Habitat preference of Capito hypoleucus, an endemic and endangered Colombian bird
Habitat preference of Capito hypoleucus, an endemic and endangered Colombian bird
DOI:
https://doi.org/10.59517/oc.e54Keywords:
Capito hypoleucus, Colombia, endemic species, habitat preference, Serranía de las QuinchasAbstract
We evaluated habitat preference of the White-backed Barbet Capito hypoleucus using population density as an indicator. We followed a hierarchical method based on different spatial scales of response, using data obtained in the Serranía de las Quinchas, a small range of mountains in the Magdalena Valley of Colombia, and complemented with records of the species over its entire geographical distribution. We measured species abundance at the highest part and at the foothills of the Serranía. At each altitude we compared densities in the primary forest versus secondary forest, looking for relationships with floristic and structural characteristics of the vegetation. We found that the Barbet prefers primary forest above 1000 m. Epiphyte incidence was the variable related most strongly to barbet density. This pattern could reflect a direct relationship with epiphytes due to their food offerings, or an indirect relationship with several variables not measured in this study, notably cloud cover. Within the genus Capito the closest relatives to C. hypoleucus share this montane forest preference with high levels of epiphytism, while species belonging to other clades prefer lowland forests.
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