Dance breaks down honeybees' cultural barrier

Washington, June 4 : Unlike humans, bees from opposite ends of the Earth can easily communicate with each other, a new study has shown.

The study has found that despite having evolved different forms of communication, the two geographically distant bee species - Asian and European honeybees - can learn to understand one another's dance languages.

The nine species of honeybees found worldwide separated about 30 to 50 million years ago, and subsequently developed different dance 'languages'.

The content of the messages is the same, but the precise encoding of these languages differs between species. ow, a team of international researchers has discovered that the European honeybee Apis mellifera and the Asian honeybee Apis cerana can share information and cooperate to exploit new food sources.

'We know that the members of a honeybee colony routinely exchange information via dance about the location of newly discovered locations, like feeding places, water or new nesting sites," says Dr Shaowu Zhang from the Research School of Biological Sciences at The Australian National University.

"The scouts perform the so-called bee dances inside the nest. The coordinates of distant locations are encoded in the waggle phase of this ballet, with the direction and distance to the food source indicated by the orientation and duration of the dance. This duration differs across honeybee species, even if they fly the same distance in the same environment. It's these differences which we can think of as distinct languages," Zhang said.

The research team is the first to successfully study the behaviour of a colony containing a mixture of two different species of bees.

Zhang said: "The dance language of honeybees is among the best studied communication systems in the animal kingdom. Nevertheless, surprises are still possible, as we have shown.

"This work has potentially major implications for our understanding of animal communication. Next we plan to study exactly to what extent variation is a factor between different bee dance languages."

The study is published in PLoS ONE.

ANI