News tagged with plant biodiversity
DNA 'barcode' for tropical trees
Nov 04, 2009 |
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In foods, soil samples or customs checks, plant fragments sometimes need to be quickly identified. The use of DNA “barcodes” to itemize plant biodiversity was proposed during the 1992 Rio de Janeiro Summit. ...
Extinction risk to plant biodiversity may occur at lower levels of atmospheric CO2 than previously considered
Jun 29, 2009 |
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(PhysOrg.com) -- Scientists have traced a sudden collapse in plant biodiversity in ancient Greenland, some 200 million years ago, to a relatively small rise in atmospheric carbon dioxide which caused a rise in the Earth’s ...
Sudden Collapse in Ancient Biodiversity: Was Global Warming the Culprit?
Space & Earth / Earth Sciences
Jun 18, 2009 |
4.1 / 5 (17) |
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Scientists have unearthed striking evidence for a sudden ancient collapse in plant biodiversity. A trove of 200 million-year-old fossil leaves collected in East Greenland tells the story, carrying its message ...
Fertilization intensifies competition for light and endangers plant diversity
Apr 30, 2009 |
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When grasslands are fertilized their productivity is increased but their plant diversity is diminished. In the last 50 years levels of plant-available nitrogen and phosphorous have doubled worldwide. This additional supply ...
Search results for plant biodiversity
Golden Oldie: Key Role for Ancient Protein in Algae Photosynthesis
9 hours ago |
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The discovery that an ancient light harvesting protein plays a pivotal role in the photosynthesis of green algae should help the effort to develop algae as a biofuels feedstock. Researchers with the Lawrence ...
In Greenland, warming fuels dream of hidden wealth
16 hours ago |
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(AP) -- Gert Ignatiussen returns to this fjord-front Inuit town with the spoils of his hunting trip. Six seals, all killed with a single shot to the head.
New Switchgrass Germplasm Collected in Florida
Nov 26, 2009 |
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(PhysOrg.com) -- Agricultural Research Service (ARS) scientists and cooperators have collected 46 new populations of switchgrass in Florida, adding valuable new accessions to the germplasm collection of this ...
Whiteflies sabotage alarm system of plant in distress
Nov 26, 2009 |
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(PhysOrg.com) -- When spider mites attack a bean plant, the plant responds by producing odours which attract predatory mites. These predatory mites then exterminate the spider mite population, thus acting ...
Ginkgo biloba doesn’t prevent cardiovascular events but may have potential peripheral artery disease benefits
Nov 26, 2009 |
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(PhysOrg.com) -- Ginkgo biloba didn’t prevent cardiovascular death or major events such as heart attack and stroke in people age 75 and older, but the herb may affect peripheral vascular disease, according to research reported ...
Variable Temperatures Leave Insects wtih a Frosty Reception
Nov 25, 2009 |
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(PhysOrg.com) -- For the first time, scientists at The University of Western Ontario have shown that insects exposed to repeated periods of cold will trade reproduction for immediate survival.
Beer Here
Nov 25, 2009 |
4 / 5 (1) |
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(PhysOrg.com) -- Drinking beer is a simple act, but making beer is not. It starts out with genetics and tens of thousands of barley varieties and ends with a clear ambrosia that belies the time, effort and technology that ...
UQ archaeology digs into the life behind Pompeii
Other Sciences / Archaeology & Fossils
Nov 25, 2009 |
3 / 5 (4) |
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(PhysOrg.com) -- Brisbane may be 2000 years and half-a-world away from Pompeii, but it hasn’t stopped a UQ archaeologist from digging up some hidden treasures.
Destruction spreads 'like a disease'
Nov 25, 2009 |
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(PhysOrg.com) -- People have cleared more than a quarter of the world’s forests and half of its grasslands, according to a paper published today in the Proceedings of the Royal Society by researchers from The University of Que ...
Rare woodland plant uses 'cryptic coloration' to hide from predators
Nov 25, 2009 |
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It is well known that some animal species use camouflage to hide from predators. Individuals that are able to blend in to their surroundings and avoid being eaten are able to survive longer, reproduce, and ...
List of search results for plant biodiversity
