Erling Meisingset
Forsker
(+47) 918 08 860
erling.meisingset@nibio.no
Sted
Tingvoll
Besøksadresse
Gunnars veg 6, 6630 Tingvoll
Forfattere
Atle Mysterud William Ryan Easterday Vetle Malmer Stigum Anders Aas Erling Meisingset Hildegunn ViljugreinSammendrag
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Forfattere
Erling MeisingsetSammendrag
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Forfattere
Even Unsgård Erling Meisingset Inger Maren Rivrud Gunn Randi Fossland Pål Thorvaldsen Vebjørn Veiberg Atle MysterudSammendrag
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Sammendrag
Abstract Our understanding of how migratory wildlife populations affect incidence of infectious diseases spilling over into humans is limited. Ticks are expanding their distribution towards northern latitudes, causing emergence of tick‐borne diseases. Deer serve as reproduction hosts for adult ticks, supporting the tick populations. However, in northern areas, deer populations are partially migratory, and migrants occupy high elevation summer ranges that are unsuitable for ticks. Migration can thus theoretically lead to escape from exposure to ticks and to deer feeding fewer ticks, which lower disease hazard to humans. Combining data on Ixodes ricinus tick abundance with GPS‐tracking data of red deer ( Cervus elaphus ), we quantified the distributional overlap of ticks and red deer along elevational gradients in Norway. Furthermore, we correlated both deer density and the proportion of migratory deer with the incidence of Lyme disease in humans. We found that migratory deer summer ranges had colder climate and overlapped less with tick distribution than those of resident deer. Deer density consistently increased Lyme disease incidence in humans. However, we found only weak evidence that deer migration negatively affected Lyme disease incidence. Our study provides a rare quantification of how host availability, in terms of both host density and migratory movement, affects risk of a zoonotic disease.
Divisjon for skog og utmark
Red deer and damages: Red deer space use, population ecology and level of grazing damages to farmland and forests
I Norge har det vært en stor økning i hjortebestanden (Cervus elaphus L.), spesielt i kjerneområdene på Vestlandet. Som et resultat av dette har skader på skog og innmark i landbruket økt. Det er imidlertid begrenset kunnskap om beiteskadene i tid og rom, og hvilke faktorer som påvirker skadesituasjonen.
Divisjon for skog og utmark
Hjortmerk
Informasjon om merkeprosjekt på hjort, både pågående og avslutta prosjekt