#species status

A species with

IUCN small population criteria assess extinction vulnerability due to demographic stochasticity. Criterion C requires fewer than 250 mature individuals for CR, 2500 for EN, 10,000 for VU combined with continuing decline and specific subpopulation structure such as 90% in one subpopulation. Criterion D addresses very small populations without decline —

Ref: IUCN Criterion C and D Small Population Thresholds; Wildlife Institute of India Red List Training Material