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Bodyguard manipulation in a multipredator context: different processes, same effect.

Fanny Maure1, Jacques Brodeur, Anaïs Droit

  • 1MIVEGEC, UMR (IRD/CNRS/UM) 5290, Centre IRD, 911 Av. Agropolis, B.P. 64501, 34394 Montpellier Cedex 5, France; Institut de recherche en biologie végétale, Université de Montréal, 4101 rue Sherbrooke est, Montréal, Québec H1X 2B2, Canada.

Behavioural Processes
|June 25, 2013
PubMed
Summary
This summary is machine-generated.

The parasitoid Dinocampus coccinellae uses lady beetle hosts as living bodyguards for protection. This bodyguard strategy significantly enhances parasitoid survival against various predators, supporting the bodyguard hypothesis.

Keywords:
CricketDinocampus coccinellaeHost behaviour manipulationJumping spiderParasitic wasp

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Area of Science:

  • Behavioral Ecology
  • Insect Parasitology
  • Evolutionary Biology

Background:

  • Parasites employ diverse strategies to exploit hosts, including behavioral manipulation.
  • Bodyguard manipulation involves hosts protecting parasites or their offspring.
  • Dinocampus coccinellae parasitizes lady beetles, using the host as a bodyguard.

Purpose of the Study:

  • To investigate the effectiveness of the bodyguard strategy in a multipredator context.
  • To determine if the living lady beetle bodyguard protects parasitoid cocoons against diverse predators.
  • To explore predator foraging behaviors and their impact on bodyguard efficacy.

Main Methods:

  • Utilized jumping spiders and crickets as predators with different foraging behaviors.
  • Observed interactions between parasitoid cocoons, lady beetle bodyguards, and predators.
  • Compared cocoon survival rates with and without a living bodyguard.

Main Results:

  • The lady beetle bodyguard significantly enhanced parasitoid cocoon survival against both jumping spiders and crickets.
  • Protection varied with predator type; a living bodyguard was crucial against jumping spiders.
  • Even when increasing initial detection, the bodyguard ultimately improved survival rates.

Conclusions:

  • The bodyguard strategy of Dinocampus coccinellae is effective across a multipredator environment.
  • Living lady beetles provide crucial protection, even against predators with different hunting strategies.
  • Results strongly support the bodyguard hypothesis in a complex ecological context.