Behavioral Ecology and Sociobiology

, Volume 57, Issue 2, pp 139–148

On the social structure of offspring rearing in the burrower bug, Sehirus cinctus (Hemiptera: Cydnidae)

  • Aneil F. Agrawal
  • Jeremy M. Brown
  • Edmund D. BrodieIII
Original Article

DOI: 10.1007/s00265-004-0841-2

Cite this article as:
Agrawal, A.F., Brown, J.M. & Brodie, E.D. Behav Ecol Sociobiol (2004) 57: 139. doi:10.1007/s00265-004-0841-2

Abstract

Maternal-offspring interactions are important in a variety of animals. Understanding the evolution of these interactions requires that we also study the broader social context in which they occur. To date, behavioral studies on burrower bugs, Sehirus cinctus, have focused exclusively on interactions between mothers and offspring. Here we ask whether these interactions occur in a social context that extends beyond the family unit of a mother and her own genetic offspring. Such social structure can arise from behaviors that occur before eggs are laid, or from actions of individuals that occur post-hatching. We present field data showing that lay sites of mothers are spatially aggregated on a scale that would lead to behavioral interactions among families. Microsatellite markers suggest neighboring mothers are unrelated. Laboratory experiments do not support the hypothesis that spatial aggregation results from a direct attraction of females to one another. Other laboratory studies reported here indicate that, after hatching, unrelated clutches sometimes join together to form multifamily groups. Experiments reveal that mothers are not necessary for these joining events to occur. In sum, these data suggest that both mothers and offspring play active, but different, roles in generating the social environment in which offspring rearing occurs.

Keywords

Communal breeding Social structure Burrower bugs Sehirus cinctus Maternal care 

Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  • Aneil F. Agrawal
    • 1
    • 2
  • Jeremy M. Brown
    • 1
  • Edmund D. BrodieIII
    • 1
  1. 1.Department of Biology and Center for the Integrative Study of Animal BehaviorIndiana UniversityBloomingtonUSA
  2. 2.Department of ZoologyUniversity of TorontoTorontoCanada

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