Feeding ecology informs parasite epidemiology: prey selection modulates encounter rate with Echinococcus multilocularis in urban coyotes

PloS One
Stefano LiccioliAlessandro Massolo

Abstract

We investigated the role of urban coyote feeding ecology in the transmission of Echinococcus multilocularis, the causative agent of Alveolar Echinococcosis in humans. As coyotes can play a main role in the maintenance of this zoonotic parasite within North American urban settings, such study can ultimately aid disease risk management. Between June 2012 and June 2013, we collected 251 coyote feces and conducted trapping of small mammals (n = 971) in five parks in the city of Calgary, Alberta, Canada. We investigated E. multilocularis epidemiology by assessing seasonal variations of coyote diet and the selective consumption of different rodent intermediate host species. Furthermore, accounting for small mammal digestibility and coyote defecation rates we estimated the number of small mammal preys ingested by coyote and consequently, coyote encounter rates with the parasite. Dominant food items included small mammals, fruit and vegetation, although hare and deer were seasonally relevant. The lowest frequency of occurrence per scat of small mammals was recorded in winter (39.4%), when consumption of deer was highest (36.4%). However, highest encounter rates (number of infected hosts predated/season) with E. multilocularis (95% CI: ...Continue Reading

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Citations

Feb 21, 2016·Infectious Diseases of Poverty·Angela M Cadavid RestrepoArchie C A Clements
Aug 11, 2018·Journal of Wildlife Diseases·Claudia KleinAlessandro Massolo
Jun 18, 2017·BMC Ecology·Gjermund GomoTomas Willebrand
Apr 13, 2019·International Journal for Parasitology. Parasites and Wildlife·Torill MørkSiw T Killengreen
Jul 25, 2019·International Journal for Parasitology. Parasites and Wildlife·Peter DeplazesFelix Grimm
Feb 2, 2021·Parasitology Research·Michael J PipasBerit Bangoura

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Software Mentioned

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