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Facultative and obligate parasite communities exhibit different network properties

Published online by Cambridge University Press:  07 August 2013

TIMOTHÉE POISOT ,
MICHAL STANKO ,
DANA MIKLISOVÁ  and
SERGE MORAND
TIMOTHÉE POISOT*
Affiliation:
Université du Québec à Rimouski, Rimouski, Canada Quebec Center for Biodiversity Science, McGill University, Montréal, Canada
MICHAL STANKO
Affiliation:
Institute of Parasitology, Slovak Academy of Sciences, Košice, Slovakia Institute of Zoology, Slovak Academy of Sciences, Bratislava, Slovakia
DANA MIKLISOVÁ
Affiliation:
Institute of Parasitology, Slovak Academy of Sciences, Košice, Slovakia
SERGE MORAND
Affiliation:
Institut des Sciences de l'Évolution, Université Montpellier 2, Montpellier, France
*
*Corresponding author: Université du Québec à Rimouski, Rimouski, Canada. E-mail: timothee_poisot@uqar.ca
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Summary

Network theory is gaining momentum as a descriptive tool in community ecology. Because organisms with the same lifestyle can still exhibit ecological differences, it is crucial to determine the scale at which networks should be described. Here we show that networks of hosts (mammals) and parasites (ectoparasitic gamasid mites) differ when either facultative or obligatory parasites only are considered. More importantly, the structure of these networks is opposed, with obligatory parasites networks being more modular, and facultative parasites networks being more nested. Our results have consequences for the way we define which species to include in ecological networks, which we discuss in the light of community ecology and epidemiology.

Type
Parasitology Express
Information
Parasitology , Volume 140 , Issue 11 , September 2013 , pp. 1340 - 1345
Copyright
Copyright © Cambridge University Press 2013 

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