Polarization sensitivity as a visual contrast enhancer in the Emperor dragonfly larva , Anax imperator ( Leach , 1815 )
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چکیده
Polarization sensitivity (PS) is a common feature of invertebrate visual systems. In insects, PS is well known for its use in several different visually guided behaviours, particularly navigation and habitat search. Adult dragonflies use the polarization of light to find water but a role for PS in aquatic dragonfly larvae, a stage that inhabits a very different photic environment to the adults, has not been investigated. The optomotor response of the larvae of the Emperor dragonfly, Anax imperator, was used to determine whether these larvae use PS to enhance visual contrast underwater. Two different light scattering conditions were used to surround the larval animals: a naturalistic horizontally polarized light field and nonTh e Jo ur na l o f E xp er im en ta l B io lo gy – A C C EP TE D A U TH O R M A N U SC R IP T http://jeb.biologists.org/lookup/doi/10.1242/jeb.122507 Access the most recent version at J Exp Biol Advance Online Articles. First posted online on 18 September 2015 as doi:10.1242/jeb.122507
منابع مشابه
Polarization sensitivity as a visual contrast enhancer in the Emperor dragonfly larva, Anax imperator.
Polarization sensitivity (PS) is a common feature of invertebrate visual systems. In insects, PS is well known for its use in several different visually guided behaviours, particularly navigation and habitat search. Adult dragonflies use the polarization of light to find water but a role for PS in aquatic dragonfly larvae, a stage that inhabits a very different photic environment to the adults,...
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تاریخ انتشار 2015