oa Madoqua - Eight days in the life of a desert lichen: water relations and photosynthesis of Teloschistes capensis in the coastal fog zone of the Namib Desert
|Article Title||Eight days in the life of a desert lichen: water relations and photosynthesis of Teloschistes capensis in the coastal fog zone of the Namib Desert|
|© Publisher:||Namibian Ministry of Environment and Tourism|
|Affiliations||1 *Lehrstuhl Fur Botanik II der Universitat Wurzburg, Germany. **Department of Botany, University of the North, Sovenga, RSA|
|Publication Date||Jan 1990|
|Pages||17 - 30|
|Keyword(s)||Distributional patterns, Ecophysiological adaptations, Epiphytic lichens, Floristic relationship of lichens, Functional adaptation, Habitat conditions, Homoiohydric desert cormophytes, Microclimatic conditions, MorphoIogy, Phanerogams, Photons, Poikilohydric plants, Solar radiation and Vascular plants|
Water content and CO2 exchange of the fruticose lichen TeIoschistes capensis were followed for a measuring period of eight days in the coastal fog zone of the Namib Desert north of Swakopmund, Namibia. Fog, dew, or high vapor pressure of the air alone can provide atmospheric water sources for photosynthetic activity. Through a combination of dew condensation and fog, hydration of the thaIli during the night resulted in predawn dry weight-related water contents of the thalIi greater than 100%.
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