Hierarchical spatial segregation of two Mediterranean vole species: the role of patch‑network structure and matrix composition
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/19992 |
Resumo: | According to ecological theory, the coexistence of competitors in patchy environments may be facilitated by hierarchical spatial segregation along axes of environmental variation, but empirical evidence is limited. Cabrera and water voles show a metapopulation-like structure in Mediterranean farmland, where they are known to segregate along space, habitat, and time axes within habitat patches. Here, we assess whether segregation also occurs among and within landscapes, and how this is influenced by patch-network and matrix composition. We surveyed 75 landscapes, each covering 78 ha, where we mapped all habitat patches potentially suitable for Cabrera and water voles, and the area effectively occupied by each species (extent of occupancy). The relatively large water vole tended to be the sole occupant of landscapes with high habitat amount but relatively low patch density (i.e., with a few large patches), and with a predominantly agricultural matrix, whereas landscapes with high patch density (i.e.,many small patches) and low agricultural cover, tended to be occupied exclusively by the small Cabrera vole. The two species tended to co-occur in landscapes with intermediate patch-network and matrix characteristics, though their extents of occurrence were negatively correlated after controlling for environmental effects. In combination with our previous studies on the Cabrera-water vole system, these findings illustrated empirically the occurrence of hierarchical spatial segregation, ranging from withinpatches to among-landscapes. Overall, our study suggests that recognizing the hierarchical nature of spatial segregation patterns and their major environmental drivers should enhance our understanding of species coexistence in patchy environments. |
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Hierarchical spatial segregation of two Mediterranean vole species: the role of patch‑network structure and matrix compositionCabrera voleCompetitionLandscape HetrogeneityPatchy environmentsSpecies coexistenceSouthern water voleAccording to ecological theory, the coexistence of competitors in patchy environments may be facilitated by hierarchical spatial segregation along axes of environmental variation, but empirical evidence is limited. Cabrera and water voles show a metapopulation-like structure in Mediterranean farmland, where they are known to segregate along space, habitat, and time axes within habitat patches. Here, we assess whether segregation also occurs among and within landscapes, and how this is influenced by patch-network and matrix composition. We surveyed 75 landscapes, each covering 78 ha, where we mapped all habitat patches potentially suitable for Cabrera and water voles, and the area effectively occupied by each species (extent of occupancy). The relatively large water vole tended to be the sole occupant of landscapes with high habitat amount but relatively low patch density (i.e., with a few large patches), and with a predominantly agricultural matrix, whereas landscapes with high patch density (i.e.,many small patches) and low agricultural cover, tended to be occupied exclusively by the small Cabrera vole. The two species tended to co-occur in landscapes with intermediate patch-network and matrix characteristics, though their extents of occurrence were negatively correlated after controlling for environmental effects. In combination with our previous studies on the Cabrera-water vole system, these findings illustrated empirically the occurrence of hierarchical spatial segregation, ranging from withinpatches to among-landscapes. Overall, our study suggests that recognizing the hierarchical nature of spatial segregation patterns and their major environmental drivers should enhance our understanding of species coexistence in patchy environments.Oecologia2017-01-24T12:08:02Z2017-01-242016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/19992http://hdl.handle.net/10174/19992engPita, R., Lambin, X., Mira, A.; Beja, P. 2016. Hierarchical spatial segregation of two Mediterranean vole species: the role of patch-network structure and matrix composition. Oecologia, 182:253-263.253-263182OecologiaICAAMndndamira@uevora.ptnd221DOI 10.1007/s00442-016-3653-yPita, RicardoLambin, XavierMira, AntónioBeja, Pedroinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T19:09:40Zoai:dspace.uevora.pt:10174/19992Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:11:35.403784Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Hierarchical spatial segregation of two Mediterranean vole species: the role of patch‑network structure and matrix composition |
title |
Hierarchical spatial segregation of two Mediterranean vole species: the role of patch‑network structure and matrix composition |
spellingShingle |
Hierarchical spatial segregation of two Mediterranean vole species: the role of patch‑network structure and matrix composition Pita, Ricardo Cabrera vole Competition Landscape Hetrogeneity Patchy environments Species coexistence Southern water vole |
title_short |
Hierarchical spatial segregation of two Mediterranean vole species: the role of patch‑network structure and matrix composition |
title_full |
Hierarchical spatial segregation of two Mediterranean vole species: the role of patch‑network structure and matrix composition |
title_fullStr |
Hierarchical spatial segregation of two Mediterranean vole species: the role of patch‑network structure and matrix composition |
title_full_unstemmed |
Hierarchical spatial segregation of two Mediterranean vole species: the role of patch‑network structure and matrix composition |
title_sort |
Hierarchical spatial segregation of two Mediterranean vole species: the role of patch‑network structure and matrix composition |
author |
Pita, Ricardo |
author_facet |
Pita, Ricardo Lambin, Xavier Mira, António Beja, Pedro |
author_role |
author |
author2 |
Lambin, Xavier Mira, António Beja, Pedro |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Pita, Ricardo Lambin, Xavier Mira, António Beja, Pedro |
dc.subject.por.fl_str_mv |
Cabrera vole Competition Landscape Hetrogeneity Patchy environments Species coexistence Southern water vole |
topic |
Cabrera vole Competition Landscape Hetrogeneity Patchy environments Species coexistence Southern water vole |
description |
According to ecological theory, the coexistence of competitors in patchy environments may be facilitated by hierarchical spatial segregation along axes of environmental variation, but empirical evidence is limited. Cabrera and water voles show a metapopulation-like structure in Mediterranean farmland, where they are known to segregate along space, habitat, and time axes within habitat patches. Here, we assess whether segregation also occurs among and within landscapes, and how this is influenced by patch-network and matrix composition. We surveyed 75 landscapes, each covering 78 ha, where we mapped all habitat patches potentially suitable for Cabrera and water voles, and the area effectively occupied by each species (extent of occupancy). The relatively large water vole tended to be the sole occupant of landscapes with high habitat amount but relatively low patch density (i.e., with a few large patches), and with a predominantly agricultural matrix, whereas landscapes with high patch density (i.e.,many small patches) and low agricultural cover, tended to be occupied exclusively by the small Cabrera vole. The two species tended to co-occur in landscapes with intermediate patch-network and matrix characteristics, though their extents of occurrence were negatively correlated after controlling for environmental effects. In combination with our previous studies on the Cabrera-water vole system, these findings illustrated empirically the occurrence of hierarchical spatial segregation, ranging from withinpatches to among-landscapes. Overall, our study suggests that recognizing the hierarchical nature of spatial segregation patterns and their major environmental drivers should enhance our understanding of species coexistence in patchy environments. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-01T00:00:00Z 2017-01-24T12:08:02Z 2017-01-24 |
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://hdl.handle.net/10174/19992 http://hdl.handle.net/10174/19992 |
url |
http://hdl.handle.net/10174/19992 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Pita, R., Lambin, X., Mira, A.; Beja, P. 2016. Hierarchical spatial segregation of two Mediterranean vole species: the role of patch-network structure and matrix composition. Oecologia, 182:253-263. 253-263 182 Oecologia ICAAM nd nd amira@uevora.pt nd 221 DOI 10.1007/s00442-016-3653-y |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Oecologia |
publisher.none.fl_str_mv |
Oecologia |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799136597822668800 |