Kelp and dolphin gulls cause perineal wounds in South American fur seal pups (Arctocephalus australis) at Guafo Island, Chilean Patagonia

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dc.contributor.authorSeguel, M.
dc.contributor.authorMuñoz, F.
dc.contributor.authorMontalva, F.
dc.contributor.authorPerez-Venegas, D.
dc.contributor.authorPavés, H.
dc.contributor.authorGottdenker, N.
dc.date.accessioned2018-01-05T18:36:31Z
dc.date.available2018-01-05T18:36:31Z
dc.date.issued2017-07
dc.descriptionIndexación: Scopus.es_CL
dc.description.abstractDuring five reproductive seasons, we documented the presence, extent and origin of perineal wounds in South American fur seal pups (Arctocephalus australis) on Guafo Island, Northern Chilean Patagonia. The seasonal prevalence of perineal wounds ranged from 5 to 9%, and new cases were more common at the end of the breeding season (February), when pups were on average two months old and were actively expelling hookworms (Uncinaria sp). Histologically, wounds corresponded to marked ulcerative lymphoplasmacytic and histiocytic dermatitis with granulation tissue and mixed bacterial colonies. In 2015 and 2017, kelp gulls (Larus dominicanus) and dolphin gulls (Leucophaeus scoresbii) were observed picking and wounding the perineal area of marked pups. This behaviour occurred more frequently after the pups’ defecation, when sea gulls engaged in consumption of pups’ faeces. The affected pups usually had moderate to marked hookworm infections along with bloody diarrhoea and anaemia. Pups with severe wounds (23% of affected animals) had swollen perineal areas and signs of secondary systemic bacterial infection. We propose that seagulls on Guafo Island have learned to consume remains of blood and parasites in the faeces of pups affected by hookworm infection, causing perineal wounds during this process. We conclude that this perineal wounding is an unintentional, occasional negative effect of an otherwise commensal gull–fur seal relationship.es_CL
dc.description.urihttp://rsos.royalsocietypublishing.org/content/4/7/170638
dc.identifier.citationRoyal Society Open Science, 4(7), art. no. 170638es_CL
dc.identifier.issn2054-5703
dc.identifier.otherDOI: 10.1098/rsos.170638
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/5039
dc.language.isoenes_CL
dc.publisherRoyal Society Publishinges_CL
dc.rights.licenseAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectArctocephalus Australises_CL
dc.subjectDolphin gulles_CL
dc.subjectFur seales_CL
dc.subjectHookwormes_CL
dc.subjectKelp gulles_CL
dc.subjectWoundes_CL
dc.titleKelp and dolphin gulls cause perineal wounds in South American fur seal pups (Arctocephalus australis) at Guafo Island, Chilean Patagoniaes_CL
dc.typeArtículoes_CL
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