Exotic Brome-Grasses in Arid and Semiarid Ecosystems of the Western US

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Fig. 5.1 Broad ecological tolerance in the introduced range can occur through three main pro-
cesses described here. Symbols inside each box represent different genotypes. ( a ) Preadapted
genotypes, ( b ) novel genotypes, and ( c ) phenotypic plasticity


show that B. tectorum can tolerate a wide range of environmental conditions as the
result of genetic variation and locally adapted ecotypes. Here, we review the
evidence for existing phenotypic plasticity and local adaptation in B. tectorum in
its invaded range and discuss implications for future management in a changing
climate.


R.A. Hufft and T.J. Zelikova
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