El Viso Piémanson Beach Certak Hohenau-Ringelsdorf Portalban (Wald) Mata Nacional do Choupal Portland Bird Observatory Lake Turpanie The Ecological Register
global
North America
United States
South America/Africa
Europe
Eurasia
Africa/Australasia
•
•
•
•
•
•
•
•
Locustella naevia (bird): 8 samples
Standardised estimates are produced by subsampling and then extrapolating.
Raw richness may be higher when an abundance distribution is uneven.