Fine-scale population genetic structure and short-range sex-biased dispersal in a solitary carnivore, Lutra lutra
Autor(a) principal: | |
---|---|
Data de Publicação: | 2013 |
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/10174/10067 https://doi.org/10.1644/12-MAMM-A-171.1 |
Resumo: | The genetic structure of animal populations is influenced by, among other factors, dispersal and relatedness. Limited dispersal may cause local spatial restrictions in gene flow, which can have important management and conservation implications. We used radiotracking and genetic data to verify the existence of a spatial structure in relatedness within a resident native Eurasian otter (Lutra lutra) population at a fine spatio-temporal scale, and to better understand dispersal in this species. We obtained 51 individual genotypes from 65 biological samples collected from 2007 to 2010 in an area of southern Portugal of 1,125 km2. In addition, we radiotracked 7 (2female, 5 male) young otters. Relatedness estimates and geographic distances were inversely related in females, whereas the relationship was not significant in males. Among the tracked subadult animals, only males dispersed, covering on average a distance of 21 km (SD = 6 km; range: 11–25 km). Both genetic and field data therefore revealed male-biased dispersal and suggested female philopatry. The observed overall pattern of genetic structuring was up to a scale of 21 km, although no putative landscape barriers were present. These findings concur with the few others previously available, indicating how restricted contemporary gene flow may occur at fine spatiotemporal scales within continuous carnivore populations, and can therefore constitute a cryptic cause of risk (being driven by mechanisms not necessarily related to the movement capabilities of the species), adding complexity to the conservation and management of these animals. |
id |
RCAP_d3ceb29e650e6329992f0a0dddd59019 |
---|---|
oai_identifier_str |
oai:dspace.uevora.pt:10174/10067 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Fine-scale population genetic structure and short-range sex-biased dispersal in a solitary carnivore, Lutra lutraConservation geneticsdispersal distancesEurasian otterisolation by distanceradiotrackingrestricted gene flowspatial relatedness structurespatiotemporal scaleThe genetic structure of animal populations is influenced by, among other factors, dispersal and relatedness. Limited dispersal may cause local spatial restrictions in gene flow, which can have important management and conservation implications. We used radiotracking and genetic data to verify the existence of a spatial structure in relatedness within a resident native Eurasian otter (Lutra lutra) population at a fine spatio-temporal scale, and to better understand dispersal in this species. We obtained 51 individual genotypes from 65 biological samples collected from 2007 to 2010 in an area of southern Portugal of 1,125 km2. In addition, we radiotracked 7 (2female, 5 male) young otters. Relatedness estimates and geographic distances were inversely related in females, whereas the relationship was not significant in males. Among the tracked subadult animals, only males dispersed, covering on average a distance of 21 km (SD = 6 km; range: 11–25 km). Both genetic and field data therefore revealed male-biased dispersal and suggested female philopatry. The observed overall pattern of genetic structuring was up to a scale of 21 km, although no putative landscape barriers were present. These findings concur with the few others previously available, indicating how restricted contemporary gene flow may occur at fine spatiotemporal scales within continuous carnivore populations, and can therefore constitute a cryptic cause of risk (being driven by mechanisms not necessarily related to the movement capabilities of the species), adding complexity to the conservation and management of these animals.Journal of Mammalogy2014-01-27T14:40:59Z2014-01-272013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/10067http://hdl.handle.net/10174/10067https://doi.org/10.1644/12-MAMM-A-171.1engQuaglietta, L.; Fonseca, V; Hájkova, P.; Mira, A. & Boitani, L. (2013). Fine-scale population genetic structure and short-range sex-biased dispersal in a solitary carnivore, Lutra lutra. Journal of Mammalogy. 94:561-571. DOI: 10.1644/12-MAMM-A-171.1561-57194Journal of MammalogyICAAM; CIBIO-UEndndndamira@uevora.ptnd221Quaglietta, LorenzoFonseca, VaniaHájková, PedtraMira, AntónioBoitani, Luigiinfo: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:RCAAP2024-01-03T18:52:31Zoai:dspace.uevora.pt:10174/10067Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:04:00.373399Repositório 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 |
