Human responses to changing environments in Central Africa between 40,000 and 12,000 BP

Reconstructions of the Equatorial forest in Central Africa fuel the debate on whether hunter-gatherers at the end of the Pleistocene were capable of living in or off the forest prior to the advent of agriculture. Their traces are rare and often reduced to their stone equipment. In an attempt to see to what extent technology and environmental exploitation are interrelated, all Central African sites dated between 40,000 and 12,000 BP are analyzed for their material culture, the environmental setting at the time of the occupation, and the exploitation of that environment. Although the evidence is still circumstantial, two large technological traditions have been recognized in Central Africa at the end of the Pleistocene, the Lupemban and microlithic industries, and both are associated with a variety of environments. This, in combination with a fragmented forest and concomitant increase of ecotone during the Last Glacial Maximum, would have enhanced rather than hampered human occupation in the area. It may be argued that the inherent flexibility and capability of exploiting a variety of environments enabled the hunter-gatherer communities to face and adapt to environmental changes regardless of stone technology.