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Tag: "dead" at biology news

Marine 'dead zone' off Oregon is spreading

... Sanctuary indicate. There have been reports of dead crabs stretching from the central Oregon coast to ...ing makes determining the size and movement of the dead zone difficult, although some new instrumentation being used this year by OSU scientists is helping....

DNA: Bacteria's survival ration

... in a pinch, E. coli can feast on the DNA of their dead competitors. A research team led by Steven Finkel... applications to medical research, as the DNA from dead cells in the human body may be sustaining harmful bacteria. One of the pathogens implicated in cyst...

Gene thwarts some pathogens, gives access to others, could save crops

...pathogen that can infect and obtain nutrients from dead cells on a plant and actually secretes toxic substances into plant tissue in order to gain entry. Another type of pathogen, called a biotroph, must feed on live plant cells. As a strategy to contain a pathogen, plants actually kill their own cells at...

'Dead zone' summer killed billions of ocean state mussels

...ls, we may be losing the ability to prevent future dead zones from forming," Altieri said. "So these sorts of extinctions may trigger a downward spiral, with coastal zones less able to handle environmental degradation." According to a 2004 United Nations Environment Program report, the number of areas hi...

Dogs keep dying: Many owners unaware of toxic dog food

...ies and collecting as many livers as possible from dead dogs to confirm cause of death, tracking dogs that have died and following up on the health of dogs that survive the food poisoning. The AHDC has information for veterinarians on its Web site http://diaglab.vet.cornell.edu/news.asp . "We suspect th...

Avian flu transmission to humans may be higher than thought

...here is an association between direct contact with dead or sick poultry and flu-like illness in humans and...9 percent) resided in households reporting sick or dead poultry." The researchers report that having poultry in the household was not a risk factor for dev...

Leave it to salmon to leave no stone unturned

...f fertilizing salmon streams with the carcasses of dead salmon obtained from hatcheries," says Daniel Schindler, UW associate professor of aquatic and fishery sciences. "Although this does replace some of the nutrients that salmon returning from the sea would normally provide, it entirely ignores the fact...

World shark attacks dipped in 2005, part of long-term trend

...New York City, which is to lie on the ground, play dead and give up the purse." Despite the worldwide decline, the number of attacks in the United States rose slightly, from 30 in 2004 to 38 in 2005. But that is still considerably lower than the recorded high of 52 in 2000, he said. The same pattern eme...

Lactic acid not athlete's poison, but an energy source - if you know how to use it

...her fuels in the body's tissues. Experiments with dead frogs in the 1920s seemed to show that lactate build-up eventually causes muscles to stop working. But Brooks in the 1980s and '90s showed that in living, breathing animals, the lactate moves out of muscle cells into the blood and travels to various ...

Medical experts: US unlikely to have enough vaccines to stop avian flu

...ide. Their median best-case estimates were 500,000 dead in the United States and 20 million worldwide. "It surprised me that they thought it was going to be this bad," said Wändi Bruine De Bruin, lead author of the study and research faculty member in the Department of Social and Decision Sciences at Car...

Red Tide causes sea turtle die-off in El Salvador

...dying in such high numbers. Tissues collected from dead turtles, and analyzed by both U.S. biologists and ...sh from affected areas, and the first instances of dead and dying sea turtles washing up on shore were reported in the second week in December. Dr. White th...

Marine mammals are on the frontline of failing ocean health

... Herpes, and Cancer In the past 15 years, 17% of dead and stranded sea lions in California have been diagnosed with a urogenital cancer, similar to cancers we see in humans. Researchers found high levels of persistent organic pollutants (POPs) in these animals and believe contaminants, when combined wi...

Ocean 'dead zones' trigger sex changes in fish, posing extinction threat

...ramme estimates nearly 150 permanent and recurring dead zones exist worldwide, including 43 in U.S. coasta...l waters. In the Gulf of Mexico, for instance, a dead zone the size of New Jersey, some 7,000 square miles, develops each summer. Other affected areas of ...

Embryos tell story of Earth's earliest animals

... "We wanted to find what conditions would allow a dead embryo to be preserved for about a month, enough t...o be encased in minerals," Rudolf Raff said. The dead spherical embryos do not last long under normal seawater conditions. If the cell's own degradation p...

GROWing the next generation of water recycling plants

...till be others there to continue the job until the dead plants can be replaced. The beauty of the system is that it is not 'high-tech' in the traditional sense. "It does not require sophisticated maintenance, just tending, like any garden," says Butler. The next aim for GROW is to see if it can be redu...

Wild birds help to create human flu vaccine

...samples from hundreds of wild birds, both live and dead including, ruddy shelduck, herring gull, black-headed gull, bar-headed goose, and whooper swans, all species that have been affected by the disease. "The collaboration of national and international agencies and groups in Mongolia provides a solid...

Mapping alcohol brain damage

...Dodd said his team was analysing brain tissue from dead alcoholics, mostly Anglo-Celtic men who've averaged more than 10 drinks a day. The group analyses samples using a microarray analysis, a process they pioneered with human brain samples in 2000. From a DNA sample applied to a microscope slide, the...

Seal rookeries could provide a reliable food source for endangered California condors, study finds

...onservation strategy to train them to start eating dead seals and sea lions, whose populations are coming ...on even agreed to go around and snip off hair from dead deer killed on the highway," Chamberlain says. "Other people went around picking up samples from dea...

Wild Gorillas Handy with a Stick

...e forest and broke off the thin, long trunk from a dead shrub with both hands. She then jammed the trunk into the ground and grasped it with her left hand while manipulating food with her right hand. Efi then placed the trunk on the swampy ground in front of her, and, walking upright, used it as a bridge ...

Ancient trans-Atlantic swarm brought locusts to the New World

...ed in the ocean, they formed huge floating mats of dead locusts," says Lovejoy. "The other locusts would land on these mats, rest and feed on the dead bodies, then take off and keep flying." Another possibility is that among the millions of swarming l...

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