Neothraupis fasciata has been described as "fairly common" with a center of abundance in the lower tropical zone (Parker et al. 1996, Silva et al. 1997). It has been characterized as one of the most abundant birds of the savannas of South America (Boss and da Silva 2015). There is little to no quantitative information about adult density and mortality, but survival appears to be high. The presence of helpers at nests reduces parental effort of feeding by the male, but does not effect the feeding effort of females (Manica and Marini 2011). The presence of helpers does increase total food delivery to the nest, but was not found to affect nest survival probability (Manica and Marini 2011). The life span of this species is not well understood, but marked species have been found in the same territories for at least four years (Alves 1990). Their high participation in mixed-species flocks may improve their defense against predation (Alves 1990). There is no information available on the age of first breeding. White-banded Tanager is a host for Shiny Cowbird (Molothrus bonariensis) in Brazil, and this pressure is expected to increase with continued habitat alterations in central Brazil that favor the cowbird (Cavalcanti and Pimentel 1988). In disturbed areas, 5 out of 6 (83.3%) White-banded Tanager nests were parasitized by Shiny Cowbird, and nest failure was higher in disturbed areas than in reserve areas (17 of 31 nests). Nest failure in disturbed areas was caused by predation, abandonment, fire, and removal of nestlings, whereas nest failures in reserve areas were solely due to predation (Borges and Marini 2009). White-banded Tanager is a known host for a species of intracellular parasitic protozoan in the genus Haemoproteus as well as an avian malaria parasite in the genus Plasmodium (Fecchio 2006).