How sensitive and specific is the visual diagnosis of sarcoptic mange in free-ranging Iberian ibexes?

Background: Sarcoptic mange is a broadly distributed parasitic disease caused by Sarcoptes scabiei that affects wild mammals from all over the world, including the Iberian ibex (Capra pyrenaica). Selective culling of the scabietic individuals is the main management measure for disease control in Ibe...

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Autores: Valldeperes, Marta|||0000-0002-6178-3147, Granados Torres, José Enrique|||0000-0002-9787-9896, Pérez Jiménez, Jesús María|||0000-0001-9159-0365, Castro, Inmaculada, Ráez-Bravo, Arián|||0000-0002-3190-1659, Fandos, Paulino|||0000-0002-9607-8931, López Olvera, Jorge R.|||0000-0002-2999-3451, Serrano Ferron, Emmanuel|||0000-0002-9799-9804, Mentaberre García, Gregorio|||0000-0001-9542-7514
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:223156
Acceso en línea:https://ddd.uab.cat/record/223156
https://dx.doi.org/urn:doi:10.1186/s13071-019-3665-7
Access Level:acceso abierto
Palabra clave:Animals salvatges
Malalties
Cabres
Sarcoptes scabiei
Wildlife disease management
Visual diagnostic
Selective culling
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spelling How sensitive and specific is the visual diagnosis of sarcoptic mange in free-ranging Iberian ibexes?Valldeperes, Marta|||0000-0002-6178-3147Granados Torres, José Enrique|||0000-0002-9787-9896Pérez Jiménez, Jesús María|||0000-0001-9159-0365Castro, InmaculadaRáez-Bravo, Arián|||0000-0002-3190-1659Fandos, Paulino|||0000-0002-9607-8931López Olvera, Jorge R.|||0000-0002-2999-3451Serrano Ferron, Emmanuel|||0000-0002-9799-9804Mentaberre García, Gregorio|||0000-0001-9542-7514Animals salvatgesMalaltiesCabresSarcoptes scabieiWildlife disease managementVisual diagnosticSelective cullingBackground: Sarcoptic mange is a broadly distributed parasitic disease caused by Sarcoptes scabiei that affects wild mammals from all over the world, including the Iberian ibex (Capra pyrenaica). Selective culling of the scabietic individuals is the main management measure for disease control in Iberian ibex populations. Although visual identification of mange-compatible lesions is the reference method to decide the target individual, both false negative and positive cases are common in the wild. The aim of this work is to determine the sensitivity (SE), and the specificity (SP) of selective culling after evaluating 403 ibexes hunted in the Sierra Nevada Nature Space for sarcoptic mange control between 2002 and 2015. Methods: A combination of skin scrapings and potassium hidroxide (KOH) skin digestion was used for sarcoptic mange diagnosis. Generalized linear models (GLM) were used to assess the effects of sex, age (juveniles and adults) and period of the year (wet and dry periods) on the SE and SP of the visual diagnosis method. Results: The SE obtained for the visual determination of scabietic ibexes was 87.14%, whereas the SP was 60.71%. According to our model selection, SE of the visual diagnosis was explained by the additive effects of age and the period of the year. In fact, SE was lower in juveniles (64.76%) than in adults (94.26%) and during the dry period (73.44%) as compared to the wet period (92.09%). On the other hand, SP was best explained by the GLM including the additive effects of sex and the period of the year. The visual diagnosis of sarcoptic mange resulted less specific in females (22.73%) than in males (74.19%) and during the wet (55.22%) than in the dry period (82.35%). Conclusions: Maximizing SE and SP is essential to achieving a high rate of removal of affected individuals from the environment without eliminating potentially resistant individuals. Selective culling must be conservative during the wet period and with females due to the lower SP. Conversely, visual diagnosis of scabietic juveniles and during the dry period has to be improved, due to the lower SE. 22019-01-0120192019-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/223156https://dx.doi.org/urn:doi:10.1186/s13071-019-3665-7reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengAgència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2018FI_B_00978Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 CGL2012-40043-C02-01Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 CGL2016-80543-PMinisterio de Economía y Competitividad https://doi.org/10.13039/501100003329 CGL2012-40043-C02-02open accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2231562026-06-06T12:50:31Z
dc.title.none.fl_str_mv How sensitive and specific is the visual diagnosis of sarcoptic mange in free-ranging Iberian ibexes?
title How sensitive and specific is the visual diagnosis of sarcoptic mange in free-ranging Iberian ibexes?
spellingShingle How sensitive and specific is the visual diagnosis of sarcoptic mange in free-ranging Iberian ibexes?
