Hierarchical spatial segregation of two Mediterranean vole species: the role of patch‑network structure and matrix composition

Detalhes bibliográficos
Autor(a) principal: Pita, Ricardo
Data de Publicação: 2016
Outros Autores: Lambin, Xavier, Mira, António, Beja, Pedro
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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spelling 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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