Flight Paths of Migrating Golden Eagles and the Risk Associated with Wind Energy Development in the Rocky Mountains
In recent years, the eastern foothills of the Rocky Mountains in northeastern British Columbia have received interest as a site of industrial wind energy development but, simultaneously, have been the subject of concern about wind development coinciding with a known migratory corridor of Golden Eagl...
Published in: | Avian Conservation and Ecology |
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Resilience Alliance
2013
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Online Access: | https://doi.org/10.5751/ACE-00608-080212 https://doaj.org/article/62fd7b91e1594ca49f3b7d74c2e7b270 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:62fd7b91e1594ca49f3b7d74c2e7b270 2023-05-15T18:49:20+02:00 Flight Paths of Migrating Golden Eagles and the Risk Associated with Wind Energy Development in the Rocky Mountains Naira N. Johnston James E. Bradley Andrea C. Pomeroy Ken A. Otter 2013-12-01 https://doi.org/10.5751/ACE-00608-080212 https://doaj.org/article/62fd7b91e1594ca49f3b7d74c2e7b270 en eng Resilience Alliance 1712-6568 doi:10.5751/ACE-00608-080212 https://doaj.org/article/62fd7b91e1594ca49f3b7d74c2e7b270 undefined Avian Conservation and Ecology, Vol 8, Iss 2, p 12 (2013) Aquila chrysaetos collision risk flight behavior Golden Eagle migration Rocky Mountains weather patterns wind energy socio envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2013 fttriple https://doi.org/10.5751/ACE-00608-080212 2023-01-22T19:30:28Z In recent years, the eastern foothills of the Rocky Mountains in northeastern British Columbia have received interest as a site of industrial wind energy development but, simultaneously, have been the subject of concern about wind development coinciding with a known migratory corridor of Golden Eagles (Aquila chrysaetos). We tracked and quantified eagle flights that crossed or followed ridgelines slated for one such wind development. We found that hourly passage rates during fall migration peaked at midday and increased by 17% with each 1 km/h increase in wind speed and by 11% with each 1°C increase in temperature. The propensity to cross the ridge tops where turbines would be situated differed between age classes, with juvenile eagles almost twice as likely to traverse the ridge-top area as adults or subadults. During fall migration, Golden Eagles were more likely to cross ridges at turbine heights (risk zone, < 150 m above ground) under headwinds or tailwinds, but this likelihood decreased with increasing temperature. Conversely, during spring migration, eagles were more likely to move within the ridge-top area under eastern crosswinds. Identifying Golden Eagle flight routes and altitudes with respect to major weather systems and local topography in the Rockies may help identify scenarios in which the potential for collisions is greatest at this and other installations. Article in Journal/Newspaper Aquila chrysaetos golden eagle Unknown Avian Conservation and Ecology 8 2 |
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Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
Aquila chrysaetos collision risk flight behavior Golden Eagle migration Rocky Mountains weather patterns wind energy socio envir |
spellingShingle |
Aquila chrysaetos collision risk flight behavior Golden Eagle migration Rocky Mountains weather patterns wind energy socio envir Naira N. Johnston James E. Bradley Andrea C. Pomeroy Ken A. Otter Flight Paths of Migrating Golden Eagles and the Risk Associated with Wind Energy Development in the Rocky Mountains |
topic_facet |
Aquila chrysaetos collision risk flight behavior Golden Eagle migration Rocky Mountains weather patterns wind energy socio envir |
description |
In recent years, the eastern foothills of the Rocky Mountains in northeastern British Columbia have received interest as a site of industrial wind energy development but, simultaneously, have been the subject of concern about wind development coinciding with a known migratory corridor of Golden Eagles (Aquila chrysaetos). We tracked and quantified eagle flights that crossed or followed ridgelines slated for one such wind development. We found that hourly passage rates during fall migration peaked at midday and increased by 17% with each 1 km/h increase in wind speed and by 11% with each 1°C increase in temperature. The propensity to cross the ridge tops where turbines would be situated differed between age classes, with juvenile eagles almost twice as likely to traverse the ridge-top area as adults or subadults. During fall migration, Golden Eagles were more likely to cross ridges at turbine heights (risk zone, < 150 m above ground) under headwinds or tailwinds, but this likelihood decreased with increasing temperature. Conversely, during spring migration, eagles were more likely to move within the ridge-top area under eastern crosswinds. Identifying Golden Eagle flight routes and altitudes with respect to major weather systems and local topography in the Rockies may help identify scenarios in which the potential for collisions is greatest at this and other installations. |
format |
Article in Journal/Newspaper |
author |
Naira N. Johnston James E. Bradley Andrea C. Pomeroy Ken A. Otter |
author_facet |
Naira N. Johnston James E. Bradley Andrea C. Pomeroy Ken A. Otter |
author_sort |
Naira N. Johnston |
title |
Flight Paths of Migrating Golden Eagles and the Risk Associated with Wind Energy Development in the Rocky Mountains |
title_short |
Flight Paths of Migrating Golden Eagles and the Risk Associated with Wind Energy Development in the Rocky Mountains |
title_full |
Flight Paths of Migrating Golden Eagles and the Risk Associated with Wind Energy Development in the Rocky Mountains |
title_fullStr |
Flight Paths of Migrating Golden Eagles and the Risk Associated with Wind Energy Development in the Rocky Mountains |
title_full_unstemmed |
Flight Paths of Migrating Golden Eagles and the Risk Associated with Wind Energy Development in the Rocky Mountains |
title_sort |
flight paths of migrating golden eagles and the risk associated with wind energy development in the rocky mountains |
publisher |
Resilience Alliance |
publishDate |
2013 |
url |
https://doi.org/10.5751/ACE-00608-080212 https://doaj.org/article/62fd7b91e1594ca49f3b7d74c2e7b270 |
genre |
Aquila chrysaetos golden eagle |
genre_facet |
Aquila chrysaetos golden eagle |
op_source |
Avian Conservation and Ecology, Vol 8, Iss 2, p 12 (2013) |
op_relation |
1712-6568 doi:10.5751/ACE-00608-080212 https://doaj.org/article/62fd7b91e1594ca49f3b7d74c2e7b270 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5751/ACE-00608-080212 |
container_title |
Avian Conservation and Ecology |
container_volume |
8 |
container_issue |
2 |
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1766242921722413056 |