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Mechanisms of spectral orientation in a diurnal dung beetle

Ball rolling dung beetles use a wide range of cues to steer themselves along a fixed bearing, including the spectral gradient of scattered skylight that spans the sky. Here, we define the spectral sensitivity of the diurnal dung beetle Kheper lamarcki and use the information to explore the orientati...

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Detalles Bibliográficos
Autores principales: Yilmaz, Ayse, el Jundi, Basil, Belušič, Gregor, Byrne, Marcus, Baird, Emily, Dacke, Marie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9441229/
https://www.ncbi.nlm.nih.gov/pubmed/36058237
http://dx.doi.org/10.1098/rstb.2021.0287
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author Yilmaz, Ayse
el Jundi, Basil
Belušič, Gregor
Byrne, Marcus
Baird, Emily
Dacke, Marie
author_facet Yilmaz, Ayse
el Jundi, Basil
Belušič, Gregor
Byrne, Marcus
Baird, Emily
Dacke, Marie
author_sort Yilmaz, Ayse
collection PubMed
description Ball rolling dung beetles use a wide range of cues to steer themselves along a fixed bearing, including the spectral gradient of scattered skylight that spans the sky. Here, we define the spectral sensitivity of the diurnal dung beetle Kheper lamarcki and use the information to explore the orientation performance under a range of spectral light combinations. We find that, when presented with spectrally diverse stimuli, the beetles primarily orient to the apparent brightness differences as perceived by their green photoreceptors. Under certain wavelength combinations, they also rely on spectral information to guide their movements, but the brightness and spectral directional information is never fully disentangled. Overall, our results suggest the use of a dichromatic, primitive colour vision system for the extraction of directional information from the celestial spectral gradient to support straight-line orientation. This article is part of the theme issue ‘Understanding colour vision: molecular, physiological, neuronal and behavioural studies in arthropods’.
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spelling pubmed-94412292022-09-16 Mechanisms of spectral orientation in a diurnal dung beetle Yilmaz, Ayse el Jundi, Basil Belušič, Gregor Byrne, Marcus Baird, Emily Dacke, Marie Philos Trans R Soc Lond B Biol Sci Articles Ball rolling dung beetles use a wide range of cues to steer themselves along a fixed bearing, including the spectral gradient of scattered skylight that spans the sky. Here, we define the spectral sensitivity of the diurnal dung beetle Kheper lamarcki and use the information to explore the orientation performance under a range of spectral light combinations. We find that, when presented with spectrally diverse stimuli, the beetles primarily orient to the apparent brightness differences as perceived by their green photoreceptors. Under certain wavelength combinations, they also rely on spectral information to guide their movements, but the brightness and spectral directional information is never fully disentangled. Overall, our results suggest the use of a dichromatic, primitive colour vision system for the extraction of directional information from the celestial spectral gradient to support straight-line orientation. This article is part of the theme issue ‘Understanding colour vision: molecular, physiological, neuronal and behavioural studies in arthropods’. The Royal Society 2022-10-24 2022-09-05 /pmc/articles/PMC9441229/ /pubmed/36058237 http://dx.doi.org/10.1098/rstb.2021.0287 Text en © 2022 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited.
spellingShingle Articles
Yilmaz, Ayse
el Jundi, Basil
Belušič, Gregor
Byrne, Marcus
Baird, Emily
Dacke, Marie
Mechanisms of spectral orientation in a diurnal dung beetle
title Mechanisms of spectral orientation in a diurnal dung beetle
title_full Mechanisms of spectral orientation in a diurnal dung beetle
title_fullStr Mechanisms of spectral orientation in a diurnal dung beetle
title_full_unstemmed Mechanisms of spectral orientation in a diurnal dung beetle
title_short Mechanisms of spectral orientation in a diurnal dung beetle
title_sort mechanisms of spectral orientation in a diurnal dung beetle
topic Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9441229/
https://www.ncbi.nlm.nih.gov/pubmed/36058237
http://dx.doi.org/10.1098/rstb.2021.0287
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