Potential parasite transmission in multi-host networks based on parasite sharing

PloS One
Shai PilosofCharles L Nunn

Abstract

Epidemiological networks are commonly used to explore dynamics of parasite transmission among individuals in a population of a given host species. However, many parasites infect multiple host species, and thus multi-host networks may offer a better framework for investigating parasite dynamics. We investigated the factors that influence parasite sharing--and thus potential transmission pathways--among rodent hosts in Southeast Asia. We focused on differences between networks of a single host species and networks that involve multiple host species. In host-parasite networks, modularity (the extent to which the network is divided into subgroups of rodents that interact with similar parasites) was higher in the multi-species than in the single-species networks. This suggests that phylogeny affects patterns of parasite sharing, which was confirmed in analyses showing that it predicted affiliation of individuals to modules. We then constructed "potential transmission networks" based on the host-parasite networks, in which edges depict the similarity between a pair of individuals in the parasites they share. The centrality of individuals in these networks differed between multi- and single-species networks, with species identity and ...Continue Reading

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Citations

Apr 27, 2016·Journal of Medical Entomology·Ana Sofia GuerraHillary S Young
Dec 22, 2017·Proceedings. Biological Sciences·Michael McLeishFernando García-Arenal
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Feb 10, 2021·Trends in Parasitology·Rogini RunghenCristina Llopis-Belenguer
Feb 2, 2021·The Journal of Animal Ecology·Joshua I Brian, David C Aldridge
Sep 21, 2021·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Ignacio Morales-CastillaT Jonathan Davies

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