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News tagged with ecosystems

A classic model for ecological stability revised, 40 years later

A famous mathematical formula which shook the world of ecology 40 years ago has been revisited and refined by two University of Chicago researchers in the current issue of Nature.

Biology / Ecology

created Feb 19, 2012 | popularity 4.1 / 5 (8) | comments 4 | with audio podcast

Hearty bacteria help make case for life in the extreme

(PhysOrg.com) -- The bottom of a glacier is not the most hospitable place on Earth, but at least two types of bacteria happily live there, according to researchers.

Biology / Cell & Microbiology

created Jan 19, 2012 | popularity 4.5 / 5 (4) | comments 1 | with audio podcast

ARM deals efficiency ace with big.LITTLE and Cortex-A7

(PhysOrg.com) -- Intel has been slow playing catch-up to ARM in the mobile area, but, based on the latest announcement from ARM, Intel will need to work all the harder to upstage a show of innovation in the ...

Electronics / Hardware

created Oct 21, 2011 | popularity 4.5 / 5 (4) | comments 1 | with audio podcast report

Harvesting of small fish species should be cut: study

(PhysOrg.com) -- New research on the fishing of small fish species near the bottom of their food chains suggests harvesting at levels previously thought to be sustainable could have devastating effects on ...

Biology / Ecology

created Jul 22, 2011 | popularity 4.8 / 5 (8) | comments 5 | with audio podcast report

Ocean's harmful low-oxygen zones growing, are sensitive to small changes in climate

(PhysOrg.com) -- Fluctuations in climate can drastically affect the habitability of marine ecosystems, according to a new study by UCLA scientists that examined the expansion and contraction of low-oxygen ...

Space & Earth / Earth Sciences

created Jun 17, 2011 | popularity 5 / 5 (11) | comments 7 | with audio podcast

Deep sea animals stowaway on submarines and reach new territory

Marine scientists studying life around deep-sea vents have discovered that some hardy species can survive the extreme change in pressure that occurs when a research submersible rises to the surface. The team's ...

Biology / Plants & Animals

created May 24, 2012 | popularity 5 / 5 (3) | comments 3 | with audio podcast

Seagrasses can store as much carbon as forests

(Phys.org) -- Seagrasses are a vital part of the solution to climate change and, per unit area, seagrass meadows can store up to twice as much carbon as the world's temperate and tropical forests.

Space & Earth / Environment

created May 22, 2012 | popularity 4.4 / 5 (10) | comments 18 | with audio podcast

Mixed bacterial communities evolve to share resources, not compete

New research shows how bacteria evolve to increase ecosystem functioning by recycling each other's waste. The study provides some of the first evidence for how interactions between species shape evolution when there is a ...

Biology / Cell & Microbiology

created May 15, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Ancient plant-fungal partnerships reveal how the world became green

Prehistoric plants grown in state-of-the-art growth chambers recreating environmental conditions from more than 400 million years ago have shown scientists from the University of Sheffield how soil dwelling fungi played a ...

Biology / Plants & Animals

created May 15, 2012 | popularity 5 / 5 (5) | comments 2 | with audio podcast

Warming affects ecosystems not just biodiversity

The four-degree rise in temperature predicted by the end of this century could change the way ecosystems work even if it doesn't affect biodiversity.

Biology / Ecology

created May 09, 2012 | popularity 4.2 / 5 (5) | comments 0 | with audio podcast

Scientists core into California's Clear Lake to explore past climate change

(Phys.org) -- University of California, Berkeley, scientists are drilling into ancient sediments at the bottom of Northern California's Clear Lake for clues that could help them better predict how today's ...

Space & Earth / Earth Sciences

created May 03, 2012 | popularity 5 / 5 (2) | comments 16 | with audio podcast

Handful of heavyweight trees per acre are forest champs

Big trees three or more feet in diameter accounted for nearly half the biomass measured at a Yosemite National Park site, yet represented only one percent of the trees growing there.

Space & Earth / Environment

created May 02, 2012 | popularity 5 / 5 (5) | comments 0 | with audio podcast

Study shows experiments underestimate plant responses to climate change

Experiments may dramatically underestimate how plants will respond to climate change in the future. That's the conclusion of an analysis of 50 plant studies on four continents, published this week in an advance online issue ...

Space & Earth / Environment

created May 02, 2012 | popularity 4.1 / 5 (9) | comments 14 | with audio podcast

Pacific islands may become refuge for corals in a warming climate, study finds

Scientists have predicted that ocean temperatures will rise in the equatorial Pacific by the end of the century, wreaking havoc on coral reef ecosystems. But a new study shows that climate change could cause ocean currents ...

Space & Earth / Environment

created Apr 29, 2012 | popularity 3.7 / 5 (3) | comments 3 | with audio podcast

New purple crab species found in Philippines

Four new species of freshwater crab, bright purple in colour, have been discovered in the biologically diverse but ecologically-threatened Philippines, the man who found them said Saturday.

Biology / Plants & Animals

created Apr 22, 2012 | popularity 4.6 / 5 (20) | comments 9

Ecosystem

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.