Recent Submissions

  • Why do fish stocks collapse? The example of cod in Atlantic Canada 

    Myers, RA, JA Hutchings, and NJ Barrowman. 1997. "Why do fish stocks collapse? The example of cod in Atlantic Canada." Ecological Applications 7(1): 91-106.
    In 1993, six Canadian populations of Atlantic cod (Gadus morhua) had collapsed to the point where a moratorium was declared on fishing. It has been argued that the collapses were caused by poor recruitment of cod to the ...
  • Genomic islands of divergence and their consequences for the resolution of spatial structure in an exploited marine fish 

    Bradbury, Ian R., Sophie Hubert, Brent Higgins, Sharen Bowman, et al. 2013. "Genomic islands of divergence and their consequences for the resolution of spatial structure in an exploited marine fish." Evolutionary Applications 6(3): 450-461.
    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 ...
  • Population-specific gene expression responses to hybridization between farm and wild Atlantic salmon 

    Normandeau, Eric, Jeffrey A. Hutchings, Dylan J. Fraser, and Louis Bernatchez. 2009. "Population-specific gene expression responses to hybridization between farm and wild Atlantic salmon." Evolutionary Applications 2(4): 489-503.
    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 ...
  • The relationship between offspring size and fitness: integrating theory and empiricism 

    Rollinson, Njal, and Jeffrey A. Hutchings. 2013. "The relationship between offspring size and fitness: integrating theory and empiricism." Ecology 94(2): 315-324.
    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 ...
  • Hybridization effects on phenotypic plasticity: experimental compensatory growth in farmed-wild Atlantic salmon 

    Morris, Matthew R. J., Dylan J. Fraser, James Eddington, and Jeffrey A. Hutchings. 2011. "Hybridization effects on phenotypic plasticity: experimental compensatory growth in farmed-wild Atlantic salmon." Evolutionary Applications 4(3): 444-458.
    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 

    Kuparinen, Anna, David C. Hardie, and Jeffrey A. Hutchings. 2012. "Evolutionary and ecological feedbacks of the survival cost of reproduction." Evolutionary Applications 5(3): 245-255.
    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 ...
  • Response: on the consequences of sexual selection for fisheries-induced evolution 

    Hutchings, Jeffrey A., and Sherrylynn Rowe. 2008. "Response: on the consequences of sexual selection for fisheries-induced evolution." Evolutionary Applications 1(4): 650-651.
    No abstract available.
  • Consequences of sexual selection for fisheries-induced evolution: an exploratory analysis 

    Hutchings, Jeffrey A., and Sherrylynn Rowe. 2008. "Consequences of sexual selection for fisheries-induced evolution: an exploratory analysis." Evolutionary Applications 1(1): 129-136.
    Reproductive behaviour and mating system complexity may influence fisheries-induced evolution. Mate choice and intrasexual competition might favour late-, large-maturing genotypes in contrast to the selection imposed by ...
  • Life-history correlates of extinction risk and recovery potential 

    Hutchings, Jeffrey A., Ransom A. Myers, Veronica B. Garcia, Luis O. Lucifora, et al. 2012. "Life-history correlates of extinction risk and recovery potential." Ecological Applications 22(4): 1061-1067.
    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) ...
  • Individual variation in Atlantic salmon fertilization success: Implications for effective population size 

    Jones, MW, and JA Hutchings. 2002. "Individual variation in Atlantic salmon fertilization success: Implications for effective population size." Ecological Applications 12(1): 184-193.
    Mating structure can influence the variance in individual reproductive success, which in turn has important implications for a population's effective size. Atlantic salmon (Salmo salar) males are characterized by alternative ...
  • Concurrent habitat and life history influences on effective/census population size ratios in stream-dwelling trout 

    Belmar-Lucero, Sebastian, Jacquelyn L. A. Wood, Sherylyne Scott, Andrew B. Harbicht, et al. 2012. "Concurrent habitat and life history influences on effective/census population size ratios in stream-dwelling trout." Ecology and Evolution 2(3): 562-573.
    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 ...
  • Avoidance of fisheries-induced evolution: management implications for catch selectivity and limit reference points 

    Hutchings, Jeffrey A.. 2009. "Avoidance of fisheries-induced evolution: management implications for catch selectivity and limit reference points." Evolutionary Applications 2(3): 324-334.
    I examined how the fitness (r) associated with early-and late-maturing genotypes varies with fishing mortality (F) and age-/size-specific probability of capture. Life-history data on Newfoundland's northern Atlantic cod ...
  • The Ecology of Atlantic Cod (Gadus morhua) in Canadian Arctic Lakes 

    Hardie, David C., and Jeffrey A. Hutchings. 2011. "The Ecology of Atlantic Cod (Gadus morhua) in Canadian Arctic Lakes." Arctic 64(2): 137-150.
    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 ...
  • Relative risks of inbreeding and outbreeding depression in the wild in endangered salmon 

    Houde, Aimee L. S., Dylan J. Fraser, Patrick O'Reilly, and Jeffrey A. Hutchings. 2011. "Relative risks of inbreeding and outbreeding depression in the wild in endangered salmon." Evolutionary Applications 4(5): 634-647.
    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 ...
  • The Influence of Operational Sex Ratio on the Intensity of Competition for Mates 

    Weir, Laura K., James W. A. Grant, and Jeffrey A. Hutchings. 2011. "The Influence of Operational Sex Ratio on the Intensity of Competition for Mates." American Naturalist 177(2): 167-176.
    The evolution and maintenance of secondary sexual characteristics and behavior are heavily influenced by the variance in mating success among individuals in a population. The operational sex ratio (OSR) is often used as ...
  • Potential for anthropogenic disturbances to influence evolutionary change in the life history of a threatened salmonid 

    Williams, John G., Richard W. Zabel, Robin S. Waples, Jeffrey A. Hutchings, et al. 2008. "Potential for anthropogenic disturbances to influence evolutionary change in the life history of a threatened salmonid." Evolutionary Applications 1(2): 271-285.
    Although evolutionary change within most species is thought to occur slowly, recent studies have identified cases where evolutionary change has apparently occurred over a few generations. Anthropogenically altered ...
  • Mixed evidence for reduced local adaptation in wild salmon resulting from interbreeding with escaped farmed salmon: complexities in hybrid fitness 

    Fraser, Dylan J., Adam M. Cook, James D. Eddington, Paul Bentzen, et al. 2008. "Mixed evidence for reduced local adaptation in wild salmon resulting from interbreeding with escaped farmed salmon: complexities in hybrid fitness." Evolutionary Applications 1(3): 501-512.
    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 ...
  • Consequences of farmed-wild hybridization across divergent wild populations and multiple traits in salmon 

    Fraser, Dylan J., Aimee Lee S. Houde, Paul V. Debes, Patrick O'Reilly, et al. 2010. "Consequences of farmed-wild hybridization across divergent wild populations and multiple traits in salmon." Ecological Applications 20(4): 935-953.
    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 ...