The rapid growth of China’s industrial and transportation infrastructure is helping to establish non-native species throughout that country and “setting the stage for potentially rampant environmental damage,” according to an article in the April 2008 issue of BioScience.
The article, by a Chinese-US team, describes how more than 400 alien plants and animals are now considered invasive in China, including some that are causing serious harm even though they were first documented in the country only a few years ago.
The authors of the article are Jianqing Ding and Mingxun Ren of the Wuhan Institute of Botany, Richard N. Mack of Washington State University, Hongwen Huang of the South China Institute of Botany, and Ping Lu of the Northeast Agricultural University, Harbin, China. Many factors are contributing to the developing problems, including an increase in the number of ports of entry, the number of travelers, and the amount of imported goods. An expanding network of express highways and more domestic air travel also make it easier for organisms to “hitch-hike” into and around the country.
Many invasive plants were brought to China as ornamental or fodder species. Canada goldenrod was brought in as an ornamental and was distributed via the domestic nursery and garden industries; it has now invaded more than 20 provinces. Insects have spread even faster: the American vegetable leaf miner, first detected in China in 1993, now occurs throughout the country.
Ecosystem disturbance around major construction projects such as the Three Gorges Dam has stimulated biological invasions of damaging plants such as broadleaf fleabane as well as alligator weed and water hyacinth, both of which were once cultivated for animal fodder with official encouragement. The recently completed Quinghai-Tibet railway is also thought likely to accelerate the spread of invasives.
Even the preparations for the 2008 Beijing “Green Olympics” pose a threat: non-native grass seed and other plants continue to be imported as part of an effort to beautify the urban landscape. These plants could serve as carriers for insect pests.
One preliminary estimate puts China's annual economic losses from invasive insects and plants at $14.5 billion. The article includes a call for “enhanced research, public education, and governmental attention” to the problem of invasive species in China.
Nonstop Tranport of Cargo in Nanomachines
20.11.2018 | Max-Planck-Institut für molekulare Zellbiologie und Genetik
Researchers find social cultures in chimpanzees
20.11.2018 | Universität Leipzig
Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.
Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...
Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.
Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...
Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure
Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...
19.11.2018 | Event News
09.11.2018 | Event News
06.11.2018 | Event News
20.11.2018 | Physics and Astronomy
20.11.2018 | Medical Engineering
20.11.2018 | Physics and Astronomy