Competitive exclusion is a key concept in ecology describing the exclusion of one species by another from access to a limited resource. Competitive interactions between chipmunk species in the Great Basin, documented by James Brown in 1970, are often used as a textbook example of competitive exclusion. Whether competitive interactions...
When people think of fossils, they generally imagine the bones of large, charismatic animals. However, small mammals are an ecologically important group of organisms that show up frequently in the fossil record, and can frequently function as indicators for local environmental and ecological conditions (Terry, 2007, 2010). Rodent and rabbit...
Rapid changes in global climate have put many species at risk, particularly niche
specialists. The Chisel-toothed kangaroo rat, Dipodomys microps, is thought to specialize on the desert shrub Atriplex confertifolia. Because of this close relationship, D. microps was presumed to have tracked the shrub as its distribution shifted south during...