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Predation by the common kingfisher Alcedo atthis of non-native fish species during the winter

dc.contributor.authorGarcía, José Antonio
dc.contributor.authorHernández, Maria Ángeles
dc.contributor.authorNunes, Luísa
dc.contributor.authorSánchez-Sastre, Luis Fernando
dc.contributor.authorCasanueva, Patricia
dc.contributor.authorCampos, Francisco
dc.date.accessioned2023-01-31T17:11:58Z
dc.date.available2023-01-31T17:11:58Z
dc.date.issued2023
dc.description.abstractCapsule:ThewinterdietofCommonKingfishersAlcedoatthisusingtworiversincentralSpainwas 94.9% fish, all of which were non-native species. Aims: To determine the composition Common Kingfisher diet in an area recently colonized by non-native fish species, and to compare estimated prey size during the winter to that of fish fed to nestlings during the breeding season. Methods: The diet was studied by analysis of pellets collected from the River Duero (lentic, still water) and River Pisuerga (lotic, riverine) in central Spain. Fish size (total length and biomass) calculated from paired remains contained in each pellet. Results:Prey itemswerealmost exclusivelyfish(94.9%ofallprey),withasmallproportionofnonnative Red Swamp Crayfish Procambarus clarkii (4.9%) and aquatic insects (0.2%). The diet consisted of only five species of fish, all of which were non-native. The Common Bleak Alburnus alburnus and Eastern Mosquitofish Gambusia holbrooki were theprey captured most often in the River Pisuerga and River Duero, respectively. Estimated length of fish prey ranged from 1.5 to 10.5 cm, but 53.6% of individuals were between 3 and 5 cm. Mean biomass of the fish consumed was also small (1.08 g per fish). Mean values of both fish total length and biomass were lower than the measurements reported elsewhere in Europe during the breeding season. Conclusion: Native fish species have disappeared from the diet of Common Kingfishers in our study area, probably because the non-native species are more commonpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationGARCIA, Jose António [et al.] (2023) - Predation by the common kingfisher Alcedo atthis of non-native fish species during the winter. Bird Study. 69:3.4, p. 97-102. DOI 10.1080/00063657.2022.2162478pt_PT
dc.identifier.doi10.1080/00063657.2022.2162478pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.11/8289
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherBird Studypt_PT
dc.subjectInvasive Alcedo atthispt_PT
dc.titlePredation by the common kingfisher Alcedo atthis of non-native fish species during the winterpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceUKpt_PT
oaire.citation.endPage102pt_PT
oaire.citation.issue3-4pt_PT
oaire.citation.startPage97pt_PT
oaire.citation.titleBird Studypt_PT
oaire.citation.volume69pt_PT
person.familyNameNunes
person.givenNameLuisa
person.identifier.orcid0000-0002-3419-7804
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication39d9d5ee-b4f0-4cd2-abf2-ac709fb02981
relation.isAuthorOfPublication.latestForDiscovery39d9d5ee-b4f0-4cd2-abf2-ac709fb02981

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