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16 posts tagged with ecosystem.
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Controlling the genetics of wild populations, a next step in GM research

New GM technique injects mosquitoes with a gene that results in mostly male offspring, eventually leading to a population crash. Previous efforts to tackle the disease, that kills more than 1 million people each year – most of whom are African children – have included bed nets to protect people and insecticides to kill the mosquito species most responsible for the transmission of malaria (Anopheles gambiae). The new technique by a team at Imperial College London involves injecting mosquitoes with a gene that causes the vast majority of their offspring to be male, leading to an eventual dramatic decline in population within six generations as females disappear. “You have a short-term benefit because males don’t bite humans [and transmit malaria],” Andrea Crisanti, one of the authors of the new research, which was published in the journal Nature Communications on Tuesday, told the Guardian. “But in the long term you will eventually eradicate or substantially reduce mosquitoes. This could make a substantial contribution to eradicating malaria, combined with other tools such as insecticides.”
These new mosquitoes are now set to be used in Brazil, having been approved for use by the Brazilian government with a factory for their production now opened.
[more inside]
posted by Blasdelb on Aug 14, 2014 - 122 comments

How Wolves Change The Flow of Rivers

It's a bit breathless and the music is stolen from Lady Hawke or something, but this is a nice description of a trophic cascade in a little over 4 1/2 minutes.
posted by BillW on Feb 16, 2014 - 24 comments

Missing

What Is Missing? is artist and architect Maya Lin's (previously) last memorial, this one to vanishing species and habitats. [Via] [more inside]
posted by homunculus on Nov 10, 2013 - 10 comments

Internet Ecosystem

How the Internet Ecosystem Works. [Via]
posted by homunculus on Aug 11, 2013 - 11 comments

The unexpected nature reserve

Twenty miles or so east of Amsterdam, set between the new towns of Almere and Lelystad, and lying five metres below sea-level, is the youngest wilderness I have ever seen. The Oostvaardersplassen is now a vast region of grassland, reed-bed, shallow lake and ragged forest, over 6,000 hectares in extent. Sea eagles and marsh harriers hunt its wide skies, spoonbills and avocets stalk its marshes, and vast herds of red deer, wild ponies and Heck cattle graze its savannah. But 40 years ago, the Oostvaardersplassen was underwater.
posted by Chrysostom on Nov 28, 2012 - 11 comments

The Longest Time (Coral Triangle Edition)

Billy Joel has now officially endorsed - The Longest Time (Coral Triangle Edition), by the Barber Lab Quartet [more inside]
posted by Blasdelb on Jul 18, 2012 - 17 comments

Eyeless Shrimp in the Gulf of Mexico

In the wake of the 2010 Deepwater Horizon oil spill, Al Jazeera reports on large-scale deformities and mutations in the Gulf of Mexico seafood catch.
posted by parudox on Apr 18, 2012 - 64 comments

In a sympathetic biochemical photo-reactive process, the Biosphere has altered the litho-sphere into the pedosphere, the cryo-sphere, the hydrosphere and the atmosphere*

The Loess Plateau in China’s Northwest is home to more than 50 million people. Centuries of overuse led to one of the highest erosion rates in the world and widespread poverty. Two projects (results) set out to restore the Loess Plateau. [more inside]
posted by infinite intimation on Mar 22, 2012 - 7 comments

Death of Wangari Maathai announced.

I am sorry that Wangari Maathai, inspiring Nobel Peace Prize winner famous for tree-planting programme, has died.
posted by maiamaia on Sep 26, 2011 - 28 comments

How a river works

What We've done to the Mississippi River: An Explainer [more inside]
posted by Potomac Avenue on Jun 1, 2011 - 14 comments

Defining Wealth

SEED Magazine: Wealth of Nations: "Shared natural resources underpin the global economy, but our current economic system does not acknowledge their worth. Can a major new effort to assess the costs of biodiversity loss force a paradigm shift in what we value?" [more inside]
posted by zarq on Nov 30, 2010 - 10 comments

Life, rekindled.

How does an ecosystem rebound from catastrophe? Thirty years after the blast, Mount St. Helens is reborn again. Interactive Graphic: Blast Zone. Also see National Geographic's feature article from 1981, chronicling that year's eruption. Previously on MeFi [more inside]
posted by zarq on Apr 20, 2010 - 18 comments

Grand Canyon Blow Out.

The U.S. government flooded the Grand Canyon yesterday in the hopes of restoring the ecosystem. Some environmentalists disagree.
posted by gman on Mar 6, 2008 - 34 comments

Humans vs The Sea

A Global Map of Human Impacts to Marine Ecosystems "What happens in the vast stretches of the world's oceans - both wondrous and worrisome - has too often been out of sight, out of mind. The goal of the research presented here is to estimate and visualize, for the first time, the global impact humans are having on the ocean's ecosystems."
posted by dhruva on Feb 14, 2008 - 20 comments

Tidal Attraction

Tidal Attraction
Strange, delicate, and sometimes delicious, tidepool creatures never cease to fascinate – until they’re gone. Steinbeck knew all about this enchanting world.
posted by Irontom on Jun 9, 2004 - 4 comments

The State of the Nation's Ecosystems -

The State of the Nation's Ecosystems - According to a report commissioned five years ago by President Clinton and finally completed and released, the United States may have no streams left that are free from chemical contamination, and about one-fifth of animal species and one-sixth of plant types are at risk of extinction.
posted by dejah420 on Sep 25, 2002 - 14 comments

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