Prehistoric subsistence exploitation in the lower Trinity River Delta, Texas. Final report April 1973- March 1976.

Results of recent archeological excavations at five sites in the Wallisville Reservoir suggest a pattern of differentiation in seasonal occupation of the region by discrete societal groups. This pattern is based upon the development of an efficient adaptation to a highly variable, high diversity environment. This adaptation required complex interplay between social organization, settlement size and location, technology, and the seasonal availability of certain exploitable faunal and presumably associated floral species. This concern with variables related to food item acquisition, differential access to high and low resource productivity zones, and social group size is relevant to an understanding of significant aspects of prehistoric hunter-gatherer adaptation to a basic marine environment, including demographic processes.