Cuckoos, Cowbirds and Other Cheats

ISBN: 9781408136669 出版年：2010 页码：331 Nick Davies Bloomsbury Publishing

In this fascinating new boodescribes the natural histories of these brood parasites and examinexciting questions they raise about the evolution of cheating and the arms race between parasites and their prey. Brood parasites fill their armory with adaptations including exquisite egg mimicry, rapid laying, ejection of host eggs, murder chick mimicry and manipulative begging behavior: ploys shown by recent research to have evolved in response to host defense behavior or through competition among the parasites themselves. While many host species appear defenseless, accepting parasite eggs quite unlike their own, many are more discriminating against odd-looking eggs and some have evolved the ability to discriminate against odd-looking chicks as well. How is this arms race conducted? Will defenseless hosts develop defenses in time, or are there constraints which limit the evolution and perfection of host defenses? And why are so few species obligeggs Have host defenses limited the success of brood parasitism, or is it in fact muthan we suspect, but occurring mainparasitize the nest of their own kind? All of these puzzles are examined in descriptions of the natural history groups of parasites in turn. Here is a book with wide appeal, both to amateur naturalists fascinated by this most singular and macabre of behaviors and by ornithologists and ecologists interested in the evolution of ecology and behavior. The story takes us from the classic field work earlier this century by pioneer ornithologists such as Edgar Chance, Stuart Baker, Herbert Friedmann and others, through experimental field work and molecular techniques of today's leading scientists. We visit brood parasites in Europe, Asia, Japan, Africa, Australasia, and North and South America, to look worlds most interesting birds and some of biology's most interesting questions, many of which still beg answers from ornithologists in the future. Brilliant illustrations by David Quinn illuminate the species discussed, showing many behaviors never before illustrated and conveying the thrill of watching these astonishing birds in the wild.