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Rm: 4443A Bioscience Complex
Tel: (613) 533-6156
E-mail: vlf@queensu.ca
Faculty Web Site: http://www.queensu.ca/biology/people/faculty/friesen.html
RESEARCH AREA/POTENTIAL PROJECTS
My research program involves applying state-of-the-art methods in molecular genetics and bioinformatics both to test evolutionary theory and to aid conservation of endangered species (see http://post.queensu.ca/~vlf/index.htm). Our main focus is investigating the mechanisms by which biodiversity is generated (e.g., how species multiply), which is important for understanding many aspects of evolution and ecology (e.g. can species adapt to climate change?). Some projects have applications to the conservation of specific species, with data being used for assessments under both the Canadian and US endangered species acts. Most projects involve seabirds, but others involve woodland birds, birds of prey, and fish. Questions encompass multiple levels of biological organization, from individual behaviour to phylogenetics (evolutionary trees). Two potential projects are available for 537 students in 2012-13:
(1) A variety of plant and animal taxa that inhabit Haida Gwaii are morphologically distinct from their mainland relatives. This high endemicity, combined with the unique cultural heritage of the area, lead to the creation of Gwaii Haanas National Park. We are comparing Haida Gwaii populations of several species of birds with their mainland counterparts to determine a) if the Haida Gwaii populations are genetically distinct, and if so (b) whether the Haida Gwaii population diverged through isolation in a glacial refugium or through adaptation post-glaciation. The successful 537 applicant will add to this study by analyzing variation in mitochondrial DNA and microsatellites in one species of thrush or flycatcher.
(2) Band-rumped storm-petrels are small seabirds that nest on several tropical and subtropical islands. On some islands, separate populations breed in the same colony at different times of year. Previous work in my lab indicates that these seasonal populations represent examples of sympatric speciation, a controversial model of diversification. Current work in my lab is testing for a role for the 'clock' gene, which regulates circadian rhythms, in determining timing of breeding in band-rumped storm-petrels. The successful 537 applicant will analyze variation in the 'clock' gene in a closely related species, Leach's storm-petrel, which also has two seasonal populations in Baja Mexico.