NatureServe's seminal paper on conservation ranking methodology. The purpose of this comment is to discuss and to compare briefly some systems for prioritizing species for conservation attention. This comment is written in response to a proposed new International Union for the Conservation of Nature and Natural Respurces (IUCN) hierarchical categorization, described in Conservation Biology by Mace and Lande (1991), and based on a species' probability of extintion.
- Master LL. 1991. Assessing threats and setting priorities for conservation. Conservation Biology 5:559–563.