Figure 1 | Scientific Reports

Figure 1

From: Continental scale variability of foliar nitrogen and carbon isotopes in Populus balsamifera and their relationships with climate

Figure 1

Locations of foliar P. balsamifera samples acquired for this study mapped over mean annual precipitation and mean annual temperature for North America. Inset shows typical fine-grain variability in foliar Δ13C and δ15N. This map of North America was produced in ArcGIS 10.2.2 (http://www.esri.com/) using Bioclim mean annual temperature and annual precipitation layers50. The bivariate legend was produced using custom Python code (https://www.python.org/) developed by SMG.

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