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The upper limit on the ultimate productivity of any given food-getting system and the size of the population it can support.
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A theory that suggests that foragers will choose the animal and plant species that tend to maximize their caloric return for the time they spend searching, killing, collecting, and preparing.
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The exploitation of wild plants and animals that already exist in the natural environment.
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Occurring approximately 10,000 years ago, the period in which humans for the first time produced their food by means of horticulture or animal husbandry.
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Form of food production that involves the keeping of domestic herd animals and is found in areas of the world that cannot support agriculture because of inadequate terrain, soils, or rainfall.
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A type of pastoralism in which some of the men in society move their livestock seasonally to different pastures while the women, children, and other men remain in permanent settlements.
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A type of pastoralism in which there are no permanent villages, and the whole social unit of men, women, and children moves the livestock to new pastures.
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Differs from horticulture in that agriculture relies on animal power and technology rather than human power alone.
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Like herders, but not isolated or self-sufficient. Have ties to the larger unit (city or state)
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Food production that relies on technological sources of energy rather than human or animal energy.
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