Scotopic vision in colour-blinds

  title={Scotopic vision in colour-blinds},
  author={Sarah Verhulst and Frans W. Maes},
  journal={Vision Research},
Alleles causing colour-blindness are present in humans at non-negligible levels, and it is not yet understood how colour-blindness is maintained, since colour-vision probably provides a selective advantage, e.g. when foraging. We show that after dark-adaptation colour-blinds had lower light perception thresholds than colour-normals (0.44 log-units), which may give a selective advantage under scotopic conditions, which may offset the disadvantage that colour-blinds suffer during foraging. 

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Comparison of rod/cone ration in three species of shorebirds having different noctunal foraging strategies

  • LM Rojas de Azuaje, S Tai, R. McNeil
  • Auk 1993;110:141–5
  • 1993
1 Excerpt

The distribution and nature of colour vision among the mammals

  • GH Jacobs
  • Biol Rev 1993;68:413–71
  • 1993
1 Excerpt

The Ecology of Vision

  • JN Lythgoe
  • 1979
1 Excerpt

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