Species with highly specialized diets are at higher risk because:
“They depend on a single or few resources” for species with highly specialized diets are at higher risk because. 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—“They consume many fo
Ref: Conservation Biology, Primack & Sher, 6th Ed., Ch. 7