Lesser White-fronted Goose (Anser erythropus) Science Article 2 abstract The Lesser White-fronted Goose has been afairly common breeding bird in the northern andmiddle parts of the Scandinavian mountain range.Since a few decades the species is threatened todisappear completely from Fenno-scandia (Norderhaug& Norderhaug 1984), where the populationin 1980 was estimated at 60-90 breeding pairsand 160-260 birds. […]
Phylogeography and conservation genetics of the lesser white-fronted goose (Anser erythropus)
Lesser White-fronted Goose (Anser erythropus) Science Article 1 abstract Analyses of mitochondrial control region sequences were used to infer phylogeny of Anser species,phylogeography of the lesser white-fronted goose, and genetic background of a captive stock.The genetic distances among the Anser species ranged from 0.9 to 5.5% in the complete controlregion sequences and supported the view […]
Nesting of the Lesser Swallow-tailed Swift, Panyptila cayennensis, in Guatemala.
Lesser Swallow-tailed Swift (Panyptila cayennensis) Science Article 1 abstract Although the Lesser Swallow-tailed Swift has been taken in most of the Central American republics, the small population which has been reported in the lowlands of southeastern Mexico (southern Veracruz) was thought to be separated from the more southern populations by a great expanse of territory […]
Nesting of the Lesser Swallow-tailed Swift, Panyptila cayennensis, in Guatemala.
Lesser Swallow-tailed Swift (Panyptila cayennensis) Science Article 1 abstract Although the Lesser Swallow-tailed Swift has been taken in most of the Central American republics, the small population which has been reported in the lowlands of southeastern Mexico (southern Veracruz) was thought to be separated from the more southern populations by a great expanse of territory […]
Notes on the nesting of the Cayenne Swift in Surinam.-
Lesser Swallow-tailed Swift (Panyptila cayennensis) Science Article 2 abstract nest of the Cayenne Swift (Punyptila cayennensis) is one of the most remarkable structures built by any bird in tropical South America. Although the nest has been known for some time, I am not aware of the existence of satisfactory photographs showing a nest in situ. […]
Notes on the nesting of the Cayenne Swift in Surinam.-
Lesser Swallow-tailed Swift (Panyptila cayennensis) Science Article 2 abstract nest of the Cayenne Swift (Punyptila cayennensis) is one of the most remarkable structures built by any bird in tropical South America. Although the nest has been known for some time, I am not aware of the existence of satisfactory photographs showing a nest in situ. […]
Variability of patch type preferences in relation to resource availabilityand breeding success in a bird
Lesser Spotted Woodpecker (Dendrocopos minor) Science Article 1 abstract This paper investigates how variability in partial foraging preferences for patch types can be used as a behavioral indicator of the energetic value of that patch type, and of overall food availability in the territory. The species studied was the lesser spotted woodpecker (Dendrocopos minor) and […]
Variability of patch type preferences in relation to resource availabilityand breeding success in a bird
Lesser Spotted Woodpecker (Dendrocopos minor) Science Article 1 abstract This paper investigates how variability in partial foraging preferences for patch types can be used as a behavioral indicator of the energetic value of that patch type, and of overall food availability in the territory. The species studied was the lesser spotted woodpecker (Dendrocopos minor) and […]
Geschlechtsreife, Ansiedlungsentfernung, Alter und Todes- ursachen beim Schreiadler (Aquila pomarina).
Lesser Spotted Eagle (Aquila pomarina) Science Article 4 abstract To date there are no definite conclusions as to the age at which the Lesser Spotted Eagle Aquila pomarina reaches sexual maturity. In the course of a long-term study we were able to trap 4- and 5-year-old ringed birds in Germany and Slovakia. A 4-year-old female […]
Genetic differentiation and hybridization between Greater and Lesser Spotted Eagles (Accipitriformes: Aquila clanga, A. pomarina)
Lesser Spotted Eagle (Aquila pomarina) Science Article 5 abstract Greater and lesser spotted eagles (Aquila clanga, A. pomarina) are two closely related forest eagles overlapping in breeding range in east-central Europe. In recent years a number of mixed pairs have been observed, some of which fledged hybrid young. Here we use mitochondrial (control region) DNA […]