Animal colour vision — behavioural tests and physiological concepts

Kelber, Almut; Vorobyev, Misha; Osorio, Daniel

doi:10.1017/s1464793102005985

Cited by 772 publications

(902 citation statements)

References 199 publications

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“…represented by a two-dimensional chromaticity diagram corresponding to the photoreceptor noise-limited colour opponent model. The colours from the replica models were plotted according to eqn (B5) in Kelber et al (2003). Chromaticity values that plot at a distance of less than one unit are unlikely to be discriminable along that axis.…”

Section: Discussionmentioning

confidence: 99%

Multiple selective pressures apply to a coral reef fish mimic: a case of Batesian–aggressive mimicry

Cheney

2010

Proc. R. Soc. B.

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Mimics closely resemble unrelated species to avoid predation, capture prey or gain access to hosts or reproductive opportunities. However, the classification of mimicry systems into three established evolutionary mechanisms (protection, reproduction and foraging) can be contentious because multiple benefits may be gained by mimics, causing the evolution of such systems to be driven by more than one selective agent. However, data on such systems are generally speculative or anecdotal. This study provides empirical evidence that dual benefits apply to a coral reef fish mimic in terms of increased access to food (aggressive mimicry) and reduced predation risk (Batesian mimicry). Bicolour fangblennies Plagiotremus laudandus gained access to more reef fish victims, which they attack to feed on fins and scales, when they spent more time associated with their model Meiacanthus atrodorsalis. Furthermore, exact replicas of P. laudandus incurred fewer approaches from potential predators compared with control replicas that varied in resemblance to P. laudandus. Predators with trichromatic visual systems (three distinct spectral sensitivities) could potentially distinguish between replicas based on colour based on theoretical vision models. Therefore, this mimicry system could be best described as Batesian -aggressive mimicry in which mimicry evolution is driven by multiple simultaneous selective pressures.

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Section: Discussionmentioning

confidence: 99%

Multiple selective pressures apply to a coral reef fish mimic: a case of Batesian–aggressive mimicry

Cheney

2010

Proc. R. Soc. B.

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“…The model yields predictions of chromatic contrast ("colour") while achromatic contrast ("brightness") is ignored. Here, we provide a short outline of the model while comprehensive descriptions can be found in Vorobyev and Osorio (1998) and Kelber et al (2003).…”

Section: Modelling Chromatic Contrastmentioning

confidence: 99%

“…We assume that intensity is coded log-linearly by photoreceptors (e.g. Kelber et al, 2003) so that the contrast for each receptor channel is:…”

Section: Modelling Chromatic Contrastmentioning

confidence: 99%

Visual cues of oviposition sites and spectral sensitivity of Cydia strobilella L.

Jakobsson

Henze

Svensson

et al. 2017

Journal of Insect Physiology

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Please cite this article as: Jakobsson, J., Henze, M.J., Svensson, G.P., Lind, O., Anderbrant, O., Visual cues of oviposition sites and spectral sensitivity of Cydia strobilella L, Journal of Insect Physiology (2017), doi: http:// dx.doi.org/10. 1016/j.jinsphys.2017.06.006 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractWe investigated whether the spruce seed moth (Cydia strobilella L., Tortricidae: Grapholitini), an important pest in seed orchards of Norway spruce (Picea abies (L.) Karst.), can make use of the spectral properties of its host when searching for flowers to oviposit on. Spectral measurements showed that the flowers, and the cones they develop into, differ from a background of P. abies needles by a higher reflectance of long wavelengths. These differences increase as the flowers develop into mature cones. Electroretinograms (ERGs) in combination with spectral adaptation suggest that C. strobilella has at least three spectral types of photoreceptor; an abundant green-sensitive receptor with maximal sensitivity at wavelength λ max = 526 nm, a blue-sensitive receptor with λ max = 436 nm, and an ultravioletsensitive receptor with λ max = 352 nm. Based on our spectral measurements and the receptor properties inferred from the ERGs, we calculated that open flowers, which are suitable oviposition sites, provide detectable achromatic, but almost no chromatic contrasts to the background of needles. In field trials using traps of different spectral properties with or without a female sex pheromone lure, only pheromone-baited traps caught moths. Catches in baited traps were not correlated with the visual contrast of the traps against the background. Thus, visual contrast is probably not the primary cue for finding open host flowers, but it could potentially complement olfaction as a secondary cue, since traps with certain spectral properties caught significantly more moths than others.

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“…lemurs) have two retinal cone types, while primates evolved an additional, third type of retinal cone. Birds, fish and many reptiles have yet a fourth type of retinal cone that can detect ultra-violet (UV) wavelengths (see Kelber et al 2003). So far, studies on fruit colouration have often categorised colours according to human vision (e.g.…”

Section: Introductionmentioning

confidence: 99%

Geographic patterns in fruit colour diversity: do leaves constrain the colour of fleshy fruits?

et al. 2008

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We tested for geographic patterns in fruit colour diversity. Fruit colours are thought to promote detection by seed dispersers. Because seed dispersers differ in their spectral sensitivities, we predicted that fruit colour diversity would be higher in regions with higher seed disperser diversity (i.e. the tropics). We collected reflectance data on 232 fruiting plant species and their natural backgrounds in seven localities in Europe, North and South America, and analysed fruit colour diversity according to the visual system of birds-the primary consumer types of these fruits. We found no evidence that fruit colours are either more conspicuous or more diverse in tropical areas characterised by higher seed disperser diversity. Instead, fruit colour diversity was lowest in central Brazil, suggesting that fruit colours may be more diverse in temperate regions. Although we found little evidence for geographic variation in fruit hues, the spectral properties of fruits were positively associated with the spectral properties of backgrounds. This result implies that fruit colours may be influenced by selection on the reflectance properties of leaves, thus constraining the evolution of fruit colour. Overall, the results suggest that fruit colours in the tropics are neither more diverse nor more conspicuous than temperate fruits, and that fruit colours may be influenced by correlated selection on leaf reflectance properties.

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Animal colour vision — behavioural tests and physiological concepts

Cited by 772 publications

References 199 publications

Multiple selective pressures apply to a coral reef fish mimic: a case of Batesian–aggressive mimicry

Multiple selective pressures apply to a coral reef fish mimic: a case of Batesian–aggressive mimicry

Visual cues of oviposition sites and spectral sensitivity of Cydia strobilella L.

Geographic patterns in fruit colour diversity: do leaves constrain the colour of fleshy fruits?

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