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Academic & Professional Books  Palaeontology  Palaeontology: General

Packrat Middens The Last 40,000 Years of Biotic Change

By: Julio L Betancourt(Editor), Thomas R Van Devender(Editor), Paul S Martin(Editor)
478 pages, 200+ b/w photos, b/w illustrations and b/w maps
Packrat Middens
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  • Packrat Middens ISBN: 9780816532841 Paperback Jan 2016 Not in stock: Usually dispatched within 1-2 weeks
  • Packrat Middens ISBN: 9780816511150 Hardback Jun 1990 Not in stock: Usually dispatched within 1-2 weeks
Selected version: £48.95
About this book Customer reviews Biography Related titles

About this book

Originally published in 1990.

From the '60s to the '90s, 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).

Similar deposits made by other mammals like hyraxes are being reported from other parts of the world. Packrat Middens brings together the contemporary findings and views of many of the researchers 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.

Customer Reviews


Julio L. Betancourt is a geoscientist with the National Research Program, Water Mission Area, US Geological Survey, and adjunct professor at the University of Arizona, USA. He is co-editor of Packrat Middens: The Last 40,000 Years of Biotic Change (1990), has published more than 150 journal articles, and co-founded both the Southern Arizona Buffelgrass Coordination Center and the USA National Phenology Network.

Thomas R. Van Devender is the Senior Research Scientist at the Arizona-Sonora Desert Museum.

Paul S. Martin is a professor emeritus of geosciences at the University of Arizona, USA.

By: Julio L Betancourt(Editor), Thomas R Van Devender(Editor), Paul S Martin(Editor)
478 pages, 200+ b/w photos, b/w illustrations and b/w maps
Media reviews

"A fascinating introduction to the world of packrat midden analysis in a series of well-written papers on the ecology of Neotoma and the paleoecology of the American Southwest. The biotic history offered by these diversified data provides a unique perspective on semiarid ecosystems and their sensitivity to climatic change."

"Highlights the extraordinary potential of middens for paleoecological study of arid regions."

"This is THE book on packrat middens, and will be for many decades to come."

"Packrat Middens provides splendid accounts of the dynamic vegetational histories of North American deserts."

"An excellent piece of work."
American Antiquity

"It is a fascinating and informative volume."
Journal of Biogeography

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