| Literature DB >> 16777294 |
L Davies1, J W Bates, J N B Bell, P W James, O W Purvis.
Abstract
This study investigated the distribution and diversity of epiphytes in London in relation to NO(x) using fine-scale atmospheric dispersion modelling. The survey recorded over 3000 epiphytes from 334 trees (Fraxinus excelsior) representing 74 lichen, 14 moss, 7 fungal and 3 algal species. There was a significant inverse relationship between diversity and NO(x). Diversity declined where NO(x) exceeded 70 microg m(-3) and NO2 exceeded 40 microg m(-3), suggesting a phytotoxic effect. However, there was a significant positive relationship between NO(x) and lichen abundance due to the ubiquitous distribution of pollution tolerant species, mainly associated with eutrophication. A scale of lichen sensitivity to NO(x) has been derived.Entities:
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Year: 2006 PMID： 16777294 DOI： 10.1016/j.envpol.2006.03.023
Source DB: PubMed Journal: Environ Pollut ISSN： 0269-7491 Impact factor: 8.071