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Project Goals

The primary goal of this project was to provide North Fork John Day Watershed Council with spatially explicit drainage network maps of the basin that helps them better manage existing beaver populations and capitalize on opportunities for beaver to act as a restoration agent, while recognizing the potential impacts of nuisance beaver in particular areas. We believe the spatially explicit outputs from BRAT will provide North Fork John Day Watershed Council staff with the information needed to effectively identify where nuisance beaver can be relocated, where ‘Living with Beaver’ strategies may be needed and where beaver can be used for watershed restoration efforts to have the greatest potential to yield increases in biodiversity and ecosystem services.
Further information concerning the scope of this project can be found on the BRAT website for the John Day Brat folder.

Customizations for this project

Under this contract we reframed how the BRAT model assesses risk and opportunity for using beaver in conservation and restoration. The outputs identify streams that are: low-risk with restoration and conservation opportunities, moderate or high risk where beavers can build dams and; natural or anthropogenically limited areas where beaver cannot build dams now. Specifically, the three beaver management layers/maps are: 1) ‘unsuitable or limited beaver dam building opportunities’, 2) ‘areas beavers can build dams, but could be  undesirable’, and 3) ‘possible beaver dam conservation or restoration opportunities.’

John Day Basin BRAT Deliverable Data Products include:

• KMZ files of the four primary BRAT outputs (existing dam capacity, historic dam capacity, human-beaver potential conflict and beaver conservation and restoration zones) 
• Shapefiles for the four primary outputs and standard inputs
• Layer packages that identify the inputs, intermediates, and outputs
• Atlas of BRAT outputs

back to brat 2018-2019

More detailed info at brat.riverscapes.xyz