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Proto-Agricultural Movement in the Eastern Highlands of New Guinea

In the Highlands of New Guinea, an ecological and demographic situation which was once widespread in the world gives rise to a kind of society which is distinctly different from that of either hunter-gatherers or settled agriculturalists. The required conditions for this deiielopment are vast regions of unexploited virgin land, low population density, and a staple food plant which can be intruded by man into these virgin ecologies. Because this type of society is molded by ecological and demographic conditions which precede the filling of the land with agricultural settlement, it may be termed proto-agricultural. E. RICHARD SORENSON, "Socio-ecological Change among the Fore of New Guinea"