Growth rates of crustose lichens in polar areas (^*1: [44], ^*2: [45], [46], ^*3: [47], ^*4: [3], ^*5: [4]).

<p>Growth rates of crustose lichens in polar areas (^*1: <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0100735#pone.0100735-Hooker1" target="_blank">[44]</a>, ^*2: <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0100735#pone.0100735-LewisSmith1" target="_blank">[45]</a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0100735#pone.0100735-LewisSmith2" target="_blank">[46]</a>, ^*3: <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0100735#pone.0100735-Sancho4" target="_blank">[47]</a>, ^*4: <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0100735#pone.0100735-Sancho1" target="_blank">[3]</a>, ^*5: <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0100735#pone.0100735-Sancho2" target="_blank">[4]</a>).