Blood does not buy goodwill: allowing culling increases poaching of a large carnivore.
Quantifying environmental crime and the effectiveness of policy interventions is difficult because perpetrators typically conceal evidence. To prevent illegal uses of natural resources, such as poaching endangered species, governments have advocated granting policy flexibility to local authorities b...
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1001 60 69 Research Articles conservation illegal hunting policy signal large carnivore wolf General Biochemistry Genetics and Molecular Biology General Immunology and Microbiology General Agricultural and Biological Sciences General Environmental Science General Medicine envir scipo |
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1001 60 69 Research Articles conservation illegal hunting policy signal large carnivore wolf General Biochemistry Genetics and Molecular Biology General Immunology and Microbiology General Agricultural and Biological Sciences General Environmental Science General Medicine envir scipo Adrian Treves Guillaume Chapron Blood does not buy goodwill: allowing culling increases poaching of a large carnivore. |
topic_facet |
1001 60 69 Research Articles conservation illegal hunting policy signal large carnivore wolf General Biochemistry Genetics and Molecular Biology General Immunology and Microbiology General Agricultural and Biological Sciences General Environmental Science General Medicine envir scipo |
description |
Quantifying environmental crime and the effectiveness of policy interventions is difficult because perpetrators typically conceal evidence. To prevent illegal uses of natural resources, such as poaching endangered species, governments have advocated granting policy flexibility to local authorities by liberalizing culling or hunting of large carnivores. We present the first quantitative evaluation of the hypothesis that liberalizing culling will reduce poaching and improve population status of an endangered carnivore. We show that allowing wolf ( Canis lupus ) culling was substantially more likely to increase poaching than reduce it. Replicated, quasi-experimental changes in wolf policies in Wisconsin and Michigan, USA, revealed that a repeated policy signal to allow state culling triggered repeated slowdowns in wolf population growth, irrespective of the policy implementation measured as the number of wolves killed. The most likely explanation for these slowdowns was poaching and alternative explanations found no support. When the government kills a protected species, the perceived value of each individual of that species may decline; so liberalizing wolf culling may have sent a negative message about the value of wolves or acceptability of poaching. Our results suggest that granting management flexibility for endangered species to address illegal behaviour may instead promote such behaviour. |
format |
Article in Journal/Newspaper |
author |
Adrian Treves Guillaume Chapron |
author_facet |
Adrian Treves Guillaume Chapron |
author_sort |
Adrian Treves |
title |
Blood does not buy goodwill: allowing culling increases poaching of a large carnivore. |
title_short |
Blood does not buy goodwill: allowing culling increases poaching of a large carnivore. |
title_full |
Blood does not buy goodwill: allowing culling increases poaching of a large carnivore. |
title_fullStr |
Blood does not buy goodwill: allowing culling increases poaching of a large carnivore. |
title_full_unstemmed |
Blood does not buy goodwill: allowing culling increases poaching of a large carnivore. |
title_sort |
blood does not buy goodwill: allowing culling increases poaching of a large carnivore. |
publishDate |
2016 |
url |
https://www.wolfandwildlifestudies.com/downloads/cullingincreasespoaching.pdf https://biologicaldiversity.org/campaigns/gray_wolves/pdfs/Treves_and_Chapron_Allowing_culling_increases_poaching_of_a_large_carnivore_2016.pdf http://wolfwatcher.org/dashboard/wp-content/uploads/2016/05/Blood-Does-not-Buy-Goodwill.pdf http://biologicaldiversity.org/campaigns/gray_wolves/pdfs/Treves_and_Chapron_Allowing_culling_increases_poaching_of_a_large_carnivore_2016.pdf https://doi.org/10.1098/rspb.2015.2939 http://europepmc.org/articles/PMC4874699 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2015.2939 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2015.2939 https://royalsocietypublishing.org/doi/10.1098/rspb.2015.2939 https://www.ncbi.nlm.nih.gov/pubmed/27170719 http://europepmc.org/abstract/MED/27170719 https://rspb.royalsocietypublishing.org/content/283/1830/20152939 https://academic.microsoft.com/#/detail/2360921272 |
genre |
Canis lupus |
genre_facet |
Canis lupus |
op_source |
29167355 10.1098/rspb.2015.2939 oai:pubmedcentral.nih.gov:4874699 2360921272 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c 10|openaire____::55045bd2a65019fd8e6741a755395c8c 10|opendoar____::eda80a3d5b344bc40f3bc04f65b7a357 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|issn___print::a941ba918ee7dd850619e823995f4257 10|openaire____::8ac8380272269217cb09a928c8caa993 10|openaire____::5f532a3fc4f1ea403f37070f59a7a53a 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|openaire____::806360c771262b4d6770e7cdf04b5c5a |
op_relation |
