%0 Generic %D 2007 %T Diversity and sensitivity of epiphytes to oxides of nitrogen in London %A Davies, L. %A Bates, J.W. %A Bell, J.N.B. %A James, P.W. %A Purvis, O.W. %X 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. %B Environmental Pollution %V 146 %P 299-310 %0 Book %B Air Pollution and Plant Life %D 2002 %T Effects of oxidants at the biochemical, cell, and physiological levels, with particular reference to ozone %A Long, S.P. %A Naidu, S.L. %E Bell, J.N.B. %E M. Treshow %B Air Pollution and Plant Life %I John Wiley and Sons Ltd. %P pp 69-88 %0 Book %B Air Pollution and Plant Life %D 2002 %T Effects of oxidants at the whole plant and community level %A Ashmore, M.R. %E Bell, J.N.B. %E M. Treshow %B Air Pollution and Plant Life %I John Wiley and Sons Ltd. %P pp 89-118 %0 Generic %D 1993 %T Atmospheric Change - Effect on Plant Pests and Diseases %A Bell, J.N.B. %A McNeill, S. %A Houlden, G. %A Brown, V.C. %A Mansfield, P.J. %B Parasitology %V 106 %P S11-S24 %0 Book Section %B Bryophytes and lichens in a changing environment %D 1992 %T Ecophysiological effects of acid rain on bryophytes and lichens %A Farmer, A.M. %A Bates, J.W. %A Bell, J.N.B. %A Bates, J.W. (Eds) %A Farmer, A.M. (Eds) %B Bryophytes and lichens in a changing environment %I Clarendon Press %C Oxford %0 Generic %D 1991 %T Comparisons of 3 Woodland Sites in NW Britain Differing in Richness of the Epiphytic Lobarion-Pulmonariae Community and Levels of Wet Acidic Deposition %A Farmer, A.M. %A Bates, J.W. %A Bell, J.N.B. %B . Holarctic Ecology %V 14 %P 85-91 %0 Generic %D 1991 %T Effects of sulphur dioxide on the development of fungal diseases of winter barley in an open-air fumigation system. %A Mansfield, P.J. %A Bell, J.N.B. %A McLeod, A.R. %A Wheeler, B.E.J. %B Agriculture, Ecosystems and Environment %V 33 %P 215-232 %G eng %0 Generic %D 1991 %T Seasonal variations in acidic pollutant inputs and their effects on the chemistry of stemflow, bark and epiphyte tissues in three oak woodlands in N.W. Britain %A Farmer, A.M. %A Bell, J.N.B. %A Bates, J.W. %B New Phytologist %V 118 %P 441-451 %0 Generic %D 1990 %T Air pollution and agricultural aphid pests. I: Fumigation experiments with SO2 and NO2. %A Houlden, G. %A McNeill, S. %A Aminu-Kano, M. %A Bell, J.N.B. %B Environmental Pollution %V 67 %P 305-314 %G eng %0 Generic %D 1990 %T Air Pollution and Agricultural Aphid Pests. I: Fumigation Experiments with SO2 and NO2. %A Houlden, G. %A McNeill, S. %A Aminu-Kano, M. %A Bell, J.N.B. %B Environmental Pollution %V 67 %P 305-314 %G eng %0 Generic %D 1990 %T Epiphyte recolonization of oaks along a gradient of air pollution in south-east England, 1979-1990. %A Bates, J.W. %A Farmer, A.M. %A Bell, J.N.B. %B Environmental Pollution %V 68 %P 81-99 %0 Report %D 1986 %T Air pollution injury to vegetation %A Taylor, H. J. %A Ashmore, M.R. %A Bell, J.N.B. %I IEHO %C Chadwick House, London %0 Generic %D 1984 %T Air pollution increases Aphis fabae pest potential %A Dohmen, G.P. %A McNeill, S. %A Bell, J.N.B. %B Nature %V 307 %P 52-53 %0 Generic %D 1981 %T Studies on the tolerance of SO2 of grass populations in polluted areas - I %A Ayazloo, M. %A Bell, J.N.B. %B Identification of tolerant populations. New Phytologist %V 88 %P 203-222 %0 Generic %D 1979 %T Studies on the effects of low levels of sulphur dioxide on the growth of Lolium Perenne L. %A Bell, J.N.B. %A Rutter, A.J. %A Relton, J. %B New Phytologist %V 83 %P 627-643 %G eng %0 Generic %D 1978 %T Effects of sulphur pollutants on the growth of Sphagnum species. %A Ferguson, N.P. %A Lee, J.A. %A Bell, J.N.B. %B Environmental Pollution %V 16 %P 151-162 %0 Journal Article %J Nature %D 1978 %T Survey of ozone levels in British Isles using indicator plants %A Ashmore, M.R. %A Bell, J.N.B. %A Reily, C.L. %B Nature %V 276(5690) %P 813-815