Keystone Species

. "Black-tailed prairie dogs modify vegetation, aerate soil, provide food and shelter for a number of predators, and provide homes for a number of parasites."(Source: Animal Diversity Web). <a href="http://eol.org/pages/311548/details#associations">Read more</a>

. The beaver's damn building activities influence riparian stream environments. <a href="http://eol.org/data_objects/28916569">Read more</a> about how the beaver acts as a keystone species.

. As a keystone species, the African Bush Elephant's physical activities have a significant impact on their environment. <a href="http://eol.org/data_objects/31403351"> Read more </a>

. Ochre Sea Stars are well studied keystone species in some inter-tidal ecosystems. <a href="http://eol.org/data_objects/10457773"> Read more</a>

. Grizzly Bears are known as keystone predators in the ecosystems they inhabit.