Minimum Critical Size of Ecosystems Project (contiguous forest) Minimum Critical Size of Ecosystems Project (1 ha forest fragment) Minimum Critical Size of Ecosystems Project (10 ha forest fragment) The Ecological Register
global
North America
United States
South America/Africa
Europe
Eurasia
Africa/Australasia
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Ateuchus frontalis (scarab beetle): 3 samples
Standardised estimates are produced by subsampling and then extrapolating.
Raw richness may be higher when an abundance distribution is uneven.