How and Why Species Multiply pdf epub mobi txt 电子书下载 2025

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Peter R. Grant is the Class of 1877 Professor of Zoology at Princeton University. His books include Ecology and Evolution of Darwin's Finches (Princeton).

B. Rosemary Grant is a senior research scholar in the Department of Ecology and Evolutionary Biology at Princeton University. She is the coauthor, with Peter R. Grant, of Evolutionary Dynamics of a Natural Population: The Large Cactus Finch of the Galapagos.

出版者:Princeton University Press

作者:Peter R. Grant

出品人:

页数:256

译者:

出版时间:2007-10-22

价格:USD 49.95

装帧:Hardcover

isbn号码:9780691133607

丛书系列:

图书标签:

Evolution
Speciation

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Charles Darwin's experiences in the Galpagos Islands in 1835 helped to guide his thoughts toward a revolutionary theory: that species were not fixed but diversified from their ancestors over many generations, and that the driving mechanism of evolutionary change was natural selection. In this concise, accessible book, Peter and Rosemary Grant explain what we have learned about the origin and evolution of new species through the study of the finches made famous by that great scientist: Darwin's finches. Drawing upon their unique observations of finch evolution over a thirty-four-year period, the Grants trace the evolutionary history of fourteen different species from a shared ancestor three million years ago. They show how repeated cycles of speciation involved adaptive change through natural selection on beak size and shape, and divergence in songs. They explain other factors that drive finch evolution, including geographical isolation, which has kept the Galpagos relatively free of competitors and predators; climate change and an increase in the number of islands over the last three million years, which enhanced opportunities for speciation; and flexibility in the early learning of feeding skills, which helped species to exploit new food resources. Throughout, the Grants show how the laboratory tools of developmental biology and molecular genetics can be combined with observations and experiments on birds in the field to gain deeper insights into why the world is so biologically rich and diverse. Written by two preeminent evolutionary biologists, How and Why Species Multiply helps to answer fundamental questions about evolution--in the Galpagos and throughout the world.

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Really exciting! if you know and are interested in the speciation process, questions such as What is Darwin's finches? Where do they come from? How many are they? How does a new species form in the initial stage? Is migration from the main population hurtin...

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