Les colonies de guêpes sans reine s'appuient sur des aides cachées en période de chaos

26 mai 2026

Rapporté par l'IA

Lorsqu'une guêpe reine disparaît, sa colonie tropicale sombre dans des luttes de pouvoir violentes. De nouvelles recherches montrent que certaines femelles évitent ces combats pour maintenir des tâches essentielles et empêcher l'effondrement de la colonie.

Des chercheurs de l'University College London ont étudié des colonies de guêpes polistes tropicales, Polistes canadensis, au Panama. Ils ont retiré les reines de groupes établis et ont observé une compétition agressive immédiate entre les femelles pour la domination. L'ordre social habituel s'est rapidement effondré alors que plusieurs guêpes se disputaient la position dominante.

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lundi 08 juin 2026 05h04