Tag Archives: meadow

A Changing Landscape

Wormy Matters

Charles Darwin did some of his best work lying on his belly in a grassy meadow. Not daydreaming, but closely observing the lives and work of earthworms. All this lying about eventually lead to the publication of his final book, The Formation of Vegetable Mould through the Action of Worms. Darwin calculated that earthworms brought 18 tons of nutrient-rich castings to the surface per acre per year, in so doing tilling and aerating the soil while rendering the nutrients more accessible for plant use.
I wouldn’t find that many earthworms at work in my own grassy meadow. The last glacier, which receded about 12,000 years ago from the northern parts of the U.S., including here in the Hudson Valley, wiped out all the earthworms. Darwin’s meadow was spared because glaciation didn’t reach as far south as where Darwin’s home eventually stood.

Not that there aren’t now any earthworms here. Mostly, these …

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