Chapter

Supply, Demand, Return Rates, and Resource Depression

Jason A. Cowan, Timothy A. Kohler, C. David Johnson, Kevin Cooper and R. Kyle Bocinsky

in Emergence and Collapse of Early Villages

Published by University of California Press

Published in print April 2012 | ISBN: 9780520270145
Published online September 2012 | e-ISBN: 9780520951990 | DOI: http://dx.doi.org/10.1525/california/9780520270145.003.0008
Supply, Demand, Return Rates, and Resource Depression

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Although the Pueblo people in the VEP area were farmers, hunting was an extremely important activity, and for more than 400 years provided most or all of the high-quality protein in the diet. In Village we model the absolute abundance, across the landscape and through time, of three species of game: mule deer (Odocoileus hemionus), black-tailed jackrabbits (Lepus californicus), and desert cottontails (Sylvilagus audubonii). Growth rates are determined by solving, for each cell and for each year, a discrete logistic growth function, using intrinsic rates of increase and carrying capacities appropriate for each species. Rabbit and hare abundance are modeled within 4-ha cells; deer are modeled within 1-sq-km cells. Deer, but not rabbits and hares, also move (diffuse) across the landscape at rates determined by a discrete Fisher equation. Hunting is performed by agents to meet their (parameterized) protein needs; agents make bounded, rational decisions about where to live and what to hunt from their home cells by employing the energy-minimizing strategies with which they are encoded.

Keywords: hunting; hunting return rates; mule deer; jackrabbit; rabbit; protein; diffusion; protein deficiency; human protein requirements; Village Ecodynamics Project

Chapter.  8285 words.  Illustrated.

Subjects: Anthropology

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