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Topic: Invasive-species

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List of invasive species

Invasive species - Wikipedia, the free encyclopedia Invasive species that are closely related with rare native species have the potential to hybridize with native species. A species is regarded as invasive if it has been introduced by human action to a location, area, or region where it did not previously occur naturally (i.e., is not native), becomes capable of establishing a breeding population in the new location without further intervention by humans, and spreads widely throughout the new location. Whether noticed increases in population numbers is sufficient reason to regard a native species as "invasive" requires a broad definition of the term—but it seems reasonable to consider that some native species in disrupted ecosystems can spread widely and cause harm and in that sense become invasive. en.wikipedia.org /wiki/Invasive_species   (6867 words)

Invasive alien species: the biggest threat to Pacific biodiversity - Pacific Regional Environment Programme Invasive species can hitchhike to new islands in many ways – they can be transported in cargo and household goods, in cars or timber, in military equipment or used machinery, and in personal effects such as hiking boots and camping equipment. Invasive species can be found in the ballast water of ships or clinging to the their hulls. Invasive species are also known as introduced species or pest species, sometimes called invasive alien species. www.sprep.org.ws /topic/Invasive.htm   (1091 words)

Beware of Invasive Species Invasive species are plants and animals that are introduced into new areas in which they are not among the native flora and fauna, and because they no longer face the natural enemies or competition from their place of origin, they spread or reproduce prolifically. A determination of the likelihood of introducing or spreading invasive species and a description of the measures being taken to minimize their potential harm should be part of any process conducted to fulfill agency responsibilities under NEPA. The executive order established a National Invasive Species Council, and until an approved national list of invasive plants is defined by the council, "known invasive plants" are defined as those listed on the official noxious weed list of the state in which the activity occurs. www.tfhrc.gov /pubrds/marapr00/invasiv1.htm   (2524 words)

Invasive Species: Laws and Regulations - Executive Order 13112 (a) An Invasive Species Council (Council) is hereby established whose members shall include the Secretary of State, the Secretary of the Treasury, the Secretary of Defense, the Secretary of the Interior, the Secretary of Agriculture, the Secretary of Commerce, the Secretary of Transportation, and the Administrator of the Environmental Protection Agency. Such recommended measures shall provide for a science-based process to evaluate risks associated with introduction and spread of invasive species and a coordinated and systematic risk-based process to identify, monitor, and interdict pathways that may be involved in the introduction of invasive species. (b) "Control" means, as appropriate, eradicating, suppressing, reducing, or managing invasive species populations, preventing spread of invasive species from areas where they are present, and taking steps such as restoration of native species and habitats to reduce the effects of invasive species and to prevent further invasions. www.invasivespeciesinfo.gov /laws/execorder.shtml   (1354 words)

EPA > Water > Wetlands, Oceans, & Watersheds > Oceans, Coasts, & Estuaries > Invasive Species Invasive species means an alien species whose introduction does or is likely to cause economic or environmental harm or harm to human health. Invasive species are one of the largest threats to our terrestrial, coastal and freshwater ecosystems, as well as being a major global concern. Invasive species represent the second leading cause of species extinction and loss of biodiversity in aquatic environments worldwide. www.epa.gov /owow/invasive_species   (357 words)

Invasive Species Unit Invasive species contribute to the decline of 46% of the imperiled or endangered species in the U.S. The biological invasion of exotic plants, animals and pathogens is one of the greatest threats to the existence of native organisms and biodiversity, second only to the loss of habitat. Invasive species are plants, animals or diseases that are non-native to the ecosystem; that cause or are likely to cause economic or environmental harm; or harm to human health. Invasive species are estimated to cost a total of $137 billion annually in losses to agriculture, forestry, fisheries and the maintenance of open waterways in the U.S. You can help stop the introduction and spread of invasive species. www.mda.state.mn.us /invasives   (960 words)

Biodiversity Partnership - Invasive Species Most introduced species confront the same kinds of biological and physical limitations in their new habitats, but those that have invasive tendencies and are not too limited by natural controls can spread rapidly, with dramatic, adverse ecological and economic impacts. The spread of non-native or "exotic" species has emerged in recent years as one of the most serious threats to biodiversity, undermining the ecological integrity of many native habitats and pushing some rare species to the edge of extinction. If no action is taken to restore native species and ecosystems and to prevent future introductions, native species and ecological communities will remain vulnerable to re-invasion or to other new pests. www.biodiversitypartners.org /invasive/index.shtml   (782 words)

E-Flora BC Invasive Species Page Methods of control for invasive species range from direct hand-pulling of plants, such as is frequently done for purple loosestrife, to chemical control for widespread invasives such as knapweeds, to biological control. Help remove invasive species in your local area.  Join the efforts to remove invasives that are being conducted by groups such as the Evergreen Foundation, the Invasive Plant Council of BC, and others. Remove invasive species from your garden and do not purchase seeds or plants of invasive species. www.geog.ubc.ca /~brian/florae/invasives.html   (1009 words)

