Does the presence of diverse lichen really make a big difference in terms of healthy environments?

Nature Talk
17

47 observations, 48 of which are of lichens, but all but they are all lumped on two days only in two locations. The distribution and timing looks a lot like the sort of assignments given out in field labs in undergrad courses.

It’s not definitive, but it does lend credence to the idea that it’s class related.

And this post is similar, and for the same area:

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