Browsing Faculty of Science by Author "Fraser, Dylan J."
Now showing items 1-7 of 7
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Concurrent habitat and life history influences on effective/census population size ratios in stream-dwelling trout
Belmar-Lucero, Sebastian; Wood, Jacquelyn L. A.; Scott, Sherylyne; Harbicht, Andrew B.; Hutchings, Jeffrey Alexander; Fraser, Dylan J. (2012-03)Lower effective sizes (Ne) than census sizes (N) are routinely documented in natural populations, but knowledge of how multiple factors interact to lower N-e/N ratios is often limited. We show how combined habitat and ... -
Consequences of farmed-wild hybridization across divergent wild populations and multiple traits in salmon
Fraser, Dylan J.; Houde, Aimee Lee S.; Debes, Paul V.; O'Reilly, Patrick; Eddington, James D.; Hutchings, Jeffrey Alexander (2010-06)Theory predicts that hybrid fitness should decrease as population divergence increases. This suggests that the effects of human-induced hybridization might be adequately predicted from the known divergence among parental ... -
Hybridization effects on phenotypic plasticity: experimental compensatory growth in farmed-wild Atlantic salmon
Morris, Matthew R. J.; Fraser, Dylan J.; Eddington, James; Hutchings, Jeffrey Alexander (2011-05)Compensatory growth (CG) is a means by which organisms can increase their growth rate above their routine growth rate after a period of environmentally induced growth depression. Despite a focus on the implications of ... -
Mixed evidence for reduced local adaptation in wild salmon resulting from interbreeding with escaped farmed salmon: complexities in hybrid fitness
Fraser, Dylan J.; Cook, Adam M.; Eddington, James D.; Bentzen, Paul; Hutchings, Jeffrey A. (2008-08)Interbreeding between artificially-selected and wild organisms can have negative fitness consequences for the latter. In the Northwest Atlantic, farmed Atlantic salmon recurrently escape into the wild and enter rivers where ... -
Mixed evidence for reduced local adaptation in wild salmon resulting from interbreeding with escaped farmed salmon: complexities in hybrid fitness
Fraser, Dylan J.; Cook, Adam M.; Eddington, James D.; Bentzen, Paul; Hutchings, Jeffrey Alexander (2008-08)Interbreeding between artificially-selected and wild organisms can have negative fitness consequences for the latter. In the Northwest Atlantic, farmed Atlantic salmon recurrently escape into the wild and enter rivers ... -
Population-specific gene expression responses to hybridization between farm and wild Atlantic salmon
Normandeau, Eric; Hutchings, Jeffrey Alexander; Fraser, Dylan J.; Bernatchez, Louis (2009-11)Because of intrinsic differences in their genetic architectures, wild populations invaded by domesticated individuals could experience population-specific consequences following introgression by genetic material of ... -
Relative risks of inbreeding and outbreeding depression in the wild in endangered salmon
Houde, Aimee L. S.; Fraser, Dylan J.; O'Reilly, Patrick; Hutchings, Jeffrey Alexander (2011-09)Conservation biologists routinely face the dilemma of keeping small, fragmented populations isolated, wherein inbreeding depression may ensue, or mixing such populations, which may exacerbate population declines via ...