New Publication by Hawk Mountain scientists shows seasonal changes in migration timing
September 27, 2017
Hawk Mountain Sanctuary, PA
Earlier this month, Hawk Mountain Sanctuary biologists published a new paper in collaboration with researchers in Canada and across the United States that suggests global climate change is creating long-term shifts in seasonal migration timing and the amount of time eastern North American raptors spend on their breeding grounds.
The article, "Long-term phenological shifts in migration and breeding-area residency in eastern North American raptors" was published in The Auk: Ornithological Advances on September 20. Dr. Jean-Francois Therrien, the Sanctuary’s senior research biologist, served as lead author with co-authors Director of Long-term Monitoring Dr. Laurie Goodrich, Director of Conservation Science Dr. Keith Bildstein, and seven other collaborators.
The research suggests an overall delay across species in most eastern North American raptors in autumn migration passage, which correlates with an increase in temperature. Combining those results with earlier spring migration data further suggests that most species in this region are increasing the amount of time they spend on their breeding grounds.
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