Stratospheric ozone, ultraviolet radiation, and cryptogams |
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| Authors: | Lars Olof Björn |
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| Institution: | Lund University, Department of Cell and Organism Biology, Solvegatan 35, SE-223 62 Lund, Sweden |
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| Abstract: | The stratospheric ozone layer, which protects the biosphere from biologically active (mostly harmful) ultraviolet-B (UV-B) solar radiation, thinned during the latter half of the 20th century. In this paper some of the effects of UV-B radiation on cryptogams (cyanobacteria, algae, lichens, mosses, liverworts, pteridophytes and fungi) are reviewed. Effects vary among species, and therefore changes in UV-B radiation may affect species frequencies. Effects also depend on other factors, such as water conditions. |
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| Keywords: | Algae Ferns Fungi Lichens Mosses Nitrogen fixation Ozone depletion UV-B |
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