Bison (IMAGE) Northern Illinois University Caption The new study found that, when restoring habitat, the effects of management strategies on animal communities were six times stronger on average than the effects of plant biodiversity. One such management strategy in prairie restoration is the reintroduction of bison, seen here at Nachusa Grasslands. Credit Holly Jones, Northern Illinois University Usage Restrictions Please credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.