Risher Pond (1969) Risher Pond (1970) Karen's Pond (1969) Karen's Pond (1970) The Ecological Register
global
North America
United States
South America/Africa
Europe
Eurasia
Africa/Australasia
•
•
•
•
Pseudacris nigrita (frog): 4 samples
Standardised estimates are produced by subsampling and then extrapolating.
Raw richness may be higher when an abundance distribution is uneven.