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.
Displaying 1 - 4 of 4

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Displaying 1 - 4 of 4

Habitat Characteristics, Density Patterns and Environmental Niches of Indo-Pacific Humpback Dolphins (Sousa chinensis) of the Pearl River Estuary and Eastern Taiwan Strait

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Year: 2019, 2019
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Dares, Lauren Elizabeth, Thesis advisor (ths): White, Bradley N, Degree committee member (dgc): Pond, Bruce A, Degree committee member (dgc): Murray, Dennis L, Degree granting institution (dgg): Trent University
Abstract: <p>The purpose of this thesis is to quantify the habitat characteristics, density patterns and environmental niches of two groups of Indo-Pacific humpback dolphins: Chinese white dolphins (CWD) of the Pearl River estuary (PRE), and Taiwanese white dolphins (TWD, =Taiwanese humpback dolphin, THD) found in the eastern Taiwan Strait (ETS). Much work has already been done on the habitat use of… more

Assessing Molecular and Ecological Differentiation in Wild Carnivores

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Year: 2019, 2019
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Johnson, Justin Brian, Thesis advisor (ths): Murray, Dennis L, Thesis advisor (ths): Shafer, Aaron B.A., Degree committee member (dgc): Conolly, James, Degree granting institution (dgg): Trent University
Abstract: <p>Wild populations are notoriously difficult to study due to confounding stochastic variables. This thesis tackles two components of investigating wild populations. The first examines the use of niche modeling to quantify macro-scale predator-prey relationships in canid populations across eastern North America, while the second examines range-wide molecular structure in Canada lynx. The… more

Do birds of a feather flock together: An investigation of sandhill crane (Antigone canadensis) populations using non-invasive feathers as a source of DNA

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Year: 2019, 2019
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Kelly, Crystal, Thesis advisor (ths): Murray, Dennis L, Degree committee member (dgc): Kyle, Chris J, Degree committee member (dgc): Beresford, David V, Degree granting institution (dgg): Trent University
Abstract: <p>Populations have long been delineated by physical barriers that appear to limit reproduction, yet increasingly genetic analysis reveal these delineations to be inaccurate. The eastern and mid-continent populations of sandhill cranes are expanding ranges which is leading to convergence and warrants investigation of the genetic structure between the two populations. Obtaining blood or… 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