Abstract:
Population density increases whenever a population grows more rapidly, or shrinks more slowly, than the area it inhabits; areal contraction therefore accelerates density increase. This consideration not only reinforces Dickson's (1987) suggestion that circumscription by anthropogenic environmental destruction contributed to the rise of some early states; it also implies that rate of density increase should be distinguished, as a motor of sociocultural evolution, from density itself. Hence the rise of the state in SW Iran, and occasional instances of high density among non-state societies, are not necessarily inconsistent with population-pressure theories. Au