Wolves Change GeographyFebruary 15, 2014 at 4:08 pm | Posted in Media, Nature, Science | Leave a comment
A short film about “trophic cascade“- the cascading consequences of changes in individual species populations – especially of top-of-the-pyramid predators.
After 70 years absence, wolves were reintroduced into Yellowstone National Park in the United States. They restored balance to grazing populations. This created a cascading effect that allowed the natural restoration of plant life, improvements in bear and rodent populations, and better river flows. Wolves changed the geography.