Tag: "plots" at biology news
Combining global environmental changes yields surprising ecosystem response
...r of the experiment, plant growth increased in the plots
treated with CO2 alone, as in many other experiments. It also increased in plots
exposed to the other global changes--warming, increased precipitation, and fertilizing with nitrogen...
Outbreak of native oak borers threatens Ozark forests
... Forest land in Arkansas and Oklahoma."Traditional plots
established by the Forest Service for forest healt...nnot capture the extent of the problem because the plots
are too dispersed and not visited frequently enough," said Guldin. "We need an intensive and wide-sc...
INEEL researchers discover that concrete degrades nerve agent and can predict rate of decay
...t data is displayed as a spectra (a bar graph that plots
the number of ions versus their mass) that researchers then use to identify the chemicals. One advantage of INEEL's IT-SIMS is that researchers trap secondary ions and then use precisely chosen electromagnetic frequencies-called tickle voltages-to f...
Planting time for forest trees branches out to new seasons
...ng funded by Boise Cascade Corp. with the research plots
located on industrial tree farms in Louisiana. But...nts is uniformity," Messina added. "Bareroot study plots
will have rows where three or four trees died, one is doing well and one is a runt. The containteriz...
Robots powered by the ocean itself
...s it does so it measures salinity and temperature, plots
currents and eddies, counts microscopic plants, and even records "biological" sounds like whale songs. An earlier battery powered model is used to study coastal waters up to 656 feet in depth for up to 30 days at a time. Webb Research named the glid...
After massive experiment, results favor wildlife corridors
...sed on insect distribution on 20-by-20-square-inch plots
of moss arranged in connected and unconnected patches. The UF-led team sought to increase the scale considerably. The researchers mapped out eight similar sites, each about 158 acres along the South Carolina-Georgia state line. This site, the Savanna...
New Amazon forest monitoring team: RAINFOR
...h data from three clusters of long-term monitoring plots
in the Eastern Amazon near Belem, Santarem and Manaus; in a high rainfall region of the NW Amazon near Iquitos Peru and Ecuador and in the SW Amazon near the base of the Andes. RAINFOR is also identifying other understudied areas of the Amazon basin ...
Ira Rubinoff honored by the Association for Tropical Biology
...orest Science (CTFS), a network of 17 large forest plots
under long term study in 14 tropical countries where researchers currently monitor more than 3,000,000 trees of 6,000 species. This network and the discoveries it will make possible are a testament to Rubinoff's vision and perseverance. For the las...
Trees encroaching grasslands may lock up less carbon than predicted
...e fence. The average precipitation levels at those plots
spanned "the whole range of grasslands in North America," he said, from the edge of the western deserts to the edge of the eastern forests. The group also probed soils more deeply than previous studies have with the aid of a drilling rig than could p...
Genetically modified crops may pass helpful traits to weeds, study finds
...ng the study, the experimental plots
and surrounding areas were sprayed with herbicides meant to kill wild sunflower seedlings. Although the researchers let the sunflowers grow in natural conditions for this study, Bt sunflowe...
The effects of human-caused atmospheric changes on tropical forests
.... Vasquez, and B. Vincenti) of data from permanent plots
in mature forests throughout the tropics. Tree tur...reduced the rainfall reaching the ground in forest plots
in Amazonia by 40%. The growth of smaller trees declined within a few weeks, and their mortality inc...
Ecology and conservation of fragmented tropical forests
...r pastures or exotic tree plantations, to those in plots
surrounded by continuous forest. More than 65% of the species showed significant differences in abundance depending on the surrounding type of land use. Some species persisted better in patches surrounded by plantations than in those surrounded by pa...
New witchweed-fighting method, presented by CIMMYT and Weizmann Institute scientist
...srael--July 1, 2002--Corn harvests on experimental plots
and in farmers' fields in four East and Southern A... herbicide. Witchweed was virtually eliminated in plots
planted with herbicide-coated seeds, as will be shown at the Kisumu meeting. The experiments indica...
Invading species have harder time cracking diverse plant communities
...unities, whether intact areas of native prairie or plots
of land undergoing restoration, will suffer less f...plants of Eurasian origin. They studied 147 square plots
of land, each three meters on a side, at the university's Cedar Creek Natural History Area near the ...
Planning could preserve urban forests for future enjoyment
...isease throughout the United States. Thirty sample plots
were counted for saplings and seedlings in each forest, of which five were burned in Seton Falls Park, 15 were burned in both Turtle Pond and Mishow Marsh watersheds and none were burned in A.B. Williams Woods. Loeb found that sassafras increased de...
Darwin and the worlds first ecological experiment
...eater diversity of grasses planted in experimental plots
was responsible for greater production of plant matter. This subject, the relationship between biodiversity and the functioning of ecosystems, is currently one of the hottest in ecology. But he didn't leave any clues as to where or when this experime...
Where is the world's greatest biodiversity? Smithsonian scientists find the answer is a question of scale
...ta from single-hectare (2.47 acre) tropical forest plots
near the Panama Canal with plots
of the same size in the Yasuni National Park of Ecuador and in Perus Manu Biosphere Reserve. After ...
Diversity of species triumphs
...ctivity might be a "sampling effect"; for example, plots
with more species have a higher chance of containi...e. As the number of species goes up, more and more plots
do better than the single species that does best in monoculture." These results suggest that managed...
Monarch butterflies, corn pollen coexist in cornfields
...ge during summer 2000. The study area comprised 20 plots
in four regions: Minnesota and Wisconsin, Iowa, Maryland, and Ontario. Plots were in cornfields, land adjacent to cornfields or nonagricultural land, all containing milkweeds. Except for one plot each in Maryland and Iowa, cornfields contained nonBt ...
Purple potato boost for organic food industry
...humberland where the variety is being grown. While plots
of most common potato varieties are wilting and disfigured from the effects of being impregnated with seven deadly strains of the fungus which causes blight, the purple newcomer from Hungary is flourishing, with only a few tiny lesions on its healthy...
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