Trent University Graduate Thesis Collection

Item Description
Identifier
tula:etd
Type
Collection
Language
eng
Extent
1 item
Rights
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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Displaying 1 - 7 of 7

Temporo-spatial patterns of occupation and density by an invasive fish in streams

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Year: 2019, 2019
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): May, Chelsea Marie, Thesis advisor (ths): Fox, Michael G, Thesis advisor (ths): Burness, Gary, Degree committee member (dgc): Beresford, David V, Degree granting institution (dgg): Trent University
Abstract: <p>Since its introduction to North America in the 1990s, the Round Goby has spread throughout the Great Lakes, inland through rivers and is now moving into small tributary streams, a new environment for this species in both its native and invaded ranges. I explored density and temporal occupation of Round Gobies in four small streams in two systems in south-central Ontario, Canada in order… more

Shorebird Habitat Use and Foraging Ecology on Bulls Island, South Carolina During the Non-Breeding Season

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Year: 2019, 2019
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Jamieson, Ellen Geraldine, Thesis advisor (ths): Nol, Erica, Degree committee member (dgc): Smith, Paul, Degree committee member (dgc): Burness, Gary, Degree granting institution (dgg): Trent University
Abstract: <p>Recent declines in North American shorebird populations could be linked to habitat loss on the non-breeding grounds. Sea-level rise and increased frequency of coastal storms are causing significant erosion of barrier islands, thereby threatening shorebirds who rely on shoreline habitats for foraging. I conducted shorebird surveys on Bulls Island, South Carolina in the winters of 2018 and… more

Contemporary adaptive shifts in the physiology and life history of Pumpkinseed (Lepomis gibbosus) introduced into a warm climate

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Year: 2019, 2019
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Rooke, Anna Christine, Thesis advisor (ths): Fox, Michael G, Degree committee member (dgc): Burness, Gary, Degree committee member (dgc): Reid, Scott, Degree granting institution (dgg): Trent University
Abstract: <p>Contemporary evolution has the potential to help limit the biological impact of rapidly changing climates, however it remains unclear whether wild populations can respond quickly enough for such adaptations to be effective. In this thesis, I used the introduction of native North American Pumpkinseed (Lepomis gibbosus) into the milder climate of Europe over 140 years ago, as a '… more

Risk of Mortality for the Semipalmated Plover (Charadrius semipalmatus) Throughout Its Life Cycle

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Year: 2019, 2019
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Williams, Simone Elise, Thesis advisor (ths): Nol, Erica, Degree committee member (dgc): Burness, Gary, Degree committee member (dgc): Bowman, Jeff, Degree granting institution (dgg): Trent University
Abstract: <p>Three long-term mark and recapture/resight data sets of individually marked</p><p>Semipalmated Plovers (Charadrius semipalmatus) were analyzed using Cormack-Jolly-</p><p>Seber models. Data came from two breeding populations (Churchill, Manitoba, Canada,</p><p>n=982, and Egg Island, Alaska, USA, n=84) and one overwintering population</p><p>(… more

The Effects of Silver Nanoparticles on Lower Trophic Levels in Aquatic Ecosystems

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Year: 2019, 2019
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Cetinic, Katarina Ana, Thesis advisor (ths): Xenopoulos, Marguerite A., Degree committee member (dgc): Beresford, David V., Degree committee member (dgc): Burness, Gary, Degree granting institution (dgg): Trent University
Abstract: <p>Due to their effective antibacterial and antifungal properties, silver nanoparticles (AgNPs) have quickly become the most commonly used nanomaterial, with applications in industry, medicine and consumer products. This increased use of AgNPs over the past decade will inevitably result in an elevated release of nanoparticles into the environment, highlighting the importance of assessing… more

The cascading effects of risk in the wild: how snowshoe hares (Lepus americanus) respond to the threat of predation

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Year: 2019, 2019
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Boudreau, Melanie R., Thesis advisor (ths): Murray, Dennis L, Degree committee member (dgc): Schaefer, James, Degree committee member (dgc): Burness, Gary, Degree granting institution (dgg): Trent University
Abstract: <p>Predation risk can elicit a range of responses in prey, but to date little is known about breadth of potential responses that may arise under realistic field conditions and how such responses are linked, leaving a fragmented picture of risk-related consequences on individuals. We increased predation risk in free-ranging snowshoe hares (Lepus americanus) during two consecutive summers by… more

The role of corticosterone in breeding effort and reproductive success in tree swallows

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Year: 2019, 2019
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Fischer, Devin, Thesis advisor (ths): Burness, Gary, Degree committee member (dgc): Nol, Erica, Degree committee member (dgc): Nocera, Joseph, Degree granting institution (dgg): Trent University
Abstract: <p>Glucocorticoids (e.g., corticosterone (CORT)) are hypothesized to mediate decisions regarding reproductive investment during breeding, but the directionality of the relationship is not clear. The CORT-fitness hypothesis posits that high levels of CORT arise from challenging environmental conditions in which an individual will conserve resources for future reproduction or self-maintenance… more