Do diurnal migrants follow the Guadiana River when crossing dry sectors of SW Iberia?

Detalhes bibliográficos
Autor(a) principal: Catry, Paulo
Data de Publicação: 2009
Outros Autores: Campos, Ana, Miravent, Vanda, Rabaça, João E.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10174/6753
Resumo: Little is known on the importance of water courses as migratory corridors. Here, we present the results of an investigation on the movements of diurnal migrants associated with the Guadiana River when crossing dry and inhospitable regions of southern Iberia. Direct observations were carried out along the river and at control sites away from it, in late August-November 2006. The number of birds seen was extremely small (<< 1 individual per hour for most species) and most records probably involved individuals in local movements, as indicated from similar rates of birds moving up and downriver. The only exceptions were hirundines which, within our study area, were strongly associated with the Guadiana both when foraging and when engaged in medium to long-distance daily movements. House Martins Delichon urbicum were particularly numerous, and 98.7% of the birds seen in directed movement (n = 4122) were flying above the river. However, passing hirundines (mostly Barn Swallow Hirundo rustica and Sand Martins Riparia riparia) were scarce and did not show the same degree of association with the Guadiana. Our results suggest that there is no significant migratory corridor along the lower Guadiana during summer-autumn, but hirundines strongly associate with this river when foraging and when commuting between foraging grounds and roosts.
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spelling Do diurnal migrants follow the Guadiana River when crossing dry sectors of SW Iberia?migrationleading linesDelichonHirundoLittle is known on the importance of water courses as migratory corridors. Here, we present the results of an investigation on the movements of diurnal migrants associated with the Guadiana River when crossing dry and inhospitable regions of southern Iberia. Direct observations were carried out along the river and at control sites away from it, in late August-November 2006. The number of birds seen was extremely small (<< 1 individual per hour for most species) and most records probably involved individuals in local movements, as indicated from similar rates of birds moving up and downriver. The only exceptions were hirundines which, within our study area, were strongly associated with the Guadiana both when foraging and when engaged in medium to long-distance daily movements. House Martins Delichon urbicum were particularly numerous, and 98.7% of the birds seen in directed movement (n = 4122) were flying above the river. However, passing hirundines (mostly Barn Swallow Hirundo rustica and Sand Martins Riparia riparia) were scarce and did not show the same degree of association with the Guadiana. Our results suggest that there is no significant migratory corridor along the lower Guadiana during summer-autumn, but hirundines strongly associate with this river when foraging and when commuting between foraging grounds and roosts.SPEA, Lisboa2012-12-10T11:42:24Z2012-12-102009-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/6753http://hdl.handle.net/10174/6753engCatry P, Campos A, Miravent V & Rabaça JE (2009) Do diurnal migrants follow the Guadiana River when crossing dry sectors of SW Iberia? Airo 19: 27-34.ICAAMndndndjrabaca@uevora.pt221Catry, PauloCampos, AnaMiravent, VandaRabaça, João E.info: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:RCAAP2024-01-03T18:46:26Zoai:dspace.uevora.pt:10174/6753Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:01:28.205482Repositório 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 Do diurnal migrants follow the Guadiana River when crossing dry sectors of SW Iberia?
title Do diurnal migrants follow the Guadiana River when crossing dry sectors of SW Iberia?
spellingShingle Do diurnal migrants follow the Guadiana River when crossing dry sectors of SW Iberia?
Catry, Paulo
migration
leading lines
Delichon
Hirundo
title_short Do diurnal migrants follow the Guadiana River when crossing dry sectors of SW Iberia?
title_full Do diurnal migrants follow the Guadiana River when crossing dry sectors of SW Iberia?
title_fullStr Do diurnal migrants follow the Guadiana River when crossing dry sectors of SW Iberia?
title_full_unstemmed Do diurnal migrants follow the Guadiana River when crossing dry sectors of SW Iberia?
title_sort Do diurnal migrants follow the Guadiana River when crossing dry sectors of SW Iberia?
author Catry, Paulo
author_facet Catry, Paulo
Campos, Ana
Miravent, Vanda
Rabaça, João E.
author_role author
author2 Campos, Ana
Miravent, Vanda
Rabaça, João E.
author2_role author
author
author
dc.contributor.author.fl_str_mv Catry, Paulo
Campos, Ana
Miravent, Vanda
Rabaça, João E.
dc.subject.por.fl_str_mv migration
leading lines
Delichon
Hirundo
topic migration
leading lines
Delichon
Hirundo
description Little is known on the importance of water courses as migratory corridors. Here, we present the results of an investigation on the movements of diurnal migrants associated with the Guadiana River when crossing dry and inhospitable regions of southern Iberia. Direct observations were carried out along the river and at control sites away from it, in late August-November 2006. The number of birds seen was extremely small (<< 1 individual per hour for most species) and most records probably involved individuals in local movements, as indicated from similar rates of birds moving up and downriver. The only exceptions were hirundines which, within our study area, were strongly associated with the Guadiana both when foraging and when engaged in medium to long-distance daily movements. House Martins Delichon urbicum were particularly numerous, and 98.7% of the birds seen in directed movement (n = 4122) were flying above the river. However, passing hirundines (mostly Barn Swallow Hirundo rustica and Sand Martins Riparia riparia) were scarce and did not show the same degree of association with the Guadiana. Our results suggest that there is no significant migratory corridor along the lower Guadiana during summer-autumn, but hirundines strongly associate with this river when foraging and when commuting between foraging grounds and roosts.
publishDate 2009
dc.date.none.fl_str_mv 2009-01-01T00:00:00Z
2012-12-10T11:42:24Z
2012-12-10
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/10174/6753
http://hdl.handle.net/10174/6753
url http://hdl.handle.net/10174/6753
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Catry P, Campos A, Miravent V & Rabaça JE (2009) Do diurnal migrants follow the Guadiana River when crossing dry sectors of SW Iberia? Airo 19: 27-34.
ICAAM
nd
nd
nd
jrabaca@uevora.pt
221
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv SPEA, Lisboa
publisher.none.fl_str_mv SPEA, Lisboa
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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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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