The Importance of Beavers in Stream and Riparian Processes:  Opportunities for Restoring Watershed Functions
Presentation: 2013 Sustaining Colorado Watersheds Conference 

Beaver-mediated streams confer a suite of functions that differ from simple single-thread channels including enhanced floodplain connectivity, support of riverine wetlands, flood attenuation, base flow maintenance, and complex habitat. Restoring beaver-mediated streams offers greater benefits for watershed functioning than stabilizing simple single-thread channel systems.

Beaver Restoration on Thirtynine Mile Mountain: An experiment in restoring wetland and watershed functions on headwaters streams in the Upper South Platte 

This report is a feasibility study and a restoration plan for using beavers to restore wetland in a small remote watershed in South Park.  It includes a monitoring plan to track the effectiveness of restoration and study design to quantify changes in specific hydrologic and habitat functions. 

Beaver-mediated Anastomosed Streams: Classified

Presentation: 2014 River Restoration Northwest Conference

Beaver-mediated anastomosed streams once dominated the landscape on most low order watersheds in the West, and they are still common in areas that have not been physically transformed, and yet modern stream classification systems make no mention them. In this presentation we explain how the streams perfectly fit stage 0 in Cluer and Thorne's new Stream Evolution Model and we propose that a new DB stream class be added to the Rosgen classification system so that practitioners of natural channel design can stop overlooking beaver-mediated anastomosed streams as reference systems. 

beaver-mediated streams

Beaver Restoration Guidebook

Mark is a contribuiting author to the recently released Beaver Restoration Guidebook  The Guidebook was prepared by authors with the US Fish and Wildlife Service, National Oceanic and Atmospheric Administration, Portland State University and US Forest Service. 

Free copies are available at or by clicking the image.

Click image to open the report

Floodplain Connectivity and Riverine Wetlands: Appreciating the Role of Beavers
Presentation: 2014 Society of Wetland Scientists, Rocky Mountain Chapter Annual Meeting 

Stage 0, DB Beaver-mediated anastomosed streams support wetlands because they are so intimately connected to floodplains. The widespread conversion of these streams to simpler single-channel (stage 2-6, C, E, F, and G) stream types following settlement of the West is the cause of enormous amounts of riverine wetland loss.  Restoring floodplain-connected beaver-mediated streams is a good way to restore lost wetland acreage.

beaver-mediated streams