Search results for ""Author Geoffrey E. Hill""

One cannot help being struck with wonder at the vivid pink of 10,000 flamingos rising from Lake Nakuru or the glowing red gorget of a ruby-throated hummingbird feeding outside the kitchen window. How birds produce the brilliant and striking coloration of their feathers and other body parts is the focus of this first volume of Bird Coloration. It has been more than 40 years since the mechanisms of color production of birds have been reviewed and synthesized and in those 40 years new pigments have been discovered, new genetic mechanisms have been described, new theories have been developed, and hundreds of new experiments have been conducted.Geoffrey Hill and Kevin McGraw have assembled the world’s leading experts in perception, measurement, and control of bird coloration to contribute to this book. This sumptuously illustrated volume synthesizes more than 1,500 technical papers in this field. The focus is on the three primary mechanisms of color production—melanin pigmentation, carotenoid pigmentation, and structural coloration—but less common as well as newly described mechanisms of color production are also reviewed in detail. The visual perception of birds and the best ways to collect and analyze color data are, for the first time, presented as part of the review of mechanisms of coloration. This book will be essential reading for biologists studying animal coloration, but it will also be treasured by anyone curious about how birds produce and perceive their bold and brilliant color displays.

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In this companion volume to Bird Coloration, Volume 1: Mechanisms and Measurements, Geoffrey E. Hill and Kevin J. McGraw have assembled some of the world’s leading experts in the function and evolution of bird coloration to contribute to a long-overdue synthesis of a burgeoning field of inquiry. In Volume 2, the authors turn from the problem of how birds see and produce color, and how researchers measure it, to the function of the colorful displays of birds and the factors that shape the evolution of color signals.The contributors to this volume begin by examining the function of coloration in a variety of contexts from mate choice, to social signaling, to individual recognition, synthesizing a vast amount of recent findings by researchers around the world. The volume and the series conclude with chapters that consider coloration from an explicitly evolutionary perspective, examining selective pressures that have led to the evolution of colors and patterns on body and plumage. These functional and evolutionary studies build from research on mechanisms of production and controls of expression, covered in the previous volume, bringing the study of color full circle.This sumptuously illustrated book will be essential reading for biologists studying animal coloration, but it will also be treasured by anyone curious about why birds are colorful and how they got that way.

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