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Latest Invasive species Stories

Invasive Plants A Problem In Europe
2014-02-03 12:51:48

Pensoft Publishers Some introduced (i.e. non-native) plants become abundant, threaten species richness and the well-functioning of ecosystems, the economy, or health (plant invasion). Environmental policies that attempt to restrict the expansion of non-native species are based on a consensus among scientific experts that invasions are a serious environmental problem. An example of a problematic non-native species in many parts of the world is Fallopia japonica, the Japanese knotweed that...

Dispersal Patterns Are Key To Invasive Species' Success
2014-01-21 12:48:06

Duke University Bacterial test of a theory has implications for ecology and infectious disease In 1859 an Australian farmer named Thomas Austin released 24 grey rabbits from Europe into the wild because it "could do little harm and might provide a touch of home, in addition to a spot of hunting." By the end of the century, the rabbits had begun to overrun native ecosystems, reaching nationwide numbers of 600 million by 1950. They were propagating under a principle known as the Allee...

2014-01-17 23:04:36

An article published in the latest issue of Invasive Plant Science and Management features a survey of natural resource professionals and ranchers in Colorado and Wyoming. Lawrence, Kansas (PRWEB) January 17, 2014 Downy brome is an aggressive, invasive winter annual grass and may be the most abundant plant in the western United States. Ranchers and natural resource professionals agree: downy brome, also called cheatgrass, is a problem. The consensus, however, ends there. These two groups...

Plants Develop Competitive Strategies In Extreme Desert Environments
2014-01-01 06:53:13

redOrbit Staff & Wire Reports - Your Universe Online Plants in extreme desert environments develop effective strategies to compete for the area’s limited resources, according to new research out of the University of Arizona published in the American Journal of Botany. Although deserts are often thought of as barren, inhospitable places, numerous plants and animals have adapted to this harsh environment, where they are often forced to compete with rivals for scarce resources such...

Researcher Finds 'Goldilocks' Effect In Snail Populations
2013-12-04 08:18:59

University of Iowa Finding may one day help control invasive species A University of Iowa researcher has discovered that a “Goldilocks” effect applies to the reproductive output of a tiny New Zealand snail—considered a troublesome species in many countries—that may one day help environmentalists control their spread. Known in the United States as the “New Zealand mud snail,” the freshwater snail (Potamopyrgus antipodarum) grows to a length of about one-quarter inch in...

2013-11-20 23:20:36

The global market for ballast water treatment equipment was valued at nearly $1.4 billion in 2012 and is expected to reach $2.1 billion in 2013. BCC Research projects the market to grow to $8.5 billion by 2018, and register a five-year compound annual growth rate of 32.9% from 2013 to 2018. Wellesley, Mass. (PRWEB) November 20, 2013 According to a new technical market research report, Ballast Water Treatment: Technologies and Global Markets from BCC Research (http://www.bccresearch.com),...

Study Shows Invasive Plants More Likely To Be Replaced By Other 'Invasives'
2013-11-20 14:16:55

University of California - Santa Barbara Among the most impressive ecological findings of the past 25 years is the ability of invasive plants to radically change ecosystem function. Yet few if any studies have examined whether ecosystem impacts of invasions persist over time, and what that means for plant communities and ecosystem restoration. UC Santa Barbara's Carla D'Antonio, Schuyler Professor of Environmental Studies, has conducted one of the only long-term studies of plant invader...

Researchers Show Invasive Sparrows Immune Cells Sharpen As They Spread
2013-11-20 13:39:25

University of South Florida Scientists unlock mysteries of invasive species by studying English sparrows which have spread to Kenya. When invasive species move into new areas, they often lose their natural enemies, including the microbes that make them sick. But new research from evolutionary biologists at the University of South Florida has found that adjustments in the immune system may help house sparrows, one of the world’s most common bird species, thrive in new areas. In...

Invasive Plant Thrives Because It Adapts Quickly To Local Climates
2013-10-17 14:25:07

University of Toronto University of Toronto research has found that purple loosestrife – an invasive species that competes with native plants for light and nutrients and can degrade habitats for wildlife – has evolved extremely rapidly, flowering about three weeks earlier as it has spread to northern Ontario. This has allowed populations of the species to thrive in the colder climate with a more than 30-fold increase in seed production. "The ability of invasive species to rapidly...

European Shrimp Win Predatory Battles With An American Invader
2013-10-11 12:24:02

Pensoft Publishers A shrimp from America has been invading Europe's rivers and lakes for several decades, but something seems to be preventing this colonist from becoming numerous and problematic, like so many other invaders - such as the Californian grey squirrel and American crayfish. Could the resident European shrimp have something to do with this? Jaimie Dick and his colleagues mapped the occurrence of the interloper and found it only existed where native shrimp were absent or...


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
penuche
  • A fudgelike confection of brown sugar, cream or milk, and chopped nuts.
'Penuche' is a variant of 'panocha,' a coarse grade of sugar made in Mexico. 'Panocha' probably comes from the Spanish 'panoja, panocha,' ear of grain.
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