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Spectral information as an orientation cue in dung beetles

In English

Författare

Summary, in English

During the day, a non-uniform distribution of long and short wavelength light generates a colour gradient across the sky. This gradient could be used as a compass cue, particularly by animals such as dung beetles that rely primarily on celestial cues for orientation. Here, we tested if dung beetles can use spectral cues for orientation by presenting them with monochromatic (green and UV) light spots in an indoor arena. Beetles kept their original bearing when presented with a single light cue, green or UV, or when presented with both light cues set 180° apart. When either the UV or the green light was turned off after the beetles had set their bearing in the presence of both cues, they were still able to maintain their original bearing to the remaining light. However, if the beetles were presented with two identical green light spots set 180° apart, their ability to maintain their original bearing was impaired. In summary, our data show that ball-rolling beetles could potentially use the celestial chromatic gradient as a reference for orientation.

Publiceringsår

2015

Språk

Engelska

Publikation/Tidskrift/Serie

Biology letters

Volym

11

Issue

11

Dokumenttyp

Artikel i tidskrift

Förlag

Royal Society Publishing

Ämne

  • Biological Sciences

Status

Published

Forskningsgrupp

  • Lund Vision Group

ISBN/ISSN/Övrigt

  • ISSN: 1744-9561