In response to a question raised during my IPC talk on soil, Dan Halsey has confirmed that European earthworms are indeed invasive and damaging to forest eco-systems in North America. To those of us (Europeans) obsessed with worms as an indicator of good soil health, this comes as quite a shock. You can read Dan's enlightening paper on the subject here. Thanks for the submission Dan.
We are no longer updating the Research Digest. All content remains.
The Permaculture Research Digest has summaries of newly published permaculture-related research. All items are
hyper-linked to the original publication.
The 'January 2013' archive contains 60 items published in 2012.
Items marked with a # have restricted public access, although abstracts are freely available.
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