You cannot spend time in a redwood forest without coming across lichen. Only a few lichen species will catch your eye on the bark of a redwood but up in the canopy and on the forest floor an abundance of these organisms will surround you. A few years ago we conducted canopy research at Muir Woods looking at lichen diversity at the tops of the trees.
Redwoods are in the news this week, reminding the world once again that Earth’s tallest trees are truly ecosystems in their own right. Teeming with life from quite literally their roots to their highest leaves, the magnificent coast redwoods are home to hundreds of other species.
Lichens contribute such beautiful colors to our redwood forests, growing elegantly on trees, fallen logs, and rocks. Each lichen you see is actually a symbiotic partnership — algae or cyanobacteria wrapped up in a fungal package. Thanks to canopy biologists Rikke Reese Næsborg, Cameron Williams, Marie Antoine, and …
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