StoryMap
Interactive web map
Project Goals
The main goal of this project was to analyze all the perennial rivers and streams within Idaho and generate spatially explicit outputs to help local biologists 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. Further information concerning the scope of this project can be found on the BRAT website in the Idaho BRAT folder.
Customizations for this project
Idaho Fish & Game staff provided a detailed review of preliminary BRAT data and we incorporated their suggested changes into the model. This resulted in improvements to the risk, limiting factors, and restoration and conservation outputs. Under this contract we conducted an Idaho-wide beaver dam census based on 2013 0.5 meter NAIP imagery.
Idaho BRAT Deliverable Data Products include:
This project consisted of implementing BRAT for the entire state of Idaho. This included calibration, validation and refinement of the BRAT models based on feedback from Idaho Fish & Game staff.
Deliverable data products include:
- Developed and ran BRAT on the perennial portion of the 1:24K NHD network (60,484 miles) segmented at 300m including:
- Existing (based on 2016 LANDFIRE data, the most current data available) beaver dam capacity estimates (dams /km)
- Historic beaver dam capacity estimates(based on LANDFIRE BPS data (dams /km)
- Potential for human beaver conflict (probability)
- Refine conflict model. This resulted in a model that assesses risk and opportunity for using beaver in conservation and restoration.
- Beaver management, restoration and conservation predictions reflecting management priorities
- Calibrated and validated BRAT performance using harvest and nuisance trapping data, and
- Conducted a web map-based virtual inventory of existing beaver dams across the entire state of Idaho.
Deliverable data products include:
- KMZ of each of four primary BRAT outputs (existing capacity, historic capacity, risk, limiting factors, and conservation and restoration opportunities)
- Shapefiles and layer packages of each of four primary outputs (existing capacity, historic capacity, risk, limiting factors, and conservation and restoration opportunities)
- Posting of existing and historic beaver dam capacity output layers to public website
- Full interpretive report with management recommendations
- Idaho-wide virtual inventory of existing beaver dams as KMZ
- Atlas of BRAT outputs
