Mass on arrival of rockhopper penguins at Marion Island correlated with breeding success

Simple item page
dc.contributor.authorCrawford, R J M
dc.contributor.authorMakhado, A B
dc.contributor.authorUpfold, L
dc.contributor.authorDyer, B M
dc.date.accessioned2018-02-12T10:25:55Z
dc.date.available2018-02-12T10:25:55Z
dc.date.issued2008
dc.date.updated2016-01-22T08:22:53Z
dc.description.abstractFor rockhopper penguins Eudyptes chrysocome at Marion Island, there were significant decreases over time in the numbers breeding and breeding success at three monitored colonies from 1985/1986 to 2006/2007, and in mass on arrival for breeding of both males and females from 1994/1995 to 2007/2008. Breeding success decreased by 0.15 chicks pair−1 y−1 over 22 years and was significantly correlated with mass on arrival of males and females. Survival of chicks at the guard stage was low in the late 1990s; hatching success decreased in the early 2000s. It is thought that an increasingly poor parental condition caused birds to abandon breeding at a progressively early stage. Parental condition is influenced by feeding opportunities at overwintering grounds, which have probably been altered by global climate.
dc.identifierhttp://dx.doi.org/10.2989/AJMS.2008.30.1.19.469
dc.identifier.apacitationCrawford, R. J. M., Makhado, A. B., Upfold, L., & Dyer, B. M. (2008). Mass on arrival of rockhopper penguins at Marion Island correlated with breeding success. <i>African Journal of Marine Science</i>, http://hdl.handle.net/11427/27541en_ZA
dc.identifier.chicagocitationCrawford, R J M, A B Makhado, L Upfold, and B M Dyer "Mass on arrival of rockhopper penguins at Marion Island correlated with breeding success." <i>African Journal of Marine Science</i> (2008) http://hdl.handle.net/11427/27541en_ZA
dc.identifier.citationCrawford, R. J. M., Makhado, A. B., Upfold, L., & Dyer, B. M. (2008). Mass on arrival of rockhopper penguins at Marion Island correlated with breeding success. African Journal of Marine Science, 30(1), 185-188.
dc.identifier.ris TY - Journal Article AU - Crawford, R J M AU - Makhado, A B AU - Upfold, L AU - Dyer, B M AB - For rockhopper penguins Eudyptes chrysocome at Marion Island, there were significant decreases over time in the numbers breeding and breeding success at three monitored colonies from 1985/1986 to 2006/2007, and in mass on arrival for breeding of both males and females from 1994/1995 to 2007/2008. Breeding success decreased by 0.15 chicks pair−1 y−1 over 22 years and was significantly correlated with mass on arrival of males and females. Survival of chicks at the guard stage was low in the late 1990s; hatching success decreased in the early 2000s. It is thought that an increasingly poor parental condition caused birds to abandon breeding at a progressively early stage. Parental condition is influenced by feeding opportunities at overwintering grounds, which have probably been altered by global climate. DA - 2008 DB - OpenUCT DP - University of Cape Town J1 - African Journal of Marine Science LK - https://open.uct.ac.za PB - University of Cape Town PY - 2008 T1 - Mass on arrival of rockhopper penguins at Marion Island correlated with breeding success TI - Mass on arrival of rockhopper penguins at Marion Island correlated with breeding success UR - http://hdl.handle.net/11427/27541 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/27541
dc.identifier.vancouvercitationCrawford RJM, Makhado AB, Upfold L, Dyer BM. Mass on arrival of rockhopper penguins at Marion Island correlated with breeding success. African Journal of Marine Science. 2008; http://hdl.handle.net/11427/27541.en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Biological Sciencesen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.sourceAfrican Journal of Marine Science
dc.source.urihttp://www.tandfonline.com/loi/tams20
dc.subject.otherbreeding success
dc.subject.otherclimate change
dc.subject.otherEudyptes chrysocome
dc.subject.otherparental condition
dc.subject.otherrockhopper penguin
dc.subject.othersub-Antarctic
dc.titleMass on arrival of rockhopper penguins at Marion Island correlated with breeding success
dc.typeJournal Article
uct.type.filetypeText
uct.type.filetypeImage
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Crawford_Article_2008.pdf
Size:
318.03 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.72 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Journal Articles