Restricted-range species

Definition

Species with a geographically restricted area of distribution.

Note: Within the International Finance Corporation's Performance Standard 6, restricted range is defined for terrestrial vertebrates as an  extent of occurrence (EOO) of 50,000km2 or less, and for marine species as an EOO of 100,000km2 or less.

Adapted from International Finance Corporation (IFC) 2012 1

Species with world distributions of less than 50,000km2.

Note: BirdLife International use this criteria in the context of Endemic Bird Areas.

Adapted from BirdLife International 2008 2