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Manipulation of Color Patterns in Jumping Spiders for Use in Behavioral Experiments
Published on: May 21, 2019
Spectral sensitivity of a colour changing spider
Jérémy Defrize1, Claudio R Lazzari, Eric J Warrant
1Institut de Recherche sur la Biologie de l'Insecte, Université François Rabelais de Tours, CNRS UMR 6035, 37200 Tours, France. jeremy.defrize@univ-tours.fr
Journal of Insect Physiology
|February 9, 2011
Summary
The crab spider Misumena vatia has two types of photoreceptor cells, enabling it to see UV and green light. This visual capability suggests M. vatia can perceive both color and brightness in its environment.
Area of Science:
- Zoology
- Animal Vision
- Arachnology
Background:
- Vision is crucial for Salticidae, Lycosidae, and Thomisidae spiders in hunting, navigation, and substrate selection.
- In Misumena vatia, substrate color influences body color, suggesting vision mediates these changes, but the specifics of visual perception are unknown.
Purpose of the Study:
- To investigate the visual system of Misumena vatia.
- To determine the spectral sensitivities of M. vatia's photoreceptor cells.
- To assess the physiological basis for color vision in M. vatia.
Main Methods:
- Electrophysiological recordings (extracellular and intracellular) were used to measure spectral sensitivities.
- Selective adaptation techniques were employed to identify photoreceptor classes.
- Recordings were performed on all four pairs of eyes in M. vatia.
Main Results:
- Two classes of photoreceptor cells were identified in M. vatia's eyes.
- One photoreceptor class showed sensitivity in the ultraviolet (UV) spectrum around 340 nm.
- The second photoreceptor class exhibited sensitivity in the green spectrum around 520 nm.
Conclusions:
- Misumena vatia possesses the physiological foundation for color vision.
- The spider's visual system can likely perceive both chromatic (color) and achromatic (brightness) aspects of its surroundings.
- These findings provide insight into the sensory ecology of M. vatia and its interaction with colored substrates.
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