(PhysOrg.com) -- Invasive species cost an estimated $1.4 trillion annually in their environmental and economic impacts worldwide and are second only to habitat loss as a threat to biodiversity. As scientists struggle with ...
Ecology
Aug 10, 2011
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The DNA evidence is in, and Ben Franklin didn't do it. Genetic tests on more than 1,000 Chinese tallow trees from the United States and China show the famed U.S. statesman did not import the tallow trees that are overrunning ...
Ecology
Jul 29, 2011
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The majority of orchids are found in habitats where light may be a limiting factor. In such habitats it is not surprising that many achlorophyllous (lacking chlorophyll), as well as green, orchids depend on specific mycorrhizal ...
Plants & Animals
Jul 12, 2011
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As mountain pine beetles march across the forests of western North America, these insects may kill millions of pine trees during a single outbreak. A rise in overall temperatures over the past several years has increased ...
Ecology
May 31, 2011
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(PhysOrg.com) -- Contrary to what most people may think, the speciation rates of plants are not linked to the first development of a novel physical trait or mechanism. New international research shows that plants fiddle around ...
Evolution
May 13, 2011
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Two U.S. Department of Agriculture (USDA) scientists may have discovered "the map to El Dorado" for the American elm-a previously hidden population of elms that carry genes for resistance to Dutch elm disease. The disease ...
Ecology
Mar 30, 2011
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Just as a company creates new, better versions of a product to increase market share and pad its bottom line, an international team of researchers led by Brown University has found that plants tinker with their design and ...
Plants & Animals
Mar 29, 2011
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Biodiversity around the world is increasingly threatened by global warming, habitat loss, and other human impacts. But what does this loss of species mean for the functioning of ecosystems that humans depend on for goods ...
Ecology
Mar 3, 2011
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Do mountain tops act as sky islands for species that live at high elevations? Are plant populations on these mountain tops isolated from one another because the valleys between them act as barriers, or can pollinators act ...
Plants & Animals
Jan 21, 2011
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Using particles that are 1/100,000 the width of a human hair to deliver drugs to cells or assist plants in fighting off pests may sound like something out of a science fiction movie, but these scenarios may be a common occurrence ...
Bio & Medicine
Nov 16, 2010
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