Snow (1962) estimated that the density of White-bearded Manakins was 500 birds in 450 acres of forest in Trinidad, although the population on the mainland is significantly less dense. Ten years later, the Trinidad populations were estimated to have reduced by 20% due to destruction of habitat (Lill 1974). Mainland population estimates are significantly lower than these Trinidad population estimates (Olson and McDowell 1983).
Females will breed as yearlings, whereas males will not reach adult plumage until their second year and do not begin lekking until their second year (Snow 1962).
The lifespan for White-bearded Manakins ranges from 7-14 years, with 14 years being an average lifespan for males (Snow 1962, Snow 1974). Snow recorded an annual survival rate of 89% in male White-bearded Manakins, and although the recording of female survival rates was not possible, Snow recorded that data gathered while trapping indicated high rates of female survival as well (Snow 1962).