The effects of a motorway on movement behavior and gene flow in a forest carnivore: joint evidence from road mortality, radio tracking and genetics
Autor(a) principal: | |
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Data de Publicação: | 2018 |
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/10174/24543 https://doi.org/doi.org/10-1016/j.landurbplan.2018.06.07 |
Resumo: | Roads represent barriers to animal movement due to physical obstruction, mortality, or behavioural avoidance. The population-level consequences of such constraints remain poorly understood, because successful crossings may be sufficient to counteract negative effects of fragmentation and isolation. Here we examine the individualand population-level barrier effects of a motorway on the common genet Genetta genetta, by combining long-term road mortality, radio tracking and population genetics data. We found 84 genets killed at roads, of which 68% were subadults, with a peak mortality during the dispersal period. The home ranges of resident adults often bordered the motorway, and their sizes were similar close to (314 ha, n=9) and far from (258 ha, n=10) the motorway. The crossing rate was much higher for dispersing subadults (4.1 crossings/100 nights, n=3) than for resident adults living near the motorway (0.2 crossings/100 nights, n=9), though the number of tracked subadults crossing the motorway was low. Genetic kinship analysis revealed seven crossings based on father offspring and half-sibling relationships. There was no significant genetic differentiation related to the motorway. The movement of residents were strongly constrained by the motorway, though gene flow mediated by successful crossings, particularly by subadults, likely prevented genetic differentiation. Genet movements across the motorway were probably facilitated by low traffic flow and the presence of crossing structures. Our study implies that evaluating mitigation strategies to reduce the barrier effects of roads would benefit from the integration of mortality, animal behaviour, and population genetics data, to increase effectiveness and avoid wasting scarce conservation resources. |
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The effects of a motorway on movement behavior and gene flow in a forest carnivore: joint evidence from road mortality, radio tracking and geneticsAnthropogenic barriersConservation geneticsGenetta genettaHabitat fragmentationMovement EcologyRoad EcologyRoads represent barriers to animal movement due to physical obstruction, mortality, or behavioural avoidance. The population-level consequences of such constraints remain poorly understood, because successful crossings may be sufficient to counteract negative effects of fragmentation and isolation. Here we examine the individualand population-level barrier effects of a motorway on the common genet Genetta genetta, by combining long-term road mortality, radio tracking and population genetics data. We found 84 genets killed at roads, of which 68% were subadults, with a peak mortality during the dispersal period. The home ranges of resident adults often bordered the motorway, and their sizes were similar close to (314 ha, n=9) and far from (258 ha, n=10) the motorway. The crossing rate was much higher for dispersing subadults (4.1 crossings/100 nights, n=3) than for resident adults living near the motorway (0.2 crossings/100 nights, n=9), though the number of tracked subadults crossing the motorway was low. Genetic kinship analysis revealed seven crossings based on father offspring and half-sibling relationships. There was no significant genetic differentiation related to the motorway. The movement of residents were strongly constrained by the motorway, though gene flow mediated by successful crossings, particularly by subadults, likely prevented genetic differentiation. Genet movements across the motorway were probably facilitated by low traffic flow and the presence of crossing structures. Our study implies that evaluating mitigation strategies to reduce the barrier effects of roads would benefit from the integration of mortality, animal behaviour, and population genetics data, to increase effectiveness and avoid wasting scarce conservation resources.Elsevier - Landscape and Urban Planning2019-02-11T17:25:06Z2019-02-112018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/24543http://hdl.handle.net/10174/24543https://doi.org/doi.org/10-1016/j.landurbplan.2018.06.07engCarvalho, F.; Lourenço, A.; Carvalho, R.; Alves, P.C.; Mira, A.; Pedro Beja, P. 2018. The effects of a motorway on movement behavior and gene flow in a forest carnivore: joint evidence from road mortality, radio tracking and genetics. Landscape and Urban Planning, 178:217-227217-227178Landscape and Urban PlanningICAAMndndndndndnd221Carvalho, FilipeLourenço, AndréCarvalho, RafaelAlves, Paulo CélioMira, 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:RCAAP2024-01-03T19:17:35Zoai:dspace.uevora.pt:10174/24543Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:15:10.471772Repositório 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 |
