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Image Subject Name Scientific Name Description
5433076 earthworm damage Sugar maple pre-earthworm infestation shows a layer of leaf litter on the forest floor; When non-native earthworms are introduced into a forest they cause basic changes in the structure, biology, and chemistry of the soil which has adverse effects on many of the native forest species.
5433075 earthworm damage Sugar maple with roots exposed due to earthworm activity which depletes the leaf litter on the forest floor
5433074 earthworm damage Ash tree with roots exposed; earthworm activity depletes the leaf litter on the forest floor

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