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Botanist Homer L. Shantz took photographs of the Kenyan landscape in the early 1920s as part of his effort to document the natural plant cover of Africa. He returned there with B. L. Turner in the late 1950s to repeat the photographs. In 1990, Raymond Turner traveled to Kenya under the auspices of the National Geographic Society in order to match the photographs made by Shantz and B.L. Turner and to show the changes that have occurred over the decades since Shantz's initial journey. Turner's comparative photos and research into the botanical record dramatically reflect the encroachment of woody plants in arid areas and the increasing human impact in more humid locales. Turner's discussions of the photographs and the conclusions he draws provide an important reference for ecologists, geographers, botanists, and other researchers attempting similar studies. By documenting vegetation change in a region broadly similar climatically to North America's subtropical deserts and grasslands but different in its wildlife and its human culture, the book shows that the endpoints of landscape status are similar despite the vastly different histories of these two regions of the world.
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Part natural history, part call to conservation, and part love song, this evocative and informative excursion into the Sonoran Desert along the U.S.-Mexico border brings to life the beauty of a sparse and seductive terrain.
Revised Edition with New Afterword from the Author Time #1 Nonfiction Book of the Year Finalist for the National Book Critics Circle Award Over 3 million copies sold in 35 Languages "On the day after humans disappear, nature takes over and immediately begins cleaning house - or houses, that is. Cleans them right off the face of the earth. They all go." What if mankind disappeared right now, forever... what would happen to the Earth in a week, a year, a millennium? Could the planet's climate ever recover from human activity? How would nature destroy our huge cities and our myriad plastics? And what would our final legacy be? Speaking to experts in fields as diverse as oil production and ecology, and visiting the places that have escaped recent human activity to discover how they have adapted to life without us, Alan Weisman paints an intriguing picture of the future of Earth. Exploring key concerns of our time, this absorbing thought experiment reveals a powerful - and surprising - picture of our planet's future.
Current Geographical Publications (CGP) is a non-profit service to the scholarly community initiated in 1938 by the American Geographical Society of New York. Beginning in 2006, the format changed to include the tables of contents of current geographical journals. The journal titles listed link to web pages or PDF scans of the current issue's contents.
Diabetes. Its Medical and Cultural History covers the history of scientific inquiry into this affliction from antiquity to the discovery of insulin (1921) with concurrent consideration of the history of the patient and the cultural historical background. The reprints of medical historical studies discuss general relationships as well as specific details and exceptional research achievements of the past. Included in the bibliography of primary sources are the most important historical contributions in diabetic research and diabetic therapy with the author's name and information on the place of publication. The bibliography of secondary literature consolidates international studies from the past century to the present on the history of the theory of diabetes and therapeutic approaches. Illustrations and literary texts document cultural historical relationships. In index of persons and items facilitates use of this work which is intended to provide a stimulus for the physician, medical historian, medical student, general historian as well as diabetics themselves.
The Sonoran Desert, a fragile ecosystem, is under ever-increasing pressure from a burgeoning human population. This ecological atlas of the region's plants, a greatly enlarged and full revised version of the original 1972 atlas, will be an invaluable resource for plant ecologists, botanists, geographers, and other scientists, and for all with a serious interest in living with and protecting a unique natural southwestern heritage. An encyclopedia as well as an atlas, this monumental work describes the taxonomy, geographic distribution, and ecology of 339 plants, most of them common and characteristic trees, shrubs, or succulants. Also included is valuable information on natural history and et...
Woody wetlands constitute a relatively small but extremely important part of the landscape in the southwestern United States. These riparian habitats support more than one-third of the regionÕs vascular plant species, are home to a variety of wildlife, and provide essential havens for dozens of migratory animals. Because of their limited size and disproportionately high biological value, the goal of protecting wetland environments frequently takes priority over nearly all other habitat types. In The Ribbon of Green, hydrologists Robert H. Webb, and Stanley A. Leake and botanist Raymond M. Turner examine the factors that affect the stability of woody riparian vegetation, one of the largest c...
Plants that Fight Cancer, Second Edition, is a compilation that reviews cancer treatment and research-based information on the plant kingdom as the source of both known and novel chemical moieties and mixtures, many of them still under identification. This new edition follows the organization of the first book with a considerable expansion of content that more than doubles the volume of information. Divided into four segments, the first part is dedicated to a review of our current knowledge of cancer, the different types and incidence, the molecular pathways of the disease, and the various treatment protocols, with an emphasis on chemotherapy. The second part is a brief journey in pharmacogn...