| Abstrakt: |
The spectral sensitivity of spontaneous phototactic behavior was tested in short wavelength deprived bees and in control bees kept outdoors. Tests were performed with a y-maze with one branch illuminated, the other dark. The relative sensitivities for the control group were: green to blue to UV = 1∶0.27∶2.14. Short wavelength deprived bees show a distinct decrease in their sensitivity to short wavelengths. The relation green to blue to UV here was 1∶0.22∶0.27. Forager bees from outdooors, short wavelength deprived for 10 days, showed a relation of green to blue to UV of 1∶0.26∶1.04. Electrophysiological investigation of the compound eye using electroretinogram recordings showed no difference between deprived and control animals. [ABSTRACT FROM AUTHOR] |
