O. L. Lange and T. G. A. Green 2008: Diel and seasonal courses of ambient carbon dioxide concentration and their effect on productivity of the epilithic lichen Lecanora muralis in a temperate, suburban habitat. - Lichenologist40(5): 449-462. [RLL List # 212 / Rec.# 30127] Keywords: LECANORA MURALIS/ SAXICOLOUS/ PHOTOSYNTHESIS/ CO2 ASSIMILATION/ MICROCLIMATE/ DEW/ GLOBAL CLIMATE CHANGE/ WATER CONTENT/ GERMANY/ BAVARIA
Abstract: [Study in suburban Würzburg, Germany, attempting to model CO2 assimilation in relation to various environmental factors, especially light and water content from nocturnal dew or frost. "Conditions, especially interrelationships between lichen hydration, light and CO2 are so complex that we are not yet able to extend our estimates to other environmental situations of photosynthetic activity of L. muralis." Authors also note: "As is true for many other lichen carbon fixation problems, the accurate modelling and prediction of thallus water content remains the Holy Grail of lichen ecophysiology."]