中纬度到北纬的狩猎经济:不可预测的回报,营养限制,“肉”贮藏,和考古难题

John D. Speth
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引用次数: 0

摘要

中纬度到北纬的狩猎人群每天摄入的蛋白质不能超过300 克(1200 千卡)。超过这个极限可能会在一两周内导致身体虚弱,甚至致命,这种情况被称为“兔子饥饿”。剩余的能量不足必须用非蛋白质来源,主要是动物脂肪来填补。为了尽量减少兔子饿死的风险,狩猎人群通常会摄入蛋白质远低于300 克的食物,脂肪占总热量的三分之二到四分之三。野生有蹄类肌肉几乎没有肌内脂肪,肌外脂肪是有限的,并且经常随季节消耗。因此,只要有可能,猎人就以最胖的动物为目标,主要取走最胖的身体部位,丢弃大部分瘦肌肉(尤其是大腿和肩膀),而且经常每天杀死多只动物,只是为了获得足够的脂肪。北美的集体驱赶野牛,尽管他们明显成功地杀死了几十到几百只动物,但往往缺乏营养,许多,有时是大多数,尸体只是腐烂,大部分或完全没有受到影响。如果一天的肉,特别是脂肪的产量超过了需要,采集者通过以下方式储存多余的肉:(1)大吃大喝,增加身体脂肪;(二)在营地内或者营地附近藏匿物资的;(3)将剩余物资作为“流动”物资从一个营地运送到另一个营地;(4)创建场外缓存,这些缓存通常在创建后几个月才被使用。论文的结论是,从这些观察中得出了一系列违反直觉的考古含义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Mid- to northern latitude hunting economies: Unpredictable returns, nutritional constraints, "meat" caching, and archaeological conundrums
Mid- to northern latitude hunting peoples could not consume more than ∼300 g of protein per day (∼1200 kcal). Exceeding that limit could lead within a week or two to a debilitating, even lethal condition known as "rabbit starvation." The remaining energy deficit had to be filled using non-protein sources, mostly animal fat. To minimize the risk of rabbit starvation, hunting peoples typically consumed diets in which protein remained well below 300 g and fat contributed two-thirds to three-quarters of total calories. Wild ungulate muscle has almost no intramuscular fat, and extramuscular fat is limited and often depleted seasonally. Thus, whenever possible, hunters targeted the fattest animals, took primarily the fattiest body parts, discarded much of the lean muscle (especially thighs and shoulders), and often killed multiple animals each day just to get enough fat. North American communal bison drives, despite their obvious success at killing dozens to hundreds of animals, were often nutritional failures, with many, at times most, of the carcasses simply left to rot, largely or entirely untouched. If the day's yield of meat and especially fat exceeded needs, foragers stored the surplus by: (1) feasting and putting on body fat; (2) stashing reserves in or near camp; (3) transporting surpluses from camp to camp as "mobile" stores; and (4) creating off-site caches which were often not utilized until months after they were created. The paper concludes by exploring a wide range of counterintuitive archaeological implications drawn from these observations.
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