Which concept describes positive feedbacks between biotic and abiotic factors driving extinction?
“Extinction vortex” for which concept describes positive feedbacks between biotic and abiotic factors driving extinction. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Extinction risk rises when abundance, geographic range, or genetic variation becomes small because demographic chance, environmental fluctuations, inbreeding, and rare catastrophes then have disproportionate effects. Correlated losses among subpopulations further weaken regional persistence. The remaining alternatives—“Habitat fra
Ref: Conservation Biology, Primack & Sher, 6th Ed., Ch. 7