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jpe2208-sup-0001-FigureS1.docWord document162KFig. S1. Measuring lichen cover and species richness using circles.
jpe2208-sup-0002-FigureS2.docWord document241KFig. S2. Boxplots of lichen species richness and percentage cover on the most commonly surveyed tree species.
jpe2208-sup-0003-FigureS3.docWord document358KFig. S3. Correlations between predictor variables at multiple spatial extents and response variables, used to determine the scale of effect for each predictor–response pair.
jpe2208-sup-0004-TableS1.docWord document155KTable S1. Comparison of all seven possible models of lichen cover predicted by standardized vehicle pollution, moisture and treed area analysed separately for common and rare species.

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