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Predicting the evolutionary consequences of trophy hunting on a quantitative trait

Coulson, T, Schindler, S, Traill, LW and Kendall, BE (2017) Predicting the evolutionary consequences of trophy hunting on a quantitative trait. The Journal of Wildlife Management, 82 (1). pp. 46-56. ISSN 0022-541X

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Open Access URL: https://doi.org/10.1002/jwmg.21261 (Published version)

Abstract

Some ecologists suggest that trophy hunting (e.g., harvesting males with a desirable trait above a certain size) can lead to rapid phenotypic change, which has led to an ongoing discussion about evolutionary consequences of trophy hunting. Claims of rapid evolution come from the statistical analyses of data, with no examination of whether these results are theoretically plausible. We constructed simple quantitative genetic models to explore how a range of hunting scenarios affects the evolution of a trophy such as horn length. We show that trophy hunting does lead to trophy evolution defined as change in the mean breeding value of the trait. However, the fastest rates of phenotypic change attributable to trophy hunting via evolution that are theoretically possible under standard assumptions of quantitative genetics are 1–2 orders of magnitude slower than the fastest rates of phenotypic change reported from statistical analyses. Our work suggests a re‐evaluation of the likely evolutionary consequences of trophy hunting would be appropriate when setting policy. Our work does not consider the ethical or ecological consequences of trophy hunting.

Item Type: Article
Uncontrolled Keywords: 05 Environmental Sciences, 06 Biological Sciences, 07 Agricultural and Veterinary Sciences
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Q Science > QL Zoology
Divisions: Biological & Environmental Sciences (new Sep 19)
Publisher: Wiley
Date Deposited: 08 Oct 2019 09:51
Last Modified: 08 Oct 2019 09:51
DOI or Identification number: 10.1002/jwmg.21261
URI: http://researchonline.ljmu.ac.uk/id/eprint/11487

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