This was associated with a significantly higher overall abundance and biomass of earthworms in invaded plots (375 individuals m –2, 115 g biomass m –2), compared to the uninvaded control (130 individuals m –2, 45 g biomass m –2), with removal treatments having intermediate values. 20-fold higher (above-ground) litter input than uninvaded ones, as well as lower C:N ratio (17 vs. ![]() Marked differences in litter were observed, however, with invaded areas having c. Modifications in physiochemical properties included lower soil temperatures and higher soil pH during the summer in invaded areas, yet little effect on C and N stocks, or soil moisture. tinctoria with uninvaded semi-natural grasslands, as well as with areas subjected to mechanical removal or herbicide treatment. We compared replicated (n = 5) areas invaded by G. ![]() We assessed the impacts of Gunnera tinctoria invasions on soil and the earthworm community, on Achill Island, Co. Invasive plants often modify soil biotic communities through changes in soil physicochemical characteristics or the amount and/or quality of litter inputs.
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