Date: Mon, 08 Apr 1996 16:39:27 -0600
Subject:  TREE Article, part 3 of 3



Conclusion
	When people forage for a living, the day-to-day problems posed by
living on wild foods, using relatively simple tools, traveling on
foot, and enlisting mates and allies from kin and neighbors in small
face-to-face communities are open to direct ethnographic observation.
 Investigators can develop and test hypotheses about the
fitness-related constraints such circumstances impose, how tradeoffs
vary by age, sex, and with features of local ecology.  Longer reviews
include topics not covered here.1,15,34-35  If we assume that similar
tradeoffs shape phenotypes of similar species, results have
implications for behavioral variation not only among modern people in
other circumstances, but also for predictions about ancestral and
collateral hominids.  Focusing on individuals as strategists, and on
the fitness related tradeoffs they face, reveals links between
foraging choices and other aspects of social behavior, leading to a
range of new hypotheses about variation in subsistence practices and
mating and parenting both past and present.


Acknowledgement
We thank Elizabeth Cashdan for good advice. 


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