Nutritional Strategies of Myomorph Rodents in North American Grasslands

Abstract

Grass-eating and seed-eating myomorphs associate in temperate North American grassland environments. These two groups have distinctive nutritional specializations as expressed by different morphological, physiological, and behavioral characteristics. There seems to be opportunity for many more species of seed-eaters than grass-eaters to occupy a single grassland community, at least in the American area discussed herein.