Energetic balance in a hunting-gathering lifestyle : the observational study of controlled foraging trips in the African tropical rainforest

为了验证在非洲热带雨林中狩猎-采集生命的可能性，并揭示其能量平衡，我们设计了对喀麦隆东南部受控觅食旅行的观测调查。在得到八对巴卡狩猎采集者的合作伙伴后，我们进行了两次为期两周的旅行，在此期间，我们在2009年8月和2010年4月的村庄附近的森林里进行了两次为期两周的旅行，其间没有农业或商业食品，这是一个次要的旱季，据说野生山药块茎比较稀少。尽管环境条件恶劣，但除了少数人感冒外，几乎所有的合作者在两次旅行中都保持了健康和体重。至于能量消耗，我们正在分析心率监测系统的数据。

To verify the possibility of hunting-gathering life in the African tropical rainforest and to reveal its energetic balance we designed the observational surveys of controlled foraging trips in southeastern Cameroon. Gaining the eight couples cooperators of the Baka hunter-gatherers, we had two two-week trips, during which no-agricultural or commercial food could be used, in the forest near villages in August 2009, the minor dry season, and in April 2010, the minor rainy season where wild yam tubers were said to be scarcer. In spite of sever environmental condition, almost all cooperators kept their health and body weight during the both trips with the exception of a few cooperators who caught a cold. As to energy expenditure we are analyzing the data from the heart rate monitoring system.