Tag: all of Aquila

Long-term changes in nest defense intensity of the spanish Imperial Eagle Aquila adalberti.

Spanish Imperial Eagle (Aquila adalberti) Science Article 1 abstract This paper deals with the variations recorded in the nest defence of the Imperial Eagle Aquila adalberti after the declaration of Donana as a national park (Parque Nacional Donana, SW Spain) and the cessation of strong human pressure. Increases have been detected in the defence and […]

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 […]

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 […]

The Situation of the Lesser Spotted Eagle Aquila pomarina in Germany: The need for an Action Plan and active Conservation

Lesser Spotted Eagle (Aquila pomarina) Science Article 3 abstract Since about 1800 the total breeding area of the Lesser Spotted Eagle Aquila pomarina in Germany has shrunk by some 90 % from a then 83,000 km2 to a small residual area today of some 10,000km2. The western border of the breeding range has shifted several […]

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 […]

Predicted and observed migration speed in Lesser Spotted Eagle Aquila pomarina.

Lesser Spotted Eagle (Aquila pomarina) Science Article 6 abstract Satellite telemetry has recently been used to track the migration of eight Lesser Spotted Eagles Aquilla pomarina and one Spotted Eagle A. clanga (Meyburg et al. 1993, 1995a and b). I used aerodynamic theory to predict the overall migration speed in these eagles using either thermal […]

Productivity and diet of lesser spotted eagle (Aquila pomarina) in Lithuania in 2001-2003

Lesser Spotted Eagle (Aquila pomarina) Science Article 1 abstract In 2001-2003, the data on the productivity and diet of Lesser Spotted Eagle (Aquila pomarina) were collected in Central, Northern and Eastern parts of Lithuania. Though during the mentioned period productivity varied greatly, mean productivity of 0.61 was very similar to that more than 10 years […]

Gelegegrosse und Bruterfolg des Schreiadlers (Aquila pomarina) und des Kaiseradlers (Aquila heliaca) in den ostslowakischen Karpaten 1966-1978

Imperial Eagle (Aquila heliaca) Science Article 1 abstract Seit langerer Zeit widmen wir uns dem Studium der Greifvogel in der Ostslowakei. Dabei konnten wir in dreizehn aufeinanderfolgenden Beobachtungsjahren u.a. 65 Bruten des Schreiadlers und 28 des Kaiseradlers kontrollieren. Fur beide Arten liegen uber Gelegegro