Now showing items 1-10 of 11
The relationship between offspring size and fitness: integrating theory and empiricism
How parents divide the energy available for reproduction between size and number of offspring has a profound effect on parental reproductive success. Theory indicates that the relationship between offspring size and ...
Consequences of farmed-wild hybridization across divergent wild populations and multiple traits in salmon
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
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 ...
Evolutionary and ecological feedbacks of the survival cost of reproduction
Arguably the most fundamental of trade-offs in life-history evolution is the increase in natural mortality resulting from sexual maturity and reproduction. Despite its central importance, this increase in mortality, a ...
Life-history correlates of extinction risk and recovery potential
Extinction risk is inversely associated with maximum per capita population growth rate (r(max)). However, this parameter is not known for most threatened species, underscoring the value in identifying correlates of r(max) ...
Relative risks of inbreeding and outbreeding depression in the wild in endangered salmon
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 ...
Genomic islands of divergence and their consequences for the resolution of spatial structure in an exploited marine fish
As populations diverge, genomic regions associated with adaptation display elevated differentiation. These genomic islands of adaptive divergence can inform conservation efforts in exploited species, by refining the ...
Jeffrey Hutchings CV
Concurrent habitat and life history influences on effective/census population size ratios in stream-dwelling trout
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 ...
The Ecology of Atlantic Cod (Gadus morhua) in Canadian Arctic Lakes
The range of limnological conditions that support Atlantic cod populations in meromictic Arctic lakes is known to be relatively restricted. The degree to which differences in these features, particularly in the availability ...