Scientists Found That Beavers Benefit Rivers

14.07.2016

University of Utah Specialists (USA) decided to test the ecosystem impact of the rivers which actually have a dam built by beavers. It turned out that thanks to these animals the endangered fish populations can recover and the volume of flow increases.

Scientists Found That Beavers Benefit Rivers

During the experiment, seven years ago on John Day River in Oregon there were constructed artificial dams made of wooden poles and willow. Since then, beavers have mastered a proposed dam and have started to build more durable natural dam. As a result, the water level of the whole river rose, while the number of rainbow trout habitat and the size of its population increased significantly.

The study's authors believe that this method of rivers recovery is the most economical and safe for the environment. These results disprove the theory that the beavers are damaging reservoirs, leading to the death of fish and siltation.