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1km resolution rasters of grizzly bear skull length (mm) Van Elslander, Jonathan; Mowat, Garth; Bourbonnais, Mathieu

Description

Maps of grizzly bear skull size developed based on the data in the British Columbia's Compulsory Inspection database (url: https://catalogue.data.gov.bc.ca/dataset/45711667-7878-4d86-8b5e-d0be5997dd16). NAD83/BC Albers projectiong (EPSG: 3005). 1km resolution. We considered the skull length (in millimetres) of all male bears in the database over the age of seven (n = 3451) and female bears above the age of 5 (n = 5871), ages by which they are thought to have reached their full size (Mowat and Heard 2006, doi.org/10.1139/z06-016). Using these data, we generated predicted maps of male and female skull size for the province by interpolating measured skull length using a simple kriging process based on a Gaussian variogram model with the R package gstat (Pebesma 2004, doi.org/10.1016/j.cageo.2004.03.012), generating a raster with 1km resolution.

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Title	1km resolution rasters of grizzly bear skull length (mm)
Creator	Van Elslander, Jonathan; Mowat, Garth; Bourbonnais, Mathieu
Contributor	Van Elslander, Jonathan
Date Issued	2025-09-18
Description	Maps of grizzly bear skull size developed based on the data in the British Columbia's Compulsory Inspection database (url: https://catalogue.data.gov.bc.ca/dataset/45711667-7878-4d86-8b5e-d0be5997dd16). NAD83/BC Albers projectiong (EPSG: 3005). 1km resolution. We considered the skull length (in millimetres) of all male bears in the database over the age of seven (n = 3451) and female bears above the age of 5 (n = 5871), ages by which they are thought to have reached their full size (Mowat and Heard 2006, doi.org/10.1139/z06-016). Using these data, we generated predicted maps of male and female skull size for the province by interpolating measured skull length using a simple kriging process based on a Gaussian variogram model with the R package gstat (Pebesma 2004, doi.org/10.1016/j.cageo.2004.03.012), generating a raster with 1km resolution.
Subject	Earth and Environmental Sciences; Medicine, Health and Life Sciences; Grizzly Bear; Ursus arctos; Landscape ecology; Wildlife; skull size
Geographic Location	British Columbia
Type	Dataset
Date Available	2025-09-10
Provider	University of British Columbia Library
License	CC BY-NC 4.0
DOI	10.14288/1.0450163
URI	https://doi.org/10.5683/SP3/RXSHWQ
Publisher DOI	https://doi.org/10.5683/SP3/RXSHWQ
Rights URI	http://creativecommons.org/licenses/by-nc/4.0
Country	Canada
Aggregated Source Repository	Dataverse

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CC BY-NC 4.0