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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The effects of parasitism on consumer-driven nutrient recycling

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Year: 2016, 2016
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Narr, Charlotte, Thesis advisor (ths): Frost, Paul C, Degree committee member (dgc): Burness, Gary, Degree committee member (dgc): Sutcliffe, Jim, Degree granting institution (dgg): Trent University
Abstract: <p>Daphnia are keystone consumers in many pelagic ecosystems because of their central role in nutrient cycling. Daphnia are also frequently infected, and the parasites causing these infections may rival their hosts in their ability to regulate ecosystem processes. Therefore, parasitic exploitation of Daphnia may alter nutrient cycling in pelagic systems. This thesis integrates existing… more

Effects of biodiversity and lake environment on the decomposition rates of aquatic macrophytes in the Kawartha Lakes, Ontario

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Year: 2016, 2016
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Banks, Lauren K., Thesis advisor (ths): Frost, Paul C, Degree committee member (dgc): Dorken, Marcel, Degree committee member (dgc): Sager, Eric, Degree granting institution (dgg): Trent University
Abstract: <p>Decomposition of aquatic macrophytes has an important role in defining lake carbon (C) storage and nutrient dynamics. To test how diversity impacts decomposition dynamics and site-quality effects, I first examined whether the decomposition rate of aquatic macrophytes varies with species richness. Generally, I found neutral effects of mixing, with initial stoichiometry of component… more

Elemental Variation in Daphnia: Nutritional, Genetic, and Environmental Factors

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Year: 2016, 2016
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Prater, Clay, Thesis advisor (ths): Frost, Paul C, Degree committee member (dgc): Murray, Dennis, Degree committee member (dgc): Wilson, Chris, Degree granting institution (dgg): Trent University
Abstract: <p>Environmental variation can affect consumer trait expression and alter ecological and evolutionary dynamics in natural populations. However, although dietary nutrient content can vary by an order of magnitude in natural ecosystems, intra-specific differences in consumer responses to food quality have not been thoroughly investigated. Therefore, the purpose of my dissertation was to… more