[AlanS]

Why just England?

Actually I see the results map does include a few returns from Wales and Scotland, but it seems a pity to discourage such returns.

Here in Scotland I was out with a student field trip yesterday, and I pointed out the Opal survey nitrophilous species on riverside trees bordering farmland, and then, up a valley just a few miles away, the sensitive species. We are returning to these sites again soon and I might get the students to complete a survey if time allows (a big 'if), even if Scottish results are not really wanted.

Gotta wonder whether Flavoparmelia was a good choice for this, though. Fine is there was only F. caperata to consider, but since the very similar F. soredians is spreading rapidly and may well be more ammonia tolerant, it could muddy the results.

I note that early returns also may well be strongly biased by the urban locations of schools, but maybe this is where (English) WAB members can help?

Alan