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Lichen Recolonization Following Air Quality Improvement
Ray E. Showman
Vol. 84, No. 4 (Winter, 1981), pp. 492-497
Published by: American Bryological and Lichenological Society
Stable URL: http://www.jstor.org/stable/3242556
Page Count: 6
You can always find the topics here!Topics: Lichens, Air quality, Air pollution, Thallus, Bryology, Environmental pollution, Annuals, Species
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Air quality improvement near a coal-fired power plant led to recolonization of Parmelia caperata (L.) Ach. in a pollution-induced void area. Recolonization was first observed about four years after pollution abatement. Least-affected sites, i.e. near the edge of the original void, were first to recover while most-affected sites were slowest to recover. After eight years of improved air quality, the distribution of P. caperata has returned to near normal. Lichen bio-monitoring is useful not only to detect the effects of poor air quality but to document air quality improvement as well.
The Bryologist © 1981 American Bryological and Lichenological Society