ecosystems 2 5

Tag: "ecosystems" at biology news

New book highlights world's borderless conservation areas

...tion emphasizes global focus on protecting Earth's ecosystems across national boundariesNature knows no borders...w terminology for international efforts to protect ecosystems in their entirety. From the first transboundary protected area established in 1932, when Montana's G...

Envisat radar surveillance protects endangered prehistoric fish

...e EEZ, defend France's economic interests, protect ecosystems and stamp French sovereignty on their territorial waters. A surveillance system using French naval vessels has achieved some success, however the number of vessels fishing illegally continued to rise, and they proved adept at slipping through the sur...

Underlying cause of massive pinyon pine die-off revealed

...els. The new finding suggests big, fast changes in ecosystems may result from global climate change. "We docume...ists want to learn more about long-term changes in ecosystems that occur in response to climatic and other environmental variation. So in 1987, researchers estab...

Deep treasure to be found in Oculina Bank

...MC] has led the nation in managing deepwater coral ecosystems by setting up this reserve, it is now up to scientists to show if it's working," says expedition leader Andy Shepard from the National Oceanic and Atmospheric Administration's Undersea Research Center (NURC) at the University of North Carolina, Wilmi...

'Acid rain' and forest mass: Another perspective

...of the effects of atmospheric deposition on forest ecosystems reached beyond the scientific sphere and the term ...trates). This problem is not very common in forest ecosystems close to the sea given that, in these conditions, the uptake of magnesium with precipitation is high...

War on terror meets war on cancer

...oactively ?started out as a way to learn about how ecosystems work, based on how environmental factors affect the proportions of various isotopes in plants, animals, soil and air. Later, stable isotopes in sediments or other materials were used to learn details about prehistoric environments, such as changing t...

Gene therapy may protect normal tissues during radiation retreatment for lung cancer

...floor. In the past it has been thought that these ecosystems somehow dodged extinction by recolonising from nea...ent slides would have buried them. Typically these ecosystems would have been made up of sponges, urchins, sea fan corals, and starfish. Dr Thatje said: 'We show...

Seafloor creatures destroyed by ice action during ice ages

...floor. In the past it has been thought that these ecosystems somehow dodged extinction by recolonising from nea...ent slides would have buried them. Typically these ecosystems would have been made up of sponges, urchins, sea fan corals, and starfish. Dr Thatje said: 'We show...

Tropical dry forests receive international recognition

...m Costa Rica. "It's a mystery to me why, when both ecosystems are in danger one is ignored over the other." Tropical dry forests once made up 42 per cent of all forests in the tropics yet less than one per cent is protected. The most diverse tropical dry forests exist in southern Mexico and the Bolivian lowlan...

Environmental lessons from tsunami as world's coastal population doubles

Coastal populations and ecosystems are more likely to bounce back from extreme coasta...to Coastal Disasters report concludes that healthy ecosystems are much more likely to absorb the shock and provide protection from a coastal disaster than man-mad...

Ships bring alien jellyfish invaders to our shores

...tential to displace local marine species, threaten ecosystems and cause billions of dollars in damage and preventive control," says Dawson who tracked the invading jellyfish in Japan, California, western Europe and the east and west Australian coastlines. Introduced species are believed to cost the United Stat...

Use of high hydrostatic pressure to inactivate Hepatitis A virus in oysters studied

...food safety and quality, marine resources, coastal ecosystems through a competitive, peer-reviewed grant proposal process. In addition to its core programs, Virginia Sea Grant coordinates research in oyster disease and toxics in the Chesapeake Bay. ...

A Father’s Day Gift: Free DNA Paternity Testing

...considered nurseries for life on Earth. "Deep sea ecosystems hold the promise of huge potential contributions t...rty of all humankind?" Growing threats to fragile ecosystems Deep sea expeditions are increasingly frequent, their focus shifting from geological and geophysica...

Clear rules needed to govern deep sea bioprospecting: UNU

...considered nurseries for life on Earth. "Deep sea ecosystems hold the promise of huge potential contributions t...rty of all humankind?" Growing threats to fragile ecosystems Deep sea expeditions are increasingly frequent, their focus shifting from geological and geophysica...

Proposal would allow wild animals to roam North America

...ve approach to conservation, would help revitalize ecosystems that have been compromised by the extinction of ma...llion to about 10,000 years ago -- North America's ecosystems were much more diverse. As animals became extinct, many gaps developed in the web of interactions th...

Industrial contaminants spread by seabirds in High Arctic, new Canadian study shows

... and northern aboriginal communities rely on these ecosystems as a source of nutrition, economic development, traditional customs, and culture. "We now have evidence that seabirds can concentrate industrial contaminants in coastal areas to levels that can be affecting those ecosystems." ...

Study shows eutrophic lakes may not recover for a millennium

...the nutrient is all that is needed to send aquatic ecosystems into overdrive. Carpenter's model also shows that, unchecked, phosphorus pollution could put Lake Mendota on a fast track to extreme degradation. "There is a potential shift to an extremely degraded state that could occur even if we shut off the pho...

Genetic discovery could lead to drought-resistant plants

...ape the flux of carbon and water throughout entire ecosystems and affect the carbon cycle on a global-scale." The study was supported by the University of Toronto, the Natural Sciences and Engineering Research Council of Canada and the Biotechnology and Biological Sciences Research Council of the U.K. ...

Discovering an ecosystem beneath a collapsed Antarctic ice shelf

...d by chemical energy from within the Earth, unlike ecosystems that are driven by photosynthesis or hot emissions from the planet's crust. Domack and his coauthors propose that methane from deep underwater vents likely provide the energy source capable of sustaining the chemical life at the observed 850-meter [a...

Millennium Ecosystem Assessment: Many of 2 billion dryland dwellers at risk as land degrades

...ce frequent droughts without harm. However dryland ecosystems are fragile and human activity can increase their vulnerability to seasonal fluctuations and droughts." "Population growth, inappropriate policies, and some aspects of globalization are the main drivers that lead to unsustainable pressure on dryland...

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