Journal of Insect Behavior

, Volume 9, Issue 4, pp 643–656

Parasitism rates in relation to nest site in bees and wasps (Hymenoptera: Apoidea)

  • William T. Wcislo

DOI: 10.1007/BF02213885

Cite this article as:
Wcislo, W.T. J Insect Behav (1996) 9: 643. doi:10.1007/BF02213885


To account for differences in occurrence of social behavior in different lineages of bees, Michener (1985) hypothesized that ground nests are more easily located by parasites than are twig nests. In the former case parasites search in two dimensions, while in the latter they search in three-dimensional space. One prediction derived from this hypothesis is that ground nests will have higher rates of parasitism than twig nests. A survey of published reports on rates of cell parasitism for 92 species of nesting bees and wasps (Apoidea) shows no significant differences in mean parasitism rates between these two classes of nests. The analyses were repeated at the generic level (N=44), yielding the same pattern. These data may be biased due to phylogenetic effects. Paired comparisons (n=11 pairs) of related taxa that differ in nest site show that ground-nesting taxa more often have higher rates of parasitism than twig-nesters. The use of artificial “trap-nests” to study twig-nesters significantly enhances the success rate of parasites. This bias, as well as several other limitations, suggests that experimental studies of the host-searching capabilities of parasites and predators may be more efficacious than such comparative tests.

Key Words

Apoideabeesphecid waspparasitismsearch behaviorhabitat

Copyright information

© Plenum Publishing Corporation 1996

Authors and Affiliations

  • William T. Wcislo
    • 1
    • 2
  1. 1.Smithsonian Tropical Research InstituteBalboaRepublic of Panamá
  2. 2.Unit 0948, APO AASmithsonian Tropical Research InstituteUSA