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- The
Topic:
- Invasive
Species
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- Easier - Invasive
species occur outside their natural range. They are
nonnative plants and animals that harm or endanger
native plants and animals or other aspects of
biodiversity. Alien invasive species occur in all
groups of plants and animals. They include
competitors, predators, pathogens and parasites.
They have invaded almost every type of native
ecosystem and caused hundreds of extinctions.
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- Harder - Whether
called invasive, nonnative, alien, exotic, or non
indigenous; introduced species are those life forms
that have evolved elsewhere and been purposely or
accidentally moved to a new location. Some have
invaded habitats by themselves (e.g., migrating
wildlife, plants, and animals rafting on floating
debris); however, human exploration, colonization,
and commercial trade have dramatically increased
the diversity, scale, and impact of the invasions.
Introduced species often find no natural enemies in
their new habitat and therefore spread quickly and
easily.
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- Some nonnative species have been deliberately
introduced. Kudzu for instance was a nonnative
plant introduced in the United States to control
soil erosion. European birds were brought here to
make colonists feel more at home. Game fish have
been widely transferred to stock sport fishing
waterways. Some agricultural crops and trees have
escaped farms, plantations, and ranches to become
pests. The importation of agricultural and forestry
products has brought assorted pest species and
diseases into new areas. Nonnative ornamental
plants are used in landscaping around homes and
businesses. Many have moved into natural
landscapes, some with significant ecological or
economic impacts. Increased trade in exotic pets
has led to an increasing variety of species that
have escaped or been released by owners. The
aquarium trade has contributed to large number of
aquatic species being accidentally or intentionally
released into waterways. Aquaculture has also
increased the spread of fish and other aquatic
species and associated diseases. Huge metal
containers used in shipping goods via boat, train,
and truck provide entry for seeds and small animals
to new locales. Thousands of species of marine
organisms were and are moved around the world on
ship bottoms, and hundreds more have been moved
globally by the wholesale transfer of edible
oysters for 'replanting. It is estimated that more
than 10,000 marine species each day may hitch rides
around the globe in the ballast water of cargo
ships. Flooding can also transport nonnative
aquatic and marsh species to new regions.
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- Invasive species are a real threat to our
environment and economy. Economic costs of
nonnative species invasions in the United States
reach billions of dollars each year. These
biological invasions produce severe, often
irreversible impacts on agriculture, recreation,
and natural resources. Invasive species threaten
biodiversity, habitat quality, and ecosystem
function. They are the second greatest threat to
native species, behind habitat destruction. They
have contributed to the decline of over forty
percent of U.S. endangered and threatened species.
Introduced species also present an ever-increasing
threat to food and fiber production.
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- Exotic
Introductions (Chapt. 9 of Biodiversity
and Conservation by P. J. Bryan)
- http://darwin.bio.uci.edu/%7Esustain/bio65/lec09/b65lec09.htm
- This is an Australian website of an online
hypertext book that covers invasive species.
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- Growing
Pains Facts about Weed Invasions in the Western
United States from the Bureau of Land
Management
- http://www.blm.gov/education/weed/pain/
- Weeds began entering this country in earnest in
the mid-1800s, and new arrivals continue to this
day. These plants have spread at an alarming rate
because unlike native species, there are no native
insects, fungi, or diseases to control their growth
and spread.
- Other Related BLM Websites:
- 2) Weeds Hall of Shame http://www.blm.gov/education/weeds/hall_of_shame.html
- 3) What's Wrong With This Picture http://www.blm.gov/education/weed/weed.html
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- Invasive
Species Specialist Group
- http://www.issg.org/
- This huge website is provided by the
organization that monitors threats from invasives
and control or eradication methods for World
Conservation Union (IUCN) members, conservation
practitioners, and policy-makers.
- Not-To-Be-Missed Sections:
- 2)100 of the World's Worst Invasive Alien
Species
- http://www.issg.org/database/species/search.asp?st=100ss&fr=1&sts=
- 3) Global Invasive Species Database http://www.issg.org/database/welcome/
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- Non-native
Invasive Species in the Great Lakes at
TEACH Great Lakes
- http://www.great-lakes.net/teach/pollution/ans/ans_1.html
- 140 non indigenous or invasive, species have
become established in and around the Great Lakes
since the 1800s. Due in large part to increases in
the volume of shipping traffic, the introduction of
new 'exotic' species has increased dramatically
over the past 50 years.
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- After visiting several of the
websites, complete one or more of the
following projects:
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- Join the Fight Against Invasive
Species. Get ideas about the actions
to take at sites like What
You Can Do in the Fight Against Invasive
Species and How
Can You Prevent the Spread of
Nonindigenous Species? .
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- Complete An Invasive Species
WebQuest. Follow or adapt the
procedures found at one of the following
webQuest projects.
- 1) Invaders by J. Boothby, J. Grimes,
K. Ells, and B. Chamberlin http://www.people.virginia.edu/~bc2j/webquest/index.html
- 2) Invasive Species Webquest by S.
