MODELLING OWL MORTALITY ON ROADS OF ALENTEJO (SOUTHERN PORTUGAL)
Autor(a) principal: | |
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Data de Publicação: | 2008 |
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/10174/5129 |
Resumo: | Owls are one of the birds of prey most commonly found dead along roads. Thus, we investigated the importance of 22 environmental variables on the owl casualties and developed predictive models to estimate the likelihood of owl-vehicle collisions in Alentejo, southern Portugal. We recorded 123 corpses of three owl species, the Barn Owl Tyto alba made up 43% (n=53) of the road-kills, followed by the Little Owl Athene noctua (29%, n=36) and the Tawny Owl Strix aluco (28%, n=34), along 314 km of local roads on a two week basis from August to November 2004. Topography and land use explained the occurrence of owl road kills. Predictive models allowed the identification of several hotspots of owl mortality where a set of combined mitigation measures should be applied to reduce owl mortality. We recommend management of road verges vegetation, implementation of non-transparent screens on roadsides, removal of structures that act as perching sites, and lowering the traffic speed limits. |
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MODELLING OWL MORTALITY ON ROADS OF ALENTEJO (SOUTHERN PORTUGAL)Road-killsOwlsPortugalModellingOwls are one of the birds of prey most commonly found dead along roads. Thus, we investigated the importance of 22 environmental variables on the owl casualties and developed predictive models to estimate the likelihood of owl-vehicle collisions in Alentejo, southern Portugal. We recorded 123 corpses of three owl species, the Barn Owl Tyto alba made up 43% (n=53) of the road-kills, followed by the Little Owl Athene noctua (29%, n=36) and the Tawny Owl Strix aluco (28%, n=34), along 314 km of local roads on a two week basis from August to November 2004. Topography and land use explained the occurrence of owl road kills. Predictive models allowed the identification of several hotspots of owl mortality where a set of combined mitigation measures should be applied to reduce owl mortality. We recommend management of road verges vegetation, implementation of non-transparent screens on roadsides, removal of structures that act as perching sites, and lowering the traffic speed limits.SPEA2012-06-15T11:15:45Z2012-06-152008-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/5129http://hdl.handle.net/10174/5129engSilva, C.; Grilo, C. & A. Mira (2008). Modelling owl mortality on roads of Alentejo (southern Portugal). Airo, 18:3-12;3-1218AiroICAAMndnda221Silva, ClaraGrilo, ClaraMira, 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:RCAAP2024-01-03T18:43:33Zoai:dspace.uevora.pt:10174/5129Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:00:11.520179Repositório 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 |
MODELLING OWL MORTALITY ON ROADS OF ALENTEJO (SOUTHERN PORTUGAL) |
title |
MODELLING OWL MORTALITY ON ROADS OF ALENTEJO (SOUTHERN PORTUGAL) |
spellingShingle |
MODELLING OWL MORTALITY ON ROADS OF ALENTEJO (SOUTHERN PORTUGAL) Silva, Clara Road-kills Owls Portugal Modelling |
title_short |
MODELLING OWL MORTALITY ON ROADS OF ALENTEJO (SOUTHERN PORTUGAL) |
title_full |
MODELLING OWL MORTALITY ON ROADS OF ALENTEJO (SOUTHERN PORTUGAL) |
title_fullStr |
MODELLING OWL MORTALITY ON ROADS OF ALENTEJO (SOUTHERN PORTUGAL) |
title_full_unstemmed |
MODELLING OWL MORTALITY ON ROADS OF ALENTEJO (SOUTHERN PORTUGAL) |
title_sort |
MODELLING OWL MORTALITY ON ROADS OF ALENTEJO (SOUTHERN PORTUGAL) |
author |
Silva, Clara |
author_facet |
Silva, Clara Grilo, Clara Mira, António |
author_role |
author |
author2 |
Grilo, Clara Mira, António |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Silva, Clara Grilo, Clara Mira, António |
dc.subject.por.fl_str_mv |
Road-kills Owls Portugal Modelling |
topic |
Road-kills Owls Portugal Modelling |
description |
Owls are one of the birds of prey most commonly found dead along roads. Thus, we investigated the importance of 22 environmental variables on the owl casualties and developed predictive models to estimate the likelihood of owl-vehicle collisions in Alentejo, southern Portugal. We recorded 123 corpses of three owl species, the Barn Owl Tyto alba made up 43% (n=53) of the road-kills, followed by the Little Owl Athene noctua (29%, n=36) and the Tawny Owl Strix aluco (28%, n=34), along 314 km of local roads on a two week basis from August to November 2004. Topography and land use explained the occurrence of owl road kills. Predictive models allowed the identification of several hotspots of owl mortality where a set of combined mitigation measures should be applied to reduce owl mortality. We recommend management of road verges vegetation, implementation of non-transparent screens on roadsides, removal of structures that act as perching sites, and lowering the traffic speed limits. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-01-01T00:00:00Z 2012-06-15T11:15:45Z 2012-06-15 |
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/10174/5129 http://hdl.handle.net/10174/5129 |
url |
http://hdl.handle.net/10174/5129 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Silva, C.; Grilo, C. & A. Mira (2008). Modelling owl mortality on roads of Alentejo (southern Portugal). Airo, 18:3-12; 3-12 18 Airo ICAAM nd nd a 221 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
SPEA |
publisher.none.fl_str_mv |
SPEA |
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 |
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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 |
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1799136484527177728 |