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Dr. Dom Tollit, PhD
Research Associate
BSc - Aquatic Biology - University
College of Wales, Aberystwyth, UK
PhD - Zoology - University of Aberdeen, UK
Tel: 604.822.8183
Fax: 604.822.8180
E-mail: tollit@zoology.ubc.ca
BIOGRAPHY:
Dom Tollit is a Research Associate at the University of British Columbia whose research has concentrated on pinniped-prey interactions through multi-faceted captive and field based studies of pinniped diet and foraging ecology. His current research on Steller sea lions includes assessing biases in estimating diet composition from scats, validating new DNA-based quantification methods, using blubber fatty acid and stable isotope signatures to describe diet, as well as investigating prey selection and the level of competition between Steller sea lions and fisheries in the North Pacific.
He completed
his Ph.D on the foraging ecology of Harbour seals at the University of
Aberdeen, Scotland, and completed this research when based at the Lighthouse
Field Station in 1996. Prior to joining the UBC Marine Mammal Research
Unit in 2000, Dom led field research projects on Macquarie Island (southern
elephant seal foraging ecology), in Borneo (effects of logging on freshwater
fish communities) and in Fiji (coral reef surveys).
PUBLICATIONS
Tollit, D. J., A. D. Schulze, A. W. Trites, P. F. Olesiuk, S. J. Crockford, T. S. Gelatt, R. R. Ream. (in press). Development and application of DNA techniques for validating and improving pinniped diet estimates. Ecological Applications
Nordstrom, C.A., L.J. Wilson, S.J. Iverson and D.J. Tollit. 2008. Evaluating Quantitative Fatty Acid Signature Analysis (QFASA) using harbour seals (Phoca vitulina richardsi) in captive feeding studies. Marine Ecology Progress Series Vol 360 pp. 245–263
(PDF)
Deagle, B.E. and D.J. Tollit. 2007. Quantitative analysis of prey DNA in pinniped faeces: potential to estimate diet composition? Conservation Genetics 8:743-747.
(PDF)
Tollit, D.J., S.G. Heaslip, R.L. Barrick and A.W. Trites. 2007. Impact of diet index selection and the digestion of prey hard remains on determining the diet of the Steller sea lion (Eumetopias jubatus). Canadian Journal of Zoology 85:1-15.
(PDF)
Joy, R., D.J. Tollit, J.L. Laake, and A.W. Trites. 2006. Using simulations to evaluate reconstructions of sea lion diet from scat. In Sea Lions of the World. A.W. Trites, S. Atkinson, D.P. DeMaster, L.W. Fritz, T.S. Gelatt, L.D. Rea and K. Wynne (eds). pp. 205-222. Alaska Sea Grant College Program, University of Alaska, Fairbanks.
(PDF)
Rosen, D.A., D.J. Tollit, A.J. Winship, and A.W. Trites. 2006. Potential effects of short-term prey changes on sea lion physiology. In Sea Lions of the World. A.W. Trites, S. Atkinson, D.P. DeMaster, L.W. Fritz, T.S. Gelatt, L.D. Rea and K. Wynne (eds). pp. 103-116. Alaska Sea Grant College Program, University of Alaska, Fairbanks.
(PDF)
Tollit, D.J., S.G. Heaslip, B.E. Deagle, S.J. Iverson, R. Joy, D.A.S. Rosen and A.W. Trites. 2006. Estimating diet composition in sea lions: which technique to choose? In Sea Lions of the World. A.W. Trites, S. Atkinson, D.P. DeMaster, L.W. Fritz, T.S. Gelatt, L.D. Rea and K. Wynne (eds). pp. 293-307. Alaska Sea Grant College Program, University of Alaska, Fairbanks.
(PDF)
Deagle, B.E., D.J. Tollit, S.N. Jarman, M.A. Hindell, A.W. Trites and N.J. Gales. 2005. Molecular scatology as a tool to study diet: analysis of prey DNA in scats from captive Steller sea lions. Molecular Ecology 14:1831-1842.
(PDF)
Tollit, D.J., Heaslip, S.G. and Trites, A.W. 2004. Sizes of walleye pollock (Theragra chalcogramma) consumed by the eastern stock of Steller sea lions (Eumetopias jubatus) in Southeast Alaska from 1994-1999. Fishery Bulletin 102(3):522-532.
(PDF)
Tollit, D.J., Heaslip, S.G., Zeppelin, T.K., Joy, R., Call, K.A. and Trites, A.W. 2004. A method to improve size estimates of walleye pollock (Theragra chalcogramma) and Atka mackerel (Pleurogrammus monopterygius) consumed by pinnipeds: digestion correction factors applied to bones and otoliths recovered in scats. Fishery Bulletin 102(3):498-508.
(PDF)
Zeppelin, T. K., Tollit, D.J., Call, K.A., Orchard, T. J. and Gudmundson, C. J. 2004. Sizes of walleye pollock and Atka mackerel consumed by the Western stock of Steller sea lions (Eumetopias jubatus) in Alaska from 1998-2000. Fishery Bulletin 102(3):509-521.
(PDF)
Tollit, D.J., M. Wong, A.J. Winship, D.A.S. Rosen and A.W. Trites. 2003. Quantifying errors associated with using prey skeletal structures from fecal samples to determine the diet of the Steller sea lion (Eumetopias jubatus). Marine Mammal Science pp. 724-744.
(PDF)
PDF of Tollit publications.