Generalities of vertebrate responses to landscape composition and configuration gradients in a highly heterogeneous Mediterranean region
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/10174/19974 |
Resumo: | Aim To examine the distributional patterns of vertebrates (including birds, bats, carnivores and lagomorphs) along landscape composition and configuration gradients to better understand the effects of landscape modification on occurrence patterns at both species and community level. Location The region of Alentejo, a forest-dominated area of southern Portugal. Methods The study area was framed using 1647 hexagonal plots, each of 259 ha in size. Composition and configuration gradients were obtained for each plot by integrating the proportions of the main land cover types and their configuration patterns using multivariate analyses. Species-specific vertebrate responses were investigated using data from 75 plots in which carnivores, bats and lagomorphs were sampled, and from 135 plots in the case of birds. Community- level responses were investigated through changes in species richness and beta-diversity in 57 plots where all vertebrate groups were simultaneously sampled. At the species-level, an information-theoretic approach was used to determine the effects of landscape gradients on species’ responses. At the community level, Mantel tests were used to determine between-plot differences in species composition using the Sørensen dissimilarity index. Results We found that the occurrence patterns of most vertebrate species were best predicted by composition-related gradients, although configuration gradients were also frequently included in species-specific occurrence models. We also found a weak correlation between species richness and most landscape gradients suggesting a turnover in the identity of species, something that was corroborated by the stronger correlation between environmental gradients and beta-diversity measures. The amount of forest cover and landscape complexity (estimated as the heterogeneity in the size and number of land cover types) were the main composition and configuration gradients determining vertebrate responses at both species and community level. Main conclusions Our work contributes to a more refined understanding of the mechanisms underlying species distributional patterns in real-world human-modified landscapes. By uncovering generalities of species with multiple ecological requirements and by describing the entire landscape mosaic through landscape gradients, we also suggest that our work greatly helps to fill the gap between existing conceptual landscape models aimed to understand species distributional patterns in human-modified landscapes. |
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Generalities of vertebrate responses to landscape composition and configuration gradients in a highly heterogeneous Mediterranean regionAgricultural countrysideConceptual modelsenvioronmental gradientslandscape modificationMediterranean LandscapesMulti-species conservationSpecies conservationAim To examine the distributional patterns of vertebrates (including birds, bats, carnivores and lagomorphs) along landscape composition and configuration gradients to better understand the effects of landscape modification on occurrence patterns at both species and community level. Location The region of Alentejo, a forest-dominated area of southern Portugal. Methods The study area was framed using 1647 hexagonal plots, each of 259 ha in size. Composition and configuration gradients were obtained for each plot by integrating the proportions of the main land cover types and their configuration patterns using multivariate analyses. Species-specific vertebrate responses were investigated using data from 75 plots in which carnivores, bats and lagomorphs were sampled, and from 135 plots in the case of birds. Community- level responses were investigated through changes in species richness and beta-diversity in 57 plots where all vertebrate groups were simultaneously sampled. At the species-level, an information-theoretic approach was used to determine the effects of landscape gradients on species’ responses. At the community level, Mantel tests were used to determine between-plot differences in species composition using the Sørensen dissimilarity index. Results We found that the occurrence patterns of most vertebrate species were best predicted by composition-related gradients, although configuration gradients were also frequently included in species-specific occurrence models. We also found a weak correlation between species richness and most landscape gradients suggesting a turnover in the identity of species, something that was corroborated by the stronger correlation between environmental gradients and beta-diversity measures. The amount of forest cover and landscape complexity (estimated as the heterogeneity in the size and number of land cover types) were the main composition and configuration gradients determining vertebrate responses at both species and community level. Main conclusions Our work contributes to a more refined understanding of the mechanisms underlying species distributional patterns in real-world human-modified landscapes. By uncovering generalities of species with multiple ecological requirements and by describing the entire landscape mosaic through landscape gradients, we also suggest that our work greatly helps to fill the gap between existing conceptual landscape models aimed to understand species distributional patterns in human-modified landscapes.Journal of Biogeography2017-01-23T17:39:44Z2017-01-232016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/19974http://hdl.handle.net/10174/19974engHerrera, J.M.; Salgueiro, P. A.; Medinas, D.; Costa, P.; Encarnação, C.; Mira, A. 2016. Generalities of vertebrate responses to landscape composition and configuration gradients in a highly heterogeneous Mediterranean region. Journal of Biogeography, 43: 6: 1203-1214.1203-121443Journal of BiogeographyICAAMndndndndndamira@uevora.pt221doi:10.1111/jbi.12720Herrera, JoséSalgueiro, Pedro A.Medinas, DenisCosta, PedroEncarnação, CláudiaMira, Antónioinfo: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:RCAAP2024-01-03T19:09:37Zoai:dspace.uevora.pt:10174/19974Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:11:34.285279Repositório 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 |
