Green Equilibrium: The vital balance of humans and natureby Christopher Wills
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In Green Equilibrium, Christopher Wills explains the rules by which ecosystems maintain a diversity of interdependent species, in particular the balance of predators and prey. Wills is both an eminent academic and a hugely experienced field-biologist. In presenting the concept of 'green equilibrium', he draws on a fascinating range of examples, including coral reefs off the densely populated Philippines, the isolated and densely forested valleys of Papua New Guinea, the changing Himalayan kingdom of Bhutan, and a Californian ranch being allowed to return to a wild state. In each case he assesses the impact of modern changes and attempts at conservation on these delicately balanced ecosystems. Wills shows how human populations, too, are an integral part of the picture. We now know from genetic evidence that over the course of history, as humans spread out of Africa, populations adapted as a result of environmental conditions. Striking new evidence indicates that some human populations carry genes from past encounters with other hominids (Neanderthals and Denisovans), as well as genetic adaptations to local hazards such as malaria. Wills argues that the most effective approaches to conserving green equilibria come out of evolutionary insights, and from close involvement of the local communities who have lived and adapted to them.
"The author argues that human beings not only shape ecosystems, but are shaped by them. Thus, he writes, while we have pushed the green equilibrium out of balance in many places, making them unsustainable and threatening our own existence, the evolution of our species has given us 'pretty good brains,' with the ability to understand the problems we have created and the power to solve them. Wills is both a skilled storyteller and a talented photographer and he provides an eye-opening account of the long history of human migrations out of Africa and into Europe, Asia, Australia and the Americas."
"[Wills'] book is an engaging mixture of ecologist's travelogue and science exposition, which manages to convey a wide range of important ideas in evolution and ecology in the context of ecosystems around the world, including California, Sri lanka, Thailand, Africa, New Guinea, and more." Biological Conservation
- OUP Oxford
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Meet the Author
Christopher Wills is Professor of Biological Sciences and member of the Center for Molecular Genetics at the University of California. He received the Award for Public Understanding of Science and Technology from the American Association for the Advancement of Science in 1999. His research interests include the maintenance of genetic variability in human populations, the forces that maintain variation in complex ecosystems such as rainforests and coral reefs, the evolution of diseases, and the evolution of our species. He is the author of The Darwinian Tourist (OUP, 2010).
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