The conservation status of the Yellow-bellied Dacnis (Dacnis flaviventer) has been listed by IUCN Red List as Least Concern (BirdLife International 2017). It received this categorization due to its large estimated range, about 4,100,000 km2, and, although population size has not been quantified, it has been described as fairly common and there is no evidence of population declines or major threats. Parker et al. (1996) considered this species of "low" conservation priority relative to other Neotropical birds.
Effects of human activity on populations
Parker et al. (1996) considered White-bellied Dacnis to have a "medium" degree of sensitivity to human disturbance relative to other Neotropical birds. Surveys along the southern Amazon "Arc of Deforestation" have found that the Yellow-bellied Dacnis shows some dependence on primary forests (Lees and Peres 2006), despite having been recorded from forest fragments, secondary forests, clearings near forests, landscaped, and cultivated areas (Johns 1991, Robbins et al. 1991, Borges and Carvalhaes 2000, Whittaker 2009, Schunck et al. 2011).
Many birders flock to South America every year, and the beautiful Yellow-bellied Dacnis has the potential to attract ecotourists (Ortiz Salazar 2013). It is known from the following protected areas: Bolivia: Madidi National Park (Remsen and Parker 1995, Hosner et al. 2009), Noel Kempff Mercado National Park (Bates and Parker 1998), Pilón Lajas Biosphere Reserve (Hennessey et al. 2003); Brazil: Anavilhanas Ecological Station (Cintra et al. 2007), Jaú National Park (Borges and Carvalhaes 2000), Rio Unini Extractive Reserve (Borges and de Almeida 2011), Tapajós National Park (Oren and Parker 1997), Viruá National Park (Laranjeiras et al. 2014), Xixuaú Natural Reserve (Trolle and Walther 2004), Serra do Divisor, and Amazonica National Parks (Hilty 2011); Colombia: La Paya National Park, Amacayacu National Park (Hilty 2011); Ecuador: Cuyabeno Wildlife Reserve, Yasuni National Park (Hilty 2011); Peru: Allpahuayo-Mishana National Reserve (Alonso et al. 2012), Lago Preto Concession Conservation Area (Brace and Bodmer 2008), Manu Biosphere Reserve (Karr et al. 1990, Walker et al. 2006), Pacaya-Samiria National Reserve (Hilty 2011); Venezuela: Yapacan National Park (Hilty 2011).