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Robustness and Resilience across Scales: Migration and Resource Degradation in the Prehistoric U.S. Southwest

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Type: Journal Article
Author: Anderies, John M.; Hegmon, Michelle
Journal: Ecology and Society
Volume: 16
Date: 2011
URI: https://hdl.handle.net/10535/7463
Sector: General & Multiple Resources
Region: North America
Subject(s): migration
natural resources
Abstract: "Migration is arguably one of the most important processes that link ecological and social systems across scales. Humans (and other organisms) tend to move in pursuit of better resources (both social and environmental). Such mobility may serve as a coping mechanism for short-term local-scale dilemmas and as a means of distributing organisms in relation to resources. Movement also may be viewed as a shift to a larger scale; that is, while it may solve short-term local problems, it may simultaneously have longer term and larger scale consequences. We conduct a quantitative analysis using dynamic modeling motivated by an archaeological case study to explore the dynamics that arise when population movement serves as a link between spatial scales. We use the model to characterize how ecological and social factors can lead to spatial variation in resource exploitation, and to investigate the circumstances under which migration may enhance or reduce the capacity of the system to absorb shocks at different scales."

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