AOO

Ausgeschrieben: 
Area of Occupancy
Beschreibung: 
Area of occupancy is defined as the area within its ‘extent of occurrence’ which is occupied by a taxon, excluding cases of vagrancy. The measure reflects the fact that a taxon will not usually occur throughout the area of its extent of occurrence, which may, for example, contain unsuitable habitats. The area of occupancy is the smallest area essential at any stage to the survival of existing populations of a taxon (e.g. colonial nesting sites, feeding sites for migratory taxa). The size of the area of occupancy will be a function of the scale at which it is measured, and should be at a scale appropriate to relevant biological aspects of the taxon.
URL: 
http://www.iucnredlist.org/static/categories_criteria_3_1
Übersetzung: 
Besetzungsgebiet
Dachorganisation: 
IUCN