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Related Experiment Video

Updated: Jul 13, 2026

Protocol for Assessing the Relative Effects of Environment and Genetics on Antler and Body Growth for a Long-lived Cervid

Protocol for Assessing the Relative Effects of Environment and Genetics on Antler and Body Growth for a Long-lived Cervid

Published on: August 8, 2017

Grizzly bear habitat selection is scale dependent.

Lana M Ciarniello¹, Mark S Boyce, Dale R Seip

¹Department of Biological Sciences, University of Alberta, Edmonton, Alberta T6G 2E9, Canada. aklak@telus.net

Ecological Applications : a Publication of the Ecological Society of America

|August 22, 2007

Summary

Grizzly bear habitat selection varies significantly with the scale of observation. Understanding these scale-dependent patterns is crucial for effective wildlife management and conservation strategies.

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Last Updated: Jul 13, 2026

Protocol for Assessing the Relative Effects of Environment and Genetics on Antler and Body Growth for a Long-lived Cervid

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Published on: August 8, 2017

Modeling the Size Spectrum for Macroinvertebrates and Fishes in Stream Ecosystems

Modeling the Size Spectrum for Macroinvertebrates and Fishes in Stream Ecosystems

Published on: July 30, 2019

Area of Science:

Ecology
Wildlife Biology
Conservation Science

Background:

Ecological studies often overlook the impact of observational scale on interpreting animal habitat selection.
Grizzly bear (Ursus arctos) habitat use is complex and may vary based on spatial and temporal factors.

Purpose of the Study:

To investigate how different observational scales influence the interpretation of grizzly bear habitat selection.
To determine the most effective scales for addressing management questions related to grizzly bear conservation.

Main Methods:

Utilized resource selection functions (RSF) to analyze habitat selection across three spatial extents: study area, home range, and movement buffers.
Employed Akaike Information Criteria (AIC) for model selection and compared model coefficient variations across scales for both male and female grizzly bears in mountain and plateau landscapes.

Main Results:

Habitat selection interpretation for grizzly bears was scale-dependent, particularly for males, with different models ranking highest at various scales.
Female bear habitat selection was consistently predicted by models including a full suite of covariates, irrespective of scale.
Male grizzly bears exhibited varied selection patterns; mountain males favored terrain features at finer scales, while plateau males selected areas with higher human-related mortality risk. Greenness was a key predictor for females and mountain males.

Conclusions:

Grizzly bear habitat selection is significantly influenced by the scale of analysis, affecting ecological interpretations and management strategies.
Resource availability and landscape characteristics interact with scale to shape habitat preferences.
Effective conservation and management require a hierarchical approach that acknowledges scale-dependent habitat selection patterns in grizzly bears.