White-fronted Manakin (Lepidothrix serena) Science Article 2 abstract The White-fronted Manakin, Lepidothrix serena (formerly in the genus Pipra), is currently recognized as a polytypic species that includes nominate serena, from the eastern Guianan region, and suavissima, from southern and eastern Venezuela and Guyana. Nominate serena and suavissima are significantly different in plumage, syringeal morphology, and […]
Category: Passeriformes
Observations of the White-fronted Manakin (Pipra serena) in Suriname
White-fronted Manakin (Lepidothrix serena) Science Article 1 abstract The White-fronted Manakin (Pipra serena) is found in the highlands of the Guianas, southeastern Venezuela, and adjacent northern Brazil (Haverschmidt 1968,M eyer de Schauensee and Phelps1978). Pipra serena is a small manakin (7-8 g) of the P. coronata species-group (Snow 1979). Males are distinguished by their velvety […]
Characterization of microsatellite DNA markers inthe white-bearded manakin (Manacus manacus)
White-bearded Manakin (Manacus manacus) Science Article 1 abstract Eight microsatellite DNA markers were isolated and characterized from white beardedmanakin (Manacus manacus) using an enrichment cloning procedure. A large number ofalleles (range 9-25), and high levels of observed heterozygosity (mean 0.67) were resolvedin 236 individuals. No evidence for linkage disequilibrium or the presence of null alleleswas […]
Abundance of two Dendrocincla woodcreepers (Aves:Dendrocolaptidae) in relation to forest structure in CentralAmazonia
White-chinned Woodcreeper (Dendrocincla merula) Science Article 1 abstract Few studies have been conducted to verify how the structure of the forest affects the occurence and abundance of neotropical birds.Our research was undertaken between January 2002 and July 2004 at the Reserva Ducke, near Manaus (02
Natal and breeding dispersal in the mount White-crowned Sparrow Zonotrichia leucophrys oriantha.
White-crowned Sparrow (Zonotrichia leucophrys) Science Article 1 abstract Dispersal data were collected on Mountain White-crowned Sparrow Zonotrichia leucophrys oriantha, an open-nesting migratory songbird breeding in high elevation meadows of the Sierra Nevada of California. Young birds began to move soon after fledging. Although some remained on their meadow of birth until migration, most moved away. […]
NOTES ON THE BEHAVIOR OF THE WHITE BELLBIRD
White Bellbird (Procnias albus) Science Article 1 abstract Little has been recorded of the White Bellbird (Procnias alba) in the field. In March 1960 I made brief observationso n a singlea dult male in the Kanaku Mountains of southern Guyana, but my description of the displays was very incomplete (B. K. Snow 1961, Auk 78: […]
Orphean Warbler, species report Spain
Western Orphean Warbler (Sylvia hortensis) Science Article 1 abstract Orphean Warbler, species report Spain Javier Blasco-Zumeta, Laboratorio Virtual Ibercaja Download article download full text (pdf)
Provisioning behaviour in relation to food availability and nestling food demand in the Water Pipit Anthus spinoletta
Water Pipit (Anthus spinoletta) Science Article 3 abstract Insufficient food provisioning by parents can reduce growth rate of altricial nestlings, their size and weight at fledging, and also affect survival. Therefore at low food availability, parents should increase their food provisioning effort. In insectivorous Water Pipits Anthus spinoletta prey biomass differed up to 50 times […]
The impact of grazing animals on nesting success of grassland passerines in farmland and natural habitats: a field experiment
Water Pipit (Anthus spinoletta) Science Article 1 abstract A study was made of the influence of trampling by grazing animals on the nesting success of real nests (meadow pipit, Anthus pratensis; water pipit, Anthus spinoletta; and skylark, Alauda arvensis) and simulated nests (caps from jam-jars filled by green plasticine) on pasture in the Orlicke Mountains […]
Territory quality and reproductive success: Can water pipits Anthus spinoletta assess the relationship reliably?
Water Pipit (Anthus spinoletta) Science Article 2 abstract Variation in avian reproductive success is often caused by differences among territories in food supply, safety from predators and microclimatic conditions at the nest. Yet, in some habitats these components of territory quality, and hence future reproductive success, are difficult to assess at the time of settlement. […]