Tateyama Range Heshan Hilly Land Interdisciplinary Experimental Station Tsundashi Pass Muraviovka Park Otayama Bird-Observatory (1973) Otayama Bird-Observatory (1974) Otayama Bird-Observatory (1975) Otayama Bird-Observatory (1976) Otayama Bird-Observatory (1977) Baikka Beel (March 2011) Baikka Beel (December 2011) Baikka Beel (February 2013) Pashua Haor (February 2012) Tanguar (February 2012) Tanguar (March 2013) Bistraya River The Ecological Register
global
North America
United States
South America/Africa
Europe
Eurasia
Africa/Australasia
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Calliope (bird): 16 samples
Standardised estimates are produced by subsampling and then extrapolating.
Raw richness may be higher when an abundance distribution is uneven.