June 14, 2022 In Conservation 101
A keystone species is an animal whose actions shape its ecosystem to the benefit of other species too. Without its keystone species, an ecosystem might not survive. Examples include:
- The beaver, above, which builds dams that create wetlands.
- The prairie dog, whose vast networks of burrows provide habitat for other animals also.
- The wolf, which keeps deer and elk populations in check, which in turn prevents overgrazing of woodlands.