Kappen, L 1985: Vegetation and ecology of ice-free areas of northern Victoria Land, Antarctica. 2. Ecological conditions in typical microhabitats of lichens at Birthday Ridge. - Polar Biology4: 227-236. [RLL List # 126-57 / Rec.# 9800] Keywords: ANTARCTIC/ VICTORIA LAND/ ECOLOGY/ MICROCLIMATE/ UMBILICARIA/ USNEA/ OWN
Abstract: 9 figures. 10 tables. [Reports on the sheltering effect on growth of lichens and microclimatic measurements. "The presence of lichens was dependent on the moisture conditions of the habitat. It was observed that snow ... accumulated in summer only in deeper levels between rocks, and that the snow rapidly melted on contact with the lichens. The lichens in soaked state had always less than optimum temperatures for net photosynthesis. The rock gaps at Birthday Ridge form oases, the only localities where moisture is provided, and temperature is high enough to enable growth of lichens and mosses."]