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Tag: "dry" at biology news

Past droughts geographically widespread in the West, according to tree-ring data

When it's dry, it's dry all over, according to a new analysis of more than...rsheds have experienced both record wet and record dry episodes. The findings of the second phase will likely be available in the summer of 2007. Key proj...

Study uncovers dirty little secret: Soil emissions are much-bigger-than-expected component of air pollution

...When the rains come to the Sahel after a six-month dry season, dormant soil bacteria reawaken and begin p...e expected," she said. "The biggest areas were the dry topical regions like the Sahel, and in the mid-latitude regions where there is a lot of agriculture....

Locusts' built-in 'surface analysis' ability directs them to fly overland

..." The sea reflects polarized light much more than dry land (which reflects mainly diffused, non-polarized light), enabling a distinction to be made between the two. "When the locusts are presented with a situation of choice between surfaces reflecting either polarized or diffused light, they exercise th...

Trio of plant genes prevent 'too many mouths'

...rning ?both key to plants being able to survive on dry land ?are using the same signaling components," says Jessica McAbee, a University of Washington research associate in biology. She's one co-author of a report in the July 8 issue of Science about work with Arabidopsis, a weed-like member of the cruci...

Green diesel: New process makes liquid transportation fuel from plants

...ydrates to store energy." About 75 percent of the dry weight of herbaceous and woody biomass is comprised of carbohydrates. Because the UW-Madison process works with a range of carbohydrates, a wide range of plants, and more parts of the plant, can be consumed to make fuel. "The current delivered cost ...

Acid water in East Java threatens biodiversity and local welfare

...iver at various locations. She determined the loss dry matter over a period of several months. Solution According to Lohr, one possible solution for the acidification problem is simply to prevent the crater water from mixing with both neutral rivers. She believes that this could be realised by chann...

Freeze-dried mats of microbes awaken in Antarctic streambed

An experiment in a dry Antarctic stream channel has shown that a carpet o...tive streambed in the McMurdo Dry Valleys into the dry streambed, she said. A time series of aerial photographs, coupled with carbon isotope analyses of th...

Hurricane aftermath: Infectious disease threats from common, not exotic, diseases

... excess moisture, and much will need to be done to dry out New Orleans and clean up mold growth. Some environmental molds can cause allergic reactions. ...

Fluoride poisoning in China due to clay, not coal

...large blocks of coal. The combined fuel is used to dry corn before storing it. Corn, however, absorbs more smoke than other grains, such as rice or wheat. Zheng's team found that only 15 per cent of the fluoride released when the coal and clay mixture is burnt comes from the coal. The fluoride that con...

New technology shows our ancestors ate…everything!

...d during the wet season," Teaford added. "But come dry season, they may have to process something very hard or tough in order to survive." "For years, it's been a dream of many researchers interested in our lineage to obtain this kind of information," continued Teaford. "And the computer software is phe...

NCAR analysis shows widespread pollution from 2004 wildfires

...mer of 2004, largely because of unusually warm and dry weather. To quantify carbon monoxide emissions from the fires, the research team used a remote sensing instrument known as MOPITT (Measurements of Pollution in the Troposphere) that is operated by NCAR and the University of Toronto and flown on NASA'...

Tropical dry forests receive international recognition

...y are not the only kind under threat--the tropical dry forest is in as much danger as its popular cousin ...y formed TROPI-DRY, a research network on tropical dry forests housed in the Faculty of Science. The Inter American Institute for Global Change Research ha...

Scientists must offer solutions for conserving tropical forests in a rapidly changing world

...nd subtropical moist forest and 9% of all tropical dry forests are nominally protected by governments. Increasingly, even these areas seem to be bearing the indelible marks of human activity. On Barro Colorado Island (BCI) administered by the Smithsonian Tropical Research Institute (STRI) in the Republ...

Discovering the first steps in transcription-coupled repair

...ight typically causes hyper-pigmented skin that is dry and parchment-like, and is followed by multiple skin cancers. If carefully shielded from ultraviolet light, for example by window filters and protective clothing, many XP sufferers can lead seemingly normal lives. XP results from mutations in any one...

Sahara's edge studied from ground, air and space to improve water management

...and parameters such as leaf area index and wet and dry biomass. Measurements had to be as authoritative as possible, for example close-up three-dimensional photographs were taken of plant rows and soil roughness while sap flow measurements made for olive trees. Samples were analysed in Tunisian laborator...

Predators keep the world green, ecologists find

...rcent. Most of the vertebrates present in regional dry forest ecosystem had disappeared from small islands, including fruit eaters and predators of vertebrates, leaving a hyperabundance of generalist herbivores such as iguanas, howler monkeys and leaf-cutter ants. "Mere numbers do not do justice to the ...

Skin disease common among Hispanic farmworkers in North Carolina, research shows

...e. Among the women, diagnoses included excessively dry skin, foot fungus and acne. "While these may not be a direct result of farmwork, it is likely a result of resources and living environment," said Arcury. He explained that workers often must share shower facilities and often have limited access t...

The world's deepest dinosaur finding - 2256 metres below the seabed

...nce a huge area where big rivers meandered through dry plains. Now the landscape has been compressed to form a pattern of fossil alluvial sand between banks of red shale. ...

The Amazon in 2050: Implementing the law could save a million square kilometers of rainforest

...not affect all forests and watersheds equally. The dry forest formation of Mato Grosso will virtually disappear by the year 2050, and many watersheds (including the Xingu and Tocantins Rivers) will lose most of the forest cover in their catchments, increasing flooding and sedimentation. The region of gre...

Amazon rainforest greens up in the dry season

...forest puts on its biggest growth spurt during the dry season, according to new research. The finding sur...d lush during the rainy season and then during the dry season, leaves fall because there's not enough water in the soil to support plant growth," said lead...

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