On the absence of the Green-tailed Trainbearer Lesbianuna (Trochilidae) from Venezuela: an analysis based on environmental niche modelling

摘要

BackgroundLesbia nuna, a hummingbird distributed in the tropical Andes, has been included in Venezuela's bird list on the basis of a specimen collected in 1873 at Sierra Nevada, Mérida and deposited in the Natural History Museum, London, with no further records for this country since then. This record, largely considered as valid by most authors, has been questioned by others, although without formal analyses.