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Evaluating the effects of beetle predators on slug population dynamics

Evaluating the effects of beetle predators on slug population dynamics

Bulletin OILB/SROP 28(6): 25-28

Adults of the generalist, predatory carabid beetle, Pterostichus melanarius, have been shown to prey upon slugs in field studies. This interaction between D. reticulatum and P. melanarius is one not well characterised by generalist, opportunistic predation. In locales where slug numbers are high, P. melanarius appears to specialise upon slugs and exert a strong selective pressure. What is not clear is how many slugs are taken and how strong the regulation is in these situations.

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