medium · Act reading
For decades, ecologists assumed that a forest's downed, rotting logs were merely waste—the leftover debris of trees that had finished their useful lives. More recent fieldwork has overturned that view. A fallen log, it turns out, becomes a slow-release reservoir of moisture and nutrients, a nursery where seedlings take root in soil too poor to support them elsewhere, and a corridor along which insects, fungi, and small mammals travel. Far from marking an ending, the collapse of a great tree initiates a second, quieter phase of its contribution to the forest. The author includes the list of functions performed by a fallen log (moisture reservoir, seedling nursery, and travel corridor) mainly to:
- catalog the many species that depend on forests for their survival.
- support the claim that a downed log remains ecologically valuable.
- suggest that ecologists today still underestimate rotting wood.
- contrast healthy living trees with trees that have already fallen.
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