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Latest Invasive species Stories

2012-04-25 20:24:28

Much like the fabled tortoise and the hare, the competition between native and invasive plants growing in deciduous forests in the Eastern United States is all about how the plants cross the finish line in autumn. A new study by a Syracuse University biologist has found that the leaves of invasive plants continue to function in the fall, long after their native cousins have hunkered down for the winter. The findings are counter to conventional wisdom, which held that plants living under...

2012-03-29 22:42:11

Although there has been growing recognition among researchers and policy-makers that ship-borne invasive species cause a considerable economic toll, this environmental problem often goes unaddressed because of the difficulty in quantifying annual impacts on ecosystem services. However, a new paper by researchers from the University of Notre Dame, the University of Wyoming and the Technical University of Delft in the Netherlands, assigns a dollar figure on the cost to the Great Lakes from...

2012-03-26 18:20:38

Removal of the Tamaligi tree (Falcataria moluccana), an invasive and destructive non-native tree on Tutuila Island, American Samoa greatly improves the health of its diverse native forests, according to a recently published study appearing in the journal Biological Invasions. A team of scientists from the USDA Forest Service's Pacific Southwest Research Station—Hilo and the National Park of American Samoa (NPSA) investigated how Tamaligi trees affected the composition, biomass, and...

2012-03-13 22:58:52

Biologists at Bielefeld University have developed a new method for quantifying the effect of non-native species on ecosystem functioning They can estimate whether native plants in the neighbourhood of invasive species incorporate the nitrogen fixed by the latter. The biologists examined the Sydney Golden Wattle (Acacia longifolia), an Australian shrub that has established itself in Mediterranean climates worldwide. They found that the invasive species threatens native ecosystems not only...

Invasive Species Put Antarctic Natives At Risk
2012-03-06 11:15:04

As temperatures warm along Antarctica´s outer fringes, it allows for invasive plants and organisms to be carried in inadvertently by visiting scientists and tourists, putting the pristine ecosystem at risk, researchers have found. An international team of researchers, writing in the Proceedings of the National Academy of Sciences (PNAS), said they scoured the clothes and boots of those visiting the southernmost continent and found that most were carrying plant seeds. The risks from...

2012-03-05 11:01:41

CA's birds most vulnerable to climate change Scientists from PRBO Conservation Science and the Department of Fish and Game have completed an innovative study on the effects of climate change on bird species of greatest concern. This first-of-its-kind study prioritizes which species are most at risk and will help guide conservation measures in California. "What's most exciting about the study is that our unique approach is one that other scientists and resource managers can duplicate to...

Image 1 - Human Population Primary Factor In Exotic Plant Invasions In The US
2012-02-24 04:53:36

Improved data reveals new patterns of exotic plant invasions in the United States Extensive ongoing research on biotic invasions around the world constantly increases data availability and improves data quality. New research in the United States shows how using improved data from previous studies on the establishment of exotic plant species changes the understanding of patterns of species naturalization, biological invasions, and their underlying mechanisms. The study was published in the...


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
omadhaun
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.