video Eurozone
Caffeine exposure leaves bees buzzing
Tuesday, November 17, 2015 - 01:46
Plants are tricking honey bees into pollinating their flowers by producing caffeine, successfully fooling the flying insects into repeatedly returning, even if their nectar is of poor quality. Jim Drury reports.
▲ Hide Transcript
▶ View Transcript
Many of us need a strong coffee in the morning to get going.....it seems the humble honey bee also finds caffeine compelling. University of Sussex researchers believe plants produce caffeine in their nectar to fool bees into thinking it contains more sugar than it does. The insects will repeatedly visit those flowers, helping the plants maximise pollination. Two false flowers were set up - both containing sucrose and water, but one with caffeine as well. ID numbers were glued on to those bees exposed to caffeine. The bees were then sent back to the hive. SOUNDBITE (English) FRANCIS RATNIEKS, PROFESSOR OF APICULTURE AT THE UNIVERSITY OF SUSSEX, SAYING: "What we found was that caffeine would have the effect of more sugar.....and the one that did have caffeine attracted more bees, but in particular the bees who were foraging made more dances, about four times as many dances." The bees' waggle dance influences the behaviour of others in the hive. Many bees were directed to revisit sites where caffeinated nectar was previously found, even after the feeder ran dry. The team thinks plants may be lacing their nectar so they can pass off sub-standard forage. SOUNDBITE (English) FRANCIS RATNIEKS, PROFESSOR OF APICULTURE AT THE UNIVERSITY OF SUSSEX, SAYING: "What the caffeine is doing is the plant manipulating the bee in a way that is good for the plant, but not so good for the bee because the bee is kind of being tricked into thinking that the nectar is of a higher quality - that is it has more sugar than it really does." It's a reminder that, although mutually dependent, the interests of plants and pollinators can conflict. By giving the honey bees a caffeine buzz, it seems that plants are leading them a merry dance.
Press CTRL+C (Windows), CMD+C (Mac), or long-press the URL below on your mobile device to copy the code
Caffeine exposure leaves bees buzzing
Tuesday, November 17, 2015 - 01:46
Top News »
Sat, Apr 21, 2018 - (0:32)
Sat, Apr 21, 2018 - (0:44)
Sat, Apr 21, 2018 - (1:18)
Sat, Apr 21, 2018 - (2:00)
Sat, Apr 21, 2018 - (1:58)
Sat, Apr 21, 2018 - (1:03)
Sat, Apr 21, 2018 - (1:03)
Sat, Apr 21, 2018 - (1:22)
Fri, Apr 20, 2018 - (1:31)
Fri, Apr 20, 2018 - (1:34)
Fri, Apr 20, 2018 - (1:46)
Fri, Apr 20, 2018 - (1:01)
Migrant Crisis »
Fri, Mar 16, 2018 - (0:50)
Fri, Dec 22, 2017 - (1:52)
Fri, Dec 22, 2017 - (1:07)
Fri, Dec 22, 2017 - (1:37)
Editors' Picks »
Fri, Apr 20, 2018 - (1:24)
Fri, Apr 20, 2018 - (2:04)
Thu, Apr 19, 2018 - (0:57)
Thu, Apr 19, 2018 - (1:45)
Tue, Apr 17, 2018 - (2:44)
Tue, Apr 17, 2018 - (2:15)
Mon, Apr 16, 2018 - (1:59)
Fri, Apr 13, 2018 - (1:09)
Fri, Apr 13, 2018 - (2:15)
Fri, Apr 13, 2018 - (1:40)
Politics »
Fri, Apr 20, 2018 - (1:07)
Fri, Apr 20, 2018 - (1:46)
Thu, Apr 19, 2018 - (2:16)
Thu, Apr 19, 2018 - (1:32)
Thu, Apr 19, 2018 - (1:00)
Thu, Apr 19, 2018 - (0:32)
Thu, Apr 19, 2018 - (1:37)
Wed, Apr 18, 2018 - (0:58)
Wed, Apr 18, 2018 - (0:35)
Wed, Apr 18, 2018 - (0:45)
Innovations »
4:41am EDT - (1:30)
Fri, Apr 20, 2018 - (1:50)
Thu, Apr 19, 2018 - (1:54)
Wed, Apr 18, 2018 - (1:03)
Wed, Apr 18, 2018 - (1:01)
Tue, Apr 17, 2018 - (2:15)
Mon, Apr 16, 2018 - (1:54)
Mon, Apr 16, 2018 - (0:50)
Fri, Apr 13, 2018 - (2:15)
Thu, Apr 12, 2018 - (1:41)
Entertainment »
Sat, Apr 21, 2018 - (0:32)
Fri, Apr 20, 2018 - (1:24)
Fri, Apr 20, 2018 - (1:47)
Fri, Apr 20, 2018 - (0:59)
Fri, Apr 20, 2018 - (0:46)
Fri, Apr 20, 2018 - (1:31)
Fri, Apr 20, 2018 - (2:10)
Fri, Apr 20, 2018 - (0:49)
Thu, Apr 19, 2018 - (1:19)
Thu, Apr 19, 2018 - (1:27)
Thu, Apr 19, 2018 - (1:28)
Rough Cuts »
Fri, Apr 20, 2018 - (0:57)
Fri, Apr 20, 2018 - (0:43)
Thu, Apr 19, 2018 - (0:54)
Thu, Apr 19, 2018 - (0:55)
Thu, Apr 19, 2018 - (2:09)
Thu, Apr 19, 2018 - (1:22)
Thu, Apr 19, 2018 - (2:22)
Thu, Apr 19, 2018 - (0:32)
Thu, Apr 19, 2018 - (1:31)
Thu, Apr 19, 2018 - (1:36)
Wed, Apr 18, 2018 - (0:58)
Wed, Apr 18, 2018 - (1:37)
Moving Pictures »
Tue, Apr 03, 2018 - (1:46)
Fri, Mar 02, 2018 - (2:13)
Thu, Feb 08, 2018 - (1:43)
Thu, Jan 04, 2018 - (1:01)
Fri, Dec 22, 2017 - (2:08)
Reuters Investigates »
Wed, Oct 11, 2017 - (10:18)
Wed, Aug 23, 2017 - (6:44)
Thu, Mar 16, 2017 - (2:26)
Tue, Nov 01, 2016 - (2:15)
Thu, Sep 29, 2016 - (2:19)
Fri, Aug 05, 2016 - (2:04)
Mon, Mar 28, 2016 - (3:02)
Thu, Mar 10, 2016 - (2:34)
Mon, Dec 07, 2015 - (2:58)
Mon, Dec 07, 2015 - (2:20)
Mon, Dec 07, 2015 - (0:35)
Mon, Dec 07, 2015 - (3:53)
Dateline Asia »
Tue, Dec 05, 2017 - (2:06)
Tue, Dec 05, 2017 - (2:11)
Fri, Dec 01, 2017 - (2:04)
Thu, Nov 30, 2017 - (2:10)
Thu, Nov 30, 2017 - (2:14)
Wed, Nov 29, 2017 - (2:11)
Tue, Nov 28, 2017 - (1:55)
Tue, Nov 28, 2017 - (2:21)
Mon, Nov 27, 2017 - (2:25)
Fri, Nov 24, 2017 - (2:16)
Fri, Nov 24, 2017 - (2:14)
Thu, Nov 23, 2017 - (2:18)