Annual and Social Variation in Foraging Effort of the Obligately Eusocial Sweat Bee, Halictus ligatus (Hymenoptera: Halictidae)

@inproceedings{Richards2004AnnualAS,
  title={Annual and Social Variation in Foraging Effort of the Obligately Eusocial Sweat Bee, Halictus ligatus (Hymenoptera: Halictidae)},
  author={M. H. Richards},
  year={2004}
}
Abstract Previous studies of the obligately eusocial sweat bee Halictus ligatus Say, at a nesting aggregation in Victoria, southern Ontario, Canada, showed how changes in local environmental conditions led to marked variation in demography, body size, and social patterns. Under the harsher weather conditions of 1990, mortality was higher, colony sizes were lower, brood body sizes were smaller, and surviving colonies were more strongly eusocial than under the milder conditions of 1991. These… Expand
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