We quantified the repeatability of >900 individual measures of hind foot length from 2 French populations of roe deer (Capreolus capreolus) monitored by capture–recapture. We found a high repeatability (i.e., high intra-class correlation, 0.76, 95% CI = 0.72–0.83 and 0.92, 95% CI = 0.91–0.95) in both populations. We also found that inexperienced observers reached a high level of intra- (1.00, 95% CI = 0.96–1.00) and inter-observer repeatability (0.99, 95% CI = 0.98–1.00) when measuring hind foot length of harvested animals with a tool specifically designed for this task. Managers should pay particular attention to limit measurement errors because unreliable measurements require an increased sample size to assess individual variation and can mask biological patterns.
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1 August 2010
Testing Reliability of Body Size Measurements Using Hind Foot Length in Roe Deer
Mathieu Garel,
Jean-Michel Gaillard,
Thierry Chevrier,
Jacques Michallet,
Daniel Delorme,
Guy van Laere
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Journal of Wildlife Management
Vol. 74 • No. 6
August 2010
Vol. 74 • No. 6
August 2010
Capreolus capreolus
hind foot length
intra-class correlation
observer reliability
repeatability
reproducibility
