B. Schroeter, T. G. A. Green, S. Pannewitz, M. Schlensog and L. G. Sancho 2011: Summer variability, winter dormancy: Lichen activity over 3 years at Botany Bay, 77°S latitude, continental Antarctica. - Polar Biology34(1): 13-22. [RLL List # 222 / Rec.# 32766] Keywords: HYDRATION/ PRODUCTIVITY/ SNOW FALL/ STRESS
Abstract: [Researchers measured the hydrated metabolic activity of Umbilicaria aprina, and found that the lichen was "active" 7% of the 28-month study period.]