News tagged with invasive plants
New insights into invasive plant management
Over a decade of research at the U.S. Department of Agriculture (USDA) has resulted in the development of a new matrix for invasive plant management. The model was created by scientists with the Agricultural ...
Feb 06, 2012 |
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Exotic plants do not necessarily become invasive
Introduced plant species do not necessarily have to outgrow indigenous plant species. That makes it difficult to predict the potential harm of exotic plants. NWO-funded researcher Annelein Meisner recently published an article ...
Dec 19, 2011 |
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Thanksgiving in space may one day come with all the trimmings
(PhysOrg.com) -- Future astronauts spending Thanksgiving in space may not have to forgo one of the most traditional parts of the day's feast: fresh sweet potatoes.
Space & Earth / Space Exploration
Nov 21, 2011 |
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Gypsies, graveyards and mysterious plants
A U.S. Department of Agriculture (USDA) scientist has confirmed the identity of a strange grass-like sedge discovered in a Mississippi graveyard, and believes the appearance of the potentially invasive plant is linked to ...
Oct 19, 2011 |
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Foreign insects, diseases got into US
(AP) -- Dozens of foreign insects and plant diseases slipped undetected into the United States in the years after 9/11, when authorities were so focused on preventing another attack that they overlooked a ...
Oct 10, 2011 |
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'Non-invasive' cultivar? Buyer beware
Cultivars of popular ornamental woody plants that are being sold in the United States as non-invasive are probably anything but, according to an analysis by botanical researchers published in the October issue of BioScience. Tiffan ...
Oct 07, 2011 |
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Digital panoramas of rangelands could be rich source of research data
A scientist at the U.S. Department of Agriculture (USDA) is exploring how rangeland ecologists could use high-resolution digital panoramas to track landscape changes.
Sep 20, 2011 |
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China's plant resources need additional protections
China needs to change where it sites its nature reserves and steer people out of remote rural villages toward cities to protect its valuable but threatened wild plant resources, according to an article published in the September ...
Sep 07, 2011 |
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Are all alien encounters bad?
The pages of ecological history are filled with woeful tales of destruction from non-native species -- organisms that originated elsewhere.
Aug 30, 2011 |
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Rural road maintenance may accidentally push spread of invasive plants
Road maintenance may accidentally spread the seeds of invasice plants, according to Penn State researchers.
Aug 09, 2011 |
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Eco-goats are latest graze in Maryland
Cities and organizations in the US state of Maryland have found an original and ecologically sound method to cut the weeds from their parks and gardens: Bring in the goats.
Jul 30, 2011 |
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War on willows
Willows are major environmental weeds of riverbank habitats across much of south-eastern Australia. They obstruct water flow, increase water temperature, change water chemistry and can displace native riverine ...
Jul 29, 2011 |
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Hikers spread invasive plant seeds accidentally
Hikers may be inadvertently helping to spread invasive plants across the largest national park in Australia's New South Wales, a study has found.
Jul 25, 2011 |
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Chile is more dangerous for Argentina than vice versa
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 Concepción in Chile and the Helmholtz Centre ...
Jul 13, 2011 |
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Giant hogweed can cause burns and blindness
(PhysOrg.com) -- The U.S Department of Agriculture is warning residents in a variety of states to be on the lookout for the Heracleum Mantegazzianum, or giant hogweed. This plant in native to Central Asia ...
Jul 11, 2011 |
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Invasive species
Invasive species is a phrase with several definitions. The first definition expresses the phrase in terms of non-indigenous species (e.g. plants or animals) that adversely affect the habitats they invade economically, environmentally or ecologically. It has been used in this sense by government organizations as well as conservation groups such as the IUCN (International Union for Conservation of Nature).
The second definition broadens the boundaries to include both native and non-native species that heavily colonize a particular habitat.
The third definition is an expansion of the first and defines an invasive species as a widespread non-indigenous species. This last definition is arguably too broad as not all non-indigenous species necessarily have an adverse effect on their adopted environment. An example of this broader use would include the claim that the common goldfish (Carassius auratus) is invasive. Although it is common outside its range globally, it almost never appears in harmful densities.
Because of the ambiguity of its definition, the phrase invasive species is often criticized as an imprecise term within the field of ecology. This article concerns the first two definitions; for the third, see introduced species.
For more information about Invasive species, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
