REN R474 Lecture Notes - Lecture 6: Waterfowl Hunting, Sustainable Yield, Population Biology
25 Oct 2016
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Managing harvested populations: population biology principles, harvest models, harvest management strategies. Hunting as a selective force: harvest selection on body size can cascade into demographic consequences because genotypes that grow slower and reproduce earlier are favoured, ex. Monday, october 24, 2016: as population per capital growth rate increases the population size will decrease, transformed it time vs. population size (population size will increase until the point at which it will stabilize). Maximum sustained yield: problem we don"t usually know the actual carrying capacity (often get it wrong). Fixed effort proportionally as the population increases the catch rate will increase as a proportion of the population size. Allows growth of the population and growth of the catch. Allows harvest to occur after a certain population size is passed or reached. Example - moose populations having issues with human safety (if escapement increases allow more tags to be issued so that population size can be maintained).
