Behavioral Ecology Advance Access published online on January 18, 2006
Behavioral Ecology, doi:10.1093/beheco/arj036
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1 Ecology and Evolutionary Biology, University of Arizona, 1041 E. Lowell Street, Tucson, AZ 85721, USA
* To whom correspondence should be addressed. Why do some social insects have sophisticated recruitment systems, while other species do not communicate about food source locations at all? To answer this question, it is necessary to identify the social or ecological factors that make recruitment adaptive and thus likely to evolve. We developed an individual-based model of honey bee foraging to quantify the benefits of recruitment under different spatial distributions of nondepleting resource patches and with different colony sizes. Benefits of recruitment were strongly dependent on resource patch quality, density, and variability. Communication was especially beneficial if patches were poor, few, and variable. A sensitivity analysis of the model showed that under conditions of high resource density recruitment could even become detrimental, especially if foraging duration was short, tendency to scout was high, or recruits needed a long time to find communicated locations. Colony size, a factor often suspected to influence recruitment evolution, had no significant effect. These results may explain the recent experimental findings that in honey bees, benefits of waggle dance recruitment seem to vary seasonally and with habitat. They may also explain why some, but not other, species of social bees have evolved a strategy to communicate food locations to nest mates.
Received March 3, 2005
Revised November 5, 2005
Accepted December 2, 2005
Article
Benefits of recruitment in honey bees: effects of ecology and colony size in an individual-based model
Anna Dornhaus 1 *,
Franziska Klügl 2,
Christoph Oechslein 2,
Frank Puppe 2,
and
Lars Chittka 3
2 Department of Artificial Intelligence and Applied Computing, University of Würzburg, 97074 Würzburg, Germany
3 School of Biological Sciences, Queen Mary College, London, E1 4NS, U.K
Anna Dornhaus, E-mail: dornhaus{at}email.arizona.edu
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