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dc.contributor.supervisor Roth, James (Biological Sciences) en_US
dc.contributor.author Ewacha, Michelle
dc.date.accessioned 2016-09-15T15:12:58Z
dc.date.available 2016-09-15T15:12:58Z
dc.date.issued 2016
dc.identifier.uri http://hdl.handle.net/1993/31773
dc.description.abstract Disturbance can provoke a chronic (long-term) stress response in wildlife, and can contribute to population declines. I examined the stress response of boreal woodland caribou, moose, and wolves to disturbance in eastern Manitoba by measuring cortisol concentrations in hair. Caribou cortisol concentrations were greatest for the three most southern populations, and increased with decreasing home range size. Intermediate logging (6-21 years) provided the best explanation for individual variation in caribou cortisol concentrations. Disturbance did not affect moose cortisol concentrations, but cortisol concentrations were higher in moose killed by wolves than moose collected by humans, suggesting that chronic stress in moose is linked to poor body condition and increased vulnerability to wolf predation. Wolf cortisol concentrations increased in 2012 and 2013 compared to 2011 following increased harvest pressure, and were higher in females. However, neither winter severity nor variation in wolf diet affected wolf cortisol concentrations. en_US
dc.rights info:eu-repo/semantics/openAccess
dc.subject Boreal woodland caribou en_US
dc.subject Moose en_US
dc.subject Wolf en_US
dc.subject Cortisol en_US
dc.subject Stress en_US
dc.subject Manitoba en_US
dc.subject Disturbance en_US
dc.title Stress response of boreal woodland caribou, moose, and wolves to disturbance in eastern Manitoba en_US
dc.type info:eu-repo/semantics/masterThesis
dc.type master thesis en_US
dc.degree.discipline Biological Sciences en_US
dc.contributor.examiningcommittee Anderson, Gary (Biological Sciences) Baydack, Rick (Environment and Geography) en_US
dc.degree.level Master of Science (M.Sc.) en_US
dc.description.note October 2016 en_US


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