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Mitigation Techniques Fall Short of Preventing Electrocution of Golden Eagles on Power Poles

Despite efforts to retrofit power poles and to build new poles to avian-friendly standards, electrocution remains a substantial cause of death for the golden eagle. The global conservation problem results in an estimated 504 eagles electrocuted annually in North America alone. A new Journal of Wildlife Management article examines the risk factors and mitigation techniques from literature published from 1940–2016 and provides new strategies by region to target high-risk poles that could substantially reduce the mortalities.  

Wednesday, January 24, 2018 12:01 am EST
"Electrocution of eagles is preventable with careful retrofitting of existing poles and use of avian-friendly construction design on new poles located in eagle habitat"

Despite efforts to retrofit power poles and to build new poles to avian-friendly standards, electrocution remains a substantial cause of death for the golden eagle. The global conservation problem results in an estimated 504 eagles electrocuted annually in North America alone. A new Journal of Wildlife Management article examines the risk factors and mitigation techniques from literature published from 1940–2016 and provides new strategies by region to target high-risk poles that could substantially reduce the mortalities.  

The authors note eight electrocution risk factors, with pole configuration as the most frequently identified. Age was the second most frequently identified risk factor, with juvenile eagles electrocuted at approximately twice the rate of subadults or adults. Risk was also associated with large body size, high-quality habitat, high prey density, winter dispersal, inclement weather, and intraspecific interactions.

Risk modeling based on these factors may help electric utilities and other stakeholders identify and prioritize high-risk poles for retrofitting.

“Electrocution of eagles is preventable with careful retrofitting of existing poles and use of avian-friendly construction design on new poles located in eagle habitat,” said lead author Elizabeth Mojica, of EDM International, Inc.

To help offset the costs, the authors suggest that compensatory mitigation funding from
eagle take permitting might persuade utility companies to make the modifications.


Additional Information

Link to Study: http://onlinelibrary.wiley.com/doi/10.1002/jwmg.21412/full

About Journal

The Journal of Wildlife Management publishes manuscripts containing information from original research that contributes to basic wildlife science. Suitable topics include investigations into the biology and ecology of wildlife and their habitats that has direct or indirect implications for wildlife management and conservation. This includes basic information on wildlife habitat use, reproduction, genetics, demographics, viability, predator-prey relationships, space-use, movements, behavior, and physiology; but within the context of contemporary management and conservation issues such that the knowledge may ultimately be useful to wildlife practitioners. 

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Contact:

Penny Smith
+44 (0) 1243 770448
sciencenewsroom@wiley.com

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