Tag: "streams" at biology news
Mississippi and Missouri River flood levels underestimated
..., land use changes that cause more runoff to reach streams
more quickly, and engineering changes that lowers a rivers capacity to transmit flood water efficiently....
Unwanted HRT playing havoc with songbirds
...rapy (HRT) for women has been finding its way into streams
and rivers. Oestrogen-like compounds are also formed by the breakdown of pesticides such as DDT. Last week the US Geological Survey reported that waterways in the US are contaminated with such compounds (Environmental Science and Technology, vol 36,...
Behind the big dry
...theast of the region, causing moisture-bearing air streams
to miss the continent. The encouraging news is that the system appears to have stabilized somewhat, although there is a large amount of year-to-year variability. The main change lies in the absence of particularly wet winters, which once recharged t...
Medicines, caffeine and antibacterial soap among contaminants found in American streams
A national survey of U.S. streams
across 30 states has revealed a list of compounds ...t of these compounds the researchers tried to pick streams
most likely to show some contamination. Most are downstream from wastewater treatment plants or inte...
'Buried dams' help clean recycled water
...out our environment, and the importance to natural streams
and wetlands of maintaining adequate subsurface water supplies. Dr Toze has tested the antiviral activity of indigenous microbes in groundwater taken from South Australia, the Northern Territory, Victoria, Queensland and Western Australia. In every c...
Sea levels likely to rise higher than IPCC predictions
...s colleagues initially thought the fast-moving ice streams
within the West Antarctic Ice Sheet might be the culprit. "We studied these ice streams
for a long time, but they're not providing the signal for a large increase in sea-level rise. One ha...
...ey. It likely encounters situations in which these streams
of information overlap in time. To what extent the pallid bat can attend to both streams
of information is unclear in light of auditory scene analysis studies indicating that humans are abl...
Outside-in conservation: What's around an area
...ms, and salamander abundance is higher indisturbed streams
that are confluent with undisturbed streams. The n...e and Bolger studied how logging near 25 headwater streams
in NewHampshire affects spring salamanders, which are pink, up to 8 incheslong, and rarely seen. Bec...
Engineers develop odour eaters for pulp mills
...sive to install for pulp and paper mills whose gas streams
range from 50 to 70 C. With a biofilter that treats the gas stream and its pollutants at higher temperatures, the process is far easier and more cost-effective. The application of this technology goes beyond pulp and paper, Allen says. It can be used...
Team identifies promising alternative to waste incineration
...the better technologies for treating certain waste streams
without using incineration. The Transuranic and Mi...sted and possibly used for several difficult waste streams
containing organics and other combustible materials from active handling operations at DOE's Savanna...
Fish may show how nature diversifies
...aciers melted, they created thousands of lakes and streams
in North America, Europe, and Asia. These waters were colonized by the sticklebacks marine ancestors, which adapted to life in fresh water. The spiny fish, which are one- to six-inches long, were remarkably successful in adapting to various niches in...
Antarctic mud reveals ancient evidence of global climate change
... "Warmer temperatures may have produced freshwater streams
that fed nitrogen and other nutrients into coastal waters," he explains. Climate surprises Further analysis revealed other surprises. According to the researchers, Western Antarctica appears to have undergone periods of warming and cooling during th...
Purdue leads center using pollution-busting plants, microbes
... help to keep polluted water from moving to nearby streams
and rivers. "But also there are microorganisms that exist around the roots of plants that can actually degrade the contaminants," Banks said. A variety of other plants can be used for specific environmental woes. For example, plants that accumulate m...
Small, mountain rivers play big role in ocean sediment
BOSTON -- Shallow streams
that wind through the mountains of New Zealand and Taiwan carry more sediment into the ocean than giant rivers like the Amazon or the Nile, according to Ohio State University geologists. ...
Invasive gobies prevent sculpin spawning, impacting perch food chain
... and other rock structures are placed in rivers or streams
it provides an opportunity to put in rocks small enough to suit the sculpins nesting needs, but not the gobies. Next, Janssen looks to further study control methods that may reduce the risk of round goby populations eliminating the mottled sculpin. ...
'Gold Bug' sheds light on how some gold deposits formed
...in a very large volume of water." "There are waste streams
from gold processing where this same reductionprocess might work on a larger scale, but the goal of this study was tooffer an explanation of how gold deposits are formed, more than it was toproduce any profitable or useful application on a larger sca...
Salmon life stories recorded in strontium
...d like. Young fish do not necessarily stay in the streams
into which they are released, so the tag on a reca...tlantic salmon generally spend two years inland in streams
and rivers as juveniles, and then head out to the ocean for a few years before returning to their ho...
New system developed for removing contaminants from storm run-off
...ntaminants and eventually depositing it in rivers, streams
and bays. While a variety of methods have been used to remove the contaminants before they reach local waters, their effectiveness varies. Thomas Boving, assistant professor of geosciences at the University of Rhode Island, may have just solved the...
Muddy waters: letting the Gulf of Mexico breathe again
...between agricultural lands and streams
and rivers. They also reduce the level of chemicals - agricultural and otherwise - that wash into waterways. Under current conservation ...
International scientists probe unsolved puzzles of the Earth and beyond at "Earth System Processes"
...ossible conflict with evidence for terrestrial ice streams
must be resolved. Grant M. Young is a senior geologist at the University of Western Ontario with long international experience. Twenty-five years ago, he made the important observation that the glacial deposits of the Paleoproterozoic Gowganda Format...
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