Deas and K. Pepper (Grades 6 - 7)
- http://web.mala.bc.ca/webquests3/invasivespecies/intro.html
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- Adopt a Roadside or Park Area.
In many areas, invasive weeds have crowded
out native plants, harming animal habitats
and sometimes increasing erosion. You and
your interested friends can help fight and
reverse this damage. Find some good ideas
for adopting an area and improving the
environment at the Bureau of Land
Management's Hands-on
Learning webpage and sites like
What's
Wrong With This Picture and Volunteers
Wage War on Weeds in Colorado. Be sure
to coordinate your activities and work
closely with the land manager or
appropriate officials in your area.
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- Have Any Species Been
Mislabeled? Not all nonnative species
are recognized as invasive. Some useful
resources connected to this issue includes
sites like Should
We Show Tolerance For Some Invasive
Species? by W. Gibbons, Position
Statement on Invasive Species, and
Myths
of Invasive Species by N. Kassulke.
Are there any Non-native species that you
believe should not be labeled as invasive?
Make a case to support your opinion.
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- Identify the Top Ten Invasive
Species. Decide what the top ten
invasive species are in your region.
Present your findings to the community.
Select one or more avenues to inform the
public: published article, forum or
presentation in the community, poster(s),
website, etc.
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- More Alien Species Websites
- Center for
Invasive Plant Management
- http://weedcenter.org/
- This is the website of a coalition of agencies,
organizations, and individuals interested in
managing invasive plants and maintaining healthy
ecosystems in western North America.
- Other Invasive Plant Sites:
- 2) All That's Green Is Not Beholden by B.
Ikenson
- http://www.enn.com/news/enn-stories/2001/03/03062001/weeds_40440.asp
- 3) Impact of Invasive Plants on Species and
Habitats at Risk in Canada by E. Haber
- http://infoweb.magi.com/~ehaber/impact.html
- 4) Invasive & Noxious Plants at the USDA
Plants Database
- http://plants.usda.gov/plants/cgi_bin/topics.cgi?earl=noxious.cgi
- 5) Invasive Species in Australia http://arts.adelaide.edu.au/Geogenvst/adams/1binvas.htm
- 6) Noxious, Invasive, and Alien Plant Species
at the Wetland Science Institute
- HTTP://WWW.PWRC.USGS.GOV/WLI/wris1.htm
- 7) Weeds Gone Wild: Alien Plant Invaders of
Natural Areas from the
- National Park Service http://www.nps.gov/plants/alien/
- 8) Wildland Invasive Species Program from the
Nature Conservancy
- http://tncweeds.ucdavis.edu/
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- Great
Reshuffling: How Alien Species Help Feed the Global
Economy by J. A. McNeely
- http://www.iucn.org/biodiversityday/reshuffling.htm
- This paper is an examination of the history and
ecology of the global trade in species of plants
and animals.
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- Invasive
Non-Native Species
- http://www.eco-pros.com/invasive_non-native_species.htm
- This article outlines the second worst threat
to the existence of native creatures and
biodiversity - - the biological invasion of alien
plants and animals.
- Similar Websites:
- 2) Cracking Down on Invasive Species from
The Forestry Source
- http://www.safnet.org/archive/crackdown399.htm
- 3) Invasive Species: Fast Facts from
Environmental Media Services http://www.ems.org/invasivespecies/sub2_invasive_species.html
- 4) Invasive Species Threaten Healthy Ecosystems
from Environmental News Network
- http://www.enn.com/enn-news-archive/1999/05/051799/goodinvaders_3227.asp
- 5) Protecting Native Species and Ecosystems
from Invasive Species from the Union of
Concerned Scientists http://www.ucsusa.org/globalresources/bio_invasives.html
- 6) Some Species Arent Welcome
- http://www.earthchangestv.com/biology/0927everyonefighting.htm
- 7) What are Invasive Species from the Center
for Biological Informatics
- http://www.nbii.gov/disciplines/botany/what.html
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- Invasive
Species
- http://www.invasivespecies.gov/
- On this site you can learn about the impacts of
invasive species and the Federal government's
response, as well as read select species profiles
and find links to agencies and organizations
dealing with invasive species issues.
- Other Similar Websites:
- 2) Alien Species: A Slow Motion Explosion from
the Environmental News Network
- http://www.invasivespecies.org/resources/index.html
- 3) America's Least Wanted: Alien Species
Invasions of U.S. Ecosystems from the
- Nature Conservancy http://consci.tnc.org/library/pubs/dd/toc.html
- 4) Beware of Invasive Species http://www.tfhrc.gov/pubrds/marapr00/invasiv1.htm
- 5) Fact Sheet: Invasive Species from the
Ecological Society of America
- http://esa.sdsc.edu/invas3.htm
- 6) Invasive Species (Links-page) at Native
Species Network
- http://www.ncal.verio.com/~nsn/page4.html
- 7) Invasive Species (Links-page) at
California Environmental Resources Evaluation
- System http://ceres.ca.gov/cgi-bin/theme?keyword=Invasive%20species
- 8) Invasive Species (Links-page) at
Ecosystem Restoration Technology
- http://ecorestoration.montana.edu/Invasive/home.htm
- 9) Invasive Species at American
Lands
- http://www.americanlands.org/forestweb/invasive.htm
- 10) Invasive Species http://www.ggw.org/RochesterEnvironment/invasive.htm
- 11) Invasive Species at the U.S. Fish &
Wildlife Service
- http://fisheries.fws.gov/FWSMA/MAIS.htm
- 12) Invasive Species Program at the U.S.
