title: Components of diversity.
abstract: The information theory measure H'=-∑[pilog pi] is partitioned into components to allow evaluation of various contributions to total divesity. If, a species collection is sampled at several microhabitats within each of several sites, we may ask whether the niche breadth of a particular species, and the diversity of the entire collection, are greater with respect to microhabitats or sites. The usefulness of these measures is discussed in the context of within-habitat and between-habitat contribution, to diversity.
authors.affiliation: Department of Zoology, University of Maryland, 20742, College Park, Maryland.
authors.forename: J David
authors.initials: JD
authors.lastname: Allan