GBTools

Powerful GIS tools and long-term data about grizzly bears in Alberta.

Within a decade of beginning work, the Grizzly Bear Program had fitted GPS collars on bears to understand their home ranges and resource use, collected reams of habitat data, and conducted the first scientific population inventories in the province.

The habitat measurements and grizzly bear location data were each used to answer many research questions, but in 2007 they were integrated to form the basis of GBTools. This was a suite of GIS tools, backed by our published research, that allowed land managers to input resource development or restoration scenarios, and see the expected impact on grizzly bear populations. Every few years we rolled out updates to add new tools to the package and expand their geographic scope. Today, they can simulate habitat quality, bear mortality risk, probability of den locations, and sightability from roads. The government requires the use of these tools in forest management plans, so ensuring that they remain up to date and bug-free is an important job for our grizzly bear and GIS team. We have also supported their use by publishing tutorials, giving workshops, and troubleshooting as needed.

The other part of the tools is the provincial genetic database of all sequenced grizzly bears in Alberta, a priceless trove of data that includes both the thousands of samples we collected, but also hair samples from other agencies. Unlike many things in life that see diminishing returns as they grow, each additional bear identification added to this database can be more valuable than the last because it creates more connections. Maybe it shares half its DNA with a previously detected bear, allowing us to establish a parent-cub relationship that confirms reproduction, or maybe it’s the same bear as we detected many years ago, giving us survival and age structure data. This is a unique resource that we work hard to keep up to date and accessible to our partners so they can leverage their past investments in our program to answer new questions.

2004
First Genetic Samples

The team begins building a library of bears identified by genetic sampling.

2005
GIS Development Begins

Using data collected since 1998, biologists and GIS specialists begin creating a suite of GIS Tools for ArcGIS Desktop

2007
Version 1 Released

Tools can simulate the effects of development and restoration on grizzly bear mortality risk and resource selection functions.

2010
Major Update

Safe Harbour tool added.

2011
Major Update

Habitat States tool added.

2012
Major Update

Caribou RSF, road reclamation, and sightability tools added.

2015
Major Update

Denning tool added.

2016
Major Update

Road density tool added.

2018
Creating a Genetic Database

The library of genetic information that we have been building since 2004 is transformed into a queryable database of all identified bears in Alberta.

2018
Major Update

Area plots and change detection tools added.

2024
Major Update

Platform transitions to ArcGIS Pro.

grizzly bear
Videos | Audio-Visual
GBTools are a suite of GIS models for investigating the current status, and impact of changes on the landscape. Since […]
Studying Grizzly Bears in Alberta
Interactive StoryMaps | GIS Products
Over two decades of data, tools, and knowledge.
GIS Products | Tools and Apps
Geoprocessing tool developed by fRI for Grizzly Bear research
Terry Larsen, Gord Stenhouse, and Karen Graham with their 2025 ASTech Award in Calgary
Announcement
Gord Stenhouse, Karen Graham, and Terry Larsen won in the environment and ecosystems category on November 7, 2025.
See How Road Densities Are Changing in Grizzly Bear Habitat
Blog
A feature of the GBTools GIS Product makes it easy to see which watersheds have high road densities, and how that has changed.
Grizzly Bear Habitat Time Series
Blog
Dan Wismer describes and visualizes 18 years of grizzly bear habitat change.
Habitat States Now Supports Harvest Sequence Input
Blog
Dan Wismer describes an update to the Grizzly Bear Tools.
Habitat States Change Detection Tool
Blog
The tool for Habitat States, a metric that combines habitat quality and risk for grizzly bears, is getting an upgrade.
Blog
Update on GBtools from the fRI Research GIS program
Gord Stenhouse
Gord Stenhouse
Program Lead
Dr. Dario Fernandez-Bellon
Dr. Darío Fernández-Bellon
Program Lead
cam mcclelland (top)
Cameron McClelland
Senior Biologist
karen graham
Karen Graham
Biologist
Julie Duval
Julie Duval
Manager
Dan Wismer
Dan Wismer
GIS Analyst
heather daw
Heather Daw
GIS Analyst
Tanya Muswera
Tanya Muswera
GIS Analyst
Karine Pigeon
Karine Pigeon
Wildlife Biologist
dr scott nielsen
Scott Nielsen
Associate Professor, Alberta Biodiversity Conservation Chair
Joshua Crough
Joshua Crough
Jerome Cranston
GIS Analyst