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 Energy crop production on conservation lands may not boost greenhouse gases
13.03.2017 | Penn State

nachricht How nature creates forest diversity
07.03.2017 | International Institute for Applied Systems Analysis (IIASA)

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: A Challenging European Research Project to Develop New Tiny Microscopes

The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.

To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Researchers shoot for success with simulations of laser pulse-material interactions

29.03.2017 | Materials Sciences

Igniting a solar flare in the corona with lower-atmosphere kindling

29.03.2017 | Physics and Astronomy

As sea level rises, much of Honolulu and Waikiki vulnerable to groundwater inundation

29.03.2017 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>