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Assessing mammal trapping standards in wild boar drop-net capture

Applying contemporary trapping standards when managing wildlife should no longer be an option, but a duty. Increasing wild boar populations originate a growing number of conflicts and hunting is the only cost-effective management option in most cases. However, new scenarios where hunting is unfeasib...

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Autores principales: Conejero, Carles, López-Olvera, Jorge Ramón, González-Crespo, Carlos, Ráez-Bravo, Arián, Castillo-Contreras, Raquel, Tampach, Stefania, Velarde, Roser, Mentaberre, Gregorio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9445033/
https://www.ncbi.nlm.nih.gov/pubmed/36064859
http://dx.doi.org/10.1038/s41598-022-17407-5
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author Conejero, Carles
López-Olvera, Jorge Ramón
González-Crespo, Carlos
Ráez-Bravo, Arián
Castillo-Contreras, Raquel
Tampach, Stefania
Velarde, Roser
Mentaberre, Gregorio
author_facet Conejero, Carles
López-Olvera, Jorge Ramón
González-Crespo, Carlos
Ráez-Bravo, Arián
Castillo-Contreras, Raquel
Tampach, Stefania
Velarde, Roser
Mentaberre, Gregorio
author_sort Conejero, Carles
collection PubMed
description Applying contemporary trapping standards when managing wildlife should no longer be an option, but a duty. Increasing wild boar populations originate a growing number of conflicts and hunting is the only cost-effective management option in most cases. However, new scenarios where hunting is unfeasible emerge and trapping necessities cope with lacking regulatory frameworks and technical guidelines. In this research, we evaluated drop nets, a capture method not considered by the international trapping standards, to capture Eurasian wild boar (Sus scrofa), a wildlife species not included in the list of mammal species under the scope of the Agreement on International Humane Trapping Standards (AIHTS). Less than 20% of the captured wild boars presented moderate or severe injuries attributable to the capture method, hence fulfilling the acceptance thresholds of the outdated AIHTS. Based on the new standards thresholds of acceptance, the humaneness of drop-nets in our study ranged 66–78%, under the 85% required. The capture success and selectivity were 100%, as ensured by operator-driven triggering, which should be considered the main strengths of this method, together with the minimization of animal suffering owing the short duration of the stressful situation. Additionally, in spite of the socially adverse environment, with people contrary to wild boar removal, no disturbances against the capture system or operations occurred. This is the first assessment of a drop-net capture method according to internationally accepted mammal trapping standards, with unconclusive results. However, there is a need for adapted procedures and thresholds of acceptance aimed at not-mechanical traps in general, and specifically at drop-nets. Compared to other live-capture methods, drop-nets minimize the duration of the stressful situation —at the expense of a strong adrenergic acute response—, maximize the probabilities of capturing entire sounders of prosocial species, which may be also considered as more humane, and has the ability to coordinate higher values of capture success, absolute selectivity and adaptability to difficult environments.
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spelling pubmed-94450332022-09-07 Assessing mammal trapping standards in wild boar drop-net capture Conejero, Carles López-Olvera, Jorge Ramón González-Crespo, Carlos Ráez-Bravo, Arián Castillo-Contreras, Raquel Tampach, Stefania Velarde, Roser Mentaberre, Gregorio Sci Rep Article Applying contemporary trapping standards when managing wildlife should no longer be an option, but a duty. Increasing wild boar populations originate a growing number of conflicts and hunting is the only cost-effective management option in most cases. However, new scenarios where hunting is unfeasible emerge and trapping necessities cope with lacking regulatory frameworks and technical guidelines. In this research, we evaluated drop nets, a capture method not considered by the international trapping standards, to capture Eurasian wild boar (Sus scrofa), a wildlife species not included in the list of mammal species under the scope of the Agreement on International Humane Trapping Standards (AIHTS). Less than 20% of the captured wild boars presented moderate or severe injuries attributable to the capture method, hence fulfilling the acceptance thresholds of the outdated AIHTS. Based on the new standards thresholds of acceptance, the humaneness of drop-nets in our study ranged 66–78%, under the 85% required. The capture success and selectivity were 100%, as ensured by operator-driven triggering, which should be considered the main strengths of this method, together with the minimization of animal suffering owing the short duration of the stressful situation. Additionally, in spite of the socially adverse environment, with people contrary to wild boar removal, no disturbances against the capture system or operations occurred. This is the first assessment of a drop-net capture method according to internationally accepted mammal trapping standards, with unconclusive results. However, there is a need for adapted procedures and thresholds of acceptance aimed at not-mechanical traps in general, and specifically at drop-nets. Compared to other live-capture methods, drop-nets minimize the duration of the stressful situation —at the expense of a strong adrenergic acute response—, maximize the probabilities of capturing entire sounders of prosocial species, which may be also considered as more humane, and has the ability to coordinate higher values of capture success, absolute selectivity and adaptability to difficult environments. Nature Publishing Group UK 2022-09-05 /pmc/articles/PMC9445033/ /pubmed/36064859 http://dx.doi.org/10.1038/s41598-022-17407-5 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Conejero, Carles
López-Olvera, Jorge Ramón
González-Crespo, Carlos
Ráez-Bravo, Arián
Castillo-Contreras, Raquel
Tampach, Stefania
Velarde, Roser
Mentaberre, Gregorio
Assessing mammal trapping standards in wild boar drop-net capture
title Assessing mammal trapping standards in wild boar drop-net capture
title_full Assessing mammal trapping standards in wild boar drop-net capture
title_fullStr Assessing mammal trapping standards in wild boar drop-net capture
title_full_unstemmed Assessing mammal trapping standards in wild boar drop-net capture
title_short Assessing mammal trapping standards in wild boar drop-net capture
title_sort assessing mammal trapping standards in wild boar drop-net capture
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9445033/
https://www.ncbi.nlm.nih.gov/pubmed/36064859
http://dx.doi.org/10.1038/s41598-022-17407-5
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