Viridian Dacnis Dacnis viguieri

  • Order: Passeriformes
  • Family: Thraupidae
  • Monotypic
  • Authors: Morgan Reed, Casey H. Richart, and Kevin J. Burns
Sections

Conservation

Conservation Status

Viridian Dacnis has a relatively small geographic range (6369 km2), within which it has lost more than 55% of its historical habitat (Renjifo et al. 2002). It is categorized as Near Threatened by the IUCN due to its small range, with relatively few known localities, and due to its general scarcity, as well as loss of habitat within this range (Renjifo et al. 2002, BirdLife International 2016). Viridian Dacnis is reported in the AICA (Area Important for Conservation of Aves) in Capurganá and in the PNN (Natural National Park) Katíos (Renjifo et al. 2002). The population size for this bird is unknown but it is considered rare; indeed, it was not reported at all for 64 years after its initial discovery (Hellmayr 1938, Meyer de Schauensee 1941). Parker et al. (1996) listed the priority level for the conservation of this species as medium, but this could increase if further research quantifies population declines. In 1972 the establishment of the National Parks and Reserves system initiated the protection of the forest Alto Darien (ANAM 2006). There are now 65 declared protected areas in Panama, of which 21.5% have adopted shared management. Shared management of protected areas in Central America policies support greater participation of society in civil protection and sustainable management of the natural resources (ANAM 2006).

Effects of human activity on populations

The decline in the population of Viridian Dacnis is thought to be correlated with habitat loss. Los Katios National Park, although protected, is threatened by land conversion for banana and cocaine plantations, as well as ecotourism (Wege 1996, Renjifo et al. 2002). Most habitat in the Urabá lowlands and the Sinú Valley already has been converted to banana plantations, cattle ranches, and palm oil plantations (Fundación ProAves 2011). This habitat conversion is encroaching on the foothills of the Western Andes and the Serranía de Darien. Another serious threat to the protected national parks is the proposal for an extension of the Pan-American Highway, which would run through Darién, to link Panama and Chocó (Wege 1996). Viridian Dacnis is considered to have a "medium" degree of sensitivity to human disturbance relative to other Neotropical birds (Parker et al. 1996). Perhaps ecotourism and the draw of the rare and beautiful Viridian Dacnis may generate funds to help protect remaining forests. The Viridian Dacnis is known from: Darien National Park, Panama, as well as Los Katios National Park, Colombia, both of which are adjacent (and at least nominally) protected areas. Darien National Park has also been designated a Biosphere Reserve and World Heritage Site (Wege 1996).

Recommended Citation

Reed, M., C. H. Richart, and K. J. Burns (2017). Viridian Dacnis (Dacnis viguieri), version 1.0. In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/nb.virdac1.01