Some indirect effects of air pollution on bark-living invertebrates.

Published online
12 Nov 1970
Content type
Journal article
Journal title
Journal of Applied Ecology

Gilbert, O. L.

Publication language


Describes further study of the ecosystem on the boles of mature, free-standing Fraxinus excelsior trees in three districts in Newcastle upon Tyne, which represent a gradient of increasing SO2 and smoke pollution. [Cf. F.A. 32 No. 2653.] Autotrophs (algae, lichens) were gradually eliminated with increasing pollution, and there was a parallel decline in the number and diversity of herbivores (mainly psocids). Carnivorous and omnivorous insects did not diminish in numbers, because of cross-links with other habitats. KEYWORDS: air pollution \ air pollution \ effects \ vegetation \ plant populations \ air pollution \ gases \ fumes HCl, HF, SO2

Key words