Abstract
First documented record of Amazilia tzacatl (de la Llave, 1893) (Aves, Trochilidae) in the Colombian Orinoco region and comments of its distribution at the eastern Andes
Highlights
Land use and land cover change have important impacts on the biodiversity sustainability, and even it can be one of the drivers for tropical speciation (Smith et al 2014)
We present the first documented record of the Rufous-tailed Hummingbird, Amazilia tzacatl, for the eastern slope of the Andes-Orinoco region of Colombia
We discuss recent observations in the eastern Andes. These records could be associated with land use change and deforestation fronts through the Andes
Summary
Land use and land cover change have important impacts on the biodiversity sustainability, and even it can be one of the drivers for tropical speciation (Smith et al 2014). Studies have shown that the dynamic of changes in land use can drive either local extinction process or colonization by generalist species (Renjifo 1999, Stiles et al 1999). Renjifo (1999) documented the loss of biodiversity (i.e. extinction of large body size birds) in the Central Andes of Colombia after long-term fragmentation process. Stiles et al (1999) showed the colonization of open areas by generalist bird species (e.g. Sicalis flaveola (Linnaeus 1766), Sporophila crassirostris (J.F. Gmelin 1789), Icterus nigrogularis (Hahn 1819)) in the deforested Middle Magdalena Valley in Colombia. The above examples evidence some of the general patterns in these demographic processes, such as local extinction or colonization, many poorly known sites could be experiencing those dynamics without any documentation. We present the first documented record of a generalist hummingbird for a region that has experienced
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