Using graph theory to analyse and assess changes in Mediterranean woodland connectivity
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/31655 https://doi.org/10.1007/s10980-020-01014-8 |
Resumo: | Context The Portuguese montado is an agro-silvopastoral system, similar to the Spanish dehesa, known for its cultural, economic and ecological value. Despite its importance, contrasting processes such as land abandonment and land use intensification, together with several other factors, have been respon sible for montado degradation in the last decades. Biodiversitywise, assuring high levels of connectivity is vital for many species that, in turn, contribute to the natural processes on which a healthy and sustainable montado relies. Objectives To study the montado connectivity in the recent decades and infer what the changes represent to the short and medium dispersal species regarding habitat availability.Methods The study was conducted in an area delimited by biogeographic boundaries in Southern Portugal where montado is abundant. We used a graph theory based approach and montado maps of 1984, 1999 and 2014 derived from remote sensing. Results The results show a loss of montado associ ated to increasing fragmentation over time. This led to a global connectivity decrement likely to have nega tive implications for montado species. The most affected species are those more dependent on habitat characteristics, such as forest specialist birds, and those with low mobility that have lost great amounts of habitat not only due to montado loss but also due to the increasing fragmentation that makes suitable patches unreachable. Conclusions Given the montado environmental relevance, measures should be taken in order to stop its loss and preserve the core areas that have guaranteed the connectivity over time. |
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Using graph theory to analyse and assess changes in Mediterranean woodland connectivityMontadoConnectivitConeforRemote sensingLand cover changeLandscape dynamicsContext The Portuguese montado is an agro-silvopastoral system, similar to the Spanish dehesa, known for its cultural, economic and ecological value. Despite its importance, contrasting processes such as land abandonment and land use intensification, together with several other factors, have been respon sible for montado degradation in the last decades. Biodiversitywise, assuring high levels of connectivity is vital for many species that, in turn, contribute to the natural processes on which a healthy and sustainable montado relies. Objectives To study the montado connectivity in the recent decades and infer what the changes represent to the short and medium dispersal species regarding habitat availability.Methods The study was conducted in an area delimited by biogeographic boundaries in Southern Portugal where montado is abundant. We used a graph theory based approach and montado maps of 1984, 1999 and 2014 derived from remote sensing. Results The results show a loss of montado associ ated to increasing fragmentation over time. This led to a global connectivity decrement likely to have nega tive implications for montado species. The most affected species are those more dependent on habitat characteristics, such as forest specialist birds, and those with low mobility that have lost great amounts of habitat not only due to montado loss but also due to the increasing fragmentation that makes suitable patches unreachable. Conclusions Given the montado environmental relevance, measures should be taken in order to stop its loss and preserve the core areas that have guaranteed the connectivity over time.Springer2022-03-30T16:17:31Z2022-03-302020-04-25T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/31655http://hdl.handle.net/10174/31655https://doi.org/10.1007/s10980-020-01014-8porMachado, R., Godinho, S., Guiomar, N. et al. Using graph theory to analyse and assess changes in Mediterranean woodland connectivity. Landscape Ecol 35, 1291–1308 (2020)https://link.springer.com/article/10.1007/s10980-020-01014-8ndndndndnd212Rui, MachadoSérgio, GodinhoNuno, GuiomarArtur, GilJanez, Pirnatinfo:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T19:31:13Zoai:dspace.uevora.pt:10174/31655Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:20:39.479590Repositório 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 |
Using graph theory to analyse and assess changes in Mediterranean woodland connectivity |
title |
Using graph theory to analyse and assess changes in Mediterranean woodland connectivity |
spellingShingle |
Using graph theory to analyse and assess changes in Mediterranean woodland connectivity Rui, Machado Montado Connectivit Conefor Remote sensing Land cover change Landscape dynamics |
title_short |
Using graph theory to analyse and assess changes in Mediterranean woodland connectivity |
title_full |
Using graph theory to analyse and assess changes in Mediterranean woodland connectivity |
title_fullStr |
Using graph theory to analyse and assess changes in Mediterranean woodland connectivity |
title_full_unstemmed |
Using graph theory to analyse and assess changes in Mediterranean woodland connectivity |
title_sort |
Using graph theory to analyse and assess changes in Mediterranean woodland connectivity |
author |
Rui, Machado |
author_facet |
Rui, Machado Sérgio, Godinho Nuno, Guiomar Artur, Gil Janez, Pirnat |
author_role |
author |
author2 |
Sérgio, Godinho Nuno, Guiomar Artur, Gil Janez, Pirnat |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Rui, Machado Sérgio, Godinho Nuno, Guiomar Artur, Gil Janez, Pirnat |
dc.subject.por.fl_str_mv |
Montado Connectivit Conefor Remote sensing Land cover change Landscape dynamics |
topic |
Montado Connectivit Conefor Remote sensing Land cover change Landscape dynamics |
description |
Context The Portuguese montado is an agro-silvopastoral system, similar to the Spanish dehesa, known for its cultural, economic and ecological value. Despite its importance, contrasting processes such as land abandonment and land use intensification, together with several other factors, have been respon sible for montado degradation in the last decades. Biodiversitywise, assuring high levels of connectivity is vital for many species that, in turn, contribute to the natural processes on which a healthy and sustainable montado relies. Objectives To study the montado connectivity in the recent decades and infer what the changes represent to the short and medium dispersal species regarding habitat availability.Methods The study was conducted in an area delimited by biogeographic boundaries in Southern Portugal where montado is abundant. We used a graph theory based approach and montado maps of 1984, 1999 and 2014 derived from remote sensing. Results The results show a loss of montado associ ated to increasing fragmentation over time. This led to a global connectivity decrement likely to have nega tive implications for montado species. The most affected species are those more dependent on habitat characteristics, such as forest specialist birds, and those with low mobility that have lost great amounts of habitat not only due to montado loss but also due to the increasing fragmentation that makes suitable patches unreachable. Conclusions Given the montado environmental relevance, measures should be taken in order to stop its loss and preserve the core areas that have guaranteed the connectivity over time. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-04-25T00:00:00Z 2022-03-30T16:17:31Z 2022-03-30 |
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/10174/31655 http://hdl.handle.net/10174/31655 https://doi.org/10.1007/s10980-020-01014-8 |
url |
http://hdl.handle.net/10174/31655 https://doi.org/10.1007/s10980-020-01014-8 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Machado, R., Godinho, S., Guiomar, N. et al. Using graph theory to analyse and assess changes in Mediterranean woodland connectivity. Landscape Ecol 35, 1291–1308 (2020) https://link.springer.com/article/10.1007/s10980-020-01014-8 nd nd nd nd nd 212 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/embargoedAccess |
eu_rights_str_mv |
embargoedAccess |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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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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1799136688073605120 |