Accueil > Communication > Newsletter scientifique > Articles de presse > Sciences

Rapid behavioral maturation accelerates failure of stressed honey bee colonies [PNAS]

par Frédéric Magné - publié le , mis à jour le

Honey bee colony death rates are unsustainably high. While many stressors have been identified that contribute to this problem, we do not know why colonies transition so rapidly from a state of apparent health to failure. It is well known that individual bees react to nutritional and pathogen stresses by foraging precociously : our study explains how colony failure arises from the social responses of individual bees to stress. We used radio tracking to monitor performance of bees and found that workers who begin foraging prematurely perform very poorly. This compounds the stresses on the colony and accelerates failure. We suggest how colonies at risk can be identified early, and the most effective interventions to prevent failure.

Voir en ligne :