Increases in population size are associated with the adoption of Neolithic agricultural practices in many areas of the world, but rapid population growth within the Dingsishan cultural group of southern China pre-dated the arrival of rice and millet farming in this area. In this article, the authors identify starch grains from taros (Colocasia) and yams (Dioscorea) in dental calculus and on food-processing tools from the Dingsishan sites of Huiyaotian and Liyupo (c. 9030–6741 BP). They conclude that the harvesting and processing of these dietary staples supported an Early Holocene population increase in southern East Asia, before the spread of rice and millet farming.

Early Holocene populations in southern China and Southeast Asia are generally considered to have continued practising hunting and gathering, while millet and rice cultivation developed to the north and east. Dingsishan, the oldest Holocene open-air site in South-east Asia, however, had yet to provide direct evidence for human health and subsistence strategies. The authors present isotopic and demographic analyses of Dingsishan individuals from 9000–7000 BP, indicating that the inhabitants relied on freshwater resources, particularly in the third period (c. 7000 BP). Comparison with contemporaneous farming populations also reveals a seemingly higher average life expectancy for the fisher-hunter-gatherers at Dingsishan.