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Spectral sensitivity of the landing blow fly calliphora erythrocephala






Journal of Comparative Physiology A Sensory Neural & Behavioral Physiology 150(3): 319-328

Spectral sensitivity of the landing blow fly calliphora erythrocephala

The role of color discrimination in eliciting the landing response of the fly was investigated with rotating linear spiral patterns of different spectral composition. In an alternative procedure the spectral sensitivity was obtained from threshold intensities of a high contrast spiral pattern superimposed on a constant background. The spectra obtained by the 2 methods are very similar broad-band curves with peaks in the UV and in the blue-green. At the intermediate and low intensity range the contrast thresholds are slightly dependent on the intensity. With moving stimuli color discrimination is absent in the landing response pathway. Contrast, determined by intensity and spectral wavelength are important.


Accession: 006459899



Related references

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