Valldeperes, Marta|||0000-0002-6178-3147
Animals salvatges
Malalties
Cabres
Sarcoptes scabiei
Wildlife disease management
Visual diagnostic
Selective culling
title_short How sensitive and specific is the visual diagnosis of sarcoptic mange in free-ranging Iberian ibexes?
title_full How sensitive and specific is the visual diagnosis of sarcoptic mange in free-ranging Iberian ibexes?
title_fullStr How sensitive and specific is the visual diagnosis of sarcoptic mange in free-ranging Iberian ibexes?
title_full_unstemmed How sensitive and specific is the visual diagnosis of sarcoptic mange in free-ranging Iberian ibexes?
title_sort How sensitive and specific is the visual diagnosis of sarcoptic mange in free-ranging Iberian ibexes?
dc.creator.none.fl_str_mv Valldeperes, Marta|||0000-0002-6178-3147
Granados Torres, José Enrique|||0000-0002-9787-9896
Pérez Jiménez, Jesús María|||0000-0001-9159-0365
Castro, Inmaculada
Ráez-Bravo, Arián|||0000-0002-3190-1659
Fandos, Paulino|||0000-0002-9607-8931
López Olvera, Jorge R.|||0000-0002-2999-3451
Serrano Ferron, Emmanuel|||0000-0002-9799-9804
Mentaberre García, Gregorio|||0000-0001-9542-7514
author Valldeperes, Marta|||0000-0002-6178-3147
author_facet Valldeperes, Marta|||0000-0002-6178-3147
Granados Torres, José Enrique|||0000-0002-9787-9896
Pérez Jiménez, Jesús María|||0000-0001-9159-0365
Castro, Inmaculada
Ráez-Bravo, Arián|||0000-0002-3190-1659
Fandos, Paulino|||0000-0002-9607-8931
López Olvera, Jorge R.|||0000-0002-2999-3451
Serrano Ferron, Emmanuel|||0000-0002-9799-9804
Mentaberre García, Gregorio|||0000-0001-9542-7514
author_role author
author2 Granados Torres, José Enrique|||0000-0002-9787-9896
Pérez Jiménez, Jesús María|||0000-0001-9159-0365
Castro, Inmaculada
Ráez-Bravo, Arián|||0000-0002-3190-1659
Fandos, Paulino|||0000-0002-9607-8931
López Olvera, Jorge R.|||0000-0002-2999-3451
Serrano Ferron, Emmanuel|||0000-0002-9799-9804
Mentaberre García, Gregorio|||0000-0001-9542-7514
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Animals salvatges
Malalties
Cabres
Sarcoptes scabiei
Wildlife disease management
Visual diagnostic
Selective culling
topic Animals salvatges
Malalties
Cabres
Sarcoptes scabiei
Wildlife disease management
Visual diagnostic
Selective culling
description Background: Sarcoptic mange is a broadly distributed parasitic disease caused by Sarcoptes scabiei that affects wild mammals from all over the world, including the Iberian ibex (Capra pyrenaica). Selective culling of the scabietic individuals is the main management measure for disease control in Iberian ibex populations. Although visual identification of mange-compatible lesions is the reference method to decide the target individual, both false negative and positive cases are common in the wild. The aim of this work is to determine the sensitivity (SE), and the specificity (SP) of selective culling after evaluating 403 ibexes hunted in the Sierra Nevada Nature Space for sarcoptic mange control between 2002 and 2015. Methods: A combination of skin scrapings and potassium hidroxide (KOH) skin digestion was used for sarcoptic mange diagnosis. Generalized linear models (GLM) were used to assess the effects of sex, age (juveniles and adults) and period of the year (wet and dry periods) on the SE and SP of the visual diagnosis method. Results: The SE obtained for the visual determination of scabietic ibexes was 87.14%, whereas the SP was 60.71%. According to our model selection, SE of the visual diagnosis was explained by the additive effects of age and the period of the year. In fact, SE was lower in juveniles (64.76%) than in adults (94.26%) and during the dry period (73.44%) as compared to the wet period (92.09%). On the other hand, SP was best explained by the GLM including the additive effects of sex and the period of the year. The visual diagnosis of sarcoptic mange resulted less specific in females (22.73%) than in males (74.19%) and during the wet (55.22%) than in the dry period (82.35%). Conclusions: Maximizing SE and SP is essential to achieving a high rate of removal of affected individuals from the environment without eliminating potentially resistant individuals. Selective culling must be conservative during the wet period and with females due to the lower SP. Conversely, visual diagnosis of scabietic juveniles and during the dry period has to be improved, due to the lower SE.
publishDate 2019
dc.date.none.fl_str_mv 2
2019-01-01
2019
2019-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/223156
https://dx.doi.org/urn:doi:10.1186/s13071-019-3665-7
url https://ddd.uab.cat/record/223156
https://dx.doi.org/urn:doi:10.1186/s13071-019-3665-7
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2018FI_B_00978
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 CGL2012-40043-C02-01
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 CGL2016-80543-P
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 CGL2012-40043-C02-02
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
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