Evaluating how lethal management affects poaching of Mexican wolves
Despite illegal killing (poaching) being the major cause of death among large carnivores globally, little is known about the effect of implementing lethal management policies on poaching. Two opposing hypotheses have been proposed in the literature: implementing lethal management may decrease poachi...
| Main Authors: | , , , |
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| Format: | Dataset |
| Language: | unknown |
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2021
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| Subjects: | |
| Online Access: | https://zenodo.org/record/4582774 https://doi.org/10.5061/dryad.0vt4b8gxk |
| Summary: | Despite illegal killing (poaching) being the major cause of death among large carnivores globally, little is known about the effect of implementing lethal management policies on poaching. Two opposing hypotheses have been proposed in the literature: implementing lethal management may decrease poaching incidence ('killing for tolerance') or increase it ('facilitated killing'). Here, we propose a test of two opposed hypotheses that poaching (reported and unreported) of Mexican grey wolves (Canis lupus baileyi) in Arizona and New Mexico, USA, responded to changes in policy that relaxed protections to allow more wolf-killing. We employ advanced biostatistical survival and competing-risk methods to data on individual resightings, mortality, and disappearances of collared Mexican wolves. We aim to provide recommendations for improving the effectiveness of US policy on environmental crimes, endangered species, and protections for wild animals. Our results have implications beyond the USA or wolves because the methods promise to transform understanding, scientific methods, and management interventions of processes and patterns in human-caused mortality among wild animals subject to high rates of poaching. The OLE dataset does not contain information for all wolves in the MWRP dataset. The 'Cause_of_death_OLE.dta' dataset contains the OLE data, ready to merge with the formatted dataset (following the .do file in Supp Mat). Funding provided by: UCLA Animal Law & Policy Grants Program*Crossref Funder Registry ID: Award Number: Funding provided by: Therese Foundation*Crossref Funder Registry ID: Award Number: Funding provided by: UCLA Animal Law & Policy Grants ProgramCrossref Funder Registry ID: Funding provided by: Therese FoundationCrossref Funder Registry ID: We analyzed data acquired from the USFWS Mexican Wolf Recovery Program (MWRP, 'Survival2016-FOIA Request_To be Released copy.csv') and their Office of Law Enforcement (OLE, 'Final FWSLE FOIA Release copy.xlsx') in separate but overlapping datasets on ... |
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