Trent University Graduate Thesis Collection

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    tula:etd
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    Copyright for all items in the Trent University Graduate Thesis Collection is held by the author, with all rights reserved, unless otherwise noted.
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    Constraints on phenotypic plasticity in response to predation risk: Carryover effects, maternal investment, and the starvation-predation risk trade-off

    Year: 2014, 2014
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Bennett, Amanda Maria, Thesis advisor (ths): Murray, Dennis L, Degree committee member (dgc): Burness, Gary, Degree committee member (dgc): Kerr, Leslie, Degree committee member (dgc): Ridgway, Mark, Degree granting institution (dgg): Trent University
    Abstract: <p>Inducible defenses are plastic responses by an organism to the perception of predation risk. This dissertation focuses on three experiments designed to test the hypothesis that plastic ability is limited by energetic constraints. Chapter 1 provides a general introduction to phenotypic plasticity research and the theoretical costs and limitations affecting the expression of plastic traits… more

    Home range use, habitat selection, and stress physiology of eastern whip-poor-wills (Antrostomus vociferus) at the northern edge of their range

    Year: 2014, 2014
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Rand, Gregory James, Thesis advisor (ths): Nocera, Joseph J, Thesis advisor (ths): Burness, Gary, Degree committee member (dgc): Schaefer, James A, Degree granting institution (dgg): Trent University
    Abstract: <p>The distribution of animals is rarely random and is affected by various environmental factors. We examined space-use patterns, habitat selection and stress responses of whip-poor-wills to mining exploration activity.To the best of my knowledge, fine scale patterns such as the habitat composition within known home ranges or territories of eastern whip-poor-wills have not been investigated… more

    USE OF SALIVARY CORTISOL TO EVALUATE THE INFLUENCE OF RIDES ON THE STRESS PHYSIOLOGY OF DROMEDARY CAMELS (CAMELUS DROMEDARIUS): VALIDATION OF METHODS AND ASSESSMENT OF SALIVA STORAGE TECHNIQUES

    Year: 2014, 2014
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Majchrzak, Yasmine Nicole, Thesis advisor (ths): Burness, Gary, Degree committee member (dgc): Mastromonaco, Gabriela, Degree committee member (dgc): Murray, Dennis, Degree committee member (dgc): Bowman, Jeff, Degree granting institution (dgg): Trent University
    Abstract: <p>Many facilities attempt to alleviate the risk of chronic stress in captivity by providing environmental enrichment shown to minimize behavioural disorders and stress in several species. One potential form of enrichment used in zoos is training animals to perform rides for guests, however, the effect of this activity on the welfare of individual animals has never been examined. I… more

    Ice age fish in a warming world: thermal acclimation capacity of lake trout (Salvelinus namaycush) populations

    Year: 2014, 2014
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Kelly, Nick, Thesis advisor (ths): Burness, Gary, Thesis advisor (ths): Wilson, Chris C, Degree committee member (dgc): Ridgway, Mark S., Degree committee member (dgc): McDermid, Jenni L., Degree granting institution (dgg): Trent University
    Abstract: <p>In the face of climate change, the persistence of cold-adapted species and populations will depend on their capacity for evolutionary adaptation of physiological traits. As a cold-adapted Ice Age relict species, lake trout (Salvelinus namaycush) are ideal for studying potential effects of climate change on coldwater fishes. I studied the thermal acclimation capacity and aerobic… more

    The Spatial Dynamics of Wind Pollination in Broadleaf Cattail (Typha latifolia): A New Method to Infer Spatial Patterns of Pollen Dispersal

    Year: 2014, 2014
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Ahee, Jordan, Thesis advisor (ths): Dorken, Marcel E, Degree committee member (dgc): Freeland, Joanna R, Degree committee member (dgc): Burness, Gary, Degree committee member (dgc): Pond, Bruce, Degree granting institution (dgg): Trent University
    Abstract: <p>Natural populations of flowering plants rarely have perfectly uniform distributions, so trends in pollen dispersal should affect the size of the pollination neighbourhood and influence mating opportunities. Here I used spatial analysis to determine the size of the pollination neighbourhood in a stand of the herbaceous, wind-pollinated plant (<italic>Typha latifolia</italic>;… more