Most endangered species are victims of
The principle of evolutionary adaptation explains that selection and population dynamics shape traits. Hence habitat destruction. fits best because it explains adaptive diversity, as documented in authoritative sources on ecology and evolution.
Ref: Begon, Townsend and Harper, Ecology: From Individuals to Ecosystems, 4th Edition, Chapter 5, Population Ecology, discusses population dynamics, competition, predation and community interactions explaining ecological stability, ecosystem processes and biodiversity conservation relevant to environment
