Does an increase in reward affect the precision of the encoding of directional information in the honeybee waggle dance?

DE MARCO, RODRIGO; GIL, MARIANA; FARINA, WALTER M

JOURNAL OF COMPARATIVE PHYSIOLOGY A-SENSORY NEURAL AND BEHAVIORAL PHYSIOLOGY

Springer

Lugar: Heidelberg; Año: 2005 p. 413 - 419

0340-7594

Apis mellifera foragers perform waggle dances to communicate the presence of highly desirable nectar  sources to their forager-mates. Each waggle dance consists of several waggle-runs (straight movements of the dancer closely aligned on the comb surface) that carry spatial information that the dance followers can use to locate the food source being advertised. To address how this complex motor display responds to unpredictable .uctuations in its main triggering stimulus, i.e., sucrose stimulation, we analyzed the e.ects of an increase in reward on the direction of consecutive waggle-runs as well as other components of the waggle dance. Results show that a sudden increase in reward may increase the directional scatter among consecutive waggle-runs, especially those performed at the beginning of the dance. However, a imultaneous and rapid increase in the duration of the signal—together with a more regular alignment of the later waggle-runs within the signal— seems to compensatethe initial increase in directional scatter so that the transfer of directional information remains e.ective. These results point out that the regulation of dance maneuvers depends on the dancer’s motivation to forage.