Tag: "collapse" at biology news
Look at past sea-level rise points to troubling future
...group also is finding evidence that a catastrophic collapse
of one coastal structure -- like a barrier island -- can result in stress or even in collapse
of interconnected structures like tidal wetlands. "Even with past examples to guide us, devising an ...
Declining fish supply linked to wildlife consumption in West Africa, Science study reports
...g fish stocks suggest marine resources are nearing collapse
due to overfishing by regional and foreign fleets,...eets subsidized by the European Union. A fisheries collapse
would have widely felt consequences for regional economies, human food supply and efforts to conserv...
New study links low fish supply to increased bushmeat hunting
... The authors said that without interventions, the collapse
of both aquatic and terrestrial resources would li...t only local people but also driving a region-wide collapse
of biodiversity, it seems questionable that foreign governments should be using their taxpayers' mon...
Russia- wide tiger count begins
...oaching pressures during the early 1990s, when the collapse
of the Soviet Union resulted in political and economic chaos, forcing local residents to seek any means, including poaching of endangered species like tigers, to earn a living. The results of the last survey, along with subsequent monitoring, initi...
Study reveals developing countries with recipe for thriving health biotech industries
... Not only did Cuba represent a small market, the collapse
of the Soviet Union and the U.S. trade embargo forced it to develop its home-grown solutions to local health problems. After Cuban scientists trained in labs around the world in the early 1980s, Cuban research and development programs led to the firs...
Wolves gone, western ecosystems suffer
... "The ranges of large carnivores are continuing to collapse
around the world," the scientists note in their report. "In North America, the gray wolf and the grizzly bear have faced nearly complete extirpation in the lower 48 states, although populations of these carnivores have been increasing in recent years...
Global bird populations face dramatic decline in coming decades, study predicts
...ample, the researchers pointed to India, where the collapse
of the vulture population in the 1990s was followed by an explosion of rabid feral dogs and rats. In 1997 alone, more than 30,000 people died of rabies in India, more than half of the world's total rabies deaths that year. Insect control is another i...
Big, old fish key to restoring groundfish stocks
...n the coast that do not interbreed, meaning that a collapse
of a fishery in one location may not be easily corrected by migrating fish from other areas. There are few easy remedies to this problem, Hixon said. Complete closure of fishing or extremely low fishing quotas would be one approach, but this has ec...
Want to petrify wood without waiting a few million years? Try this
...e area and uniformity," Shin said. "Negative forms collapse
easily, but it is possible to make fiber-type materials," where the minerals fill in wood-grain openings....
Self-organization and vegetation collapse in salt marsh ecosystems
...stance a storm, may induce a cascade of vegetation collapse
and severe erosion on the cliff edge, leading to s...s increase ecosystem vulnerability and may lead to collapse
of salt-marsh vegetation....
New findings lead researchers to question basic assumptions of fisheries management
...ng healthy populations may help explain the recent collapse
of some major West Coast fisheries. The Pacific Fishery Management Council has declared several stocks of groundfish--a group that includes numerous species of rockfish and other bottom-dwelling fish--to be overfished. Tight restrictions were imposed...
Environmental crisis forging strange bedfellows
...must be forged if the world is to avoid ecological collapse
because of pollution and human interference, says a University of Toronto professor. "More and more people are realizing that the situation is now so grave that we have to reach out to communities other than just the scientists and environmentalists,...
Global team member comments on landmark ecosystem report
... fresh water. This increases the likelihood of the collapse
of fisheries, the emergence of new diseases, the degradation of water supplies and other abrupt changes that will seriously affect human health, the report states. "In the past, we were able to feed enough people and maintain a steadily growing consu...
Mother's prenatal and lactational diet may protect daughters from breast cancer
...n explains, is the ability it gives researchers to collapse
an entire life-span into a matter of months, instead of years. By using mice programmed genetically to develop tumors in the mammary glands eliminates the element of chance. Harman has observed suppression of tumor growth with as little as two perce...
Two are better than one
... pulls the receptors towards each other until they collapse
inward like overloaded laundry lines. The stressed receptors become engulfed by the cell, and thus cease signaling. In response, the cell halts growth and, when chemotherapy is used in combination with the immunotherapy, it dies. According to Sela, ...
Bee mites suppress bee immunity, open door for viruses and bacteria
...native bee mite is causing the dramatic and sudden collapse
of bee colonies across the country, but Penn State...on and bacteria is the cause of the two-week death collapse
of hives." The mites suppressed other immune responses in the bees, leaving the bees and the coloni...
Scripps scientists find potential for catastrophic shifts in Pacific ecosystems
...l markets, which have the potential for unexpected collapse
and irreversible change. Scripps Professor George Sugihara and Scripps students Chih-hao Hsieh, Sarah Glaser and Andrew Lucas conducted the study--an extension of an advanced graduate course at Scripps--that analyzed the underlying dynamics responsi...
Researchers discover underwater volcano
...nd seawater, or tsunamis that may be caused by the collapse
of the newly built volcano. "It is a good idea for us to keep our eyes on this area, but there is no real reason for concern about immediate danger," said Staudigel. Three students from High Tech High in San Diego were aboard one of the two expeditio...
Discovering an ecosystem beneath a collapsed Antarctic ice shelf
...rn Weddell Sea following the sudden Larsen B shelf collapse
in 2002. "This is definitely the biggest thing I've ever been involved with in the Antarctic," said Eugene Domack, a professor at Hamilton College in New York and lead author of the report detailing the ecosystem. The article will be published in the...
Freeze-dried mats of microbes awaken in Antarctic streambed, says U. of Colorado study
...s Fahrenheit in the past 60 years and has seen the collapse
of several major ice shelves and significant glacial thinning in recent years, according to several international studies. The McMurdo Dry Valleys region consists of glaciers, open expanses of barren ground, stream channels and permanently ice-cover...
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