Generalities of vertebrate responses to landscape composition and configuration gradients in a highly heterogeneous Mediterranean region |
title |
Generalities of vertebrate responses to landscape composition and configuration gradients in a highly heterogeneous Mediterranean region |
spellingShingle |
Generalities of vertebrate responses to landscape composition and configuration gradients in a highly heterogeneous Mediterranean region Herrera, José Agricultural countryside Conceptual models envioronmental gradients landscape modification Mediterranean Landscapes Multi-species conservation Species conservation |
title_short |
Generalities of vertebrate responses to landscape composition and configuration gradients in a highly heterogeneous Mediterranean region |
title_full |
Generalities of vertebrate responses to landscape composition and configuration gradients in a highly heterogeneous Mediterranean region |
title_fullStr |
Generalities of vertebrate responses to landscape composition and configuration gradients in a highly heterogeneous Mediterranean region |
title_full_unstemmed |
Generalities of vertebrate responses to landscape composition and configuration gradients in a highly heterogeneous Mediterranean region |
title_sort |
Generalities of vertebrate responses to landscape composition and configuration gradients in a highly heterogeneous Mediterranean region |
author |
Herrera, José |
author_facet |
Herrera, José Salgueiro, Pedro A. Medinas, Denis Costa, Pedro Encarnação, Cláudia Mira, António |
author_role |
author |
author2 |
Salgueiro, Pedro A. Medinas, Denis Costa, Pedro Encarnação, Cláudia Mira, António |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Herrera, José Salgueiro, Pedro A. Medinas, Denis Costa, Pedro Encarnação, Cláudia Mira, António |
dc.subject.por.fl_str_mv |
Agricultural countryside Conceptual models envioronmental gradients landscape modification Mediterranean Landscapes Multi-species conservation Species conservation |
topic |
Agricultural countryside Conceptual models envioronmental gradients landscape modification Mediterranean Landscapes Multi-species conservation Species conservation |
description |
Aim To examine the distributional patterns of vertebrates (including birds, bats, carnivores and lagomorphs) along landscape composition and configuration gradients to better understand the effects of landscape modification on occurrence patterns at both species and community level. Location The region of Alentejo, a forest-dominated area of southern Portugal. Methods The study area was framed using 1647 hexagonal plots, each of 259 ha in size. Composition and configuration gradients were obtained for each plot by integrating the proportions of the main land cover types and their configuration patterns using multivariate analyses. Species-specific vertebrate responses were investigated using data from 75 plots in which carnivores, bats and lagomorphs were sampled, and from 135 plots in the case of birds. Community- level responses were investigated through changes in species richness and beta-diversity in 57 plots where all vertebrate groups were simultaneously sampled. At the species-level, an information-theoretic approach was used to determine the effects of landscape gradients on species’ responses. At the community level, Mantel tests were used to determine between-plot differences in species composition using the Sørensen dissimilarity index. Results We found that the occurrence patterns of most vertebrate species were best predicted by composition-related gradients, although configuration gradients were also frequently included in species-specific occurrence models. We also found a weak correlation between species richness and most landscape gradients suggesting a turnover in the identity of species, something that was corroborated by the stronger correlation between environmental gradients and beta-diversity measures. The amount of forest cover and landscape complexity (estimated as the heterogeneity in the size and number of land cover types) were the main composition and configuration gradients determining vertebrate responses at both species and community level. Main conclusions Our work contributes to a more refined understanding of the mechanisms underlying species distributional patterns in real-world human-modified landscapes. By uncovering generalities of species with multiple ecological requirements and by describing the entire landscape mosaic through landscape gradients, we also suggest that our work greatly helps to fill the gap between existing conceptual landscape models aimed to understand species distributional patterns in human-modified landscapes. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-01T00:00:00Z 2017-01-23T17:39:44Z 2017-01-23 |
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/10174/19974 http://hdl.handle.net/10174/19974 |
url |
http://hdl.handle.net/10174/19974 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Herrera, J.M.; Salgueiro, P. A.; Medinas, D.; Costa, P.; Encarnação, C.; Mira, A. 2016. Generalities of vertebrate responses to landscape composition and configuration gradients in a highly heterogeneous Mediterranean region. Journal of Biogeography, 43: 6: 1203-1214. 1203-1214 43 Journal of Biogeography ICAAM nd nd nd nd nd amira@uevora.pt 221 doi:10.1111/jbi.12720 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Journal of Biogeography |
publisher.none.fl_str_mv |
Journal of Biogeography |
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 |
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1799136597791211520 |