Abstract
The Mountain Pima of Chihuahua, Mexico, were adversely affected by a severe drought in late 1987 and 1988 which greatly reduced crop yields. The people responded by sale of livestock, temporary migration for wage labor, and increased utilization of noncultivated plant resources. Changes in availability of wild resources differed from species to species. Arctostaphylos pungens showed zero yield in 1988; yields of Opuntia spp. and Berberis pimana were greatly reduced. Hymenocallis pimana, Dahlia coccina, D. sheriffii, Agave shrevei spp. matapensis, Arbutus xalapensis, A. arizonica, Prunus gentryi and P. serotina var. virens showed negligible decreases in yields, as did several weedy species, including Amaranthus hybridus, Portulaca oleracea, Jaltomata procumbens, and Physalis spp. Roots of Prionosciadium townsendii increased in availability because of a decrease in the percentage of the population undergoing reproduction. The observed increase in wild plant utilization agrees with predictions of the diet br...
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
