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Animals - General, Nature
Concealing Coloration in Animals by Judy Diamond β€” book cover

Concealing Coloration in Animals

by Judy Diamond, Alan B. Bond
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Overview

The biological functions of coloration in animals are sometimes surprising. Color can attract mates, intimidate enemies, and distract predators. But color patterns can also conceal animals from detection. Concealing coloration is unusual because it is an adaptation not only to the visual features of the environment but also to the perceptual and cognitive capabilities of other organisms. Judy Diamond and Alan Bond bring to light the many factors at work in the evolution of concealing coloration.

Animals that resemble twigs, tree bark, stones, and seaweed may appear to be perfect imitations, but no concealment strategy is without flaws. Amid the clutter of the natural world, predators search for minute, telltale clues that will reveal the identity of their prey. Predators have remarkable abilities to learn to discriminate the fake from the real. But prey have their own range of defensive tactics, evolving multiple appearances or the ability to change color at will. Drawing on modern experimental evidence of the functional significance of animal color strategies, Diamond and Bond offer striking illustrations of how the evolution of features in one organism can be driven by the psychology of others.

Concealing Coloration in Animals takes readers on a scientific adventure that explores creatures inside mats of floating seaweed, mice and lizards on desert rocks and sand, and rare parrots in the rainforest of New Zealand. Color photographs extensively document the mind-boggling array of deceptive strategies animals use to blend in, mislead, or vanish from view.

About the Author, Judy Diamond

Judy Diamond is Professor and Curator at the University of Nebraska State Museum.

Alan B. Bond is Research Professor of Biological Sciences and Co-Director of the Center for Avian Cognition at the University of Nebraska–Lincoln.

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Editorials

John A. Endler

This book is a lovely survey, for the general public, of all that is known about concealing coloration, and very nicely weaves the history of the subjects with the facts.

Kirkus Reviews

How differences in coloration within a species reveal new dimensions in the operation of natural selection. "Studying animal coloration is an exercise in time travel, illuminating the conditions of the past that have produced the diversity of the present," write Diamond (Curator/Univ. of Nebraska State Museum; World of Viruses, 2012, etc.) and Bond (Center for Avian Cognition/Univ. of Nebraska), who follow their earlier collaboration (Kea, Bird of Paradox: The Evolution and Behavior of a New Zealand Parrot, 1999) with this exploration of how the coloration on bird feathers, fish scales and fur are a response to a complex array of factors. Primary among these is the extent to which coloration allows prey to deceptively merge into the background, providing an edge against predators in the struggle for survival. Equally important is patterning, "the arrangement of splotches, speckles, stripes, and shading that make up an animal's visual appearance." In a fascinating sidelight, the authors examine how Abbott Henderson Thayer, a prominent American landscape painter, applied his observations about animals to the problem of military camouflage during World War I. Diamond and Bond cover modern research on the change in the numbers of light and dark moths in response to the amount of air pollution and explain how fish have evolved darks scales on top and light underbellies to create the appearance of a flattened object. The deceptive practices of prey also affect the cognitive evolution of predator species, which learn to closely observe their targets, detecting small motions and searching for giveaway signs in order to detect them. This in turn provides an evolutionary advantage to prey that can learn to hide distinguishing features and maintain a still posture. Combining a naturalist's eye with scientific rigor, the authors report on modern experiments on the mechanisms of the selective process that support these observations. An intriguing study encompassing "a convergence of disciplines ranging from population ecology and animal behavior to genetics, molecular biology and biophysics."

Book Details

Published
April 9, 2013
Publisher
Harvard University Press
Pages
288
Format
Hardcover
ISBN
9780674052352

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