Conditioned odor aversion as a tool for reducing post-release predation during animal translocations

Predation is a key factor in prey population dynamics and could impact population recovery. One common means employed to recover prey populations is that of translocations, but most fail owing to high predation during the early stages. We tested whether conditioned odor aversion can reduce predation...

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Detalles Bibliográficos
Autores: Tobajas, Jorge, Descalzo, Esther, Villafuerte, Rafael, Jimenez, J, Mateo, R., Ferreras, Pablo
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/254293
Acceso en línea:http://hdl.handle.net/10261/254293
Access Level:acceso abierto
Palabra clave:BACI
conditioned odor aversion
conditioned taste aversion
post-release survival
predation
predator–prey relationship
reintroductions
translocations
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spelling Conditioned odor aversion as a tool for reducing post-release predation during animal translocationsTobajas, JorgeDescalzo, EstherVillafuerte, RafaelJimenez, JMateo, R.Ferreras, PabloBACIconditioned odor aversionconditioned taste aversionpost-release survivalpredationpredator–prey relationshipreintroductionstranslocationsPredation is a key factor in prey population dynamics and could impact population recovery. One common means employed to recover prey populations is that of translocations, but most fail owing to high predation during the early stages. We tested whether conditioned odor aversion can reduce predation during animal translocations by using the predation of the European rabbit Oryctolagus cuniculus by the red fox Vulpes vulpes as a case study. Following a before-after control-impact design (BACI), we deployed bait stations monitored using camera-traps in two zones to which rabbits were translocated. One week before the rabbits were released, microencapsulated levamisole was added to rabbit baits located in the treatment zones, along with vanilla essence as an odor cue. A total of 148 rabbits were distributed in artificial warrens with the odor cue and 68 of them were fitted with radio collars in order to determine their survival rates. The response to the treatment and translocation as regards subsequent rabbit abundance was evaluated using N-mixture models, while rabbit establishment was evaluated using a warren use index (WUI). The treatment decreased the proportion of baits consumed by foxes, but this decrease was partially compensated by other predators. WUI and rabbit population growth increased significantly more after translocations in the treatment zones than in the control zones. The short-term survival of translocated rabbits was also higher in the treatment zones than in the control zones. Our study showed that conditioned odor aversion reduced rabbit predation by foxes, and had a positive effect on rabbit population growth after translocation, since there was an increase in rabbit survival and warren establishment. This method could be used as a non-lethal tool for the recovery of a key prey when carrying out programs concerning the reintroduction of endangered predators or for other vulnerable species requiring translocations.Cambridge University PressConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2021202120212021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/254293reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1111/acv.12643Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2542932026-05-22T06:33:51Z
dc.title.none.fl_str_mv Conditioned odor aversion as a tool for reducing post-release predation during animal translocations
title Conditioned odor aversion as a tool for reducing post-release predation during animal translocations
spellingShingle Conditioned odor aversion as a tool for reducing post-release predation during animal translocations
Tobajas, Jorge
BACI
conditioned odor aversion
conditioned taste aversion
post-release survival
predation
predator–prey relationship
reintroductions
translocations
title_short Conditioned odor aversion as a tool for reducing post-release predation during animal translocations
title_full Conditioned odor aversion as a tool for reducing post-release predation during animal translocations
title_fullStr Conditioned odor aversion as a tool for reducing post-release predation during animal translocations
title_full_unstemmed Conditioned odor aversion as a tool for reducing post-release predation during animal translocations
title_sort Conditioned odor aversion as a tool for reducing post-release predation during animal translocations
dc.creator.none.fl_str_mv Tobajas, Jorge
Descalzo, Esther
Villafuerte, Rafael
Jimenez, J
Mateo, R.
Ferreras, Pablo
author Tobajas, Jorge
author_facet Tobajas, Jorge
Descalzo, Esther
Villafuerte, Rafael
Jimenez, J
Mateo, R.
Ferreras, Pablo
author_role author
author2 Descalzo, Esther
Villafuerte, Rafael
Jimenez, J
Mateo, R.
Ferreras, Pablo
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv BACI
conditioned odor aversion
conditioned taste aversion
post-release survival
predation
predator–prey relationship
reintroductions
translocations
topic BACI
conditioned odor aversion
conditioned taste aversion
post-release survival
predation
predator–prey relationship
reintroductions
translocations
description Predation is a key factor in prey population dynamics and could impact population recovery. One common means employed to recover prey populations is that of translocations, but most fail owing to high predation during the early stages. We tested whether conditioned odor aversion can reduce predation during animal translocations by using the predation of the European rabbit Oryctolagus cuniculus by the red fox Vulpes vulpes as a case study. Following a before-after control-impact design (BACI), we deployed bait stations monitored using camera-traps in two zones to which rabbits were translocated. One week before the rabbits were released, microencapsulated levamisole was added to rabbit baits located in the treatment zones, along with vanilla essence as an odor cue. A total of 148 rabbits were distributed in artificial warrens with the odor cue and 68 of them were fitted with radio collars in order to determine their survival rates. The response to the treatment and translocation as regards subsequent rabbit abundance was evaluated using N-mixture models, while rabbit establishment was evaluated using a warren use index (WUI). The treatment decreased the proportion of baits consumed by foxes, but this decrease was partially compensated by other predators. WUI and rabbit population growth increased significantly more after translocations in the treatment zones than in the control zones. The short-term survival of translocated rabbits was also higher in the treatment zones than in the control zones. Our study showed that conditioned odor aversion reduced rabbit predation by foxes, and had a positive effect on rabbit population growth after translocation, since there was an increase in rabbit survival and warren establishment. This method could be used as a non-lethal tool for the recovery of a key prey when carrying out programs concerning the reintroduction of endangered predators or for other vulnerable species requiring translocations.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/254293
url http://hdl.handle.net/10261/254293
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1111/acv.12643
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Cambridge University Press
publisher.none.fl_str_mv Cambridge University Press
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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