Review of research about the positive and negative effects of beaver towards fish

A review by the University of Southampton of how the reintroduction of beaver will affect fish in Scotalnd

This project explored the effectiveness of a management plan on improving streamflow and stream temperature

An analysis between the differences of beaver dams and artificial dams and their impacts on the wetlands they occupy

In-depth report on how beaver could provide benefits to local residents and visitors well into the millions of dollars per year in Utah.

Study of how beaver ponds make nearby vegetation more resilient towards wildfires

This study provides empirical evidence that beaver can influence hydrologic processes during the peak flow and low?flow periods on some streams, suggesting that beaver can create and maintain hydrologic regimes suitable for the formation and persistence of wetlands.

This study demonstrated that beavers actively increase the volume-to-surface area ratio of wetlands by almost 50% and that their digging of foraging channels increases average wetland perimeters by over 575%. They concluded that exclusion or removal of beavers could limit ecosystem processes and resilience.

The U.S. Dept. of the Interior, Bureau of Land Management blog reports that in arid, high country Oregon, a series of manmade beaver dams (Beaver Dam Analogs) have created a watery oasis.

This project investigated the effects of climate on multiple aspects of river hydrology, including the interaction with expanding beaver populations in the Northeast. Our findings suggest that beavers increase water retentions, and sometimes flooding, in rivers which increases nitrogen removal.

Impact of beavers regarding drought and wildfire in the Methow River Watershed