Tag: "western" at biology news

Freshwater Sponges May Pose Threat To Zebra Mussels

... of a shipwreck off Kelly's Island, in Lake Erie's western basin. Their observations indicated the sponges were only an effective competitor with zebra mussels on the vertical sides of the reef and shipwreck. The sponges were very competitive on these surfaces, jockeying the mussels for the best positi...

Cornell Researchers Precisely Date Wood From Ancient Tomb In Turkey

...ely influenced climate patterns as far away as the western United States. Volcanic ash from Thera blocked the sun and caused cooler, wetter weather conditions worldwide. Rings from American bristlecone pine trees revealed extensive frost damage attributable to the eruption. But in the desert conditions of ...

UC Berkeley, U.S.G.S. Scientists Discover Microscopic Invader Of San Francisco Bay, The First Known Marine Microbe Invader Of U.S. Waters

...ater in a Japanese port and emptied its tanks into western U.S. waters, the scientists say. This exotic foraminifer is a common inhabitant of estuaries and bays in Japan, where it lives in the mud in shallow water. Alarmingly, the new resident in San Francisco Bay has spread widely throughout the bay and is...

Sea Turtles Have Favorite Oceanic Routes

...ebrants, somewhere in the Pacific Ocean -- off the western coast of South America -- there are some leatherback turtles who have just begun to share their traffic information. Sea turtle number 1109-B and some of her fellow leatherbacks have given humanity a fascinating glimpse into the long-distance migrati...

Scientists Discover Smallest Frog

...ng the roots of ferns in a humid rainforest on the western slope of Cuba's Monte Iberia. Hedges and Cuban scientist Alberto Estrada gave the frog the scientific name Eleutherodactylus iberia . Those two words are more than three times longer than the frog itself. "NSF's biotic surveys and inventor...

A Phoenix From A Ring Of Fire Is A Pattern For The Recovery Of Mount St. Helens

...no recover its majestic forests of Douglas fir and western hemlock within a similar period of time? Definitely, says University of Washington zoologist John Edwards, who recently returned from Krakatau. As one example of recovery he cites French researchers' discovery of a proliferation of bal...

New Evidence For Corn's Ancestry Could Lead To Insect And Drought Resistant Crops

...ccurs in normal commercial corn. "We're using the western corn rootworm, which is the most seriouspest in the Midwest," she said. "It's an incredible problem anda big expense for corn growers. Because they don't know where they are goingto have an outbreak, they now have to treat all their fields with extre...

Ozone 'Chat Room' Provides Real-Time Air-Quality Research

...ater Ohio River Valley -- roughly from Illinois to western Pennsylvania -- and when the wind blows from the Midwest toward the east, neighboring areas receive higher doses. The data are very clear on that." Another observation: Compared with weekdays, ozone levels are reduced over weekends. "Only humans o...

Natural Shelters on Leaves House Plant Bodyguards

... found that the spider mites' naturalenemies - the western flower thrip, the big-eyed bug and the minute piratebug - readily took up residence in the simulated domatia. Furthermore, yieldof cotton bolls was boosted 30 percent in cotton plants that had domatiaadded to their leaves early in the season. The re...

Fighting Wheat Scab In New York State

...20,000 to 150,000 acres annually, primarily in the western and central parts of the state, he said. The wheat grain, with a New York grower cash receipt value of approximately $30 million annually, also is milled and processed by several New York food companies into flour for crackers and other pastry produ...

10,000-Year-Old Clues Suggest Future Forest Changes

...rought-resistant Douglas fir trees beginto replace western red cedar and hemlock. "We are likely to have more forest fires of increased severity. Cedar is especially susceptible to fire and drought. In fact there is evidence to show cedar is not regenerating well in some areas now," Mathewes says. He says th...

Strange South American Fossil Mammals Found In Madagascar And India

...Cretaceous while South America was attached to the western end of Antarctica. This discovery supports that hypothesis with totally independent evidence derived from the fossil record." Significantly, gondwanatheres have not been found in Africa, which lends credence to the research team's conclusion th...

Termites' Attraction To Small Amounts Of Carbon Dioxide Lures Pests To Their Deaths

...ab. Last year, the Colorado State team showed that western cornrootworm--a pest that causes $1 billion in crop damage each year--solely usesCO2 to find young corn roots. Larvae must locate roots within three days afterhatching or die of starvation. Bjostad developed several pellets containingnatural ingredie...

Researcher Identifies Two New Violet Species In Central America

...lope." "This violet tended to grow on the western slope in the area of CostaRica where it was found, and that was the only distinguishing characteristic Icould think of when trying to name it," he said. Ranging in height from 3 to 15 feet, this violet has white petals thatare three-quarters ...

USGS To Study Young Forests And Streamsides In Western Oregon

...als and theirhabitats on federal forested lands in western Oregon. The 10-year program, whichbegins this summ...st," saidCollopy, "successful forest management in western Oregon demands a multifacetedperspective, and the CFER program allows us that perspective." Individu...

Invasive Weeds Pose Major Threat To American Landscape

... of the Interior survey, noxious weeds areinvading western wildlands at a rate conservatively estimated to be nearly 5,000acres a day. Pat Shea, director of the Bureau of Land Management, says that,"Western wildlands and deserts are an important part of our biological heritageand need to be protected from i...

Study Shows Zebra Mussels Can Colonize Sand And Mud

...he New York-Pennsylvania border to the lake’s western basin.They determined that by 1995, zebra mussels covered about 2,000 square kilometersof the lake bed’s soft sediment. “We do know that mussels colonize soft substrates and that theyare doing this over a significant portion of the lake,&#...

Increasing Threat Of Extinction For Amphibians? Scientists To Seek Answers At NSF Workshop

...eral years, many in high-altitude locations in the western United States, andin Puerto Rico, Costa Rica, Panama, Columbia and Australia. Studies suggestthat the declines may be caused by infections, perhaps promoted by environmentalstressors such as synthetic organic compounds like pesticides, metallicconta...

Penn State Process Removes Rocket Fuel Ingredient From Drinking Water

...as become a widespread contaminant of water in the western U.S. The California Department of Health Services found 30 percent of 232 wellssampled were contaminated. The Southern Nevada Water Authority foundperchlorate in its tap water in just under action level. Perchlorate has alsobeen found in the Las Ve...

The Fishing Hole Had Better Be Upstream From Commercial And Industrial Centers

...ofstreams. The researchers looked at 12 streams in western North Carolina,counting insects and measuring phys...ension of five decades of studies of streams inthe western Carolina forests by the Coweeta Hydrologic Laboratory, a U.S. ForestService facility funded by the N...

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