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Tag: "regional" at biology news

Underlying cause of massive pinyon pine die-off revealed

...02 and 2003. The researchers confirmed the massive regional dieback of vegetation through both aerial surveys and analysis of satellite images of those states' pinyon-juniper woodlands. "Scientists are concerned about how fast vegetation will respond to climate change, but we don't have many examples to test...

New book highlights world's borderless conservation areas

...fer multiple benefits, both internationally and at regional and local levels. They can reduce tensions between countries and help rebuild peaceful cooperation. Peace parks celebrate historically good relations along with a shared commitment to managing precious natural resources. "Transboundary Conservation:...

Clocking in Pillow Time without the Pillow

... glucose in the monkeys' brain cells. By measuring regional brain glucose metabolism, the researchers determined that for sleep-deprived monkeys, glucose metabolism drops off in brain areas previously associated with memory tasks—namely, the prefrontal cortex, the dorsal striatum, and the medial temporal lobe...

Noise And Delays Explain Why Some Genes Oscillate In Activity

... glucose in the monkeys' brain cells. By measuring regional brain glucose metabolism, the researchers determined that for sleep-deprived monkeys, glucose metabolism drops off in brain areas previously associated with memory tasks—namely, the prefrontal cortex, the dorsal striatum, and the medial temporal lobe...

Health of coral reefs detected from orbit

...impacts on the reef ecosystem, and thus fisheries, regional tourism and coastal protection. Coral bleaching is linked to sea temperatures above normal summer maxima and to solar radiation. Bleaching may take place on localised and mass scales ?there was an extensive bleaching event in 1998 and 2002 likely lin...

Sahara's edge studied from ground, air and space to improve water management

...n authorities, technical centres, universities and regional organisations - have become involved in different projects around the continent. The hope is to develop a technical, human and institutional capacity to bridge Africa's water information gap using satellite data. ESA launched TIGER in 2002, as a re...

Mapping alcohol brain damage

...s, because most neurological diseases also exhibit regional selectivity of pathology." Professor Dodd said researching proteins was the next step as that would tell them why some cells have impaired function. He has also teamed up with United Kingdom colleagues to find out why people get addicted to alcoh...

New maps reveal true extent of human footprint on Earth

...al market. But scientists risk missing important regional and local trends by taking only a global approach to land use change. "There is still a large 'disconnect' between global, top-down views of changing planetary conditions, and the local, bottom-up perspective of how humans affect and live in a changi...

Predators keep the world green, ecologists find

...ust 25 percent. Most of the vertebrates present in regional dry forest ecosystem had disappeared from small islands, including fruit eaters and predators of vertebrates, leaving a hyperabundance of generalist herbivores such as iguanas, howler monkeys and leaf-cutter ants. "Mere numbers do not do justice to ...

Hooked on fishing, and we're heading for the bottom, says scientist

...fisheries activity since 1950. This reveals local, regional and global trends in past and present fisheries pr... the late 1980s. Since then, while there have been regional variations, the global fish haul has gradually sunk. "There's no doubt about this," says Dr. Pauly ...

Treating populations infected with HIV and latent TB could speed the emergence of drug-resistant TB

In 2005, 46 regional Ministers of Health in Africa declared that a dramatic rise in tuberculosis (TB) cases was cause for emergency. In some African countries, annual TB case notifications have increased as much as four-fold over the past 15 years. The main culprit? The ...

'Word-vision' brain area confirmed

...s provides precious support to the idea of partial regional selectivity for word perception in the ventral cortex," they wrote. Importantly, the researchers observed that before the surgery, the patient could recognize long words as quickly as short ones; but after the surgery, the recognition time increased...

Potential heart benefit found in stem cells

...the heart's main chamber during a single beat) and regional left ventricular wall motion, which is related to ejection fraction, researchers evaluated a treatment with bone marrow-derived cells, attempting to clarify the extent of stress-induced or rest perfusion defect (scar tissue) in patients with ischemic...

Pesticides in the nation's streams and ground water

... Northwest and including Hawaii and Alaska, plus a regional study in the High Plains aquifer system. Although none of the USGS stream sampling sites were located at drinking-water intakes, a screening-level assessment was done by USGS to provide an initial perspective on the relevance of the pesticide concen...

Crucial site for endangered frogs and birds saved

...said Claude Gascon, CI's senior vice president for regional programs. "By working together, we were able to forever protect a site identified by AZE as the last remaining habitat of Critically Endangered species." "We were able to save this site from the bulldozer in the nick of time and managed to safeguard...

Albatross study shows regional differences in ocean contamination

...tween black-footed and Laysan albatrosses indicate regional differences in the contamination of North Pacific waters, said Myra Finkelstein, a postdoctoral researcher at the University of California, Santa Cruz, who led the study. "The black-footed albatrosses forage mostly in the California Current, wherea...

Vegetables inhibit growth of prostate cancer in mice with human tumors

...tween black-footed and Laysan albatrosses indicate regional differences in the contamination of North Pacific waters, said Myra Finkelstein, a postdoctoral researcher at the University of California, Santa Cruz, who led the study. "The black-footed albatrosses forage mostly in the California Current, wherea...

On the track of tiny larvae, a new model elucidates connections in marine ecology

...hers to successfully predict genetic patterns on a regional scale. This breakthrough approach to integrating genetic and oceanographic models helps predict genetic links among several locations and is an important new tool for the management and ecological study of marine protected areas. ...

New tiger report release: Tiger habitat down from just a decade ago

...ready to support the 13 countries with tigers in a regional effort to save the species. The report's authors suggest that the heads of state of those countries convene a "tiger summit" to elevate tiger conservation on their countries' agendas. "Saving wild tigers requires tiger range countries to work togeth...

UN review shows need to halt destructive fishing practice

... term rewards is inexcusable," said Rodriguez, now regional vice president and director of CI's Mexico and Central America program. "Proactive steps, specifically in the form of a moratorium, must be taken to control the impacts of high seas bottom trawling." Only two Regional Fisheries Management Organizat...

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