Which factors are responsible for the changing lichen floras of London?

SO 2 is no longer the principal factor influencing the vitality and composition of lichen assemblages in London. We provide direct evidence for an impact on lichen growth during episodic high exhaust emissions coupled with unusual climatic conditions. This suggests a combination of particles and nit...

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Bibliographic Details
Published in:Science of the total environment 2003-07, Vol.310 (1), p.179-189
Main Authors: Purvis, O.W., Chimonides, J., Din, V., Erotokritou, L., Jeffries, T., Jones, G.C., Louwhoff, S., Read, H., Spiro, B.
Format: Article
Language:English
Subjects:
Agriculture
Air Pollutants - adverse effects
Air quality
Animal, plant and microbial ecology
Applied ecology
Biological and medical sciences
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on plants and fungi
Floras
Fundamental and applied biological sciences. Psychology
Lichen
Lichens
London
Nitrogen
Nitrogen - adverse effects
Particles
Population Dynamics
Sulfur dioxide
Sulfur Dioxide - adverse effects
Traffic emissions
Vehicle Emissions
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Summary:SO 2 is no longer the principal factor influencing the vitality and composition of lichen assemblages in London. We provide direct evidence for an impact on lichen growth during episodic high exhaust emissions coupled with unusual climatic conditions. This suggests a combination of particles and nitrogen plays a major role in influencing lichen growth. Nitrogen from traffic emissions may be at least as important as agriculture in influencing the composition of lichen assemblages.
ISSN:0048-9697
1879-1026
DOI:10.1016/S0048-9697(02)00638-1