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Packrat Middens - The Last 40,000 Years of Biotic Change (Paperback, 2nd)
Loot Price: R1,488
Discovery Miles 14 880
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Packrat Middens - The Last 40,000 Years of Biotic Change (Paperback, 2nd)
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Over the past thirty years, late Quaternary environments in the
arid interior of western North America have been revealed by a
unique source of fossils: well-preserved fragments of plants and
animals accumulated locally by packrats and quite often encased,
amberlike, in large masses of crystallized urine. These packrat
middens are ubiquitous in caves and rock crevices throughout the
arid West, where they can lie preserved for tens of thousands of
years. More than a thousand of these deposits have been dated and
analyzed, and middens have supplanted pollen records as a
touchstone for studying vegetation dynamics and climatic change in
radiocarbon time (the last 40,000 years). Now, similar deposits
made by other mammals like hyraxes are being reported from other
parts of the world. This book brings together the most recent
findings and views of many of the researchers now investigating
fossil middens in the United States, Mexico, Africa, the Middle
East, and Australia. The contributions serve to open a forum for
methodological concerns, update the fossil record of various
geographic regions, introduce new applications, and display the
vast potential for fossil midden analysis in arid regions
worldwide. The findings presented here will serve to foster
regional research and to promote general studies devoted to global
climate change. Included in the text are more than two hundred
charts, photographs, and maps.
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