Articles with the keyword: 
Antidepressants make for sad fish
sea-maid submitted, created time 1 day 16 hours (www.sciencenews.org)
The drugs are becoming more common in river waters and can play dangerous head games with fish. 
Rethinking conservation: Can economics accomplish what environmentalism could not?
sea-maid submitted, created time 1 month 3 weeks (news.bbc.co.uk)
The global economy loses more money from deforestation than the current banking crisis, says an EU-commissioned report. This is taking into account the services that forests perform, such as purifying water and fixing carbon.
This is not a feeble rearrangement of the facts. When we lose the forestland that feeds water to our cities, we need to build our own new reservoirs and purification plants. The article's author, Richard Black of the BBC, wonders if framing conservation in terms of what it can do for human societies will do more good than preserving nature for nature's sake
Yangtze turtles may avoid extinction, but not this year
Darkfrog submitted, created time 1 month 3 weeks (www.nytimes.com)
In the past months, the Changsha and Suzhou zoos came to an agreement, and the the last known female Yangtze giant soft-shell turtle was carefully transported to Suzhou to meet and hopefully mate with what was at the time the only undisputed male of her species. Two more males but no females have since been found. This is one of the most endangered species on the planet.
Herpetologists were hopeful for this high-stakes captive breeding program
The Extent of Arctic Sea Ice Has Declined
sea-maid submitted, created time 1 month 3 weeks (www.sciencenews.org)
This summer, the area covered by Arctic sea ice dropped to its second-lowest since satellite measurements began in 1979. It has recovered slightly from 2007 with regard to ice coverage, but since this is new, first-year ice, it is very thin. Overall ice volume may in fact be lower.
First-year ice is more likely to break up and melt than multi-year ice. This exacerbates the global worming process. Sea water is dark in color and it absorbs (and converts to heat) 90% of the sunlight that hits it. White ice, however, can reflect between 70% and 90%
Mutualism alters fish behavior
Darkfrog submitted, created time 2 months 1 day (www.nature.com)
A type of fish called the cleaner wrasse seems to haev a calming effect on local predators. The wrasse eat parasites off the scales of larger fish and even provide what Nature writers have called "a calming massage" with their fins. In return, the client fish keep returning to the wrasses' territory to provide them with more food.
However, what researchers have recently noticed is that client fish stop hunting each other while in wrasse territory--even while they are waiting to be served.
Sunspots may be affecting hurricane intensity, study says
Darkfrog submitted, created time 2 months 2 days (www.nature.com)
While recent data have suggested that the Earth's warming climate has altered the intensity balance of storms to favor more intense and dangerous hurricanes, there may be an additional factor at work: The solar cycle.
A team at Florida State University has examined storm data going back a century. There appears to be a twelve-year storm cycle that corresponds with the rise and fall of magnetic activity on the sun.
This suggestion--which attributes some of our changing climate to non-manmade activities--has not gone unchallenged
Saving the Wildlife of Madagascar
sea-maid submitted, created time 2 months 4 days (www.time.com)
When you're on the lookout for lemurs — the unusually cute and endangered group of primates found only on the African island of Madagascar — it helps to have good eyes (lemurs are small), sharp ears (they rustle the trees) and a keen nose (they have an unmistakable smell).
It is hard to say how long the lemurs will be around. Madagascar is what conservationists call a biodiversity hotspot. All hotspots worldwide take up about 2% of Earth's landmass, but they are home to half its species
Explorers find hundreds of undescribed corals, other species on familiar Australian reefs
sea-maid submitted, created time 2 months 1 week (esciencenews.com)
Hundreds of new kinds of animal species surprised international researchers systematically exploring waters off two islands on the Great Barrier Reef and a reef off northwestern Australia -- waters long familiar to divers. The expeditions, affiliated with the global Census of Marine Life, help mark the International Year of the Reef and included the first systematic scientific inventory of spectacular soft corals, named octocorals for the eight tentacles that fringe each polyp
More habitat for threatened frog proposed
sea-maid submitted, created time 2 months 1 week (www.msnbc.msn.com)
SACRAMENTO, Calif. - Federal wildlife officials on Tuesday proposed more protection for the threatened California red-legged frog, providing up to four times as much habitat than was set aside two years ago.
The U.S. Fish and Wildlife Service recommends designating up to 1.8 million acres in twenty-eight California counties as habitat critical to the frog's survival. The proposal must undergo sixty days of public comment and another review before it becomes final.
The designation would require any development project on the land to get prior approval from federal wildlife officials
Arctic meltdown exacerbated by positive feedback
sea-maid submitted, created time 2 months 2 weeks (environment.newscientist.com)
With just weeks to go before the extent of the Arctic ice reaches its summer minimum, we take a look at the reasons behind its dramatic melt. How much is to do with global warming – and how much can be blamed on the weather?
In 2007, temperatures were unusually warm, and the sky was very clear at the beginning of the summer when solar radiation is strongest. What's more, winds pushed ice away from the Siberian coast and helped it move out into the Atlantic. These factors led to a record ice minimum and the opening of the Northwest Passage
Bad Sign for Global Warming: Thawing Permafrost Holds Vast Carbon Pool
sea-maid submitted, created time 2 months 3 weeks (www.sciencedaily.com)
Permafrost blanketing the northern hemisphere contains more than twice the amount of carbon in the atmosphere, making it a potentially mammoth contributor to global climate change depending on how quickly it thaws.
sea-maid submitted, created time 2 months 3 weeks (sciencenow.sciencemag.org)
When Lewis and Clark crossed America's heartland, they tramped through wide swaths of oak forests. But today, the oaks are in decline, and as they vanish so too does a whole coterie of native herbaceous plants critical to forest ecosystems, according to a unique analysis, which lays the blame on efforts to suppress fires. "We're losing the plants that characterized a rich and diverse ecosystem that existed here for thousands of years," says Thomas Rooney, an ecologist at Wright State University in Dayton, Ohio, and one of the study's authors
Climate change means more than mild winters: storms wreak extra havoc
Darkfrog submitted, created time 2 months 3 weeks (www.nature.com)
According to Nature, the maximum speeds of hurricanes and other intense storms have increased since 1981.
While atmospheric models have long suggested that an overall increase in planetary temperature will also increase the intensity of storms, it has also been argued that other results of increasing temperature, such as increased shearing winds, would cancel out or interfere with these other effects.
Climatologists at the University of Florida, however, have found that recent storms have been able to overcome the effects of shearing winds
New giant clam species offers window into human past
sea-maid submitted, created time 3 months 15 hours (esciencenews.com)
Researchers report the discovery of the first new living species of giant clam in two decades, according to a report to be published online on August 28th in Current Biology, a Cell Press publication. While fossil evidence reveals that the...
Ancient Beavers Take Silver in Log-Chomping Olympics
sea-maid submitted, created time 3 months 2 weeks (sciencenow.sciencemag.org)
Call it The Great Gnaw-Off. By studying logs chomped nearly five million years ago, researchers have discovered that ancient beavers weren't nearly as expert lumberjacks as their modern cousins. Indeed, the evidence suggests that they would have been trounced by today's beavers in a tree-cutting Olympics. Researchers say the finding provides rare insight into how one of the animal kingdom's busiest critters may have shaped ancient landscapes
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