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APPLICATION TO HUMAN POPULATION1

APPLICATION TO HUMAN POPULATION1 - APPLICATION TO HUMAN...

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APPLICATION TO HUMAN POPULATIONS A number of studies have quantified energy flow through human populations This work is time-consuming and often subject to estimation errors, but it yields some interesting insights into human ecology Will first briefly discuss methodology involved, then look in detail at a single case study (Nuñoa Quechua of highland Peru) Finally, examine overall historical trends in energy flow Methodology To quantify energy flow, have to measure 1) labor inputs (time and energy); 2) production outputs (energy harvested); and 3) food consumption The last of these is hardest to do accurately, in part because one must account for exchange and waste Labor inputs measured either by time-energy budgets or by calorimetry Collecting time-energy budgets relatively straightforward; involves establishing categories for different types of behavior (to monitor changes in expenditure level and allocation of labor to different domains of behavior), and either observing directly or
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