La Tour du Valat

Article

Altitudinal distribution, habitat use, and abundance of Grallaria antpittas in the Central Andes of Colombia

G. H. Kattan, Auteur ; J. W. Beltran, Auteur

Dans Bird Conservation International (19(3) SEP 2009)

Grallaria antpittas are a group of little known birds from the understorey of humid forests of the tropical Andes, with several species having very narrow distributions. At Ucumari Regional Park, which protects the Otun River watershed in the Ce[...]

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Article

Rarity in antpittas: territory size and population density of five Grallaria spp. in a regenerating habitat mosaic in the Andes of Colombia

G. H. Kattan, Auteur ; J. W. Beltran, Auteur

Dans Bird Conservation International (12(3) SEP 2002)

Between 1995 and 2000, we made a comparative study of ranging patterns of individuals of five sympatric species of antpitta Grallaria spp. that differ in body size and extent of geographical range. Grallaria milleri is restricted to a small area[...]

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