The synzootic potential of common epidemics in chamois populations
Garrido-Amaro, Cristina (Universitat Autònoma de Barcelona. Servei d'Ecopatologia de Fauna Salvatge)
Jolles, A. (Oregon State University. Department of Biomedical Sciences)
Velarde, Roser (Universitat Autònoma de Barcelona. Departament de Medicina i Cirurgia Animals)
López Olvera, Jorge R. (Universitat Autònoma de Barcelona. Departament de Sanitat i d'Anatomia Animals)
Serrano Ferron, Emmanuel (Universitat Autònoma de Barcelona. Servei d'Ecopatologia de Fauna Salvatge)

Date:	2023
Abstract:	Southern chamois (Rupicapra pyrenaica) is a medium-sized and gregarious mountain ungulate with populations affected by periodic outbreaks of border disease virus (BD), infectious keratoconjunctivitis (IKC), and sarcoptic mange (SM). Even though the impact of each disease on chamois populations has been described in detail, there is a lack of information about the potential impact of concomitant epidemics and the synzootic potential (co-occurring enzootic or epizootic processes producing worse health outcomes in wildlife) on chamois populations. Furthermore, whether a specific order of apparition of epidemics is more or less harmful for the host population is practically unknown not only for chamois but also for most mammal populations. Using a population viability analysis (PVA), we studied the consequences of multiple disease outbreaks with synzootic potential on growth rates and probabilities of extinction of virtual populations exposed to hard winters, density dependence, and co-occurring BD, IKC, and SM outbreaks. Such infections are not under cross-immunity nor density-dependent processes and thus are supposed to affect population demography independently. Heavy snowfalls are also likely to occur in our simulated populations. Our simulations showed that a second outbreak, even caused by a low virulent pathogen, causes an increase in the probability of extinction of the host population with regard to the first outbreak. IKC-BD- and SM-BD-affected populations had a higher risk of becoming extinct in 50 years confirming the extra risk of multiple outbreaks on the viability of the affected populations.
Grants:	Ministerio de Economía y Competitividad MINECO/RYC-2016-21120
Note:	Altres ajuts: acords transformatius de la UAB
Rights:	Aquest 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.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Emerging infectious diseases ; Epidemics ; Population viability analysis ; Rupicapra pyrenaica pyrenaica ; Vortex
Published in:	European Journal of Wildlife Research, Vol. 69 Núm. 4 (august 2023) , p. 79, ISSN 1439-0574

DOI: 10.1007/s10344-023-01700-3

7 p, 796.0 KB

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Articles > Research articles
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