Multicolored Tanager Chlorochrysa nitidissima

Sections

Demography and Populations

Due to the restricted range and conservation concern of the Multicolored Tanager, the abundance of this species has been fairly well characterized. The consensus is that they are relatively uncommon compared to other Neotropical tanagers, with a center of abundance in the upper tropical zone (Parker et al. 1996, Renjifo 1999, Arbeláez-Cortes et al. 2007, Arbeláez-Cortes et al. 2011, Morales-Zuñinga 2012, Fierro-Calderón and Johnston-González 2014). This species is restricted to the sub-Andean forests of both slopes of the West and Central Andes where they are apparently most abundant on the eastern slope of the West Andes and least abundant on the eastern slope of the Central Andes, commensurate with the extent of the mature humid forests they require (Mendoza 2007, Fierro-Calderón and Johnston-González 2014). They can be locally fairly common (Sander 2005, Cuervo et al. 2008a). At the southern extent of its Central Andes distribution populations estimates have ranged as low as 0.123 individuals per hectare (ind/ha) with an estimated 182 individuals within the Área Importante para la Conservación de las Aves (AICA) Barbas-Bremen (Marín-Gómez et al. 2009). However, at the same reserve populations have been estimated at 1.86 ind/ha, about 1.3-2.05 ind/ha with a 95% confidence interval of 1.05-3.27 ind/ha (Gómez-Hoyos et al. 2018). Other population estimates include 0.15 ind/ha (Cárdenas et al. 2008) and 0.13 ind/ha (Fierro-Calderon et al. 2009). Within populations, individuals tend to be more abundant in mature (2.05 ind/ha) rather than secondary (0.79 ind/ha) forests (Gómez-Hoyos et al. 2018). The generation time has been estimated at 3.67 years (Renjifo et al. 2014). We were not able to find information on the age at first breeding, survivorship, parasitism or other population regulation mechanisms.

Recommended Citation

Multicolored Tanager (Chlorochrysa nitidissima), In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. retrieved from Neotropical Birds Online: https://neotropical.birds.cornell.edu/Species-Account/nb/species/multan1