Eusociality in Australian gall thrips

  title={Eusociality in Australian gall thrips},
  author={Bernard J. Crespi},
  • B. Crespi
  • Published 1 October 1992
  • Biology
  • Nature
STUDIES of the role of haplodiploidy in the evolution of eusociality have been limited to the Hymenoptera, the only insects known to exhibit both reproductive castes and the haplodiploid genetic system1. Because aculeate Hymenoptera share many other traits that may affect sociality, such as provisioning at nests, powerful flight, mandibulate mouthparts, and stings, it has been difficult to separate the effects of haplodiploidy from other characteristics of this taxonomic group2'3. Here I report… 

The Evolutionary Ecology of Eusociality in Australian Gall Thrips: a ‘Model Clades’ Approach

Analysis of the associations between genetic and ecological traits that resulted from the social-adaptive radiation of gall thrips with soldiers provides two main insights: first, fewer matings by foundresses, and less mating after dispersal, result in stronger local mate competition, higher relatedness (and a higher inbreeding coefficient) among soldier females, and a stronger female bias in dispersers.

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