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Friday, July 4, 2014

Odours can keep insects from finding flowers

6 June 2014 

Odours can keep insects from finding flowers 

By Zoe Gough
Reporter, BBC Nature

Manduca sexta Tobacco hornworm moths need to be accurate navigators because the calories from one feed allow them to fly for only 15 minutes

Insects find locating their favourite flowers more difficult when pollution and other odours get in the way, new research has shown.

Tobacco hornworm moths feed on the nectar of plants which can grow hundreds of metres apart.

Researchers found the moths tracked the flower's scent better in clean air, when other smells were not present.

They discovered the other odours changed how the moth's brain processed the plant's scent. (...)

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