Tag: "rain" at biology news

Student science contest participation influences study, career choices, alumni say

...project in 1994 was to look at the effects of acid rain on microorganisms that were being used by commercial waste management to degrade wastes. Working along side scientists inside a company's lab "gave me perspective on what careers were out there in the life sciences". Merson went on to do med...

Scientists sequence genome of kind of organism central to biosphere's carbon cycle

... in amounts comparable to all the world's tropical rain forests combined. "These organisms are incredibly important in the global carbon cycle," says Virginia Armbrust, a University of Washington associate professor of oceanography and lead author of a research article in the Oct. 1 issue of Science ....

Hidden diversity: DNA 'barcoding' reveals a common butterfly is actually 10 different species

...acin Guanacaste, a large conservation zone of dry, rain and cloud forests in northwestern Costa Rica. They noticed that, amid the more than 2,500 wild-caught caterpillars of A. fulgerator, many could be separated by slight variations in color, which then could be linked to the particular plants the cate...

Deserts and rainforests are equally productive during drought

...rainforest, during drought conditions, the maximum rain use efficiency (RUEmax), or effective productivity of plant growth per unit of precipitation converges to a common value. During the late 1960s and early 1970s, the International Biological Program (IBP) began to study how water affects productivit...

Virginia Bioinformatics Institute researcher advances fight against sudden oak death disease

...rum spores are either blown by wind or splashed by rain to the oak's trunk where the pathogen infects the living bark layer. The P. ramorum infection spreads around the trunk's circumference and cuts off food supplies coming to the roots from the leaves, eventually killing the roots. Thus, the tree's deat...

All ecosystems are equally productive under drought conditions

...said. Huxman said, "For any ecosystem, if rain falls below historical minimums, our model predict.... Huxman is doing so by simulating different-sized rain events on sites in southern Arizona and seeing how grassland and mesquite savanna ecosystems respond...

Lowly weeds may hold promise for curing host of common health woes

..., he said. "With all the emphasis on the tropical rain forests, an entire area is being missed in natural products research," said Stepp, whose results appear in the current issue of the Journal of Ethno-Pharmacology. "These findings suggest that we need to broaden our horizons if we're going to search f...

Utah scientist helps discover new mouse species -- and maybe a new genus

...about three percent of the original mature lowland rain forest in the Philippines remains today, and it had been feared that many species had been lost even before they were discovered. The Philippines is often listed as one of the highest global priorities for conservation. "Finding this wonderful new ...

Continents played key role in collapse and regeneration of Earth's early greenhouse, geologists say

...to have any polar ice caps. Lowe hypothesizes that rain combined with atmospheric carbon dioxide to make carbonic acid, which weathered jutting mountains of newly formed continental crust. Carbonic acid dissociated to form hydrogen ions, which found their way into the structures of weathering minerals, an...

New mouse species found in the Philippines

... Only about 3% of the original mature lowland rain forest in the Philippines remains today, and it had been feared that many species had been lost even before they were discovered. The Philippines is often listed as one of the highest global priorities for conservation. "Finding this wonderful new ...

Computer model shows increased US threat from soybean rust

...weather-related factors, such as wind currents and rain that can bring the spores down to the ground. The scientists are also using the model to help assess the most likely times of the year and areas in the United States where the first epidemic will occur. "Given what we know now, the most likely scenar...

Earth, sky tapped in unique global climate change study

...t's an ecosystem where native plants must react to rain and temperature extremes along a dusty, winding ro...t juniper would be able to take advantage of extra rain in the spring, because they are evergreen so they are actively growing before the other species," Tj...

ESA's minature Earth observer put to many uses

...ankton in his country's reservoirs. "Because most rain in Spain falls in the north, the country has hundreds of large reservoirs to redistribute water where it is needed," Pena-Martinez explained. "We are interested in monitoring levels of photosynthetic pigments on the surface of a number of sample rese...

Is that plant a tortoise or a hare? Answer predicts its response to environmental change

...st time, scientists can equate plants in Amazonian rain forest, Minnesota prairie or Alaskan spruce woods using the same set of economic strategies. Moreover, a plant's position on the continuum predicts how it will likely respond to climate change and other factors. The work will be published in the Apri...

ESA consults European science community on candidate Earth Explorer missions

...urement to provide improved observations of light rain and snowfall and to contribute to the monitoring and understanding of storms that produce hazards such as flash floods. The overall Global Precipitation Measurement mission consists of a core platform equipped with microwave instruments and a number ...

New book urges ecologists to think 'outside the helmet'

...chetheory cannot explain the diversity of tropical rain forests or coral reefs, where hundreds of species appear to be essentially the same. "Beyond variability and abiotic effects, scale has to beincorporated in this new synthetic niche theory that we propose" Chase said. "We need to look at th...

Improved crop production and fewer greenhouse gases

...ses on the effects of fossil fuel combustion, acid rain and deforestation on the buildup of carbon dioxide in the atmosphere. At Boston College, he teaches courses on "Biogeochemistry of the Habitable Planet"; "Environmental Geochemistry: Living Dangerously," and "Weather, Climate and the Environment: Glo...

Southern Californians commonly misinformed about beach water quality, study finds

...ility for example, there's a 30 percent chance of rain today," Grant said. "Of course, a lot of science goes into the generation of weather forecasts, and water quality forecasts will be no different." The research also provided new insights into the causes of coastal pollution, such as fecal bact...

Natural enemies help scientists untangle tropical forest food webs

...mpelling new experimental evidence on how tropical rain forest food webs are constructed, findings that ma...portant ecological theory in the highly biodiverse rain forest environment. Ecologists have long believed that species which have nothing in common but a 'n...

Rwanda's primate-rich forests now a national park

...Park in Burundi together form the largest block of rain forest in eastern Africa. Nyungwe was first created as a forest reserve in 1933, in response to the rapid clearing of forests for farmland in the 1920s. However, surrounding communities continued activities such as wood cutting, hunting, small-scale...

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