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SUMMARY:How floral guides determine flower-visiting behaviour of bees and 
 flies - Prof. Klaus Lunau\, University of Duesseldorf
DTSTART:20160209T130000Z
DTEND:20160209T140000Z
UID:TALK64137@talks.cam.ac.uk
CONTACT:Beverley Glover
DESCRIPTION:Many flowers display a floral colour pattern comprising at lea
 st two components\, a peripheral large area attracting flower visitors fro
 m some distance and a small contrastingly coloured area known as floral gu
 ide. The talk focuses on the comparison of two kinds of floral guides and 
 its key components colour\, size\, shape and gloss. The common yellow and 
 UV-absorbing floral guides of bee-pollinated flowers are mimicking pollen 
 and stamens\, elicit innate responses in bees and hoverflies and impede th
 e discrimination between different flower morphs and flowering phases. Bla
 ckish floral guides have various context-depending functions including red
 uction of floral handling time\, attraction of pollinating beetles and fli
 es by mimicking potential mating partners\, deterrence of gall midges by m
 imicking galls\, signalling of nectar reward\, but mostly unknown.
LOCATION:Large Lecture Theatre\, Department of Plant Sciences
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