Patterns of Cross-Continental Variation in Tree Seed Mass in the Canadian Boreal Forest

• Jushan Liu,

  Affiliations Department of Plant Sciences, University of Saskatchewan, Saskatoon, Canada, Institute of Grassland Science, Northeast Normal University, and Key Laboratory of Vegetation Ecology, Ministry of Education, Changchun, P.R. China

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• Yuguang Bai ,

  * E-mail: yuguang.bai@usask.ca

  Affiliation Department of Plant Sciences, University of Saskatchewan, Saskatoon, Canada

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• Eric G. Lamb,

  Affiliation Department of Plant Sciences, University of Saskatchewan, Saskatoon, Canada

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• Dale Simpson,

  Affiliation Natural Resources Canada, Atlantic Forestry Centre, Fredericton, Canada

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• Guofang Liu,

  Affiliation State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, P.R. China

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• Yongsheng Wei,

  Affiliations Department of Plant Sciences, University of Saskatchewan, Saskatoon, Canada, College of Life Sciences, Northwest Agriculture & Forestry University, Yangling, P.R. China

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• Deli Wang,

  Affiliation Institute of Grassland Science, Northeast Normal University, and Key Laboratory of Vegetation Ecology, Ministry of Education, Changchun, P.R. China

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• Daniel W. McKenney,

  Affiliation Natural Resources Canada, Great Lakes Forestry Centre, Sault Ste. Marie, Canada

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• Pia Papadopol

  Affiliation Natural Resources Canada, Great Lakes Forestry Centre, Sault Ste. Marie, Canada

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