Impacts of the introduced house mouse on the seabirds of Gough Island

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dc.contributor.advisorCooper, Johnen_ZA
dc.contributor.authorWanless, Ross Men_ZA
dc.date.accessioned2014-08-13T14:05:51Z
dc.date.available2014-08-13T14:05:51Z
dc.date.issued2007en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractIntroduced house mice Mus musculus on Gough Island were suspected of widespread predation of Atlantic Petrel Pterodroma incerta and Tristan Albatross Diomedia dabbenena chicks in 2000/01. Video cameras recorded six fatal attacks by mice on live, healthy Atlantic Petrel chicks in 2004. Crude estimates of annual breeding success were 47%, 7% and 7% in 2003, 2004 and 2006, respectively. Mouse attacks were responsible for most chick failures. Mice were largely responsible for high numbers of Tristan Albatross chick failures in 2004-2006. Total failures were significantly related to total attempts but breeding success and total attempts were not correlated. There was little spatio-temporal consistency in total failures or breeding success. No environmental or biological variables examined explained the pattern. Proximity to a failed nest was a significant predictor of failure, suggesting a localised effect possibly due to a few predatory mice. Fledgling production has decreased by 1% annually since 1979-1982. Annual adult Tristan Albatross survival and breeding success averages are extremely low (91% and 32%, respectively) and modelled population growth using these parameters was - 2.85% p.a. Either parameter will drive decreases so reversing negative trends requires improving both.en_ZA
dc.identifier.apacitationWanless, R. M. (2007). <i>Impacts of the introduced house mouse on the seabirds of Gough Island</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Biological Sciences. Retrieved from http://hdl.handle.net/11427/6159en_ZA
dc.identifier.chicagocitationWanless, Ross M. <i>"Impacts of the introduced house mouse on the seabirds of Gough Island."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2007. http://hdl.handle.net/11427/6159en_ZA
dc.identifier.citationWanless, R. 2007. Impacts of the introduced house mouse on the seabirds of Gough Island. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Wanless, Ross M AB - Introduced house mice Mus musculus on Gough Island were suspected of widespread predation of Atlantic Petrel Pterodroma incerta and Tristan Albatross Diomedia dabbenena chicks in 2000/01. Video cameras recorded six fatal attacks by mice on live, healthy Atlantic Petrel chicks in 2004. Crude estimates of annual breeding success were 47%, 7% and 7% in 2003, 2004 and 2006, respectively. Mouse attacks were responsible for most chick failures. Mice were largely responsible for high numbers of Tristan Albatross chick failures in 2004-2006. Total failures were significantly related to total attempts but breeding success and total attempts were not correlated. There was little spatio-temporal consistency in total failures or breeding success. No environmental or biological variables examined explained the pattern. Proximity to a failed nest was a significant predictor of failure, suggesting a localised effect possibly due to a few predatory mice. Fledgling production has decreased by 1% annually since 1979-1982. Annual adult Tristan Albatross survival and breeding success averages are extremely low (91% and 32%, respectively) and modelled population growth using these parameters was - 2.85% p.a. Either parameter will drive decreases so reversing negative trends requires improving both. DA - 2007 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2007 T1 - Impacts of the introduced house mouse on the seabirds of Gough Island TI - Impacts of the introduced house mouse on the seabirds of Gough Island UR - http://hdl.handle.net/11427/6159 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/6159
dc.identifier.vancouvercitationWanless RM. Impacts of the introduced house mouse on the seabirds of Gough Island. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2007 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/6159en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Biological Sciencesen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherZoologyen_ZA
dc.titleImpacts of the introduced house mouse on the seabirds of Gough Islanden_ZA
dc.typeDoctoral Thesis
dc.type.qualificationlevelDoctoral
dc.type.qualificationnamePhDen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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