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Incubation capacity limits clutch size in south polar skuas

Cited 5 time in wos
Cited 4 time in scopus

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DC Field Value Language
dc.contributor.authorChoy, Eun-Jung-
dc.contributor.authorKim, Jeong Hoon-
dc.contributor.authorPark, Hyun-
dc.contributor.authorYoo, Jeong-Chil-
dc.contributor.authorAhn, In-Young-
dc.coverage.spatialAntarctica-
dc.date.accessioned2018-03-20T13:50:07Z-
dc.date.available2018-03-20T13:50:07Z-
dc.date.issued2010-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/6326-
dc.description.abstractThe incubation-limitation hypothesis suggests that clutch size in some birds is limited by incubation capacity. However, this remains disputed amongst ornithologists. This study aimed to test whether incubation capacity limits the maximum clutch size to two eggs in south polar skuas (Catharacta maccormicki Saunders) by comparing the egg and nest temperatures as well as hatchability between two-egg and three-egg clutches. Although the vast majority of clutches contained one or two eggs, four naturally occurring three-egg clutches were found at Barton Peninsula, King George Island over three breeding seasons (2004?2005, 2005?2006 and 2006?2007). Regardless of clutch size, all incubating parents exhibited two discernible brood patches. The mean egg and nest temperatures of the three-egg clutches were significantly lower than were those of the two-egg clutches. The accumulated time that egg temperature decreased below 30℃ in three-egg clutches was approximately eight times longer than that in two-egg clutches. The hatchability of natural one-egg (89.5%) and two-egg clutches (95.4%) were significantly higher than that of the three-egg clutches, which was zero. Our results suggest that the maximum clutch size in south polar skuas is probably restricted by incubation capacity.-
dc.languageEnglish-
dc.publisherCambridge-
dc.subjectEnvironmental Sciences & Ecology-
dc.subjectPhysical Geography-
dc.subjectGeology-
dc.titleIncubation capacity limits clutch size in south polar skuas-
dc.title.alternative포란능력이 남극도둑갈매기의 한배산란수를 제한한다-
dc.typeArticle-
dc.identifier.bibliographicCitationChoy, Eun-Jung, et al. 2010. "Incubation capacity limits clutch size in south polar skuas". <em>ANTARCTIC SCIENCE</em>, 22(1): 19-24.-
dc.citation.titleANTARCTIC SCIENCE-
dc.citation.volume22-
dc.citation.number1-
dc.identifier.doi10.1017/S0954102009990393-
dc.citation.startPage19-
dc.citation.endPage24-
dc.description.articleClassificationSCI-
dc.description.jcrRateJCR 2008:6.534823731728288-
dc.subject.keywordAntarctica-
dc.subject.keywordCatharacta maccormicki-
dc.subject.keywordegg temperature-
dc.subject.keywordhatchability-
dc.subject.keywordnest temperature-
dc.identifier.localId2010-0009-
dc.identifier.scopusid2-s2.0-76849086910-
dc.identifier.wosid000274868100004-
Appears in Collections  
2008-2010, Studies on Polar organisms and ecosystem changes (08-10) / Ahn, In-Young (PE09040, PE10040, PE08040)
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