Fig. 5: Coupling between responses of GPP and R to smoke and associations with lake nutrient concentrations. | Communications Earth & Environment

Fig. 5: Coupling between responses of GPP and R to smoke and associations with lake nutrient concentrations.

From: Wildfire smoke reduces lake ecosystem metabolic rates unequally across a trophic gradient

Fig. 5

a For each dataset (n = 22) the median response of respiration to smoke (ΔR; z-scored; y-axis) is plotted against the median response of primary production (ΔGPP; z-scored; x-axis). Dashed horizontal and vertical lines show zero response, the gray diagonal line shows the 1:1 relationship. In all panels, circles represent pelagic sites; diamonds represent littoral sites. In all panels, points are colored by lake trophic status (oligotrophic = blue, mesotrophic = turquoise, eutrophic = yellow-green). b ΔGPP (z-score) plotted against mean total dissolved P (log TP; µL−1). c ΔR (z-score) plotted against log TP. The solid black line shows a significant linear relationship (R2 = 0.41, p < 0.001).

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