Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Had your morning coffee? Thank a killer bee

13.06.2002


Smithsonian scientist shows pollination by exotic honeybees increases coffee crop yields by more than 50 percent



Debunking the widely held belief that the self-pollinating shrub that produces the popular Arabica coffee bean has no use for insects, David W. Roubik of the Smithsonian Tropical Research Institute (STRI) in Panama has demonstrated that pollination – particularly by naturalized, non-native African honeybees – dramatically boosts the yield from shade-grown coffee plants.

The results of Roubik’s research in Panama over the past five years, with comparisons to data from 15 countries in the New World and 15 in the Old World, are reported in tomorrow’s issue of the journal Nature. They emphasize the importance of shade-grown coffee – not only to improve the flavor of the beverage, but also to maintain the habitat for naturalized honeybees and other pollinators.


African honeybees took up residence in western Panama in 1985, according to Roubik; shortly thereafter, they were the major pollinators of coffee growing near forests at 1,500 meters (4,921 feet) above sea level. To test the idea suggested by his first work in 1997 – that maximum yield occurs at young coffee shrubs near forest – Roubik studied 50, two-year-old plants in Panama in 2001, keeping the pollinators away from a control branch on each plant by bagging them with fine mesh. In both studies, he found the flowers visited by pollinators produced significantly heavier, more abundant fruit. Conversely, in several countries where the areas of high-density coffee cultivation have increased two- to five-fold in the last 41 years, coffee yield has decreased by 20- to 50 percent. Roubik concluded that he loss of pollinators clearly is implicated in this decline, which strongly suggests that sustained, aggressive cultivation is detrimental, since it removes their natural habitat.

“You probably don’t realize that part of your daily routine involves bees,” said Roubik, adding, “I say this because, from what I see going on in the Neotropics, the work of two or three dozen wild African honey bees is in every cup of coffee that you drink"

Elizabeth Tait | EurekAlert

More articles from Agricultural and Forestry Science:

nachricht Kakao in Monokultur verträgt Trockenheit besser als Kakao in Mischsystemen
18.09.2017 | Georg-August-Universität Göttingen

nachricht Ultrasound sensors make forage harvesters more reliable
28.08.2017 | Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren IZFP

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Tiny lasers from a gallery of whispers

New technique promises tunable laser devices

Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...

Im Focus: Ultrafast snapshots of relaxing electrons in solids

Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!

When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...

Im Focus: Quantum Sensors Decipher Magnetic Ordering in a New Semiconducting Material

For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.

Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...

Im Focus: Fast, convenient & standardized: New lab innovation for automated tissue engineering & drug

MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems Holding GmbH about commercial use of a multi-well tissue plate for automated and reliable tissue engineering & drug testing.

MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems...

Im Focus: Silencing bacteria

HZI researchers pave the way for new agents that render hospital pathogens mute

Pathogenic bacteria are becoming resistant to common antibiotics to an ever increasing degree. One of the most difficult germs is Pseudomonas aeruginosa, a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

“Lasers in Composites Symposium” in Aachen – from Science to Application

19.09.2017 | Event News

I-ESA 2018 – Call for Papers

12.09.2017 | Event News

EMBO at Basel Life, a new conference on current and emerging life science research

06.09.2017 | Event News

 
Latest News

Molecular Force Sensors

20.09.2017 | Life Sciences

Producing electricity during flight

20.09.2017 | Power and Electrical Engineering

Tiny lasers from a gallery of whispers

20.09.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>