What evolutionary scenario is suggested by the rapid increase in O. virginianus density since the mid-20th century?

Density-dependent selection favoring rapid maturation rates

The significant population rebound of white-tailed deer beginning in the mid-20th century, facilitated by conservation efforts and favorable land use changes, initiated a new phase of evolutionary pressure known as density-dependent selection. In areas characterized by incredibly high deer density, the selective focus shifts toward traits beneficial for coping with crowding. This includes favoring individuals that exhibit rapid maturation rates, higher reproductive output, and potentially modified social behaviors necessary to manage proximity to conspecifics. This environment is actively selecting for traits that maximize individual success within a crowded population structure.