Cooperation and conflict in host–manipulating parasites

@article{Brown1999CooperationAC,
  title={Cooperation and conflict in host–manipulating parasites},
  author={Sam P. Brown},
  journal={Proceedings of the Royal Society of London. Series B: Biological Sciences},
  year={1999},
  volume={266},
  pages={1899 - 1904}
}
  • S. Brown
  • Published 22 September 1999
  • Biology
  • Proceedings of the Royal Society of London. Series B: Biological Sciences
The existence of adaptive host manipulation by parasites has received increasing empirical support in recent years. Here I develop an optimality model of the extent of host manipulation, incorporating within-host group size, relatedness and a range of realistic cost–benefit functions. The model highlights the cooperative nature of host manipulation, and the potential for cheating this entails. When relatedness in parasite groups is minimal, manipulation is suppressed, but not eradicated… 
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137 Citations
Highly Influential Citations
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Background Citations
84
Methods Citations
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Results Citations
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137 Citations

Cooperation and conflict in host manipulation: interactions among macro-parasites and micro-organisms
TLDR
The actual importance of selective forces shaping the evolution of interactions between manipulative parasites in relation to parasite prevalence in natural populations, efficiency in manipulation, and type of transmission is discussed, and the potential for future research is emphasized.
Parasite Manipulation of Host Behavior: An Update and Frequently Asked Questions
The evolution of host manipulation by parasites: a game theory analysis
TLDR
It is shown that intrahost competition will decrease the investment that a parasite should make in manipulation but that manipulation can, under some circumstances, be a profitable strategy even in the presence of non-manipulating competitors.
Cooperation or Conflict: Host Manipulation in Multiple Infections
TLDR
Experimental studies of both cooperation and conflict among parasites, especially studies investigating the interaction between different parasite species using the same host are urgently needed.
Manipulation of host behaviour by parasites: a weakening paradigm?
  • R. Poulin
  • Biology
    Proceedings of the Royal Society of London. Series B: Biological Sciences
  • 2000
TLDR
The relationship between the magnitude of published quantitative estimates of parasite–induced changes in host behaviour and year of publication from the time the adaptive host manipulation hypothesis was first proposed is examined.
Parasitic Manipulations of the Host Phenotype: Effects in Internal and External Environments
TLDR
The review gives insight into the most common types of manipulative strategies and discusses (i) the evolutionary advantages of these strategies, (ii) why some strategies are more common than others, and (iii) how manipulative strategies change in the course of parasite growth and development.
Positive density-dependent growth supports costs sharing hypothesis and population density sensing in a manipulative parasite
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The hypothesis that macroparasites can adjust their growth rate and manipulation investment according to cost sharing level and infrapopulation size supports the hypothesis that parasitic manipulations should be costly.
Why multiple infections favour virulent parasites
TLDR
Focusing on chronic dimorphic infections caused by horizontally-transmitted microparasites, it is shown that within-host growth traits are under strong selective pressure and when small mutations affect them, most of the surviving mutants are more virulent than their resident.
A lack of crowding? Body size does not decrease with density for two behavior-manipulating parasites.
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The findings suggest that some behavior-manipulating parasites suffer no reduction in size, and may even benefit when "crowded" by conspecifics.
The Role of Parasitism in Adaptive Radiations—When Might Parasites Promote and When Might They Constrain Ecological Speciation?
TLDR
It is concluded that future studies should consider host populations at variable stages of the speciation process, and explore recurrent patterns of parasitism and resistance that could pinpoint the role of parasites in imposing the divergent selection that initiates ecological speciation.
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