Continental-scale leaf δ 13 C and δ 18 O Leaf δ 13 C values for all Callitris samples across species and sites showed a strong trend of decreasing discrimination with decreasing rainfall (Fig. 5 ).
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Continental-scale leaf δ 13 C and δ 18 O Leaf δ 13 C values for all Callitris samples across species and sites showed a strong trend of decreasing discrimination with decreasing rainfall (Fig. 5 ).