Invasive species: Minnesota DNR When nonnative species cause ecological or economic problems, they are termed "invasive" or "harmful exotic species." Minnesota's natural resources are threatened by invasive species such as the zebra mussel, Eurasian watermilfoil, purple loosestrife, gypsy moth, and garlic mustard. These species, along with new invasive species, could be easily spread within the state if citizens, businesses, and visitors don't take necessary steps to contain them. Species that have been introduced, or moved, by human activities to a location where they do not naturally occur are termed "exotic," "nonnative," "alien," and "nonindigenous." Nonnative species are not necessarily harmful, in fact the majority have beneficial purposes. www.dnr.state.mn.us /invasives   (111 words)

Invasive Plants of Ohio Invasive plants, whether they are native or non-native, have the ability to take over native plant communities, forming monocultures and displacing native plants. Invasive plants are usually characterized by fast growth rates, high fruit production, rapid vegetative spread and efficient seed dispersal and germination. Most invasive plants are difficult to control and require the use of manual and chemical techniques. www.dnr.state.oh.us /dnap/invasive   (726 words)

Environmental Quality Program Invasive species are infiltrators that invade ecosystems beyond their historic range. Many invasive species are imported into this country for various reasons such as for pets or for the fur trade. Intentional introductions involve the deliberate transfer of invasive species into native ecosystems. www.fws.gov /contaminants/Issues/InvasiveSpecies.cfm   (1676 words)

invspec.html The risk of continued introductions of exotic invasive species remains high., and is of the utmost importance to the landscape, economy, and citizens of Illinois. Invasive species cost the Illinois economy millions of dollars annually in control measures and damage, and some of these species may also adversely affect human health, displace native species, or seriously degrade environmental quality. Coincident with the introduction of both of these invasive species has been a documented decline in zooplankton, an important food source essential to the survival of young yellow perch. www.inhs.uiuc.edu /chf/pub/an_report/98_99/invspec.html   (1434 words)

APHIS News An invasive species is an alien species whose introduction does, or is likely to, cause economic or environmental harm or harm to human health. Many harmful invasive species clearly impair biological diversity by causing population declines, species extinctions, shifts in predator–prey dynamics, shifts in species niches, changes in habitat, and reductions in ecosystem complexity. Additionally, numerous invertebrate invasive species have become established in the United States, including zebra mussels, imported fire ants, Africanized honey bees, and Asian longhorned beetles, to name a few. www.aphis.usda.gov /lpa/pubs/fsheet_faq_notice/fs_aphisinvasive.html   (2135 words)

Invasive Species Initiative - Invasive Species Initiative, Invasive Species Education and biodiversity At hundreds of projects around the United States, the Conservancy is working to prevent or stop the spread of invasive species. Learn about the strategies we use to address the threat of invasive species in the U.S. and around the world. Invasive Species Initiative - Invasive Species Initiative, Invasive Species Education and biodiversity nature.org /initiatives/invasivespecies   (178 words)

alien Invasive alien species are species introduced deliberately or unintentionally outside their natural habitats where they have the ability to establish themselves, invade, outcompete natives and take over the new environments. The ecological and socio-economic impact of invasive alien species on inland ecosystems The threat to biodiversity due to invasive alien species is considered second only to that of habitat loss. www.biodiv.org /programmes/cross-cutting/alien   (364 words)

U.S. Global Change Research Information Office For example, several fig species imported into south Florida as ornamentals have become invasive because the wasps that pollinate them have independently immigrated into the country, and the resulting fruits may be dispersed by parrots introduced from various continents. The troubles with introduced species do not always originate at the borders of the country: major problems often ensue when a species from a state in which it is native moves to another in which it is not naturally found. The opponents were either unoffended by the fact that the species was an alien or unconvinced that, as the state had shown, the blue gum eucalyptus was a threat to native species. www.gcrio.org /CONSEQUENCES/vol2no2/article2.html   (7021 words)

USDA Forest Service Invasive Species Program We are aware of our significant role in addressing invasive species threats at the local, state, and national levels, as well as internationally. The goal of the USDA Forest Service invasive species program is to reduce, minimize, or eliminate the potential for introduction, establishment, spread, and impact of invasive species across all landscapes and ownerships. The Invasive Species Program integrates many divisions of the agency. www.fs.fed.us /invasivespecies   (254 words)

Wetland Science Institute--Wetland Restoration Information Series, Number 1: NOXIOUS, INVASIVE, AND ALIEN PLANT SPECIES Species that are prolific seed producers, have high seed germination rates, easily propagated asexually by root or stem fragments, and/or rapidly mature predispose a plant to being an invasive. An "alien species means, with respect to a particular ecosystem, any species, including its seeds, eggs, spores, or other biological material capable of propagating that species, that is not native to that ecosystem,"(E.O., Invasive Species). If seed or other propagules of problem species are known (or suspected) to be in the seed bank in high concentrations, it may be advisable to delay the installation of the restoration for one growing season and concentrate on pest control. www.pwrc.usgs.gov /WLI/wris1.htm   (2712 words)

Nature Works-Invasive Species Species can be native to their habitat, that means they occur naturally. A species is a group of plants or animals that are alike and can produce offspring under natural conditions. Exotic species are not native to an area. www.nhptv.org /natureworks/nwep15.htm   (181 words)

