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dc.contributor.advisorKing, Carolyn M.
dc.contributor.authorHill, Carly Michelle
dc.date.accessioned2018-08-16T00:03:03Z
dc.date.available2018-08-16T00:03:03Z
dc.date.issued2017
dc.identifier.citationHill, C. M. (2017). New Zealand Mustelids and the Ecomorphometrics of Mandibles (Thesis, Master of Science (Research) (MSc(Research))). University of Waikato, Hamilton, New Zealand. Retrieved from https://hdl.handle.net/10289/12022en
dc.identifier.urihttps://hdl.handle.net/10289/12022
dc.description.abstractThree species of Mustelidae are found in New Zealand: ferrets (Mustela furo), stoats (Mustela erminea), and weasels (Mustela nivalis vulgaris). The introduction and spread of mustelids into a wide range of habitats different from those of their native lands has provided an opportunity to study the impacts that habitat differences might had on mustelid mandible morphology, especially stoats which are more widespread in New Zealand. Geometric morphometrics were used to make comparisons of the morphological variation of mandibles within and between the three New Zealand species. Each mandible had 24 landmarks. There was size sexual dimorphism within each species but no shape sexual dimorphism. However, there was between species allometry and mandible shape differences, which can be related to diet composition and the bite force required to kill prey. The second comparison examined the morphological plasticity of stoat mandibles collected across ten New Zealand habitats and one English location. There was no shape sexual dimorphism and the degree of size sexual dimorphism was different at each location. Male stoats had a high variation in mandible size likely from size plasticity in a response to differential prey availability during growth. Some locations had significantly different mandible shapes from others, these matched differences in biomechanical advantage and likely represents adaptation to the environment. Mandible shape of stoats was correlated with rainfall which has been correlated to mice density. My results also called the into question the correlation between mandible size and skull size, which now requires further study.
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dc.language.isoen
dc.publisherUniversity of Waikato
dc.rightsAll items in Research Commons are provided for private study and research purposes and are protected by copyright with all rights reserved unless otherwise indicated.
dc.subjectFerret
dc.subjectStoat
dc.subjectWeasel
dc.subjectMandible
dc.subjectSexual dimorphism
dc.subjectEcology
dc.subjectAllometry
dc.subjectPlasticity
dc.subjectAdaptation
dc.subjectHabitat
dc.titleNew Zealand Mustelids and the Ecomorphometrics of Mandibles
dc.typeThesis
thesis.degree.grantorUniversity of Waikato
thesis.degree.levelMasters
thesis.degree.nameMaster of Science (Research) (MSc(Research))
dc.date.updated2017-02-22T20:32:21Z
pubs.place-of-publicationHamilton, New Zealanden_NZ


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