]>Do Nitrogen Concentration and Forage Quality of the Moss <i>Racomitrium lanuginosum</i> Increase with Latitude? : Figure 1
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474627.fig.001b
Figure 1: (a) Map showing locations of sample sites and published material. (b) Moss % N concentration plotted against latitude. Polynomial regression line; 𝑅 2 = 3 6 . 1 % , 𝑛 = 2 7 , 𝑃 < . 0 1 . (c) Box plots showing median interquartile range and 95% confidence intervals of moss % N grouped against predicted regional N deposition derrived from model predictions [12]. (d) C/N ratio (log axis) of moss plotted against latitude. Regression line; 𝑅 2 = 3 6 . 0 % , 𝑛 = 2 0 , 𝑃 < . 0 1 . In (a), (b) and (d), circles represent 2007 samples, triangles samples from 1990s, and crosses published material (C/N data not available in published material). The dashed line at 66.56° represents the latitude of the Arctic Circle.