Regional conservation priorities for a large predator: golden eagles (Aquila chrysaetos) in the Alpine range

2002 ◽  
Vol 103 (2) ◽  
pp. 163-172 ◽  
Author(s):  
Paolo Pedrini ◽  
Fabrizio Sergio
1992 ◽  
Vol 2 (3) ◽  
pp. 175-183 ◽  
Author(s):  
J. Watson

SummaryPopulation estimates (number of breeding pairs) of Golden Eagles Aquila chrysaetos are given for most countries in Europe based on recent published accounts. Where published data are not available information is from local raptor specialists. The “best estimate” of the contemporary European population is 5,600 pairs ± 5%. The largest numbers are in Spain (c. 1,200 pairs) with Norway, European Russia, Scotland and Sweden each holding over 300 pairs. Information on trends reveals that most substantial populations (> 200 pairs) are stable; decreases are reported from some Baltic countries and in parts of southeast Europe. The total population is also shown for five biogeographic regions across Europe. In some cases, such “regions” may be more appropriate for the formulation of conservation priorities and policies than are the biologically artificial units defined by national boundaries.Des estimations des populations (nombre de couples nicheurs) d'Aigles royaux basées sur des publications récentes sont présentées pour la plupart des pays d'Europe. Là où les publications font défaut, des informations ont été requises apurès de spécialistes locaux. La population européene actuelle est estimée à 5,600 couples ± 5%. Les populations les plus fortes, soit plus de 300 couples, se trouvent en Espagne (env. 1,200 couples), Norvege, Russie européene, Ecosse et Suède. Les informations sur les tendances des fluctuations indiquent que la plupart des grandes populations (plus de 200 couples) sont stables; un déclin a été constaté chez certaines populations de l'est de la Baltique et du sudest de l'Europe. La population totale est aussi indiquée pour cinq régions biogéographiques qui peuvent s'avérer plus adéquates que les pays avec leurs frontières artifi-cielles pour la formulation de priorités et d'une politique pour la conservation de l'espèce.


2018 ◽  
Vol 144 (3) ◽  
pp. 1742-1742
Author(s):  
Edward J. Walsh ◽  
Peggy B. Nelson ◽  
Julia Ponder ◽  
Christopher Milliren ◽  
Christopher Feist ◽  
...  

2015 ◽  
Vol 156 (4) ◽  
pp. 1095-1103 ◽  
Author(s):  
Lukas Jenni ◽  
Milena M. Madry ◽  
Thomas Kraemer ◽  
Jacqueline Kupper ◽  
Hanspeter Naegeli ◽  
...  

The Condor ◽  
2017 ◽  
Vol 119 (4) ◽  
pp. 697-719 ◽  
Author(s):  
Tricia A. Miller ◽  
Robert P. Brooks ◽  
Michael J. Lanzone ◽  
Jeff Cooper ◽  
Kieran O'Malley ◽  
...  

2016 ◽  
Vol 42 (1) ◽  
pp. 51-60 ◽  
Author(s):  
KAREN OBERHAUSER ◽  
RUSCENA WIEDERHOLT ◽  
JAY E. DIFFENDORFER ◽  
DARIUS SEMMENS ◽  
LESLIE RIES ◽  
...  

Data Series ◽  
10.3133/ds994 ◽  
2016 ◽  
Author(s):  
Jeff A. Tracey ◽  
Melanie C. Madden ◽  
Jeremy B. Sebes ◽  
Peter H. Bloom ◽  
Todd E. Katzner ◽  
...  

2021 ◽  
Vol 44 ◽  
pp. 12-18
Author(s):  
Henning Dunker

Sixteen occupied nesting territories of Golden Eagle Aquila chrysaetos were studied between 2000 and 2020, in the southern part of the valley of Valdres, southeast Norway. Most of the study area consists of rolling hills dominated by spruce Picea abies with numerous clear-cuts. It was concluded that at least six (about 40%) of the eagle pairs in these territories move back and forth between two alternate, distant nesting areas 5.3 km apart (average). In two additional pairs, a second nesting area was considered possible. In the remaining eight, only one nesting area was found. The periods of one nesting area in use varied from 2–19 years, before moving to the other nesting area. This result was supported by panoramic mid-day surveillance of the air space between the two nesting areas during 2014–2020. The maintenance of a second core nesting area is most likely a strategy for moving to a more favourable hunting area and might be initiated by a new mate in the pair. The move might also be influenced by avoidance of a close neighbouring pair. A switch of nesting areas, as indicated by this study, could significantly affect results, when the number of eagle pairs in a certain area is counted.   Cover photo: Golden eagle. Photo: Frode Falkenberg.


The Condor ◽  
2005 ◽  
Vol 107 (2) ◽  
pp. 469-473
Author(s):  
Brian J. McCaffery ◽  
Carol McIntyre

Abstract A recent summary of raptor migration count data concluded that the status of Golden Eagles (Aquila chrysaetos) in western North America warranted concern (Hoffman and Smith 2003). Our analysis of these data did not lead us to the same conclusion. We have three specific concerns. First, the regional characterizations of eagle migration in Hoffman and Smith (2003) are based on a very small sample of sites. Therefore, we recommend that these characterizations be considered as hypothetical in nature. Second, we suggest that the population cycles and patterns of age-specific population change described by Hoffman and Smith (2003) are neither as general nor as clear-cut as they indicated. Finally, although the authors expressed concern about the status of Golden Eagles based upon both their findings and data from other sources, we did not find compelling evidence for population declines in our inspection of those same data. Disparidad entre Resultados y Conclusiones: ¿Es el Estatus de Aquila chrysaetos Especialmente Preocupante de Acuerdo a los Conteos Migratorios del Oeste de los Estados Unidos? Resumen. Un resumen de los datos de conteos de migración de rapaces realizado recientemente concluyó que el estatus de Aquila chrysaetos en el oeste de Norte América es preocupante (Hoffman y Smith 2003). Nuestro análisis de los mismos datos no nos llevó a la misma conclusión, y tenemos tres inquietudes específicas. Primero, las caracterizaciones regionales de la migración de las águilas en Hoffman y Smith (2003) están basadas en una muestra de sitios muy pequeña. Por tanto, recomendamos que dichas caracterizaciones se consideren hipotéticas. Segundo, sugerimos que los ciclos poblacionales y los patrones de cambio poblacional edad-específicos descritos por Hoffman y Smith (2003) no son tan generales ni tan claros como ellos lo indicaron. Finalente, aunque los autores se manifestaron preocupados por el estatus de A. chrysaetos basándose en sus hallazgos y en datos de otras fuentes, al inspeccionar los mismos datos nosotros no encontramos evidencia contundente de que existan tales disminuciones poblacionales.


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