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. 2019 Mar 14;10:289. doi: 10.3389/fpls.2019.00289

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Copyright © 2019 Tonin, Gerdol, Tomaselli, Petraglia, Carbognani and Wellstein.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Box-whisker plots for soil temperatures in early and late snowmelt areas (number of sites = 4) for 6 weeks from melt-out date in 2016. The boxes comprise the 25th and 75th percentile with the upper and lower whiskers extending from the hinge to the upper and lower 1.5 inter-quartile ranges, respectively. The different letters indicate significant differences (P < 0.05) between early and late snowmelt areas. Detailed results of linear mixed effect models are given in Supplementary Table S4.