Environmental influences on Adelie penguin breeding schedules, endocrinology, and chick survival

Simple item page
dc.contributor.authorNinnes, Calum Edward
dc.contributor.authorWaas, Joseph R.
dc.contributor.authorLing, Nicholas
dc.contributor.authorNakagawa, Shinichi
dc.contributor.authorBanks, Jonathan C.
dc.contributor.authorBell, Dudley G.
dc.contributor.authorBright, A.
dc.contributor.authorCarey, P.G.
dc.contributor.authorChandler, J.
dc.contributor.authorHudson, Q.J.
dc.contributor.authorIngram, J.R.
dc.contributor.authorLyall, K.
dc.contributor.authorMorgan, Dai K.J.
dc.contributor.authorStevens, Mark I.
dc.contributor.authorWallace, J.
dc.contributor.authorMöstl, E.
dc.coverage.spatialUnited Statesen_NZ
dc.date.accessioned2011-07-01T03:18:17Z
dc.date.available2011-07-01T03:18:17Z
dc.date.issued2011
dc.description.abstractTo understand how the social and physical environment influences behaviour, reproduction and survival, studies of underlying hormonal processes are crucial; in particular, interactions between stress and reproductive responses may have critical influences on breeding schedules. Several authors have examined the timing of breeding in relation to environmental stimuli, while others have independently described endocrine profiles. However, few studies have simultaneously measured endocrine profiles, breeding behaviour, and offspring survival across seasons. We measured sex and stress hormone concentrations (oestrogens, testosterone, and corticosterone), timing of breeding, and chick survival, in Adelie penguins (Pygoscelis adeliae) at two colonies in two different years. Clutch initiation at Cape Bird South (CBS; year 1, 14,000 pairs) occurred later than at Cape Crozier East (CCE; year 2, 25,000 pairs); however, breeding was more synchronous at CBS. This pattern was probably generated by the persistence of extensive sea ice at CBS (year 1). Higher corticosterone metabolite and lower sex hormone concentrations at CBS correlated with later breeding and lower chick survival compared to at CCE – again, a likely consequence of sea ice conditions. Within colonies, sub-colony size (S, 50–100; M, 200–300; L, 500–600; XL, >1000 pairs) did not influence the onset or synchrony of breeding, chick survival, or hormone concentrations. We showed that the endocrine profiles of breeding Adelie penguins can differ markedly between years and/or colonies, and that combining measures of endocrinology, behaviour, and offspring survival can reveal the mechanisms and consequences that different environmental conditions can have on breeding ecology.en_NZ
dc.identifier.citationNinnes, C.E., Waas, J.R., Ling, N., Nakagawa, S., Banks, J.C.,… Möstl, E. (2011). Environmental influences on Adelie penguin breeding schedules, endocrinology, and chick survival. General and Comparative Endocrinology, 173(1), 139-147.en_NZ
dc.identifier.doi10.1016/j.ygcen.2011.05.006en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/5439
dc.language.isoen
dc.publisherElsevieren_NZ
dc.relation.isPartOfGeneral and Comparative Endocrinologyen_NZ
dc.relation.urihttp://www.sciencedirect.com/science/article/pii/S001664801100205Xen_NZ
dc.subjectAdelie penguinen_NZ
dc.subjectbreeding schedulesen_NZ
dc.subjectcorticosteroneen_NZ
dc.subjecttestosteroneen_NZ
dc.subjectoestrogensen_NZ
dc.subjectsea iceen_NZ
dc.titleEnvironmental influences on Adelie penguin breeding schedules, endocrinology, and chick survivalen_NZ
dc.typeJournal Articleen_NZ
pubs.begin-page139en_NZ
pubs.elements-id36029
pubs.end-page147en_NZ
pubs.issue1en_NZ
pubs.volume173en_NZ
Files
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Name: license.txt
Size: 1.71 KB
Kind: License
Collections
Science and Engineering Papers