Inter-insular variation of the diet of osprey Pandion haliaetus in the Canarian archipelago

We studied the diet of the osprey Pandion haliaetus in the Canary Islands during 1997-2008 using prey remains under perches and nests, and direct observations. We collected data both in breeding territories and in non-breeding areas. We counted a minimum of 307 fish individuals as prey remains (both...

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Detalles Bibliográficos
Autores: Siverio, Manuel, Rodríguez, Beneharo, Rodríguez, Airam, Siverio, Felipe
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/45132
Acceso en línea:http://hdl.handle.net/10261/45132
Access Level:acceso abierto
Palabra clave:Canary Islands
Diet
direct observations
Exocoetidae
osprey
Pandion haliaetus
prey remains
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spelling Inter-insular variation of the diet of osprey Pandion haliaetus in the Canarian archipelagoSiverio, ManuelRodríguez, BeneharoRodríguez, AiramSiverio, FelipeCanary IslandsDietdirect observationsExocoetidaeospreyPandion haliaetusprey remainsWe studied the diet of the osprey Pandion haliaetus in the Canary Islands during 1997-2008 using prey remains under perches and nests, and direct observations. We collected data both in breeding territories and in non-breeding areas. We counted a minimum of 307 fish individuals as prey remains (both during breeding and non-breeding seasons), and identified another 78 during 433 hours of field observations. According to our results, ospreys consumed at least 15 taxa belonging to 12 families. We found slight differences in the spatial (both intra and inter insular) and temporal diet composition. During the breeding season, the main prey species were flying fishes (belonging to the family Exocoetidae) and needlefishes (belonging to the family Belonidae) according to the two employed methods (i.e. prey remains and direct observations). In the non-breeding period, the diet was composed primarily of non-autochthones freshwater fishes such as common carp Cyprinus carpio and goldfish Carassius auratus. In general, the diet diversity was similar to the diversity reported in other breeding populations of subtropical areas, and being less diverse than those of tropical areas. More precise studies evaluating the effect of fish availability in marine reserves, overfishing areas or fish farms on the demographic parameters are necessary for the management and conservation of threatened Canarian ospreysPeer reviewedNordic Council for Wildlife Research201220122011info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/45132reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.2981/10-004info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/451322026-05-22T06:33:51Z
dc.title.none.fl_str_mv Inter-insular variation of the diet of osprey Pandion haliaetus in the Canarian archipelago
title Inter-insular variation of the diet of osprey Pandion haliaetus in the Canarian archipelago
spellingShingle Inter-insular variation of the diet of osprey Pandion haliaetus in the Canarian archipelago
Siverio, Manuel
Canary Islands
Diet
direct observations
Exocoetidae
osprey
Pandion haliaetus
prey remains
title_short Inter-insular variation of the diet of osprey Pandion haliaetus in the Canarian archipelago
title_full Inter-insular variation of the diet of osprey Pandion haliaetus in the Canarian archipelago
title_fullStr Inter-insular variation of the diet of osprey Pandion haliaetus in the Canarian archipelago
title_full_unstemmed Inter-insular variation of the diet of osprey Pandion haliaetus in the Canarian archipelago
title_sort Inter-insular variation of the diet of osprey Pandion haliaetus in the Canarian archipelago
dc.creator.none.fl_str_mv Siverio, Manuel
Rodríguez, Beneharo
Rodríguez, Airam
Siverio, Felipe
author Siverio, Manuel
author_facet Siverio, Manuel
Rodríguez, Beneharo
Rodríguez, Airam
Siverio, Felipe
author_role author
author2 Rodríguez, Beneharo
Rodríguez, Airam
Siverio, Felipe
author2_role author
author
author
dc.subject.none.fl_str_mv Canary Islands
Diet
direct observations
Exocoetidae
osprey
Pandion haliaetus
prey remains
topic Canary Islands
Diet
direct observations
Exocoetidae
osprey
Pandion haliaetus
prey remains
description We studied the diet of the osprey Pandion haliaetus in the Canary Islands during 1997-2008 using prey remains under perches and nests, and direct observations. We collected data both in breeding territories and in non-breeding areas. We counted a minimum of 307 fish individuals as prey remains (both during breeding and non-breeding seasons), and identified another 78 during 433 hours of field observations. According to our results, ospreys consumed at least 15 taxa belonging to 12 families. We found slight differences in the spatial (both intra and inter insular) and temporal diet composition. During the breeding season, the main prey species were flying fishes (belonging to the family Exocoetidae) and needlefishes (belonging to the family Belonidae) according to the two employed methods (i.e. prey remains and direct observations). In the non-breeding period, the diet was composed primarily of non-autochthones freshwater fishes such as common carp Cyprinus carpio and goldfish Carassius auratus. In general, the diet diversity was similar to the diversity reported in other breeding populations of subtropical areas, and being less diverse than those of tropical areas. More precise studies evaluating the effect of fish availability in marine reserves, overfishing areas or fish farms on the demographic parameters are necessary for the management and conservation of threatened Canarian ospreys
publishDate 2011
dc.date.none.fl_str_mv 2011
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/45132
url http://hdl.handle.net/10261/45132
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.2981/10-004
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Nordic Council for Wildlife Research
publisher.none.fl_str_mv Nordic Council for Wildlife Research
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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