
Recently named in the Times as one of the 100 most influential UK scientists, Prof Callum Roberts is an award-winning expert on Marine Conservation. His main research interests include documenting the impacts of fishing on marine life, both historic and modern, and exploring the effectiveness of marine protected areas. For the last 10 years he has used his science background to make the case for stronger protection for marine life at both national and international levels. His award winning book, The Unnatural History of the Sea, charts the effects of 1000 years of exploitation on ocean life. He lectures throughout the US, UK and Europe, and is frequently called on to give government briefings to the US Congress and Senate, as well as Whitehall. Callum is a WWF UK Ambassador, trustee of Seaweb, Fauna and Flora International and Blue Marine Foundation, and advisor to Save our Seas.
A Silent Spring for oceans, written by "the Rachel Carson of the fish world" (The New York Times)Who can forget the sense of wonder with which they discovered the creatures of the deep? In this vibrant hymn to the sea, Callum Roberts—one of the world’s foremost conservation biologists—leads readers on a fascinating tour of mankind’s relationship to the sea, from the earliest traces of water on earth to the oceans as we know them today. In the process, Roberts looks at how the taming of the oceans has shaped human civilization and affected marine life.We have always been fish eaters, from the dawn of civilization, but in the last twenty years we have transformed the oceans beyond recognition. Putting our exploitation of the seas into historical context, Roberts offers a devastating account of the impact of modern fishing techniques, pollution, and climate change, and reveals what it would take to steer the right course while there is still time. Like Four Fish and The Omnivore’s Dilemma, The Ocean of Life takes a long view to tell a story in which each one of us has a role to play.
Humanity can make short work of the oceans’ creatures. In 1741, hungry explorers discovered herds of Steller’s sea cow in the Bering Strait, and in less than thirty years, the amiable beast had been harpooned into extinction. It’s a classic story, but a key fact is often omitted. Bering Island was the last redoubt of a species that had been decimated by hunting and habitat loss years before the explorers set sail.As Callum M. Roberts reveals in The Unnatural History of the S ea, the oceans’ bounty didn’t disappear overnight. While today’s fishing industry is ruthlessly efficient, intense exploitation began not in the modern era, or even with the dawn of industrialization, but in the eleventh century in medieval Europe. Roberts explores this long and colorful history of commercial fishing, taking readers around the world and through the centuries to witness the transformation of the seas.Drawing on firsthand accounts of early explorers, pirates, merchants, fishers, and travelers, the book recreates the oceans of the waters teeming with whales, sea lions, sea otters, turtles, and giant fish. The abundance of marine life described by fifteenth century seafarers is almost unimaginable today, but Roberts both brings it alive and artfully traces its depletion. Collapsing fisheries, he shows, are simply the latest chapter in a long history of unfettered commercialization of the seas.The story does not end with an empty ocean. Instead, Roberts describes how we might restore the splendor and prosperity of the seas through smarter management of our resources and some simple restraint. From the coasts of Florida to New Zealand, marine reserves have fostered spectacular recovery of plants and animals to levels not seen in a century. They prove that history need not repeat we can leave the oceans richer than we found them.
A hugely affecting memoir by the world's leading coral reef scientist, revealing the thrill of diving and the vital science and story of these majestic reefs.How did one of the world’s preeminent marine conservation scientists fall in love with coral reefs? We first meet Callum as a young student who had never been abroad, spending a summer helping to map the unknown reefs of Saudi Arabia. From that moment, when Callum first cleared his goggles, he never looked back. He went on to survey Sharm al-Sheikh, and from there he would dive into the deep in the name of research all over the world, from Australia’s imperiled Great Barrier Reef to the hardier reefs of the Caribbean.Reef Life is filled with astonishing stories of adventure and the natural world, which are by turns lyrical and laced with a wonderful wry humor. Callum illuminates the science of our oceans and reefs and his book, combined with the stunning photographs from Alex Mustard, will also commit readers to support Callum’s goal to preserve 10 percent of the world’s oceans.
A superb photographic celebration of marine life.Our seas are host to an extraordinary variety of plant and animal life, but much of it remains mysterious and great imagery is surprisingly hard to find. Alex Mustard is one of the world’s leading underwater photographers and his images are so crisp and immediate that the animals seem to swim out of the water towards you. This beautiful book gathers together a selection of his award-winning images and a number of new ones to create a vivid picture of the seas and oceans and the animals that inhabit them, each chapter accompanied by a 1500 word essay and extended captions written by leading natural history writer, Professor Callum Roberts.The text addresses the issue of change in the oceans along with tales of oceanography, marine life and human history in the seas and aims to help the reader to get to know the oceans, understand how marine animals live their lives and how they have, are and may well adapt to change.
Protecting land in parks is often seen as coming at the expense of rural economic development. Yet recent events such as the contentious debate over the development of Canyon Forest Village on the south rim of the Grand Canyon suggest just the healthy natural systems can be enormously valuable to rural economies. National Parks and Rural Development offers a thorough examination of the interdependent roles of national parks and the economies of rural communities in the United States. Bringing together the thinking and views of economists, historians, sociologists, recreation researchers, and park managers, the book considers how those roles can be most effectively managed, as it a wide-ranging review of history and important concepts in rural development and parks management five case studies of rural development near national parks that identify lessons learned, principles applied, mistakes committed, and advances made personal essays from leaders in the parks management field For each section, the editors offer introductory discussions that provide context and highlight key points. The editors also provide a detailed conclusion which summarizes policy implications and presents specific recommendations for improving rural development and park management policies.Case studies Cape Cod National Seashore, Alaskan parks and wilderness areas, Yellowstone National Park, the Grand Canyon, and three parks in the Pacific Northwest (Mt. Rainier, Olympic, and North Cascades). ational Parks and Rural Development is a unique synthesis and guide to solving conflicts between the needs of human communities and nature near federal lands. It will be an important work for agency personnel, nongovernmental organizations, and students and scholars of rural economic development, public policy, environmental economics, and related fields.
by Callum Roberts
Rating: 5.0 ⭐
A new approach for maximizing op amp behavior in circuit designs- without extensive mathematical analysis This guide from one of the world's leading op amp designers takes you through the causes of op amp performance problems- such as oscillations, errors, bandwidth limitations, noise, and ...Download Link : readmeaway.com/download?i=0070245223 0070245223 Optimizing Op Amp Performance PDF by Jerald G. GraemeRead Optimizing Op Amp Performance PDF from McGraw-Hill Professional,Jerald G. GraemeDownload Jerald G. Graeme's PDF E-book Optimizing Op Amp Performance
by Callum Roberts
by Callum Roberts
by Callum Roberts
Libro usado en buenas condiciones, por su antiguedad podria contener señales normales de uso
by Callum Roberts
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