Does Size Matter? Animal Units and Animal Unit Months

摘要

The concepts of animal unit (AU) and animal unit month (AUM) have been in general use in the range management profession for over a century, and definitions approved by Society for Range Management (SRM) in the glossary since 1974. In recent years, questions have been raised as to whether the definitions need to be revised. The purpose of this article is to examine the question of revisions.