Access to maps of biotech crops on a county and township level will give researchers greater ability to analyze the effects of biotech crops on wildlife, water quality, and on pest and beneficial insects.
"Since 1996 more than a billion acres have been planted with biotech crops in the U.S.," said Michelle Marvier of Santa Clara University in Calif. "We don't really know what are the pros and cons of this important new agricultural technology."
"People on both sides of the debate about genetically engineered crops have been making a lot of claims," said Marvier, an associate professor of biology and environmental studies. "One side has been saying that biotech crops reduce insecticide use, reduce tillage and therefore the erosion of top soil. People on the other side say that biotech crops could hurt native species."
The scientists' call will be published as a Policy Forum in the April 25, 2008, issue of the journal Science. Marvier's co-authors are Yves Carrière and Bruce Tabashnik of The University of Arizona in Tucson; Norman Ellstrand of the University of California at Riverside; Paul Gepts of the University of California at Davis; Peter Kareiva of Santa Clara University and The Nature Conservancy; Emma Rosi-Marshall of Loyola University in Chicago; and L. LaReesa Wolfenbarger of the University of Nebraska in Omaha.
The article, Harvesting Data from Genetically Engineered Crops, has a map showing the distribution of crop fields in Arizona township by township.
Tabashnik, UA professor of entomology and head of the department, said, "Putting Arizona's biotech cotton on the map has allowed us to be a leader in assessing the environmental impacts of biotech crops."
The collaboration has been going on more than a decade.
Tabashnik said, "It's a win-win situation. We analyze data they collect, so they can control pests better and make more money. It helps us obtain fundamental information about what's going on in the field that we could never get without them."
One of the UA's analyses showed that adoption of biotech cotton in Arizona helped to reduce insecticide use while sustaining yields.
Carrière, a UA professor of entomology who has done many of the analyses, said, "You have to protect the privacy of the farmers. We've done it in Arizona, so why not do it across the country?"
To start examining those questions in other parts of the U.S., the team of scientists calls for the government to make available data it is already collecting.
At the present time, the team writes, the U.S. Department of Agriculture collects data at the scale of individual farms, but the data are only available to researchers at the scale of entire states. Answering key questions about the environmental impacts of genetically engineered crops requires finer spatial resolution.
"The analyses could be about quality of water, quality of soil, non-target effects, regional population density of pests and economic aspects such as yield improvement," Carrière said. "The findings could be useful to a wide range of people."
The U.S. Department of Agriculture's National Agricultural Statistical Service annually collects data documenting acreage planted to various crops in all 50 states, the researchers write in their paper. In addition, the NASS annually interviews more than 125,000 farmers about their land use and the acreage planted in various biotech crops.
Tabashnik said, "We're already spending the money to have these data collected. Let's make them available in the right format for researchers to use. It would be a relatively inexpensive additional step with enormous scientific and public benefit."Lead author:
Mari N. Jensen | The University of Arizona
Plasma-zapping process could yield trans fat-free soybean oil product
02.12.2016 | Purdue University
New findings about the deformed wing virus, a major factor in honey bee colony mortality
11.11.2016 | Veterinärmedizinische Universität Wien
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).
Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...
Many pathogens use certain sugar compounds from their host to help conceal themselves against the immune system. Scientists at the University of Bonn have now, in cooperation with researchers at the University of York in the United Kingdom, analyzed the dynamics of a bacterial molecule that is involved in this process. They demonstrate that the protein grabs onto the sugar molecule with a Pac Man-like chewing motion and holds it until it can be used. Their results could help design therapeutics that could make the protein poorer at grabbing and holding and hence compromise the pathogen in the host. The study has now been published in “Biophysical Journal”.
The cells of the mouth, nose and intestinal mucosa produce large quantities of a chemical called sialic acid. Many bacteria possess a special transport system...
UMD, NOAA collaboration demonstrates suitability of in-orbit datasets for weather satellite calibration
"Traffic and weather, together on the hour!" blasts your local radio station, while your smartphone knows the weather halfway across the world. A network of...
Fiber-reinforced plastics (FRP) are frequently used in the aeronautic and automobile industry. However, the repair of workpieces made of these composite materials is often less profitable than exchanging the part. In order to increase the lifetime of FRP parts and to make them more eco-efficient, the Laser Zentrum Hannover e.V. (LZH) and the Apodius GmbH want to combine a new measuring device for fiber layer orientation with an innovative laser-based repair process.
Defects in FRP pieces may be production or operation-related. Whether or not repair is cost-effective depends on the geometry of the defective area, the tools...
10.01.2017 | Event News
09.01.2017 | Event News
05.01.2017 | Event News
16.01.2017 | Power and Electrical Engineering
16.01.2017 | Information Technology
16.01.2017 | Power and Electrical Engineering