Luis A. Coloma, Santiago Ron, Mario Yánez-Muñoz, Diego Cisneros-Heredia, Ana Almendáriz
Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson, Neil Cox and Bruce Young)
Listed as Near Threatened because this species is probably in significant decline (but probably at a rate of less than 30% over ten years) because of widespread habitat loss through much of its range, thus making the species close to qualifying for Vulnerable.
This species is known from more than ten localities in the Pacific lowlands of Ecuador in the provinces of El Oro, Los Ríos, Bolívar, Guayas, Azogues, and Manabí, from 10-515m asl (Parker and Carr 1992; Coloma 1995).
Benitez, M.S. and del Pino, E.M. 2003. La expresion de Brachyury en ranas con modos divergentes de desarrollo. The expression of Brachyury in frogs with different modes of development. Revista de la Pontificia Universidad Catolica del Ecuador: 7-14.
Coloma, L.A. 1995. Ecuadorian frogs of the genus Colostethus (Anura: Dendrobatidae). University of Kansas Natural History Museum Miscellaneous Publication 87: 1-72.
IUCN. 2004. 2004 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 23 November 2004.
Parker III, T.A. and Carr, J.L. 1992. Status of forest remnants in the Cordillera de la Costa and adjacent areas of southwestern Ecuador. RAP Working Papers: 1-172.