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dc.contributor.authorUtaaker, Kjersti Selstad
dc.contributor.authorYtrehus, Bjørnar
dc.contributor.authorDavey, Marie Louise
dc.contributor.authorFossøy, Frode
dc.contributor.authorDavidson, Rebecca K.
dc.contributor.authorMiller, Andrea
dc.contributor.authorRobertsen, Per-Anders
dc.contributor.authorStrand, Olav
dc.contributor.authorRauset, Geir Rune
dc.description.abstractAbstract: Attraction sites are important for environmental pathogen transmission and spillover. Yet, their role in wildlife disease dynamics is often poorly substantiated. Herein, we study the role of salt licks as potential attraction sites for the spillover of gastrointestinal parasites from domestic sheep to wild reindeer. Eggs from the introduced sheep nematode Nematodirus battus were found in faecal samples of both species, suggestive of spillover. DNA metabarcoding of soil, collected at salt licks, revealed that N. battus, in addition to Teladorsagia circumcincta, were the most frequently occurring parasitic nematodes, with a significantly higher prevalence of nematodal DNA in salt lick soil compared to soil from control sites nearby. The finding of similar DNA haplotypes of N. battus in sheep, reindeer, and salt lick soil supports the hypothesis of spillover to reindeer via salt licks. More detailed investigation of the genetic diversity of N. battus across these hosts is needed to draw firm conclusions. Infection with these sheep nematodes could potentially explain a recently observed decline in the calf recruitment rate of the Knutshø reindeer herd. This study also supports the hypothesized role of artificial salt licks as hot spots for the transmission of environmentally persistent pathogens and illustrates the importance of knowledge about such attraction points in the study of disease in free-roaming animals.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.subjectattraction sitesen_US
dc.subjectDisease transmissionen_US
dc.subjectdomestic sheep (Ovis aries)en_US
dc.subjectReindeer (Rangifer tarandus)en_US
dc.subjectGastrointestinal nematodesen_US
dc.subjectChronic wasting diseaseen_US
dc.titleParasite Spillover from Domestic Sheep to Wild Reindeer—The Role of Salt Licksen_US
dc.title.alternativeParasite Spillover from Domestic Sheep to Wild Reindeer—The Role of Salt Licksen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.relation.projectMiljødirektoratet: 17040018en_US

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Navngivelse 4.0 Internasjonal
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