Das Verhalten von Flechten und Moosen unter dem Einfluß einer Schwefeldioxidbegasung

Epiphytic Mosses in the Humid Mountain Forests of the Sierra Madre Oriental, Mexico — Species Richness, Rarity and Composition

“…Other species may indicate specific ecological conditions, such as pH levels in soil and water. Bryophytes are, in general, considered to be just as sensitive to air pollution as lichen (Dässler and Ranft 1969).…”

Some Effects of Sulphur Dioxide Flow on Lichens

“…Experimental studies have shown the measurable effects on lichens of sulphur dioxide at different concentrations (Pearson and Skye, 1965;Showman, 1972;Puckett et ah, 1973;Turk et al, 1974), at different levels of humidity (Rao and LeBlanc, 1966;Margot, 1973) and conditions of pH (Hill, 1971;Baddeley et al, 1971Baddeley et al, , 1972Baddeley et al, , 1973 and other laboratory investigations have indicated the relative sulphur dioxide sensitivity of a wide range of species (Dassler and Ranft, 1969;Bortitz and Ranft, 1972;Ranft and Dassler, 1972). The possible relevance of air speed and airborne pollutants on lichen growth and distribution has already been referred to in the field (Coppins, 1973:126); but there is a need to substantiate field observation with experimental studies.…”

Flechtenwuchs und Luftverunreinigung im Großraum von Saarbrücken

“…KIRSCHBAUM et al 1971, SEITZ 1972. Die Ursache für die Poleophobie der Flechten schien zunächst das "Wüstenklima" der Städte (BESCHEL 1952, RYDZAK 1953 u. a. Autoren) zu sein, nach neuesten experimentellen Untersuchungen -Begasungs und Transplantationsversuchen (SCHÖNBECK 1968, DÄSSLER und RANFT 1969, KLEE 1970 u. a.)…”