About the Authors
- Philip E. Higuera
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*To whom correspondence should be addressed. E-mail: philip.higuera@montana.edu
Current address: Montana State University, Department of Earth Sciences, Bozeman, Montana, United States of America; Department of Plant Biology, University of Illinois, Urbana, Illinois, United States of America
Affiliation College of Forest Resources, University of Washington, Seattle, Washington, United States of America
- Linda B. Brubaker
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Affiliation College of Forest Resources, University of Washington, Seattle, Washington, United States of America
- Patricia M. Anderson
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Affiliation Department of Earth and Space Sciences and Quaternary Research Center, University of Washington, Seattle, Washington, United States of America
- Thomas A. Brown
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Affiliation Lawrence Livermore National Laboratory, Center for Accelerator Mass Spectrometry, Livermore, California, United States of America
- Alison T. Kennedy
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Affiliation Department of Earth Sciences, Montana State University, Bozeman, Montana, United States of America
- Feng Sheng Hu
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Affiliations Department of Plant Biology, University of Illinois, Urbana, Illinois, United States of America, Department of Geology, University of Illinois, Urbana, Illinois, United States of America
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: FH PH LB PA. Performed the experiments: PH. Analyzed the data: PH AK. Wrote the paper: PH. Other: Provided significant input to the manuscript: FH. Gathered and summarized data on modern tundra fires: AK. Oversaw 14C dating and assisted in chronology development: TB. Counted pollen from Xindi Lake: PA. Provided significant input to the manuscript: PA LB. Counted pollen from Ruppert Lake: LB.