Editing Convex hull (section)

===Ethology===
The convex hull is commonly known as the minimum convex polygon in [[ethology]], the study of animal behavior, where it is a classic, though perhaps simplistic, approach in estimating an animal's [[home range]] based on points where the animal has been observed.<ref>{{harvtxt|Kernohan|Gitzen|Millspaugh|2001}}, p. 137–140; {{harvtxt|Nilsen|Pedersen|Linnell|2008}}</ref> [[Outlier]]s can make the minimum convex polygon excessively large, which has motivated relaxed approaches that contain only a subset of the observations, for instance by choosing one of the convex layers that is close to a target percentage of the samples,{{sfnp|Worton|1995}} or in the [[local convex hull]] method by combining convex hulls of [[k-nearest neighbors algorithm|neighborhoods]] of points.{{sfnp|Getz|Wilmers|2004}}