Year: 2015, 2015
Member of: Trent University Graduate Thesis Collection
Abstract: <p>The purpose of this study was to quantify the variation of baseline carbon and nitrogen stable isotope signatures in the Lake Simcoe watershed and relate that variation to various physicochemical parameters. Particulate organic matter samples from 2009 and 2011 were used as representatives of baseline isotopic values. Temporal data from two offshore lake stations revealed that δ… more Full Text: ! ! ! ! ! ! ! ! ! VARIATION!IN!THE!δ15N!AND!δ13C!COMPOSITION!OF!POM!IN!THE!LAKE! SIMCOE!WATERSHED! ! ! ! ! ! A!Thesis!Submitted!to!the!Committee!on!Graduate!Studies!! in!Partial!Fulfillment!of!the!Requirements!for!the!Degree!of!Master!of!Science!! …
Year: 2015, 2015
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Celsie, Alena Kathryn Davidson, Thesis advisor (ths): Mackay, Donald, Thesis advisor (ths): Parnis, Mark, Degree committee member (dgc): Hickie, Brendan, Degree committee member (dgc): Mackay, Donald, Degree committee member (dgc): Parnis, Mark, Degree committee member (dgc): Aherne, Julian, Degree granting institution (dgg): Trent University Abstract: <p>Models of partitioning, uptake, and toxicity of neutral organic chemicals in fish</p><p>Alena Kathryn Davidson Celsie</p><p>A novel dynamic fugacity model is developed that simulates the uptake of chemicals in fish by respiration as applies in aquatic toxicity tests. A physiologically based toxicokinetic model was developed which calculates the time-course of… more Full Text: Models of partitioning, uptake, and toxicity of neutral organic chemicals in fish A Thesis Submitted to the Committee on Graduate Studies in Partial Fulfillment of the Requirements for the Degree of Master of Science in the Faculty of Arts and Science …
Year: 2015, 2015
Member of: Trent University Graduate Thesis Collection
Abstract: <p>In this study, the influence of N deposition on the vegetation community of semi-natural oak woodlands in Ireland was assessed through national and regional scale analysis of forest plot data. At both scales, Canonical Correspondence Analysis suggested that N deposition was a predictor of community composition, although site-specific soil characteristics were the strongest predictors of… more Full Text: Influence of nitrogen deposition on the vegetation community of Irish oak woodlands A Thesis Submitted to the Committee on Graduate Studies in Partial Fulfillment of the Requirements for the Degree of Master of Science in the Faculty of Arts and Science …
Year: 2015, 2015
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Climate change has had numerous impacts on species' distributions by shifting suitable habitat to higher latitudes and elevations. These shifts pose new challenges to biodiversity management, in particular translocations, where suitable habitat is considered crucial for the reintroduced population. De-extinction is a new conservation tool, similar to reintroduction, except that the… more Full Text: REINTRODUCING SPECIES IN THE 21ST CENTURY: INCORPERATING CLIMATE CHANGE INTO TRANSLOCATION AND DE-EXTINCTION PROGRAMS A Thesis Submitted to the Committee on Graduate Studies in Partial Fulfillment of the Requirements for the Degree of Master of Science in …
Year: 2015, 2015
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Pacific Rim National Park Reserve's 16 km of coastal beaches attract many thousands of people and shorebirds every year. To identify locations where shorebirds concentrate and determine the impact of human activity and habitat characteristics on shorebirds, I conducted shorebird and visitor surveys at 20 beach sectors during fall migration in 2011 to 2013 and spring migration in… more Full Text: HUMAN ACTIVITY AND HABITAT CHARACTERISTICS INFLUENCE SHOREBIRD HABITAT USE AND BEHAVIOUR AT A VANCOUVER ISLAND MIGRATORY STOPOVER SITE A Thesis Submitted to the Committee on Graduate Studies in Partial Fulfillment of the Requirements for the Degree of …