Traditional approaches to harvesting largely assume a population exists in isolation and that harvesting acts to primarily change the size and or composition of the population. Increasingly, however, evidence suggests that failure to consider secondary effects of harvesting may lead to decreased productivity, population decline and in some cases extirpation.
Cohort: 2017, 2018
Ecosystem based fisheries management
Galway Mayo Institute of Technology
Review of compensatory harvest theory
Harvesting populations within a community
Trophic interactions and Trophic cascades
Evolutionary effects of fishing and hunting
Demonstrate an understanding of the extant theory of harvesting
Discuss the latest research of secondary effects of population harvesting
Critically evaluate current methods to incorporate secondary effects
Explain implications of optimal population harvesting
Describe how to account for secondary impacts
Coltman, D.W, O'Donoghue, P., Jorgenson, J.T., Hogg, J.T., Strobeck, C. and Festa-
Bianchet, M. (2003). Undesirable evolutionary consequences of trophy hunting. Nature, 426, 655-658.
Allendorf, F.W., England, P.R., Luikart, G., Ritchie, P.A. and Ryman, N. (2008). Genetic effects of harvest on wild animal populations. Trends in Ecology and Evolution, 23(6), 327
Allendorf, F.W. and Hard, J.J. (2010). Human-induced evolution caused by unnatural selection through harvest of wild animals. Proceedings of the National Academy of Sciences, 106, p9987-9994.
Frank, K.T., Petrie, B., Choi, J.S. and Leggett, W.C. (2005). Trophic Cascades in a Formerly Cod-Dominated Ecosystem. Science, 308, 1621-1623.
Link, J.S. (2010). Ecosystem-Based Fisheries Management: Confronting Tradeoffs. Cambridge University Press, Cambridge, UK
All assessments are formative and summative, they contribute to the module grade. The module is 100% continuous assessment with no terminal examination. Practical assignments, group discussions and class presentations will be used to assess the learning outcomes on an ongoing basis.
3 hours per week, lectures, group discussion, case study readings
3 - scenario role playing, presentations