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Tag: "water" at biology news

Tastes great! Study shows brain's response to pleasing -- and changing -- tastes

...s in that area while the rats received water, salt water and sugar water directly into their mouths. They also recorded how the rats behaved while they tasted those differen...

Scientists use an 'ice lolly' to find polar bacteria in their own backyard

...using their DNA. The bacteria can modify ice and water in a number of ways. One of the species identified, Chryseobacterium sp., demonstrated Ice Recrystallisation Inhibition (IRI), a property that can be exploited in the production of ice-cream to prevent it from recrystallising and becoming 'crunchy'. ...

African wetland managers armed with new technology

Earth's wetlands are vital to the water cycle and havens for wildlife, but they are under ...r the conservation efforts of wetland managers and water authorities. In support of all African countries participating in the project, GlobWetland ?which ...

Common carp sheds new light on surviving in extreme environments

...perature, lack of oxygen and dirty, sediment-laden water makes it a particularly good subject for working out how animals can tolerate stress because the underlying mechanisms are so exaggerated and displayed so clearly. We now need to investigate whether the protein is involved in sustaining normal blood...

The secret lives of sea slugs

...luding escaping from predators by swimming up into water currents that hurl them (un-sluggishly) end over e...r bodies to reduce drag when they encounter strong water currents, a behavior that helps them avoid being swept away. At field sites near Vargas Island, Br...

Researchers discover how bacteria sense their environments

...nked receptors to rearrange itself, much like when water freezes, all the water molecules assort themselves into a new structure. Through this reorganization, the bacterium's recep...

Important gene controlling tree growth and development found

...dopt to harsh winter conditions when the supply of water is low and the tree might be damaged from both drought and cold. The trees have adopted to these conditions by stopping growth and forming buds at the end of summer or early fall. Decidious trees also shed their leaves. The tree is now dormant and is...

New strategy developed to combat West Nile Virus

...When drought occurs early in the year, the limited water resources confine mosquito populations to selected habitats ?specifically isolated, densely vegetated hammocks where conditions remain humid. These moist hammocks also happen to be the spring nesting and roosting sites of many species of wild birds,...

Beaver dams create healthy downstream ecosystems

... levels in the Colorado River valley, keeping soil water levels high and providing moisture to plants in th... downstream in the Colorado River. They noted that water diverted by beaver dams is forced out of the natural stream channel and spreads across and down the ...

Surprising symbiosis: Glassy-winged sharpshooter eats with friends

...om a plant's xylem or phloem, pipes that transport water and food within a plant. These sap-feeders are often known to rely on resident bacteria for a balanced diet ?especially the synthesis of the "essential" amino-acids that all animals, including humans, cannot make for themselves. But researchers had a...

Race to halt global amphibian crisis boosted by rediscovery of endangered Colombian frogs

...le and rare biodiversity, and also ensures a clean water source for coastal towns that depend on two watersheds that have their sources at the site ...

Copying nature could save us energy, study shows

...e Centre. "From the way desert cockroaches gather water to the way wasps bore a hole into a tree, nature has developed a myriad of ways of solving difficult problems. "By better understanding the way in which biology defines and solves technical problems, we can develop new approaches that could signific...

K-Staters design and build a low-cost remote sensing tool for environmental studies

... to know the stress status of the plants: Is there water stress? Are the plants photosynthesizing at a high rate? We should be able to discern that information down to pixels representing less than a square foot of land area." ...

Pollutant haze heats the Arctic

...eory, we also used these data to estimate how much water the clouds had, and also the sizes of droplets in ...issivity" ?how much clouds act like a blanket ?and water droplet size in the clouds when the clouds were polluted and not polluted. "We found that when clo...

Species unique to tidal marshes face threats

...s that can concentrate salts from large volumes of water or specialized glands that exude salt. Many are gray or black in color, which is believed to be an advantage because it matches the dark color of the soils often found in tidal marshes. Why endemic tidal marsh species seem to be largely restricted to...

Massive duplication of genes may solve Darwin's 'abominable mystery' about flowering plants

...ions in primitive flowering plants like the yellow water lily (Nuphar). "We can view these basal angiosperms like the Hubble Space Telescope, which helps us get a deeper look into the early history of the universe--these plants allow us to take a deeper look into genomic history." Darwin noticed that flo...

Corals switch skeleton material as seawater changes

...lcite-producing corals grown in artificial ancient water grew significantly slower than did the aragonite-producing corals grown in modern water. "The reduction in the corals' rate of growth that accompanied their exposure to the chemically modified seawaters is further evidence of corals' extreme sensiti...

Choosy females make colourful males

...n risks, which are associated with a difference in water depth and food choice. It is therefore in the fema...fferences evolve? The red species occurs in deeper water than the blue species and therefore experiences different light conditions. Behavioural experiments ...

Pollen proves beneficial for northern lakes

...es Area. "Specifically, pollen subsidized the lake water nutrient levels and in turn, promoted the abundance of plankton," said Graham, who is working with Dr. Rolf Vinebrooke in the U of A's Freshwater Biodiversity Laboratory. "Our findings strongly suggest that pollen is an important linkable between te...

UNH researcher restoring oyster reefs to Great Bay

...hire Fish and Game Department. Also, the effect on water quality could be significant: Each oyster, says Grizzle, pumps 20 or so gallons of water each day through them, retaining particles as small as a virus. "They're marvelous filters," he says...

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