Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 110, Issue 2, Pages 443-447Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1201341110
Keywords
climate change; demography; hunter-gatherers; paleoecology
Categories
Funding
- National Science Foundation (NSF) [BCS-0514863, 0710868]
- Wyoming Bureau of Land Management
- United States Geological Survey and Wyoming Water Development Commission [06HQGR0129, WWDC 25]
- NSF CAREER [BCS-0845129]
- Wyoming NSF Experimental Program to Stimulate Competitive Research Undergraduate Fellowship [EPS-0447681]
- Wyoming National Aeronautics and Space Administration Space Grant Consortium Undergraduate Fellowship [NNG05G165H]
- Division Of Behavioral and Cognitive Sci
- Direct For Social, Behav & Economic Scie [0845129, 0710868] Funding Source: National Science Foundation
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Ancient cultural changes have often been linked to abrupt climatic events, but the potential that climate can exert a persistent influence on human populations has been debated. Here, independent population, temperature, and moisture history reconstructions from the Bighorn Basin in Wyoming (United States) show a clear quantitative relationship spanning 13 ka, which explains five major periods of population growth/decline and similar to 45% of the population variance. A persistent similar to 300-y lag in the human demographic response conforms with either slow (similar to 0.3%) intrinsic annual population growth rates or a lag in the environmental carrying capacity, but in either case, the population continuously adjusted to changing environmental conditions.
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