Fine-scale population genetic structure and short-range sex-biased dispersal in a solitary carnivore, Lutra lutra |
title |
Fine-scale population genetic structure and short-range sex-biased dispersal in a solitary carnivore, Lutra lutra |
spellingShingle |
Fine-scale population genetic structure and short-range sex-biased dispersal in a solitary carnivore, Lutra lutra Quaglietta, Lorenzo Conservation genetics dispersal distances Eurasian otter isolation by distance radiotracking restricted gene flow spatial relatedness structure spatiotemporal scale |
title_short |
Fine-scale population genetic structure and short-range sex-biased dispersal in a solitary carnivore, Lutra lutra |
title_full |
Fine-scale population genetic structure and short-range sex-biased dispersal in a solitary carnivore, Lutra lutra |
title_fullStr |
Fine-scale population genetic structure and short-range sex-biased dispersal in a solitary carnivore, Lutra lutra |
title_full_unstemmed |
Fine-scale population genetic structure and short-range sex-biased dispersal in a solitary carnivore, Lutra lutra |
title_sort |
Fine-scale population genetic structure and short-range sex-biased dispersal in a solitary carnivore, Lutra lutra |
author |
Quaglietta, Lorenzo |
author_facet |
Quaglietta, Lorenzo Fonseca, Vania Hájková, Pedtra Mira, António Boitani, Luigi |
author_role |
author |
author2 |
Fonseca, Vania Hájková, Pedtra Mira, António Boitani, Luigi |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Quaglietta, Lorenzo Fonseca, Vania Hájková, Pedtra Mira, António Boitani, Luigi |
dc.subject.por.fl_str_mv |
Conservation genetics dispersal distances Eurasian otter isolation by distance radiotracking restricted gene flow spatial relatedness structure spatiotemporal scale |
topic |
Conservation genetics dispersal distances Eurasian otter isolation by distance radiotracking restricted gene flow spatial relatedness structure spatiotemporal scale |
description |
The genetic structure of animal populations is influenced by, among other factors, dispersal and relatedness. Limited dispersal may cause local spatial restrictions in gene flow, which can have important management and conservation implications. We used radiotracking and genetic data to verify the existence of a spatial structure in relatedness within a resident native Eurasian otter (Lutra lutra) population at a fine spatio-temporal scale, and to better understand dispersal in this species. We obtained 51 individual genotypes from 65 biological samples collected from 2007 to 2010 in an area of southern Portugal of 1,125 km2. In addition, we radiotracked 7 (2female, 5 male) young otters. Relatedness estimates and geographic distances were inversely related in females, whereas the relationship was not significant in males. Among the tracked subadult animals, only males dispersed, covering on average a distance of 21 km (SD = 6 km; range: 11–25 km). Both genetic and field data therefore revealed male-biased dispersal and suggested female philopatry. The observed overall pattern of genetic structuring was up to a scale of 21 km, although no putative landscape barriers were present. These findings concur with the few others previously available, indicating how restricted contemporary gene flow may occur at fine spatiotemporal scales within continuous carnivore populations, and can therefore constitute a cryptic cause of risk (being driven by mechanisms not necessarily related to the movement capabilities of the species), adding complexity to the conservation and management of these animals. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-01-01T00:00:00Z 2014-01-27T14:40:59Z 2014-01-27 |
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/10174/10067 http://hdl.handle.net/10174/10067 https://doi.org/10.1644/12-MAMM-A-171.1 |
url |
http://hdl.handle.net/10174/10067 https://doi.org/10.1644/12-MAMM-A-171.1 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Quaglietta, L.; Fonseca, V; Hájkova, P.; Mira, A. & Boitani, L. (2013). Fine-scale population genetic structure and short-range sex-biased dispersal in a solitary carnivore, Lutra lutra. Journal of Mammalogy. 94:561-571. DOI: 10.1644/12-MAMM-A-171.1 561-571 94 Journal of Mammalogy ICAAM; CIBIO-UE nd nd nd amira@uevora.pt nd 221 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Journal of Mammalogy |
publisher.none.fl_str_mv |
Journal of Mammalogy |
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 |
|
_version_ |
1799136523814174720 |