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Wolves contribute to disease control in a multi-host system

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We combine model results with field data for a system of wolves (Canis lupus) that prey on wild boar (Sus scrofa), a wildlife reservoir of tuberculosis, to examine how predation may contribute to disease control in multi-host systems. Results show that predation can lead to a marked reduction in the prevalence of infection without leading to a reduction in host population density since mortality due to predation can be compensated by a reduction in disease induced mortality. A key finding therefore is that a population that harbours a virulent infection can be regulated at a similar density by disease at high prevalence or by predation at low prevalence. Predators may therefore provide a key ecosystem service which should be recognized when considering human-carnivore conflicts and the conservation and re-establishment of carnivore populations.

Document: Multi-Host-System-1.pdf  PDF icon

Author(s): E.Tanner, A.White, P.Acevedo, A. Balseiro, J. Marcos & C.Gortázar

READ MORE: https://www.nature.com/articles/s41598-019-44148-9

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