The effects of a motorway on movement behavior and gene flow in a forest carnivore: joint evidence from road mortality, radio tracking and genetics |
title |
The effects of a motorway on movement behavior and gene flow in a forest carnivore: joint evidence from road mortality, radio tracking and genetics |
spellingShingle |
The effects of a motorway on movement behavior and gene flow in a forest carnivore: joint evidence from road mortality, radio tracking and genetics Carvalho, Filipe Anthropogenic barriers Conservation genetics Genetta genetta Habitat fragmentation Movement Ecology Road Ecology |
title_short |
The effects of a motorway on movement behavior and gene flow in a forest carnivore: joint evidence from road mortality, radio tracking and genetics |
title_full |
The effects of a motorway on movement behavior and gene flow in a forest carnivore: joint evidence from road mortality, radio tracking and genetics |
title_fullStr |
The effects of a motorway on movement behavior and gene flow in a forest carnivore: joint evidence from road mortality, radio tracking and genetics |
title_full_unstemmed |
The effects of a motorway on movement behavior and gene flow in a forest carnivore: joint evidence from road mortality, radio tracking and genetics |
title_sort |
The effects of a motorway on movement behavior and gene flow in a forest carnivore: joint evidence from road mortality, radio tracking and genetics |
author |
Carvalho, Filipe |
author_facet |
Carvalho, Filipe Lourenço, André Carvalho, Rafael Alves, Paulo Célio Mira, António Beja, Pedro |
author_role |
author |
author2 |
Lourenço, André Carvalho, Rafael Alves, Paulo Célio Mira, António Beja, Pedro |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Carvalho, Filipe Lourenço, André Carvalho, Rafael Alves, Paulo Célio Mira, António Beja, Pedro |
dc.subject.por.fl_str_mv |
Anthropogenic barriers Conservation genetics Genetta genetta Habitat fragmentation Movement Ecology Road Ecology |
topic |
Anthropogenic barriers Conservation genetics Genetta genetta Habitat fragmentation Movement Ecology Road Ecology |
description |
Roads represent barriers to animal movement due to physical obstruction, mortality, or behavioural avoidance. The population-level consequences of such constraints remain poorly understood, because successful crossings may be sufficient to counteract negative effects of fragmentation and isolation. Here we examine the individualand population-level barrier effects of a motorway on the common genet Genetta genetta, by combining long-term road mortality, radio tracking and population genetics data. We found 84 genets killed at roads, of which 68% were subadults, with a peak mortality during the dispersal period. The home ranges of resident adults often bordered the motorway, and their sizes were similar close to (314 ha, n=9) and far from (258 ha, n=10) the motorway. The crossing rate was much higher for dispersing subadults (4.1 crossings/100 nights, n=3) than for resident adults living near the motorway (0.2 crossings/100 nights, n=9), though the number of tracked subadults crossing the motorway was low. Genetic kinship analysis revealed seven crossings based on father offspring and half-sibling relationships. There was no significant genetic differentiation related to the motorway. The movement of residents were strongly constrained by the motorway, though gene flow mediated by successful crossings, particularly by subadults, likely prevented genetic differentiation. Genet movements across the motorway were probably facilitated by low traffic flow and the presence of crossing structures. Our study implies that evaluating mitigation strategies to reduce the barrier effects of roads would benefit from the integration of mortality, animal behaviour, and population genetics data, to increase effectiveness and avoid wasting scarce conservation resources. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-01T00:00:00Z 2019-02-11T17:25:06Z 2019-02-11 |
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/10174/24543 http://hdl.handle.net/10174/24543 https://doi.org/doi.org/10-1016/j.landurbplan.2018.06.07 |
url |
http://hdl.handle.net/10174/24543 https://doi.org/doi.org/10-1016/j.landurbplan.2018.06.07 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Carvalho, F.; Lourenço, A.; Carvalho, R.; Alves, P.C.; Mira, A.; Pedro Beja, P. 2018. The effects of a motorway on movement behavior and gene flow in a forest carnivore: joint evidence from road mortality, radio tracking and genetics. Landscape and Urban Planning, 178:217-227 217-227 178 Landscape and Urban Planning ICAAM nd nd nd nd nd nd 221 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Elsevier - Landscape and Urban Planning |
publisher.none.fl_str_mv |
Elsevier - Landscape and Urban Planning |
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 |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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