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 | | Lumbricus terrestris, a surface feeder that lives in permanent, vertical burrows, is one of the most active seed dispersal agents among earthworm species and is common in agricultural soils. |
 | | Lumbricus terrestris gathered and buried A. trifida seeds beginning the day seeds were deposited and continuing for several weeks, whereas seeds in worm-free plots became buried more slowly by the physical action of rainfall and soil freezing/thawing. |
 | | One-half of seeds in L. terrestris plots were buried within 2 to 8 days, compared to 47 to 117 days in the absence of L. terrestris, with small seeds being more rapidly buried than large seeds. |
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