Monday, December 11, 2006
D0099

The foraging behavior of the honeybee: Transference of information among ecologically different patches

Marisol Amaya Marquez, marisol-amaya-marque@utulsa.edu and Harrington Wells, harrington-wells@utulsa.edu. University of Tulsa, Faculty of Biological Sciences, 600 South College Avenue, Tulsa, OK

Information is relevant to pollinators in floral decision making. Thus, cognitive and behavioral plasticity to choose the best flower types is expected to have evolved in generalist pollinators facing a floral landscape in permanent change. However costs of cognition balance the benefit of learning; factors such as rate of environmental change, and pressures for fast detection and exploitation of food items may lead to the evolution of cognitive systems in which precision is a trade-off for fast detection. An experiment, using artificial flower patches, was conducted to gain some insight into how the honey bee Apis mellifera responds to daily changes in the floral landscape. Results indicate that honey bees learn what color morph offers the greater payoff in the morning patch, becoming constant to that flower color. The bees transferred information between ecologically different patches, both in the scent experiment, and in the shape and scent experiment. The foraging response was attributable to the memory load for the information learned in the morning. Differences between exposed and controls were significant in the scent experiment, as well as in the shape-scent experiment. Honey bees acquire information in one context, and they use a piece of the information learned to exploit flowers in an ecologically different patch. The transference of the foraging response was very sharp and inflexible, indicating that factors related with acquisition and storage of information may interfere with the ability of pollinator bees to update information and optimize exploitation of inter-specific flower patches.


Species 1: Hymenoptera Apidae Apis mellifera (honey bee)