An Imperfect Balance: Landscape Transformations in the by David L. Lentz

By David L. Lentz

We regularly envision the hot global sooner than the arriving of the Europeans as a land of pristine ordinary attractiveness and undisturbed environments. in spite of the fact that, David Lentz bargains another view through detailing the influence of local cultures on those ecosystems ahead of their touch with Europeans. Drawing on a variety of specialists from the fields of paleoclimatology, old ecology, paleontology, botany, geology, conservation technological know-how, and source administration, this publication unlocks the key of the way the Western Hemisphere's indigenous population encouraged and remodeled their ordinary environment.

A infrequent blend of collaborators uncovers the alterations that happened in North the USA, Mexico, relevant the US, the Andes, and Amazonia. each one component to the ebook has been comprehensively prepared in order that a botanical description of the ordinary plants of the zone is coupled with a collection of case stories outlining neighborhood human impacts. From variations of plants, to adjustments in soil, flora and fauna, microclimate, hydrology, and the land floor itself, this assortment addresses one of many nice problems with our time: the human amendment of the earth.

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Extra info for An Imperfect Balance: Landscape Transformations in the Precolumbian Americas

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And J. A. Sabloff. 1974. A History of American Archaeology. : W. H. Freeman & Co. Zimmerer, K. S. 1994. Human geography and the ‘‘new ecology’’: The prospect and promise of integration. Annals of the Association of American Geographers 84(1): 108 –125. 11 This page intentionally left blank d av i d a . h o d e l l mark brenner j a s o n h . c u rt i s 2 CLIMATE CHANGE IN THE NORTHERN AMERICAN TROPICS AND SUBTROPICS SINCE THE LAST ICE AGE Implications for Environment and Culture Climate change during the past 20,000 years affected both the environments and civilizations of the Americas.

Such random changes in the climate system lack external forcing and are therefore unpredictable. The El Nin˜o–southern oscillation is perhaps the best example of climate change resulting from variability in the ocean-atmosphere system. Because of the dependence of rainfall in the Central America–Caribbean region on the position of the North Atlantic subtropical high, the North Atlantic oscillation, as measured by the inverse pressure gradient between the Azores high and the Icelandic low, may influence Caribbean climate.

In records from Costa Rica suggests increased frequency of forest fires during this period (Horn and Sanford CLIMATE CHANGE IN THE NORTHERN AMERICAN TROPICS AND SUBTROPICS F I G U R E 2 . 7 . Comparison of the oxygen isotopic record of the ostracod Cytheridella ilosvayi in a sediment core from Lake Punta Laguna, Mexico, with cultural periods of the Maya civilization. , dry periods). d. 280 to 1080, corresponding to the Classic and early Postclassic periods, was relatively dry. d. 585, 862, 986, 1051, and 1391.

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