Whats the big deal about invasive Compost Worms, Why its important in Florida to Have a non invasive Compost Worm. If this can happen in Vermont,What can happen in Florida a,(tropical region). The Threat There are no indigenous earthworms in Vermont. Native earthworms became extinct during the last ice age as mile-high glaciers rested on the New England landscape. Generally, earthworms present in agricultural settings are thought to have a positive effect on soil health. However, in the forested ecosystems that developed in the absence of earthworms since the ice age, earthworms alter soil and ecosystem structure. They remove the top, organic soil layer and thus the seed bank and germination medium for many understory plants. As the understory diversity is decreased, deer will begin to consume tree saplings so that at advanced stages of earthworm invasion, the forest understory is absent or depleted or invaded by invasive plants. And, as a result forest regeneration slows or even ceases. As such earthworms should be placed on a par with other forest pests. The reason why this has not happened yet is because earthworms are regarded as positive contributors to ecosystem processes and damage done may not be attributed to earthworms; earthworms do not directly affect tree species but cause damage to silviculture through influencing ecosystem processes; damage does not leave an immediate impression because changes are subtle in the beginning. redwigglersforsale.blogspot/2013/10/invasive-compost-worms.html
Posted on: Sat, 30 Nov 2013 21:41:44 +0000
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