Cooler Streams for Fish
Researchers investigated the hydro-dynamics of a stream segment before and after beaver moved into a system and discovered a substantial reduction in peak flow (shown in the figure above as "centralized flow"). The red lines show flow energy dampening due to beaver ponds. What does this mean to land managers, landowners and emergency response personnel ? Streams that have ACTIVE beaver colonies are less likely to have peak flood damage. Law, McLean and Willby, "Habitat engineering by beaver benefits aquatic biodiversity" Biodiversity (2006)
Reduced Peak Flood Damage
As the picture above shows, the temperature in the beaver ponds is much cooler than the surrounding stream. What does this mean? Better habitat for trout and less evaporation. Conversely, in the winter, the ponds are warmer. Our native cutthroat trout can thus survive the cold winters. (Courtesy, USU)
Why are beaver important?