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Latest Invasive species Stories

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2011-07-15 07:40:00

The worldwide decline of top predators, or "consumers", such as wolves, sharks and lions, is threatening to drive other species to extinction, an international team of 24 scientists reported on Thursday. The research shows for the first time the critical importance that large animals have within the world's ecosystem. "Until recently, large apex consumers were ubiquitous across the globe and had been for millions of years. The loss of these animals may be humankind's most pervasive influence...

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2011-07-14 10:15:16

Exotic marine species, including giant seaweeds, are spreading fast, with harmful effects on native species, and are increasingly affecting the biodiversity of the Mediterranean seabed. Some native species, such as sea urchins (Paracentrotus lividus), can fight off this invasion, but only during its early stages, or when seaweed densities are very low. Spanish researchers have carried out a study to look at the ability of sea urchins (Paracentrotus lividus) "“ generalist herbivores that...

2011-07-13 22:26:52

Researchers investigate the spread of invasive plant species in South America and Australia Invasive plant species in Chile pose a higher threat to its neighbour, Argentina, than vice versa. This was concluded by scientists from the University of Concepci³n in Chile and the Helmholtz Centre for Environmental Research (UFZ) after analysing the flora of both countries. In particular, 22 non-native species which occur in Chile on connecting roads leading to Argentina present a high risk...

2011-07-13 13:53:37

North Carolina State University researchers have found that a subset of fungus-farming ambrosia beetles may be in the early stages of a global epidemic threatening a number of economically important trees, including avocados, poplars and oaks. "Only about 12 species of ambrosia beetle are creating problems so far, but there are thousands of other species in the world, many of which could be devastating to any number of tree species," says Dr. Jiri Hulcr, a postdoctoral research associate at...

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2011-07-11 09:15:00

America get ready: a new delicacy may be coming to a table near you. That's right, environmentalists, consumer groups and scientists are seriously working up new solutions to control the ever rising populations of invasive aquatic species in America, and want people to step up their eating game and devour away the infestation.Among the top offenders is the lionfish. With its dark red and black stripes, spotted fins and venomous black spikes, it seems like it wouldn't make a nice meal choice....

2011-06-15 09:30:00

Revised rules will help prevent future infestations of non-native invasive insects, diseases, and plants ARLINGTON, Va., June 15, 2011 /PRNewswire-USNewswire/ -- The U.S. Department of Agriculture (USDA) has finalized changes to regulations governing international trade in plants used in gardening and landscape design, which will go into effect on June 27, 2011. The Nature Conservancy has encouraged the USDA to revise these antiquated regulations to improve the ongoing efforts by the...

2011-05-20 13:20:36

This week the scientific journal Ecology Letters has published a synthesis of the ecological impacts of invasive plants worldwide. This global analysis has been based on more than one thousand studies that in total describe the impacts of 135 invasive plant species. The lead author, Dr. Montserrat Vilà, a professor at the Spanish Higher Research Council (CSIC) adds: "This assessment would have been impossible to achieve ten years ago, because the evidence was anecdotal, it...

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2011-05-17 05:55:00

Hundreds of species across Europe are under threat of extinction in a 'crisis of biodiversity', according to European Union Environment Commissioner Janez Potocnik. Animals such as the Iberian lynx of southern Spain, the Mediterranean monk seal off the coast of Greece and Turkey, and the Bavarian pine vole of the Alps could soon be gone, Potocnik said. According to the warning issued this month, up to one-quarter of Europe's native species are now threatened with extinction....

2011-04-25 16:40:38

Amphibian declines around the world have forced many species to the brink of extinction, are much more complex than realized and have multiple causes that are still not fully understood, researchers conclude in a new report. The search for a single causative factor is often missing the larger picture, they said, and approaches to address the crisis may fail if they don't consider the totality of causes "“ or could even make things worse. No one issue can explain all of the population...

2011-04-16 00:47:04

A new paper appearing in the Proceedings of the National Academy of Sciences (PNAS) suggests that people, governments, and institutions that shape the way people interact may be just as important for determining environmental conditions as the environmental processes themselves. "Tipping points," qualitative changes in an ecosystem that often result in reduced ecosystem health and are difficult and costly to reverse increasingly concern environmental scientists. The prevailing assumption...


Latest Invasive species Reference Libraries

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2008-04-30 23:09:30

The Pacific Oyster (Crassostrea gigas), is the native oyster of the Pacific coast of Korea, Japan and China. It has been introduced to North America, especially in Puget Sound, Washington, and to the Australian states of Tasmania and South Australia. It is an important commercial harvest in all of these places, as well as New Zealand where the Pacific oyster has replaced the native rock oyster, Crassostrea glomerata, as the main commercial species. The Pacific oyster is an invasive species...

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Word of the Day
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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