In pre-Columbian times, the Zenu Indians established drainage systems in the wetlands of the Colombian Caribbean that enabled them to exploit this rich ecosystem in a sustained manner. Modern inhabitants of the region are, however, exposed to a regimen of periodic flooding that limits their...

Social scientists have long examined the changing role of the individual, and the influence of individualism in social and economic arrangements as well as behavioral decisions. With respect to co-operative behavior among farmers, however, the ideology of individualism has been little theorized...