https://www.wolfandwildlifestudies.com/downloads/cullingincreasespoaching.pdf https://biologicaldiversity.org/campaigns/gray_wolves/pdfs/Treves_and_Chapron_Allowing_culling_increases_poaching_of_a_large_carnivore_2016.pdf http://wolfwatcher.org/dashboard/wp-content/uploads/2016/05/Blood-Does-not-Buy-Goodwill.pdf http://biologicaldiversity.org/campaigns/gray_wolves/pdfs/Treves_and_Chapron_Allowing_culling_increases_poaching_of_a_large_carnivore_2016.pdf https://dx.doi.org/10.1098/rspb.2015.2939 http://europepmc.org/articles/PMC4874699 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2015.2939 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2015.2939 http://dx.doi.org/10.1098/rspb.2015.2939 https://royalsocietypublishing.org/doi/10.1098/rspb.2015.2939 https://www.ncbi.nlm.nih.gov/pubmed/27170719 http://europepmc.org/abstract/MED/27170719 https://rspb.royalsocietypublishing.org/content/283/1830/20152939 https://academic.microsoft.com/#/detail/2360921272 |
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lic_creative-commons |
op_doi |
https://doi.org/10.1098/rspb.2015.2939 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
283 |
container_issue |
1830 |
container_start_page |
20152939 |
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1766385690553090048 |
spelling |
fttriple:oai:gotriple.eu:50|dedup_wf_001::f69183fe5c190c7da2d81b864e0851dc 2023-05-15T15:50:41+02:00 Blood does not buy goodwill: allowing culling increases poaching of a large carnivore. Adrian Treves Guillaume Chapron 2016-05-11 https://www.wolfandwildlifestudies.com/downloads/cullingincreasespoaching.pdf https://biologicaldiversity.org/campaigns/gray_wolves/pdfs/Treves_and_Chapron_Allowing_culling_increases_poaching_of_a_large_carnivore_2016.pdf http://wolfwatcher.org/dashboard/wp-content/uploads/2016/05/Blood-Does-not-Buy-Goodwill.pdf http://biologicaldiversity.org/campaigns/gray_wolves/pdfs/Treves_and_Chapron_Allowing_culling_increases_poaching_of_a_large_carnivore_2016.pdf https://doi.org/10.1098/rspb.2015.2939 http://europepmc.org/articles/PMC4874699 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2015.2939 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2015.2939 https://royalsocietypublishing.org/doi/10.1098/rspb.2015.2939 https://www.ncbi.nlm.nih.gov/pubmed/27170719 http://europepmc.org/abstract/MED/27170719 https://rspb.royalsocietypublishing.org/content/283/1830/20152939 https://academic.microsoft.com/#/detail/2360921272 undefined unknown https://www.wolfandwildlifestudies.com/downloads/cullingincreasespoaching.pdf https://biologicaldiversity.org/campaigns/gray_wolves/pdfs/Treves_and_Chapron_Allowing_culling_increases_poaching_of_a_large_carnivore_2016.pdf http://wolfwatcher.org/dashboard/wp-content/uploads/2016/05/Blood-Does-not-Buy-Goodwill.pdf http://biologicaldiversity.org/campaigns/gray_wolves/pdfs/Treves_and_Chapron_Allowing_culling_increases_poaching_of_a_large_carnivore_2016.pdf https://dx.doi.org/10.1098/rspb.2015.2939 http://europepmc.org/articles/PMC4874699 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2015.2939 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2015.2939 http://dx.doi.org/10.1098/rspb.2015.2939 https://royalsocietypublishing.org/doi/10.1098/rspb.2015.2939 https://www.ncbi.nlm.nih.gov/pubmed/27170719 http://europepmc.org/abstract/MED/27170719 https://rspb.royalsocietypublishing.org/content/283/1830/20152939 https://academic.microsoft.com/#/detail/2360921272 lic_creative-commons 29167355 10.1098/rspb.2015.2939 oai:pubmedcentral.nih.gov:4874699 2360921272 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c 10|openaire____::55045bd2a65019fd8e6741a755395c8c 10|opendoar____::eda80a3d5b344bc40f3bc04f65b7a357 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|issn___print::a941ba918ee7dd850619e823995f4257 10|openaire____::8ac8380272269217cb09a928c8caa993 10|openaire____::5f532a3fc4f1ea403f37070f59a7a53a 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|openaire____::806360c771262b4d6770e7cdf04b5c5a 1001 60 69 Research Articles conservation illegal hunting policy signal large carnivore wolf General Biochemistry Genetics and Molecular Biology General Immunology and Microbiology General Agricultural and Biological Sciences General Environmental Science General Medicine envir scipo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2016 fttriple https://doi.org/10.1098/rspb.2015.2939 2023-01-22T17:15:40Z Quantifying environmental crime and the effectiveness of policy interventions is difficult because perpetrators typically conceal evidence. To prevent illegal uses of natural resources, such as poaching endangered species, governments have advocated granting policy flexibility to local authorities by liberalizing culling or hunting of large carnivores. We present the first quantitative evaluation of the hypothesis that liberalizing culling will reduce poaching and improve population status of an endangered carnivore. We show that allowing wolf ( Canis lupus ) culling was substantially more likely to increase poaching than reduce it. Replicated, quasi-experimental changes in wolf policies in Wisconsin and Michigan, USA, revealed that a repeated policy signal to allow state culling triggered repeated slowdowns in wolf population growth, irrespective of the policy implementation measured as the number of wolves killed. The most likely explanation for these slowdowns was poaching and alternative explanations found no support. When the government kills a protected species, the perceived value of each individual of that species may decline; so liberalizing wolf culling may have sent a negative message about the value of wolves or acceptability of poaching. Our results suggest that granting management flexibility for endangered species to address illegal behaviour may instead promote such behaviour. Article in Journal/Newspaper Canis lupus Unknown Proceedings of the Royal Society B: Biological Sciences 283 1830 20152939 |