Testing field methods to assess interactions between native caddisflies and the invasive New Zealand mudsnail (Potamopyrgus antipodarum)
In Polecat Creek, WY, located in the Greater Yellowstone ecosystem, the invasive New Zealand mudsnail (Potamopyrgus antipodarum) has been found to reach densities exceeding 500,000 individuals/m². This extremely high density of P. antipodarum has been observed to consume much of the gross primary production and has a negative impact on native macroinvertebrates such as the Hydropsyche caddisfly. The current population of P. antipodarum in Polecat Creek has declined suggesting the population "boomed and busted"; it was observed in data collected in 2000-2001 that there was a "boom" period of P. ...
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