An integrative framework for the appraisal of coloration in nature

Darrell J. Kemp, Marie E. Herberstein, Leo J. Fleishman, John A. Endler, Andrew T D Bennett, Adrian G. Dyer, Nathan S. Hart, Justin Marshall, Martin J. Whiting

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The world in color presents a dazzling dimension of phenotypic variation. Biological interest in this variation has burgeoned, due to both increased means for quantifying spectral information and heightened appreciation for how animals view the world differently than humans. Effective study of color traits is challenged by how to best quantify visual perception in nonhuman species. This requires consideration of at least visual physiology but ultimately also the neural processes underlying perception. Our knowledge of color perception is founded largely on the principles gained from human psychophysics that have proven generalizable based on comparative studies in select animal models. Appreciation of these principles, their empirical foundation, and the reasonable limits to their applicability is crucial to reaching informed conclusions in color research. In this article, we seek a common intellectual basis for the study of color in nature. We first discuss the key perceptual principles, namely, retinal photoreception, sensory channels, opponent processing, color constancy, and receptor noise. We then draw on this basis to inform an analytical framework driven by the research question in relation to identifiable viewers and visual tasks of interest. Consideration of the limits to perceptual inference guides two primary decisions: first, whether a sensory-based approach is necessary and justified and, second, whether the visual task refers to perceptual distance or discriminability. We outline informed approaches in each situation and discuss key challenges for future progress, focusing particularly on how animals perceive color. Given that animal behavior serves as both the basic unit of psychophysics and the ultimate driver of color ecology/evolution, behavioral data are critical to reconciling knowledge across the schools of color research.

LanguageEnglish
Pages705-724
Number of pages20
JournalAmerican Naturalist
Volume185
Issue number6
DOIs
Publication statusPublished - Jun 2015

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color
animal
photoreception
appraisal
analytical framework
constancy
phenotypic variation
animal behavior
physiology
comparative study
animals
animal models
ecology
receptors
psychophysics
world

Bibliographical note

Copyright 2015 by University of Chicago Press. Originally published in American naturalist, 185(6), pp. 705-724, http://dx.doi.org/10.1086/681021.

Cite this

Kemp, Darrell J. ; Herberstein, Marie E. ; Fleishman, Leo J. ; Endler, John A. ; Bennett, Andrew T D ; Dyer, Adrian G. ; Hart, Nathan S. ; Marshall, Justin ; Whiting, Martin J. / An integrative framework for the appraisal of coloration in nature. In: American Naturalist. 2015 ; Vol. 185, No. 6. pp. 705-724.
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An integrative framework for the appraisal of coloration in nature. / Kemp, Darrell J.; Herberstein, Marie E.; Fleishman, Leo J.; Endler, John A.; Bennett, Andrew T D; Dyer, Adrian G.; Hart, Nathan S.; Marshall, Justin; Whiting, Martin J.

In: American Naturalist, Vol. 185, No. 6, 06.2015, p. 705-724.

Research output: Contribution to journalArticleResearchpeer-review

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