Kyle Joly 2000 <p>Low sample size and high variation within populations reduce power of statistical tests. These aspects of statistical power appear to have affected an analysis comparing overwinter survival rates of non-orphan and orphan Caribou (<i>Rangifer tarandus</i>) calves by an earlier study for the Porcupine Caribou Herd. A re-evaluation of the data revealed that conclusions about a lack of significant difference in the overwinter survival rates between orphan and non-orphan calves were premature.</p> application/pdf en Ottawa Field-Naturalists' Club Orphan caribou, <i>Rangifer tarandus</i>, calves: A re-evaluation of overwinter survival data article