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Ecosystem

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An ecosystem is a natural unit consisting of all plants, animals and micro-organisms (biotic factors) in an area functioning together with all of the physical (abiotic) factors of the environment. An ecosystem is a unit of interdependent organisms which share the same habitat. Ecosystems usually form a number of food webs which show the interdependence of the organisms within the ecosystem.

For more information about Ecosystem, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.


News tagged with ecosystems

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Beyond sunlight: Explorers census 17,650 ocean species between edge of darkness and black abyss

Beyond sunlight: Explorers census 17,650 ocean species between edge of darkness and black abyss (w/ Video)

Biology / Plants & Animals

created Nov 22, 2009 | popularity 4.9 / 5 (15) | comments 0

Census of Marine Life scientists have inventoried an astonishing abundance, diversity and distribution of deep sea species that have never known sunlight - creatures that somehow manage a living in a frigid ...


Forest clearances sealed ancient civilisation's downfall

Forest clearances sealed ancient civilisation's downfall

Other Sciences / Archaeology & Fossils

created Nov 02, 2009 | popularity 4.9 / 5 (9) | comments 6

(PhysOrg.com) -- An ancient South American civilisation which disappeared around 1,500 years ago helped to cause its own demise by damaging the fragile ecosystem that held it in place, a study has found. ...


algae

Killer algae a key player in mass extinctions

Space & Earth / Earth Sciences

created Oct 19, 2009 | popularity 4.4 / 5 (17) | comments 4

Algae, not asteroids, were the key to the end of the dinosaurs, say two Clemson University researchers. Geologist James W. Castle and ecotoxicologist John H. Rodgers have published findings that toxin producing ...


A new day dawned fast: Recovery from marine mass extinction happened much faster than thought

A new day dawned fast: Recovery from marine mass extinction happened much faster than thought

Space & Earth / Earth Sciences

created Oct 02, 2009 | popularity 4.8 / 5 (14) | comments 0

(PhysOrg.com) -- In 1979, Luis Alvarez and his collaborators stunned the world with their discovery that an asteroid impact 65 million years ago probably killed off the dinosaurs and much of the the world's ...


Scientists IDs genesis of animal behavior patterns

Scientists IDs genesis of animal behavior patterns

Biology / Plants & Animals

created Mar 26, 2009 | popularity 5 / 5 (2) | comments 0

(PhysOrg.com) -- For the first time, MIT engineers and colleagues have observed the initiation of a mass gathering and subsequent migration of hundreds of millions of animals — in this case, fish.


Socompa Volcano

Earth's highest known microbial systems fueled by volcanic gases

Biology / Cell & Microbiology

created Mar 03, 2009 | popularity 4.8 / 5 (9) | comments 0

Gases rising from deep within the Earth are fueling the world's highest-known microbial ecosystems, which have been detected near the rim of the 19,850-foot-high Socompa volcano in the Andes by a University ...


Fish guts explain marine carbon cycle mystery

Space & Earth / Earth Sciences

created Jan 15, 2009 | popularity 4.8 / 5 (9) | comments 1

Research published today reveals the major influence of fish on maintaining the delicate pH balance of our oceans, vital for the health of coral reefs and other marine life.


Mendenhall Glacier

Glacier melt adds ancient edibles to marine buffet

Space & Earth / Earth Sciences

created Dec 23, 2009 | popularity 4 / 5 (11) | comments 7

Glaciers along the Gulf of Alaska are enriching stream and near shore marine ecosystems from a surprising source - ancient carbon contained in glacial runoff, researchers from four universities and the U.S. ...


Scientists map speed of climate change

Space & Earth / Environment

created Dec 23, 2009 | popularity 2.8 / 5 (27) | comments 25

New study finds that the average ecosystem will need to shift about a quarter mile per year to keep pace with global climate change.


Greenhouse gas carbon dioxide ramps up aspen growth

Space & Earth / Environment

created Dec 04, 2009 | popularity 3.5 / 5 (8) | comments 6

The rising level of atmospheric carbon dioxide may be fueling more than climate change. It could also be making some trees grow like crazy.


A closer look at the Hudson Canyon shows why the canyon is critical for fish

Space & Earth / Earth Sciences

created Dec 01, 2009 | popularity 5 / 5 (1) | comments 1

A series of newly discovered pits in the bottom of the Hudson Canyon, 100 miles southeast of New York Harbor, may be a key ingredient for the abundant and diverse marine ecosystem in and around the canyon, according to research ...


Researchers Establish Common Seasonal Patterns Among Bacterial Communities in Arctic Rivers

Researchers Establish Common Seasonal Patterns Among Bacterial Communities in Arctic Rivers

Space & Earth / Earth Sciences

created Nov 24, 2009 | popularity 5 / 5 (1) | comments 0

(PhysOrg.com) -- New research on bacterial communities throughout six large Arctic river ecosystems reveals predictable temporal patterns, suggesting that scientists could use these communities as markers ...


Sponges recycle carbon to give life to coral reefs

Biology / Plants & Animals

created Nov 13, 2009 | popularity 4.3 / 5 (4) | comments 1

Coral reefs support some of the most diverse ecosystems on the planet, yet they thrive in a marine desert. So how do reefs sustain their thriving populations?


Climate Change, Nitrogen Loss Threaten Plant Life in Arid Desert Soils

Climate Change, Nitrogen Loss Threaten Plant Life in Arid Desert Soils

Space & Earth / Environment

created Nov 05, 2009 | popularity 3 / 5 (9) | comments 0

(PhysOrg.com) -- In the Mojave Desert winds howl across this hottest place in North America, blowing sands across Death Valley and through empty ghost towns, swirling across treeless land for hundreds of miles. ...


Timber harvest impacts amphibians differently during life stages

Timber harvest impacts amphibians differently during life stages

Biology / Ecology

created Nov 03, 2009 | popularity 2.5 / 5 (2) | comments 0

Frogs are croaking in clear-cut forests, but not exactly in their traditional manner. University of Missouri researchers found that removing all of the trees from a section of the forest had a negative effect ...