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Fig. 4 | BMC Evolutionary Biology

Fig. 4

From: Adaptive differentiation coincides with local bioclimatic conditions along an elevational cline in populations of a lichen-forming fungus

Fig. 4

Photosynthetic CO2 gas exchange of L. pustulata highland (population 6; blue) and lowland population (populations 1 to 5; red) related to thallus water content (TWC). TWC is expressed as mm “precipitation”. Polynomic regressions lines are indicated with their r2 value. Circles = net CO2 uptake, triangles = dark respiration

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