Large Shell Middens and Hunter-Gatherer Resource Intensification Along the West Coast of South Africa: The Elands Bay Case Study

"Megamiddens" appear along the West Coast of South Africa c. 30002000 BP. Kalahari San ethnography was used initially to explain them as processing localities given the massive volumes of marine shell and low densities of other remains. However, recent research in Lamberts Bay using a resource intensification model seems to explain more of the observed archaeological variability. In this paper, the evidence of Elands Bay megamiddens is studied in this same light and similar conclusions are arrived to. Rising population levels between 3500 and 2500 BP are followed by a reformulation of the foraging ecology of bothmarine and terrestrial prey, with isotopic values from human skeletons and archaeological data showing high marine food consumption during the megamidden period when compared to other stages. Signs of black mussel overexploitation are apparent by 3000 BP, although shellfish harvesting is most intense c. 2600-2200 BP. Further sampling of Elands Bay megamiddens is needed to better understand shellfish foraging between 3000 and 2500 BP. Foragers hunted less large mobile game by 2600 BP and instead small territorial bovids were procured more heavily at this time with tortoise collection being intensified between 3000 and 2600 BP. Cave usage may have been very different to that before and after the megamidden millennium given the lack of visits to these sites in Elands Bay at this time.