Interactions of the invasive New Zealand Mudsnail (Potamopyrgus antipodarum) and native macroinvertebrates in Polecat Creek, WY
In Polecat Creek, WY, located within the Greater Yellowstone Ecosystem, the invasive New Zealand mudsnail (Potamopyrgus antipodarum) was once recorded at densities of over 500,000 individuals/m2. In recent years, the biomass of P. antipodarum in Polecat Creek has decreased, suggesting a "boom and bust" pattern in population density. The population reached its highest density in 2000-2001, but by 2011, it had decreased by 93%. Native net spinning caddisflies (Hydropsyche spp.) have increased significantly in biomass from 2001-2011, suggesting that the native macroinvertebrates may have increased ...
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