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. 2016 Mar 22;181:931–945. doi: 10.1007/s00442-016-3608-3

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© The Author(s) 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 5 — a δ¹⁸O composition of moss water (MW) as a function of latitude. Dots Elephant Island (ELE; l ight grey dots represent data from ELE sites 2 and 3), upward triangles Ardley Island (ARD), squares Norsel Point (NOR), downward triangles Green Island (GRE). Grey line significant linear model fitted to all data, plotted with 95 % confidence interval; black line significant linear model fitted to black data points (excluding ELE sites 2, 3) plotted with 95 % confidence interval. Grey cross-hairs represent mean δ¹⁸O composition of source water (error bars represent SE), white asterisk indicates January precipitation at Vernadsky. b Enrichment of δ¹⁸O_C relative to δ¹⁸O_moss-water as a function of latitude. Black line significant linear model fitted to all data (P = 0.0011, r ² = 0.14) and plotted with 95 % confidence interval. Light-grey dots represent data from ELE sites 2 and 3