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 - 5 of 5

Genomic Signatures of Speciation in Sympatric Flying Squirrels

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Year: 2024, 2024
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Menelon, Laurelie, Thesis advisor (ths): Bowman, Jeff, Thesis advisor (ths): Wilson, Paul, Degree committee member (dgc): Shafer, Aaron, Degree granting institution (dgg): Trent University
Abstract: <p>Hybridization contributes to the genetic diversity and can impact speciation. This study investigates the genetic evidence of recent hybridization under climate change in sympatric populations of northern and southern flying squirrels in Ontario. Using low-coverage whole-genome sequences, my research examines the existing population structure and measures the genomic variation of the… more

The effects of heat dissipation capacity on avian physiology and behaviour

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Year: 2021, 2021
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Tapper, Simon, Thesis advisor (ths): Burness, Gary, Thesis advisor (ths): Nocera, Joseph J, Degree committee member (dgc): Shafer, Aaron, Degree granting institution (dgg): Trent University
Abstract: <p>In endotherms, physiological functioning is optimized within a narrow range of tissue temperatures, meaning that the capacity to dissipate body heat is an important parameter for thermoregulation and organismal performance. Yet, experimental research has found mixed support for the importance of heat dissipation capacity as a constraint on reproductive performance. To investigate the… more

Daphnia pulicaria responses to temperature and nutrients stress: what happens when the heat is on?

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Year: 2020, 2020
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Starke, Cody, Thesis advisor (ths): Frost, Paul C, Degree committee member (dgc): Shafer, Aaron, Degree committee member (dgc): Paterson, Michael, Degree granting institution (dgg): Trent University
Abstract: <p>Warming climates have had various consequences on terrestrial and aquatic food webs that are expected to persist. There is evidence suggesting that certain organisms are better equipped to handle changing climates compared to others. Therefore, the purpose of my thesis was to study the adaptability of Daphnia under temperature stress and nutrient limitation. First, to examine the effects… more

Complex niche determinants in terrestrial salamanders: Does hybridism or reproductive parasitism explain large-scale patterns of distribution?

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Year: 2018, 2018
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Mills, Peter, Thesis advisor (ths): Murray, Dennis, Degree committee member (dgc): Davy, Christina, Degree committee member (dgc): Shafer, Aaron, Degree granting institution (dgg): Trent University
Abstract: <p>I assessed how organisms having multiple biotic attributes may have conflicting niche determinants, and whether the realized niche reflects single or multiple attributes. All-female salamanders engage in two biotic states: hybridism and reproductive parasitism. Hybrids should occupy areas transitional to those used by parental species, whereas parasites that engage in competition with… more

Using environmental DNA (eDNA) metabarcoding to assess aquatic plant communities

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Year: 2018, 2018
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Coghlan, Stephanie, Thesis advisor (ths): Freeland, Joanna, Thesis advisor (ths): Shafer, Aaron, Degree committee member (dgc): McConnell, Sabine, Degree granting institution (dgg): Trent University
Abstract: <p>Environmental DNA (eDNA) metabarcoding targets sequences with interspecific</p><p>variation that can be amplified using universal primers allowing simultaneous detection</p><p>of multiple species from environmental samples. I developed novel primers for three</p><p>barcodes commonly used to identify plant species, and compared amplification success… more