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Why does genetic diversity help honeybee colonies survive?
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colony collapse disorder
A western honeybee (Apis mellifera) forages in Italy.
Genetic diversity is essential for the health and survival of a honeybee colony because it improves overall colony fitness. This diversity is primarily achieved through polyandry, a mating behavior where a queen bee mates with multiple drones.123
By mating with many males, the queen ensures that the colony possesses a wider range of genetic traits. This increased genetic variation leads to several beneficial characteristics that support the colony's stability and growth, including:
- Increased population size: A more diverse genetic pool helps sustain larger numbers of bees.1
- Enhanced foraging activity: Colonies with greater genetic diversity often exhibit more efficient and robust foraging behaviors.1
- Improved food supplies: The combination of these factors results in better resource collection and storage.1
Ultimately, these traits favor the successful production of new queens and the formation of new colonies, which are critical for the long-term propagation and survival of the species.1