Adaptations for nocturnal vision in insect apposition eyes

Birgit Greiner

Research output: Contribution to journalReview articlepeer-review

37 Citations (SciVal)

Abstract

Due to our own preference for bright light, we tend to forget that many insects are active in very dim light. Nocturnal insects possess in general superposition compound eyes. This eye design is truly optimized for dim light as photons can be gathered through large apertures comprised of hundreds of lenses. In apposition eyes, on the other hand, the aperture consists of a single lens resulting in a poor photon catch and unreliable vision in dim light. Apposition eyes are therefore typically found in day-active insects. Some nocturnal insects have nevertheless managed the transition to a strictly nocturnal lifestyle while retaining their highly unsuitable apposition eye design. Large lenses and wide photoreceptors enhance the sensitivity of nocturnal apposition eyes. However, as the gain of these optical adaptations is limited and not sufficient for vision in dim light, additional neural adaptations in the form of spatial and temporal summation are necessary.
Original languageEnglish
Pages (from-to)1
JournalInternational Review of Cytology
Volume250
DOIs
Publication statusPublished - 2006

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Zoology (Closed 2011) (011012000)

Subject classification (UKÄ)

  • Zoology

Keywords

  • theoretical modeling
  • summation
  • temporal and spatial
  • optical and neural adaptations
  • navigation
  • landmark
  • apposition eye
  • nocturnal insects
  • vision
  • dim light

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