Meny

Javascript is not activated in your browser. This website needs javascript activated to work properly.
Du är här

Spectral sensitivity of a colour changing spider

Författare:
  • Jeremy Defrize
  • Claudio R. Lazzari
  • Eric Warrant
  • Jerome Casas
Publiceringsår: 2011
Språk: Engelska
Sidor: 508-513
Publikation/Tidskrift/Serie: Journal of Insect Physiology
Volym: 57
Nummer: 4
Dokumenttyp: Artikel
Förlag: Elsevier Science Ltd

Sammanfattning

Vision plays a paramount role in some spider families such as the Salticidae, Lycosidae and Thomisidae, as it is involved in prey hunting, orientation or choice of substrate. In the thomisid Misumena vatia, for which the substrate colour affects the body colour, vision seems to mediate morphological colour changes. However, nothing is known about which component of visual signals from the substrate might be perceived, nor whether M. vatia possesses the physiological basis for colour vision. The aim of this study is thus to investigate the vision of this spider species by measuring the spectral sensitivities of the different pairs of eyes using electrophysiological methods. Extra- and intracellular electrophysiological recordings combined with selective adaptation revealed the presence of two classes of photoreceptor cells, one sensitive in the UV region of the spectrum (around 340 nm) and one sensitive in the green (around 520 nm) regions in the four pairs of eyes. We conclude that M. vatia possesses the physiological potential to perceive both chromatic and achromatic components of the environment. (C) 2011 Elsevier Ltd. All rights reserved.

Disputation

Nyckelord

  • Biology and Life Sciences
  • Vision
  • Spectral sensitivities
  • Crab spider
  • Misumena vatia
  • Mimetism
  • Crypsis

Övriga

Published
Yes
  • ISSN: 0022-1910

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen