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Intraspecific variability in host manipulation by parasites.

Frédéric Thomas1, Jacques Brodeur, Fanny Maure

  • 1IRD, MIVEGEC (UMR CNRS/IRD/UM), Team Strategy and Adaptation of Transmission, 911 Avenue Agropolis, 34090 Montpellier, France. frederic.thomas2@ird.fr

Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases
|January 8, 2011
PubMed
Summary

Parasitic manipulation of host traits like behavior varies significantly. This review explores environmental and genetic factors causing this variation and its evolutionary importance.

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Area of Science:

  • Parasitology
  • Behavioral Ecology
  • Evolutionary Biology

Background:

  • Manipulative parasites alter host phenotypes, including behavior.
  • Research has focused on parasite diversity and trait adaptation.
  • Variability in host manipulation intensity is increasingly recognized within parasite systems.

Purpose of the Study:

  • To review causes of variability in host behavior manipulation.
  • To discuss the evolutionary significance of this variability.
  • To propose future research directions.

Main Methods:

  • Literature review of studies on host-parasite interactions.
  • Synthesis of evidence on genetic and environmental factors.
  • Analysis of variability at individual and population levels.

Main Results:

  • Variability in host manipulation occurs within and between individuals and populations.
  • Both non-genetic (environmental) and genetic factors contribute to this variability.
  • Understanding variability is crucial for evolutionary insights.

Conclusions:

  • Host behavior manipulation by parasites is not uniform.
  • Environmental and genetic factors drive this variation, impacting host evolution.
  • Further research is needed to fully understand these complex interactions.