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 - 4 of 4

Impacts of invasive hybrid cattail Typha x glauca and reduced marsh interspersion on muskrats (Ondatra zibethicus) in North America

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Year: 2024, 2024
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Melvin, Gregory Paul, Thesis advisor (ths): Bowman, Jeff, Degree committee member (dgc): Freeland, Joanna, Degree committee member (dgc): Metcalfe, Robert, Degree granting institution (dgg): Trent University
Abstract: <p>Muskrat populations are declining across North America. In recent decades, hybrid cattail Typha x glauca has been invading wetlands in North America. This invasion is degrading wetland habitat, leading to reduced interspersion of water and vegetation. Muskrats are wetland-obligates and their populations are positively linked to marsh interspersion. Therefore, muskrat populations may be… more

Within-Generation and Transgenerational Thermal Plasticity in Cold-Adapted Salmonids of the Genus Salvelinus

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Year: 2024, 2024
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Penney, Chantelle, Thesis advisor (ths): Wilson, Chris C, Thesis advisor (ths): Burness, Gary, Degree committee member (dgc): Scott, Graham, Degree committee member (dgc): Craig, Paul, Degree committee member (dgc): Freeland, Joanna, Degree granting institution (dgg): Trent University
Abstract: <p>Climate change is a major conservation concern, especially for many cold-adapted species. The rate of warming due to climate change will likely outpace adaptive responses, and many populations will likely need to rely on phenotypic plasticity to cope with environmental warming. It is currently unclear whether plasticity in physiological responses to warming will be sufficient to offset… more

Range Expansion of Invasive Hybrid Cattails (Typha × Glauca) in the Prairie Pothole Region

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Year: 2024, 2024
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Joyee, Sanjuti Deb, Thesis advisor (ths): Dorken, Marcel, Thesis advisor (ths): Freeland, Joanna, Degree committee member (dgc): Bowman, Jeff, Degree granting institution (dgg): Trent University
Abstract: <p>Wetlands are highly susceptible to the invasion of invasive species. The invasive hybrid cattail (Typha × glauca) is prevalent in the southeastern Prairie Pothole Region (PPR) wetlands. However, concerns arise about its recent proliferation in the northwestern PPR without maternal T. angustifolia. To determine taxonomic distribution, I used species-specific PCR-RFLP and microsatellite… more

Accuracy and reliability of microscopic characteristics to identify Typha species and their hybrids

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Year: 2024, 2024
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Kowalczyk, Olivia Samantha, Thesis advisor (ths): Freeland, Joanna, Thesis advisor (ths): Dorken, Marcel, Degree committee member (dgc): Bowman, Jeff, Degree granting institution (dgg): Trent University
Abstract: <p>Advanced generation/backcrossed (non-F1) hybrids can be challenging to identify when their traits are similar to those of parental taxa, F1 hybrids, or both. This is particularly evident in the North American hybrid zone involving Typha latifolia, T. angustifolia, F1 T. × glauca and non-F1 hybrids. Cattails are challenging to differentiate based on gross morphological characteristics.… more