Filtering by: Creator Björk, Robert G. Remove constraint Creator: Björk, Robert G. Keyword Betula pubescens Remove constraint Keyword: Betula pubescens Keyword Betula pubescens ssp. tortuosa Remove constraint Keyword: Betula pubescens ssp. tortuosa Keyword Phylogenetic diversity Remove constraint Keyword: Phylogenetic diversity Keyword Plant community structure Remove constraint Keyword: Plant community structure