Estimating the population density of Iberan wild goat Capra pyrenaica and mouflon Ovis aries in a Mediterranean forest environment

Aim of study: To manage and conserve wild populations effectively, a good understating of population density is critical. During 2010, the density of Iberian wild goat Capra pyrenaica and mouflon Ovis aries were estimated. Area of study: The area is situated in Muela de Cortes Game Reservation (Spai...

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Autores: Torres, R. T., Herrero Cortés, Juan, Prada, Carlos, García Serrano, Alicia, Fernández-Arberas, Olatz, García-Post, R
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/98775
Acceso en línea:http://hdl.handle.net/10261/98775
Access Level:acceso abierto
Palabra clave:itineraries
Distance sampling
sustainable monitoring
Capra pyrenaica
Ovis aries
game reservation.
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spelling Estimating the population density of Iberan wild goat Capra pyrenaica and mouflon Ovis aries in a Mediterranean forest environmentTorres, R. T.Herrero Cortés, JuanPrada, CarlosGarcía Serrano, AliciaFernández-Arberas, OlatzGarcía-Post, RitinerariesDistance samplingsustainable monitoringCapra pyrenaicaOvis ariesgame reservation.Aim of study: To manage and conserve wild populations effectively, a good understating of population density is critical. During 2010, the density of Iberian wild goat Capra pyrenaica and mouflon Ovis aries were estimated. Area of study: The area is situated in Muela de Cortes Game Reservation (Spain), a Mediterranean forest plateau, after a mange Sarcoptes scabiei outbreak that affected both species. Material and methods: To measure the abundance, sex ratio and productivity of the Iberian wild goat and mouflon. Field work was conducted during spring (after parturition) and autumn (during rut) by walking along itineraries, using a Distance Sampling approach. Main results: Based on DS, the best relative fit of model and adjustment term for Iberian wild goat was hazard-rate cosine, based on the lowest AIC score. The average density for Iberian wild goat was 4 km-2 (95% CI: 2,3-6,9) (after parturition) and 3,6 km-2 (95% CI: 2-6.6) (during rut). Average estimation was 1,422 goats (95% CI: 813-2,487) after parturition and 1,308 during rut (95% CI: 725- 2,362). Mouflon best relative fit of model and adjustment term was uniform cosine after parturition, based on the lowest AIC score. The best relative fit of model and adjustment term for mouflon was hazard-rate cosine, based on the lowest AIC score. The average density was 6.8 mouflon km-2 (95% CI: 4.7-9,9) after parturition and 7,4 mouflon km-2 (95% CI: 4,4 -12,5) during rut. Average estimation was 2,440 mouflon after parturition (95% CI: 1,673-3,558) and 2,678 during rut (95% CI: 1,589-4,515). Research highlights: The area represents one of the largest continental free-living populations of mouflon in Europe and a relevant area for Iberian wild goat, where it has survived for centuries and spread into the East Iberia. This study suggests that the survey methods used are suitable and sustainable with available field personnel for quantifying changes in wild goat and mouflon populations, particularly in rugged forest environments. Monitoring should be continued and be part of the development of a comprehensive management programme for Iberian wild goat and mouflon.We are grateful to all the rangers of the MC for their valuable assistance in field work and itinerary design. This work is part of the long-term monitoring of both species in MC, financed by the Regional Government of Valencia.Peer Reviewed2014201420142014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/98775reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.5424/fs/2014231-03322info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/987752026-05-22T06:33:51Z
dc.title.none.fl_str_mv Estimating the population density of Iberan wild goat Capra pyrenaica and mouflon Ovis aries in a Mediterranean forest environment
title Estimating the population density of Iberan wild goat Capra pyrenaica and mouflon Ovis aries in a Mediterranean forest environment
spellingShingle Estimating the population density of Iberan wild goat Capra pyrenaica and mouflon Ovis aries in a Mediterranean forest environment
Torres, R. T.
itineraries
Distance sampling
sustainable monitoring
Capra pyrenaica
Ovis aries
game reservation.
title_short Estimating the population density of Iberan wild goat Capra pyrenaica and mouflon Ovis aries in a Mediterranean forest environment
title_full Estimating the population density of Iberan wild goat Capra pyrenaica and mouflon Ovis aries in a Mediterranean forest environment
title_fullStr Estimating the population density of Iberan wild goat Capra pyrenaica and mouflon Ovis aries in a Mediterranean forest environment
title_full_unstemmed Estimating the population density of Iberan wild goat Capra pyrenaica and mouflon Ovis aries in a Mediterranean forest environment
title_sort Estimating the population density of Iberan wild goat Capra pyrenaica and mouflon Ovis aries in a Mediterranean forest environment
dc.creator.none.fl_str_mv Torres, R. T.
Herrero Cortés, Juan
Prada, Carlos
García Serrano, Alicia
Fernández-Arberas, Olatz
García-Post, R
author Torres, R. T.
author_facet Torres, R. T.
Herrero Cortés, Juan
Prada, Carlos
García Serrano, Alicia
Fernández-Arberas, Olatz
García-Post, R
author_role author
author2 Herrero Cortés, Juan
Prada, Carlos
García Serrano, Alicia
Fernández-Arberas, Olatz
García-Post, R
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv itineraries
Distance sampling
sustainable monitoring
Capra pyrenaica
Ovis aries
game reservation.
topic itineraries
Distance sampling
sustainable monitoring
Capra pyrenaica
Ovis aries
game reservation.
description Aim of study: To manage and conserve wild populations effectively, a good understating of population density is critical. During 2010, the density of Iberian wild goat Capra pyrenaica and mouflon Ovis aries were estimated. Area of study: The area is situated in Muela de Cortes Game Reservation (Spain), a Mediterranean forest plateau, after a mange Sarcoptes scabiei outbreak that affected both species. Material and methods: To measure the abundance, sex ratio and productivity of the Iberian wild goat and mouflon. Field work was conducted during spring (after parturition) and autumn (during rut) by walking along itineraries, using a Distance Sampling approach. Main results: Based on DS, the best relative fit of model and adjustment term for Iberian wild goat was hazard-rate cosine, based on the lowest AIC score. The average density for Iberian wild goat was 4 km-2 (95% CI: 2,3-6,9) (after parturition) and 3,6 km-2 (95% CI: 2-6.6) (during rut). Average estimation was 1,422 goats (95% CI: 813-2,487) after parturition and 1,308 during rut (95% CI: 725- 2,362). Mouflon best relative fit of model and adjustment term was uniform cosine after parturition, based on the lowest AIC score. The best relative fit of model and adjustment term for mouflon was hazard-rate cosine, based on the lowest AIC score. The average density was 6.8 mouflon km-2 (95% CI: 4.7-9,9) after parturition and 7,4 mouflon km-2 (95% CI: 4,4 -12,5) during rut. Average estimation was 2,440 mouflon after parturition (95% CI: 1,673-3,558) and 2,678 during rut (95% CI: 1,589-4,515). Research highlights: The area represents one of the largest continental free-living populations of mouflon in Europe and a relevant area for Iberian wild goat, where it has survived for centuries and spread into the East Iberia. This study suggests that the survey methods used are suitable and sustainable with available field personnel for quantifying changes in wild goat and mouflon populations, particularly in rugged forest environments. Monitoring should be continued and be part of the development of a comprehensive management programme for Iberian wild goat and mouflon.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014
2014
2014
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/98775
url http://hdl.handle.net/10261/98775
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.5424/fs/2014231-03322
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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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score 15,812429

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