Article
Bridgehead effect in the worldwide invasion of the biocontrol harlequin ladybird.
PloS one - 17 Mar 2010
Lombaert Eric, Guillemaud Thomas, Cornuet Jean-Marie, Malausa Thibaut, Facon Benoît, Estoup Arnaud
Abstract excerpt
Recent studies of the routes of worldwide introductions of alien organisms suggest that many widespread invasions could have stemmed not from the native range, but from a particularly successful invasive population, which serves as the source of colonists for remote new territories. We call here this phenomenon the invasive bridgehead effect. Evaluating the likelihood of such a scenario is heuristically...
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