Predicting the evolutionary consequences of trophy hunting on a quantitative trait

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...

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Váldodahkkit: Coulson, T, Schindler, S, Traill, L, Kendall, B
Materiálatiipa: Journal article
Almmustuhtton: Wiley 2017
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author Coulson, T
Schindler, S
Traill, L
Kendall, B
author_facet Coulson, T
Schindler, S
Traill, L
Kendall, B
author_sort Coulson, T
collection OXFORD
description 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.
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spelling oxford-uuid:bcc0c52a-1c51-4eaa-a4e8-ae3defeac5f82022-03-27T05:26:43ZPredicting the evolutionary consequences of trophy hunting on a quantitative traitJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:bcc0c52a-1c51-4eaa-a4e8-ae3defeac5f8Symplectic Elements at OxfordWiley2017Coulson, TSchindler, STraill, LKendall, BSome 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.
spellingShingle Coulson, T
Schindler, S
Traill, L
Kendall, B
Predicting the evolutionary consequences of trophy hunting on a quantitative trait
title Predicting the evolutionary consequences of trophy hunting on a quantitative trait
title_full Predicting the evolutionary consequences of trophy hunting on a quantitative trait
title_fullStr Predicting the evolutionary consequences of trophy hunting on a quantitative trait
title_full_unstemmed Predicting the evolutionary consequences of trophy hunting on a quantitative trait
title_short Predicting the evolutionary consequences of trophy hunting on a quantitative trait
title_sort predicting the evolutionary consequences of trophy hunting on a quantitative trait
work_keys_str_mv AT coulsont predictingtheevolutionaryconsequencesoftrophyhuntingonaquantitativetrait
AT schindlers predictingtheevolutionaryconsequencesoftrophyhuntingonaquantitativetrait
AT trailll predictingtheevolutionaryconsequencesoftrophyhuntingonaquantitativetrait
AT kendallb predictingtheevolutionaryconsequencesoftrophyhuntingonaquantitativetrait