3. Using your knowledge of community ecology, list any species interactions taking place
as well as determine if any of the species play specific roles in this community:
In 1988, researchers set up a series of 50-meter × 50-meter enclosures to investigate the
effect of kangaroo rats, *Dipodomys* sp., on smaller seed-eating rodents, *Reithrodontomys*
sp. The kangaroo rats and the smaller rodents compete for seeds from dessert grasses. They
both prefer the smaller-seeded varieties of plants, but will not eat the same size of seeds if
they are inhabiting the same area.