Habitat selection by adult Golden EaglesAquila chrysaetosduring the breeding season and implications for wind farm establishment

Autor: Per Sandström, Tim Hipkiss, Holger Dettki, Navinder Singh, Peter H. Bloom, Jeff W. Kidd, Edward H. R. Moss, Frauke Ecke, Birger Hörnfeldt, Scott E. Thomas
Rok vydání: 2016
Předmět:
Zdroj: Bird Study. 63:233-240
ISSN: 1944-6705
0006-3657
DOI: 10.1080/00063657.2016.1183110
Popis: Capsule: Global Positioning System (GPS)-tagged adult Golden Eagles Aquila chrysaetos breeding in forests in northern Sweden selected clear-cuts, coniferous forests with lichens and steep slopes during the breeding season but avoided wetlands and mixed forest.Aims: To investigate the habitat selection patterns of tree-nesting Golden Eagles, and identify how potential conflicts with wind farm development could be minimized.Methods: The study is based on GPS tracking data from 22 adult eagles. We estimated home range sizes using a biased random bridge approach and habitat selection patterns using resource selection functions following a use-availability design.Results: Core home range size among adults was variable during the breeding season (5–30 km2). Individual movement extents were variable, but sexes did not significantly differ in their scale of movement. At the landscape scale, individuals selected for clear-cuts and coniferous forest with ground lichens, whereas wetland, water bodies and mix...
Databáze: OpenAIRE