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Bees capable of learning feats with tasty prize in sight
Date:3/18/2014

They may have tiny brains, but bumblebees are capable of some remarkable learning feats, especially when they might get a tasty reward, according to two studies by University of Guelph researchers.

PhD student Hamida Mirwan and Prof. Peter Kevan, School of Environmental Sciences, are studying bees' ability to learn by themselves and from each other.

In the first study, published in February in Animal Cognition, the researchers found bees capable of learning to solve increasingly complex problems.

The researchers presented bees with a series of artificial flowers that required ever-more challenging strategies, such as moving objects aside or upwards, to gain a sugar syrup reward.

When inexperienced bees encountered the most complex flower first, they were unable to access the syrup reward and stopped trying. Bees allowed to progress through increasingly complex flowers were able to navigate the most difficult ones.

"Bees with experience are able to solve new problems that they encounter, while bees with no experience just give up," said Mirwan.

She and Kevan consider the study an example of scaffold learning, a concept normally restricted to human psychology in which learners move through increasingly complex steps.

In a second study recently published in Psyche, the researchers found bees learned by watching and communicating with other bees, a process called social learning.

Mirwan made artificial flowers requiring the bees to walk on the underside of a disk to get a sugar syrup reward. These experienced bees foraged on the artificial flowers for several days until they became accustomed to feeding at them.

To see whether other bees could learn from the experienced foragers, Mirwan confined inexperienced bees in a mesh container near the artificial flowers where they could observe the experienced bees. When the nave bees were allowed to forage on the artificial flowers, the
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Contact: Peter Kevan
pkevan@uoguelph.ca
519-824-4120 x52479
University of Guelph
Source:Eurekalert

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