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Peregrine Falcons
Peregrine falcons nest on the Yukon & Charley Rivers bluffs. Available nesting space is potentially a population-limiting factor.
Wolves
Wolf populations are monitored each winter in the preserve by aerial surveys and radio-collared individual wolves.
Birds
Species distribution, passerines, and ptarmigan research
Related Content
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 Read the abstract and get the link to a study that looks at social behavior among canids worldwide: Benson, J., D. Keiter, P. Mahoney, B. Allen, L. Allen, B. L. Borg,… K. Joly, … M. Sorum, et al. 2024. Intrinsic and environmental drivers of pairwise cohesion in wild Canis social groups. Ecology: e4492.  Read a summary and get the link to an article about caribou foraging: Ehlers, L., E. Palm, J. Herriges, T. Bentzen, M. Suitor, K. Joly, J. Millspaugh, P. Donnelly, J. Gross, J. Wells, B. Larue, and M. Hebblewhite. 2024. A taste of space: Remote animal observations and discrete-choice models provide new insights into foraging and density dynamics for a large subarctic herbivore. Journal of Animal Ecology 93(7): 891-905.  Read the abstract and summary and get the link to a recently published article of wolf denning: Joly, K., M. S. Sorum, and M. D. Cameron. 2018. Denning ecology of wolves in east-central Alaska, 1993-2017. Arctic Institute of North America 71(4).  Wildlife biologists have long known that wolves occasionally travel enormous distances in search of new mates and ranges. However, the advent of GPS-based wildlife tracking has allowed researchers to follow in the very footsteps of wolves as they travel across vast and wild landscapes. Alaska National Park scientists have witnessed some surprisingly intimate and breathtaking interconnections between wolves, parks and people by using this technology over the last few years.  The American peregrine falcon is one of the best known raptors in North America. For years, American peregrine populations declined due to problems with egg-shell thinning caused by persistent organic pollutants such as DDT. The American peregrine is one of three peregrine species found throughout North America, from northern Mexico all the way to Alaska.  Read the abstract and link to the article on genetic studies of peregrine falcon genetics and what it means: Sonsthagen, S. A., T. Swem, S. Ambrose, M. J. Flamme, C. M. White, G. K. Sage, and S. L. Talbot. 2022. The DDT-induced decline influenced genetic diversity in naturally recovered Peregrine falcons (Falco peregrinus) nesting within the Alaska Arctic and eastern interior. IBIS: e13095.  Discover the importance of Dall Sheep in Alaska's National Parks  How might climate change impact the world's northernmost wild sheep population?  Discovery how and why scientists monitor Dall sheep in national parks throughout Alaska.  Learn about the two ways humans harvest sheep - for subsistence use and in sport hunting.
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