Size, rarity and charisma: valuing African wildlife trophies

We explore variation in the prices paid by recreational hunters of trophy animals in Africa and its possible causes, including perceived rarity. Previous work has raised the possibility that extinction can result if demand rises fast enough as a species becomes rarer. We attempt to disentangle this...

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Main Authors: Johnson, P, Kansky, R, Loveridge, A, Macdonald, D
Format: Journal article
Language:English
Published: Public Library of Science 2010
Subjects:
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author Johnson, P
Kansky, R
Loveridge, A
Macdonald, D
author_facet Johnson, P
Kansky, R
Loveridge, A
Macdonald, D
author_sort Johnson, P
collection OXFORD
description We explore variation in the prices paid by recreational hunters of trophy animals in Africa and its possible causes, including perceived rarity. Previous work has raised the possibility that extinction can result if demand rises fast enough as a species becomes rarer. We attempt to disentangle this from other inter-correlated influences affecting price. Species with larger body sizes and larger trophies were more valuable. Value increased less steeply as a function of size for bovids than for felids and the effect was consistent across countries. Power laws, ubiquitous in physical and social systems, described the trends. The exponent was approximately 0.4 for bovids, compared with approximately 1.0 for felids. Rarity (as indexed by IUCN score) influenced the value of bovid trophies - price was higher for species in categories denoting higher global threat. There was substantial variation in price among and within families not explained by either size or rarity. This may be attributable to a 'charisma' effect, which seems likely to be general attribute of human perceptions of wildlife. Species where prices were higher than predicted by size or rarity are ranked high in published accounts of desirability by hunters. We conclude that the valuation of these species is explicable to a large extent by body size and perceived rarity, and that differences in valuation between taxonomic groups are related to less easily quantified 'charisma' effects. These findings are relevant for conservationists considering the threat status of species exploited in open access markets, and where license quotas are adjusted in response to changes in perceived rarity.
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spelling oxford-uuid:44a85d77-448f-49c1-8d8d-9163307442f32022-03-26T15:03:08ZSize, rarity and charisma: valuing African wildlife trophiesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:44a85d77-448f-49c1-8d8d-9163307442f3Zoological sciencesAfricaEnglishOxford University Research Archive - ValetPublic Library of Science2010Johnson, PKansky, RLoveridge, AMacdonald, DWe explore variation in the prices paid by recreational hunters of trophy animals in Africa and its possible causes, including perceived rarity. Previous work has raised the possibility that extinction can result if demand rises fast enough as a species becomes rarer. We attempt to disentangle this from other inter-correlated influences affecting price. Species with larger body sizes and larger trophies were more valuable. Value increased less steeply as a function of size for bovids than for felids and the effect was consistent across countries. Power laws, ubiquitous in physical and social systems, described the trends. The exponent was approximately 0.4 for bovids, compared with approximately 1.0 for felids. Rarity (as indexed by IUCN score) influenced the value of bovid trophies - price was higher for species in categories denoting higher global threat. There was substantial variation in price among and within families not explained by either size or rarity. This may be attributable to a 'charisma' effect, which seems likely to be general attribute of human perceptions of wildlife. Species where prices were higher than predicted by size or rarity are ranked high in published accounts of desirability by hunters. We conclude that the valuation of these species is explicable to a large extent by body size and perceived rarity, and that differences in valuation between taxonomic groups are related to less easily quantified 'charisma' effects. These findings are relevant for conservationists considering the threat status of species exploited in open access markets, and where license quotas are adjusted in response to changes in perceived rarity.
spellingShingle Zoological sciences
Africa
Johnson, P
Kansky, R
Loveridge, A
Macdonald, D
Size, rarity and charisma: valuing African wildlife trophies
title Size, rarity and charisma: valuing African wildlife trophies
title_full Size, rarity and charisma: valuing African wildlife trophies
title_fullStr Size, rarity and charisma: valuing African wildlife trophies
title_full_unstemmed Size, rarity and charisma: valuing African wildlife trophies
title_short Size, rarity and charisma: valuing African wildlife trophies
title_sort size rarity and charisma valuing african wildlife trophies
topic Zoological sciences
Africa
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