Palm Tanager (Thraupis palmarum) Science Article 1 abstract The objective of this study was to investigate feather mites on birds of the Family Emberizidae, tocollect data on the ecological ectoparasite-host relationship and infestation level. A sum of 94 birds of 9 specieswas captured at the Refugio Ecologico Charles Darwin, Igarassu, Pernambuco, Brazil, from August 1996 […]
Category: Passeriformes
SUGAR-TASTING ABILITY AND FRUIT SELECTION IN TROPICAL FRUIT-EATING BIRDS
Palm Tanager (Thraupis palmarum) Science Article 2 abstract The sugar-tasting abilities of four species of tanagers and two species of manakins were tested. Three tanager species were able to detect differences in diets containing 8%, 10%, and 12% sugar. In pairwise choice trials, they preferred the diet highest in sugar. Neither species of manakin discriminated […]
SUGAR-TASTING ABILITY AND FRUIT SELECTION IN TROPICAL FRUIT-EATING BIRDS
Palm Tanager (Thraupis palmarum) Science Article 2 abstract The sugar-tasting abilities of four species of tanagers and two species of manakins were tested. Three tanager species were able to detect differences in diets containing 8%, 10%, and 12% sugar. In pairwise choice trials, they preferred the diet highest in sugar. Neither species of manakin discriminated […]
Observations at a Paradise Tanager nest
Paradise Tanager (Tangara chilensis) Science Article 1 abstract The Paradise Tanager (Tanguru chifensis) inhabits the canopy and forest edge of tropical forests in the Amazon Basin and Guianan region of South America (Isler and Isler 1987, Ridgely and Taylor 1989). At the Tambopata Nature Reserve in southeast Peru (12’5O’S, 69’17’W) it is common in canopy […]
Observations at a Paradise Tanager nest
Paradise Tanager (Tangara chilensis) Science Article 1 abstract The Paradise Tanager (Tanguru chifensis) inhabits the canopy and forest edge of tropical forests in the Amazon Basin and Guianan region of South America (Isler and Isler 1987, Ridgely and Taylor 1989). At the Tambopata Nature Reserve in southeast Peru (12’5O’S, 69’17’W) it is common in canopy […]
Osmoregulation and adaptive radiation in the ovenbirdgenusCinclodes(Passeriformes: Furnariidae)
Ovenbird (Seiurus aurocapilla) Science Article 7 abstract The genus Cinclodes is unique among passerines because it includes two species thatcan be considered marine/coastal and also includes several species that inhabit freshwaterstreams or that shift habitats between terrestrial/fresh water and marine habitats. The Cinclodes clade satisfies two criteria of an adaptive radiation: it is monophyletic and […]
Evolution of the ovenbird-woodcreeper assemblage (Aves: Furnariidae), major shifts in nest architecture and adaptive radiation
Ovenbird (Seiurus aurocapilla) Science Article 10 abstract The Neotropical ovenbirds (Furnariidae) form an extraordinary morphologically andecologically diverse passerine radiation, which includes many examples of species thatare superficially similar to other passerine birds as a resulting from their adaptations tosimilar lifestyles. The ovenbirds further exhibits a truly remarkable variation in nesttypes, arguably approaching that found in […]
Evolution of the ovenbird-woodcreeper assemblage (Aves: Furnariidae), major shifts in nest architecture and adaptive radiation
Ovenbird (Seiurus aurocapilla) Science Article 10 abstract The Neotropical ovenbirds (Furnariidae) form an extraordinary morphologically andecologically diverse passerine radiation, which includes many examples of species thatare superficially similar to other passerine birds as a resulting from their adaptations tosimilar lifestyles. The ovenbirds further exhibits a truly remarkable variation in nesttypes, arguably approaching that found in […]
LIMITED GEOGRAPHIC VARIATION IN THE VOCALIZATIONS OFA NEOTROPICAL FURNARIID, SYNALLAXIS ALBESCENS
Pale-breasted Spinetail (Synallaxis albescens) Science Article 1 abstract I recorded and analyzed vocalizations of Synallaxis albescens from three populations in Venezuela,two continental and one island, to assess the extent of geographic variation for a species of the familyFumariidae. Previous work on geographic variation in suboscines has focused on species of the Tyrannidae. Ialso tested the […]
LIMITED GEOGRAPHIC VARIATION IN THE VOCALIZATIONS OFA NEOTROPICAL FURNARIID, SYNALLAXIS ALBESCENS
Pale-breasted Spinetail (Synallaxis albescens) Science Article 1 abstract I recorded and analyzed vocalizations of Synallaxis albescens from three populations in Venezuela,two continental and one island, to assess the extent of geographic variation for a species of the familyFumariidae. Previous work on geographic variation in suboscines has focused on species of the Tyrannidae. Ialso tested the […]