Invasive alien predator causes rapid declines of European ladybugs

A new study provides compelling evidence that the arrival of the invasive non-native harlequin ladybird (ladybug) to mainland Europe and subsequent spread has led to a rapid decline in historically-widespread species of ladybird in Britain, Belgium and Switzerland. The analysis is further evidence that harlequin ladybirds are displacing some native ladybirds, most probably through predation and competition.

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