By Paul F. Hendrix (auth.), Paul F. Hendrit (eds.)
The so much conspicuous organic invasions in terrestrial ecosystems were by means of unique vegetation, bugs and vertebrates. much less conspicuous yet most likely of equivalent value are invasions by way of soil invertebrates, that are happening actually underneath our ft. accepted examples comprise the South American fireplace ant (Solenopsis invicta) which has invaded North the United States and Australia, and the hot Zealand flatworm (Arthurdendyus triangulatus) which has develop into widely used within the uk; either have brought on significant ecological and monetary harm. there's now facts that unique earthworm invasions are expanding world-wide and should be having major affects on soil methods and plant groups in a few areas. a lot continues to be realized approximately those ‘cryptic’ organic invasions. The papers during this e-book are in keeping with efforts via a global team of soil ecologists to evaluate the organic and ecological mechanisms of earthworm invasions, their geographic quantity and affects on terrestrial ecosystems, and attainable capability wherein earthworm invasions should be mitigated.
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Extra resources for Biological Invasions Belowground: Earthworms as Invasive Species
Michigan dune complex; Nordstro¨m and Rundgren 1974; Staaf 1987; Pop 1997). However, in areas that have been colonized by exotic earthworms, the population size and species composition of earthworm communities will ultimately be dependent upon soil texture, pH, moisture, and the palatability and quantity of litter (Nordstro¨m and Rundgren 1974; Staaf 1987; Judas 1990; Ponge and Delhaye 1995; Lavelle 1997; Pop 1997; Bohlen et al. 2004a). Spruce and pine forests with less palatable litter over sandy, acidic soils will likely have the lowest earthworm biomass and species richness (D.
Changes in soil structure and chemistry and grazing by earthworms lead to changes in the abundance and structure of soil fungal communities (Johnson et al. 1992; McLean and Parkinson 1998b, 2000). The vast majority of native understory plants in northern temperate sugar maple dominated forests are strongly mycorrhizal (Brundrett and Kendrick 1988), and declines in abundance or colonization rates of mycorrhizal fungi or shifts in fungal community composition could lead to changes in the understory plant community.
2003). Plants that are non-mycorrhizal and have an extended root growth period may be favored following earthworm invasion. In western Great Lakes hardwood forests, Carex pensylvanica increases dramatically following earthworm invasion. It is one of the only non-mycorrhizal native species in these forests and has the ability to produce roots during relatively cold periods of spring and fall (Brundrett and Kendrick 1988). Such soil inﬂuences on plant species abundance and diversity have been suggested (Newman and Reddell 1988; Francis and Read 1994; van der Heijden et al.
Biological Invasions Belowground: Earthworms as Invasive Species by Paul F. Hendrix (auth.), Paul F. Hendrit (eds.)