@AnnaRoylston @FafaA63 Source: Bridgehead Effect in the Worldwide Invasion of the Biocontrol Harlequin Ladybird, 2010 https://t.co/reZHageZ8f
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@_208_ @AnnaRoylston @FafaA63 Effectivement, j'ai lu l'étude citée. Il y a bien 2 provenances différentes, souches INRA pour l'agroecologie et souche USA sauvage. Il y a un mélange génétique fort entre les deux estimé à 43%, 95%CI : [18%-83%], le reste ét
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It is called the bridgehead effect on invasions - also clearly relevant to forest and tree pest invasions https://t.co/PDhUWnBSqM
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The term "invasive bridgehead effect" was coined by Lombaert et al 2010 https://t.co/3iFyv7Qlwn for an introduced population that suddenly becomes invasive after undergoing an evolutionary shift that renders it a source (bridgehead) of colonists for new in