Nature’s Balancing Act in YellowstoneSep 13th, 2013 • Category: Science & the Environment
By ELEANOR HEDGES-DUROY, age 10
According to a study published in the Journal of Animal Ecology, the population of elk in northern Yellowstone National Park has decreased since gray wolves were reintroduced. This caused grizzly bear populations to increase because elk and bears eat the same berries. The study shows that lives in ecosystems are connected and how one change affects the entire system.
What new ideas does the article discuss? What did you learn that you did not know before? Why is this article interesting? How does this article make you feel? REMINDER: Please use complete sentences to clarify your ideas!