1. Alaska Stable Isotope Facility, University of Alaska Fairbanks, Fairbanks, AK, USA.
2. Department of Marine Biology, University of Alaska Fairbanks, Fairbanks, AK, USA.
3. Department of Earth and Environmental Sciences, University of Ottawa, Ottawa, ON, Canada.
4. Department of Biology, University of Ottawa, Ottawa, ON, Canada.
5. University of Alaska Museum of the North, Fairbanks, AK, USA.
6. Department of Geosciences, University of Alaska Fairbanks, Fairbanks, AK, USA.
7. Department of Biological Science, Florida State University, Tallahassee, FL, USA.
8. Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, AK, USA.
9. Department of General, Analytical and Physical Chemistry, Montanuniversität Leoben, Leoben, Austria.
10. Howard Hughes Medical Institute, University of California Santa Cruz, Santa Cruz, CA, USA.
11. Department of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA, USA.
12. Arctic Studies Center, Liaocheng University, Liaocheng City, Shandong Province, China.
13. National Park Service, Fairbanks, AK, USA.
14. Department of Biostatistics, University of Washington, Seattle, WA, USA.