Comparison of wild edible plant diversity and foraging strategies in two aboriginal communities of northwestern Patagonia.

Compares edible plant richness, diversity and differential patterns of use in two Mapuche communities of Argentina. Details of study using diversity indices, niche breadth and optimal foraging theory; Results indicating that the diversity of wild plants used in Rams and Cayulef is associated with the variety of gathering environments they visit; Comparison of diversity indices among the three environments within each community; Data indicating that the restricted access to Pehuen forest (Araucaria araucana) is the main factor which seems to limit wild plant diversity used in these Mapuche communities.