Please use this identifier to cite or link to this item: https://zone.biblio.laurentian.ca/handle/10219/2850
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dc.contributor.authorAcker, Madison Jennifer-
dc.date.accessioned2017-12-22T15:04:22Z-
dc.date.available2017-12-22T15:04:22Z-
dc.date.issued2017-11-22-
dc.identifier.urihttps://zone.biblio.laurentian.ca/handle/10219/2850-
dc.description.abstractChronic exposure to high levels of glucocorticoid hormones can be detrimental to survival and reproduction. Captive breeding and release may inadvertently subject animals to conditions that elicit an increase in glucocorticoids, if conditions in captivity or habitats in the wild are inadequate. The critically endangered Vancouver Island marmot (Marmota vancouverensis) was used to investigate variability in hair cortisol concentration, a measure of systemic glucocorticoid exposure. Marmots were sampled from the captive, captive-release and wild populations. Captive animals had significantly lower cortisol levels than wild animals. Several marmots were also sampled from the historic wild population that lived on Vancouver Island prior to the proliferation of anthropogenic disturbances. A comparison between contemporary and historic animals showed that marmots at most colonies had cortisol levels that were the same as historic level. Three colonies had significantly elevated cortisol levels. Cortisol concentration in the wild was best explained by proximity of a colony to logging roads.en_CA
dc.language.isoenen_CA
dc.subjectendangered mammalsen_CA
dc.subjecthair cortisol analysisen_CA
dc.subjectland useen_CA
dc.subjectforestryen_CA
dc.subjectconservationen_CA
dc.subjectlinear mixed modelingen_CA
dc.titleCortisol and conservation: understanding barriers to the recovery of a critically endangered species using stress physiologyen_CA
dc.typeThesisen_CA
dc.description.degreeMaster of Science (MSc) in Biologyen_CA
dc.publisher.grantorLaurentian University of Sudburyen_CA
Appears in Collections:Biology - Master's Theses
Master's Theses

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