how the interplay between fragmentation and optimal foraging behaviour affects predator-prey interactions and, subsequently, ecosystem stability. We study systems wherein prey occupies isolated patches and are consumed by predators that disperse following Lévy random walks. Our results show that the Lévy exponent and the degree of fragmentation jointly determine coexistence probabilities. In highly fragmented landscapes, Brownian and ballistic predators go extinct and only scale-free predators can coexist with prey. Furthermore, our results confirm that predation causes irreversible habitat loss in fragmented landscapes owing to overexploitation of smaller patches of prey. Moreover, we show that predator dispersal can reduce, but not prevent or minimize, the amount of lost habitat. Our results suggest that integrating optimal foraging theory into population and landscape ecology is crucial to assessing the impact of fragmentation on biodiversity and ecosystem stability.Department of Information Technology-IDLab Ghent University-IMECWageningen University and Research Department of Social Sciences-Information Technology Group, Hollandseweg 1Universidade Estadual Paulista-UNESP, ICTP South American Institute for Fundamental Research and Instituto de Física TeóricaRua Dr Bento Teobaldo Ferraz 271Universidade Estadual Paulista-UNESP, ICTP South American Institute for Fundamental Research and Instituto de Física TeóricaRua Dr Bento Teobaldo Ferraz 271Ghent University-IMECWageningen University and ResearchUniversidade Estadual Paulista (UNESP)Nauta, JohannesSimoens, PieterKhaluf, YaraMartinez-Garcia, Ricardo [UNESP]2023-03-01T20:50:37Z2023-03-01T20:50:37Z2022-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article20220103http://dx.doi.org/10.1098/rsif.2022.0103Journal of the Royal Society, Interface, v. 19, n. 191, p. 20220103-, 2022.1742-5662http://hdl.handle.net/11449/24118310.1098/rsif.2022.01032-s2.0-85132282567Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Royal Society, Interfaceinfo:eu-repo/semantics/openAccess2023-03-01T20:50:37Zoai:repositorio.unesp.br:11449/241183Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:05:05.140224Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Foraging behaviour and patch size distribution jointly determine population dynamics in fragmented landscapes |
title |
Foraging behaviour and patch size distribution jointly determine population dynamics in fragmented landscapes |
spellingShingle |
Foraging behaviour and patch size distribution jointly determine population dynamics in fragmented landscapes Nauta, Johannes fragmentation Lévy foraging population dynamics spatial ecology |
title_short |
Foraging behaviour and patch size distribution jointly determine population dynamics in fragmented landscapes |
title_full |
Foraging behaviour and patch size distribution jointly determine population dynamics in fragmented landscapes |
title_fullStr |
Foraging behaviour and patch size distribution jointly determine population dynamics in fragmented landscapes |
title_full_unstemmed |
Foraging behaviour and patch size distribution jointly determine population dynamics in fragmented landscapes |
title_sort |
Foraging behaviour and patch size distribution jointly determine population dynamics in fragmented landscapes |
author |
Nauta, Johannes |
author_facet |
Nauta, Johannes Simoens, Pieter Khaluf, Yara Martinez-Garcia, Ricardo [UNESP] |
author_role |
author |
author2 |
Simoens, Pieter Khaluf, Yara Martinez-Garcia, Ricardo [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Ghent University-IMEC Wageningen University and Research Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Nauta, Johannes Simoens, Pieter Khaluf, Yara Martinez-Garcia, Ricardo [UNESP] |
dc.subject.por.fl_str_mv |
fragmentation Lévy foraging population dynamics spatial ecology |
topic |
fragmentation Lévy foraging population dynamics spatial ecology |
description |
Increased fragmentation caused by habitat loss represents a major threat to the persistence of animal populations. How fragmentation affects populations depends on the rate at which individuals move between spatially separated patches. Whereas negative effects of habitat loss on biodiversity are well known, the effects of fragmentation per se on population dynamics and ecosystem stability remain less well understood. Here, we use a spatially explicit predator-prey model to investigate how the interplay between fragmentation and optimal foraging behaviour affects predator-prey interactions and, subsequently, ecosystem stability. We study systems wherein prey occupies isolated patches and are consumed by predators that disperse following Lévy random walks. Our results show that the Lévy exponent and the degree of fragmentation jointly determine coexistence probabilities. In highly fragmented landscapes, Brownian and ballistic predators go extinct and only scale-free predators can coexist with prey. Furthermore, our results confirm that predation causes irreversible habitat loss in fragmented landscapes owing to overexploitation of smaller patches of prey. Moreover, we show that predator dispersal can reduce, but not prevent or minimize, the amount of lost habitat. Our results suggest that integrating optimal foraging theory into population and landscape ecology is crucial to assessing the impact of fragmentation on biodiversity and ecosystem stability. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-06-01 2023-03-01T20:50:37Z 2023-03-01T20:50:37Z |
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/10.1098/rsif.2022.0103 Journal of the Royal Society, Interface, v. 19, n. 191, p. 20220103-, 2022. 1742-5662 http://hdl.handle.net/11449/241183 10.1098/rsif.2022.0103 2-s2.0-85132282567 |
url |
http://dx.doi.org/10.1098/rsif.2022.0103 http://hdl.handle.net/11449/241183 |
identifier_str_mv |
Journal of the Royal Society, Interface, v. 19, n. 191, p. 20220103-, 2022. 1742-5662 10.1098/rsif.2022.0103 2-s2.0-85132282567 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of the Royal Society, Interface |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
20220103 |
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_ |
1808129281754136576 |