VA NHP Invasive Alien Plants List Invasive alien plants, however, escape cultivation and become agricultural pests, infest lawns as weeds, displace native plant species, reduce wildlife habitat, and alter ecosystem processes. Many alien species are well known and economically important in agriculture and horticulture, such as wheat, soybeans, and tulips. Of the 4,000 alien plant species introduced to the United States that have escaped cultivation, approximately 400 are serious invaders. www.dcr.state.va.us /dnh/invinfo.htm   (610 words)

IUCN/SSC Invasive Species Specialist Group (ISSG) Invasive species are organisms (usually transported by humans) which successfully establish themselves in, and then overcome, otherwise intact, pre-existing native ecosystems. Species suddenly taken to new environments may fail to survive but often they thrive, and they become invasive. The ISSG is a global group of 146 scientific and policy experts on invasive species from 41 countries. www.issg.org   (453 words)

C.O.D. Natural Areas: Invasive Species A 1999 Cornell University study concluded that invasive species cause damages and losses of at least $138 billion per year in the United States The problem is likely to worsen as worldwide travel and trade continue to introduce species, either intentionally or unintentionally, to new lands outside of their native ranges. The following is a list of invasive plant species commonly encountered in northeastern Illinois with links to detailed information on impacts and control of each species. An invasive specie is an organism outside its native range that does significant harm to the environment, the economy and/or human health. www.cod.edu /Visitors/prairie/invasive_species.htm   (213 words)

ECO-PROS Invasive Non-Native Species Not all non-native species are invasive and harmful. This could have a detrimental effect on native species if bees or other pollinators preferred the flowering displays of the invasive species over the native species. A non-native species could be something that brings disease to an area or to people through introduced bacteria or viruses (i.e., Ebola), or possibly a plant that would crossbreed with other plants and cause major changes to plant life. www.eco-pros.com /invasive_non-native_species.htm   (3529 words)

ISSG's Global Invasive Species Database The Global Invasive Species Database was developed by the IUCN/SSC Invasive Species Specialist Group (ISSG) as part of the global initiative on invasive species led by the Global Invasive Species Programme (GISP). The database focuses on invasive species that threaten biodiversity and covers all taxonomic groups from micro-organisms to animals and plants. The GISIN intends to test the draft schema with implementations such as invasive species checklist integration. www.issg.org /database/welcome   (318 words)

Invasive Species: Part 1 - The Threat Invasive Species is a Federal proposal that will expand and steadily eliminate the rights of property owners, the authorities of state governments, the legitimate activities of Americans, and a host of other abuses. Invasive Species will soon begin affecting all of us from boaters and outdoorsmen to gardeners and taxpayers. A range of subjects will be covered from the history, biology, and politics of Invasive Species to the Interest Groups, legalities, and both the intended and unintended consequences that will result. www.landrights.org /invasive_species/invasive1.htm   (742 words)

NBII Invasive Species Information Node (ISIN) - Home Page Invasive Species Profile XML Schema for invasive species data exchange, released for comment. NASA Satellite Technology Helps Fight Invasive Plant Species (BBSNews) Feb 15 2006. And many species originating in the US have been introduced into other parts of the world. invasivespecies.nbii.gov   (263 words)

Invasive Species Weblog Invasive species are a worldwide problem, and we will all be better off sharing more information and fewer invaders. NPR reported about efforts to control invasive plants in Arizona, and how these efforts are fueled (ha ha) by the increased threat of wildfires. Among the banned weeds discovered were invasive plants like Johnsongrass (Sorghum halepense), Canada thistle (Cirsium arvense) and jointed goatgrass (Aegilops cylindrica). invasivespecies.blogspot.com   (817 words)

WDNR - Invasive Species And new invasive species are looming on the horizon. Controlling invasive species is compounded by that fact that they lack natural checks and balances. DNR staff monitor the presence and spread of invasive species, work with partners to educate the public, and research control methods. www.dnr.state.wi.us /invasives   (379 words)

Invasive Species Invasive plant species are a threat to natural areas in Indiana. Many agencies and organizations have joined together to form the Invasive Plant Species Assessment Working Group (IPSAWG) to assess which plant species threaten natural areas in Indiana and develop recommendations regarding the use of that specific plant species. The long-term plan was develooped to address ecological and economic impacts of aquatic exotic species invasions in the waterways of Indiana and their potential threat to Lake Michigan, Lake Erie, and Ohio River basins. www.in.gov /dnr/invasivespecies   (421 words)

NatureServe: Plant Data for Download: Invasive Species Assessment Protocol The downloadable dataset here provides the results of using the Invasive Species Protocol Assessment to evaluate non-native plants for their impact on biodiversity in the U.S. This dataset will be periodically updated as additional non-native species are assessed. The protocol is designed to focus specifically on the effects non-native species have on native plants, animals, and natural communities and to make the process of assessing non-native species objective, transparent, and systematic. The protocol is intended to be applied to species as they occur over large areas, such as nations, ecoregions, provinces, or states. www.natureserve.org /getData/plantData.jsp   (413 words)

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