Σάββατο 26 Ιανουαρίου 2013

ScienceDaily: Top Environment News

ScienceDaily: Top Environment News


Depression-era drainage ditches emerge as sleeping threat to Cape Cod salt marshes

Posted: 25 Jan 2013 07:42 AM PST

Cape Cod, Massachusetts has a problem. The iconic salt marshes of the famous summer retreat are melting away at the edges, dying back from the most popular recreational areas. The erosion is a consequence of an unexpected synergy between recreational over-fishing and Great Depression-era ditches constructed by Works Progress Administration in an effort to control mosquitoes.

New control strategies for 'bipolar' bark beetles

Posted: 25 Jan 2013 07:42 AM PST

Population explosions of destructive pine beetles may be prevented by boosting competitor and predator beetle populations, a new study suggests. The study confirmed, for the first time, that the abundance of an animal species -- in this case the southern pine beetle -- fluctuates innately between extremes, with no middle ground.

Almost 500 new species discovered at Senckenberg: Newly discovered species in 2011 and 2012

Posted: 25 Jan 2013 07:39 AM PST

In the last two years scientists at the Senckenberg research institutes have discovered and described almost 500 new species.

Global warming less extreme than feared? New estimates from a Norwegian project on climate calculations

Posted: 25 Jan 2013 07:39 AM PST

Policymakers are attempting to contain global warming at less than 2°C. New estimates from a Norwegian project on climate calculations indicate this target may be more attainable than many experts have feared.

Computer scientists develop new way to study molecular networks

Posted: 24 Jan 2013 11:07 AM PST

Computer scientists have developed a new approach to address the shortcomings in the computational analysis of the multiple ways interactions can occur within cells.

Australia: Nullarbor region once full of fast-flowing rivers

Posted: 24 Jan 2013 09:30 AM PST

Geologists have shed new light on the origin of Australia's largest delta, the Ceduna Delta, and the river systems which drained the continent millions of years before the Murray-Darling system came into existence.

Ovarian tumor, with teeth and a bone fragment inside, found in a Roman-age skeleton

Posted: 24 Jan 2013 06:14 AM PST

A team of researchers has found the first ancient remains of a calcified ovarian teratoma, in the pelvis of the skeleton of a woman from the Roman era. The find confirms the presence in antiquity of this type of tumor -- formed by the remains of tissues or organs, which are difficult to locate during the examination of ancient remains. Inside the small round mass, four teeth and a small piece of bone were found.

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