News tagged with food chain
Genome provides new weapon against sea lice
An international team of researchers has now sequenced nearly the entire genetic material of the sea louse. On 1 March the Institute of Marine Research gave the world open access to this research source, which ...
May 29, 2012 |
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How to avoid a global food crisis
The world faces a major challenge in the coming decades as global food demand is poised for unprecedented growth.
May 16, 2012 |
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Sea lions fuel ocean life
Like whales, sea lions are contributing to marine ecosystems in the most fundamental way possible, research by a Flinders graduate has found.
May 15, 2012 |
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Marine food chain becomes clearer with new revelations about prey distribution
A new study has found that each step of the marine food chain is clearly controlled by the trophic level below it – and the driving factor influencing that relationship is not the abundance of prey, but ...
May 02, 2012 |
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Carbon-consuming life-forms in Antarctica
Lake Bonney in Antarctica is perennially covered in ice. It is exposed to severe environmental stresses, including minimal nutrients, low temperatures, extreme shade, and, during the winter, 24-hour darkness. ...
Apr 23, 2012 |
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Fukushima leak may have flowed into Pacific: TEPCO
About 12 tonnes of radioactive water has leaked at Japan's crippled Fukushima Daiichi nuclear power plant, with the facility's operator saying Thursday that some may have flowed into the Pacific Ocean.
Apr 05, 2012 |
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Whole Foods to stop sale of unsustainable seafood
(AP) -- Whole Foods Market said Friday that it will stop selling fish caught from depleted waters or through ecologically damaging methods, a move that comes as supermarkets nationwide try to make their seafood ...
Mar 30, 2012 |
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Diatom biosensor could shine light on future nanomaterials
(PhysOrg.com) -- A glow coming from the glassy shell of microscopic marine algae called diatoms could someday help us detect chemicals and other substances in water samples. And the fact that this diatom can ...
Mar 23, 2012 |
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Study confirms oil from Deepwater Horizon disaster entered food chain in the Gulf of Mexico
Since the explosion on the BP Deepwater Horizon drilling rig in the Gulf of Mexico on April 20, 2010, scientists have been working to understand the impact that this disaster has had on the environment. For ...
Mar 20, 2012 |
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Loss of rare species can harm ecosystems
(PhysOrg.com) -- Here’s another reason to cheer for the little guy. A new study co-authored by Matthew Bracken, assistant professor of biology in Northeastern’s College of Science, has found that ...
Mar 19, 2012 |
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Plastic nanoparticles affect behavior and fat metabolism in fish
Nanoparticles have many useful applications, but also raise some potential health and ecological concerns.
Nanotechnology / Bio & Medicine
Feb 22, 2012 |
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New York eyes shark fin trade ban
A group of New York legislators on Tuesday unveiled a draft law banning trade in shark fins, saying the practice, which serves the market for Chinese shark fin soup, was decimating the ocean predators.
Feb 21, 2012 |
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Deepwater Horizon disaster could have billion dollar impact: new study
The Deepwater Horizon oil spill in the Gulf of Mexico in April 2010 will have a large economic impact on the U.S. Gulf fisheries.
Feb 17, 2012 |
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Understanding how bacteria come back from the dead
Salmonella remains a serious cause of food poisoning in the UK and throughout the EU, in part due to its ability to thrive and quickly adapt to the different environments in which it can grow. New research involving a team ...
Feb 02, 2012 |
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Filmmaker sounds alarm over ocean of plastic
On Midway atoll in the North Pacific, dozens of young albatross lie dead on the sand, their stomachs filled with cigarette lighters, toy soldiers and other small plastic objects their parents have mistaken ...
Feb 02, 2012 |
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Food chain
Food chains, also called food webs, describe the eating relationships between species within an ecosystem or a particular living place. Many types of food chains or webs are applicable depending on habitat or environmental factors.
Organisms are connected to the organisms they consume by lines representing the direction of organism or energy transfer. It also shows how the energy from the producer is given to the consumer. Typically a food chain or food web refers to a graph where only connections are recorded, and a food network or ecosystem network refers to a network where the connections are given weights representing the quantity of nutrients or energy being transferred.
Sometimes, on a food chain, each animal is separated with an arrow. If it is pointing right, it means "is eaten by" or "is consumed by".
Every single food chain known to Man begins with a type of autotroph, whether it be a plant or some kind of unicellular organism.
For more information about Food chain, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