Fish & Wildlife Service http://invasives.fws.gov/
- 13) Invasive Species at Wildlife
Services http://www.aphis.usda.gov/ws/btsproj.html
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- Invasive
Species News from Tidepool
- http://www.tidepool.org/subjects/id.artshow.cfm?category=invasive
- This archive of news stories on invasive
species comes from an online conservation
publication.
- Other Online Articles:
- 2) Non-native Earthworms, Other Invasive
Species Devastating U.S. Forest and River
- Ecosystems
- http://www.eces.org/articles/static/97046280072863.shtml
- 3) Some Species Arent Welcome by J. B.
Verrengia from ABC News
- http://abcnews.go.com/sections/science/DailyNews/invaders990927.html
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- Nonindigenous
Aquatic Species (NAS) from the United
States Geological Survey
- http://nas.er.usgs.gov/
- This site has been established as a central
repository for accurate and spatially referenced
biogeographic accounts of non indigenous aquatic
species.
- Related Websites:
- 2) Aquatic Invaders from Sea Grant's
National Aquatic Nuisance Species Clearinghouse
http://www.cce.cornell.edu/aquaticinvaders/
- 3) Biological Pollution: Aquatic Invasive
Species http://www.nemw.org/biopollute.htm
- 4) Center for Aquatic and Invasive Plants from
the University of Florida
- http://aquat1.ifas.ufl.edu/welcome.html
- 5) Impacts of Invasive Species http://www.ortepa.org/pages/ei19.htm
- 6) Impact of Invasive Species on Reptiles and
Amphibians by J. E. Lovich, Western Ecological
Research Center http://www.werc.usgs.gov/cc/invasive/
- 7) Invasive Species: The Problem at
LakeNet
- http://www.worldlakes.org/Invasive%20Species%20problems.htm
- 8) Pathways of Aquatic Introductions
- http://www.wsg.washington.edu/outreach/mas/aquaculture/pathways.html
- 9) What Are Aquatic Nuisance Species and Their
Impacts?
- http://www.anstaskforce.gov/ansimpact.htm
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- Non-native
Ants
- http://www.acusd.edu/~tmcglynn/exotic.htm
- This site presents the known names and
geographic distribution data of the known nonnative
ant species of the world.
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- Position
Statement on Invasive Species from the
American Seed Trade Association
- http://www.amseed.com/documents/invasive102899_1.html
- Learn of the concerns of the seed trades
related to the February 3, 1999 Executive Order
that created the Invasive Species Council.
- Related Websites:
- 2) Executive Order on Invasive Species
- http://bluegoose.arw.r9.fws.gov/FICMNEWFiles/eo.html
- 3) National Invasive Species Act of 1996
http://library.law.unc.edu/ocean-coastal/nisa.html
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- Sea Grant
Nonindigenous Species Site (SGNIS)
- http://www.sgnis.org/
- This is the site of a national information
center that contains a comprehensive collection of
research publications and education materials on
zebra mussels and other aquatic nuisance species.
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- What's
in My Neighborhood? from the U.S.
Department of Agriculture
- http://invasivespecies.gov/geog/state/statemain.shtml
- Learn about the invasive species in your state.
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- Websites of State, Regional, Country
Agencies / Organizations
- Abstracts
from the Importance of Native and Invasive Species
in Land Management
- (Colorado) http://www.cnr.colostate.edu/RES/srm/PlantAbstracts.htm
- Boat
& Water Safety: Minnesota Boating Guide
from the Dept. of Natural Resources
- http://www.dnr.state.mn.us/information_and_education/water_safety/bg-equ09.html
- Alien
Invasive Species of Pakistan
- http://www.edu.sdnpk.org/biod.htm
- Control
and Eradication of Invasive Species in
Galapagos
- http://www.darwinfoundation.org/invasive/default.htm
- Exotic
and Invasive Species on the Colorado
Plateau
- http://www.cpluhna.nau.edu/Biota/invasive_exotics.htm
- Exotic
Plant Species (British Columbia,
Canada)
- http://www.ucfv.bc.ca/biology/Biol210/1999/Exotic/Exotic_plant.htm
- Hawaiian
Ecosystems at Risk Project (HEAR)
Hawaii and the Pacific Basin
- http://www.hear.org/
- Invasive
Exotic Species (South Florida)
- http://sofia.usgs.gov/sfrsf/rooms/species/
- Invasive
Species in the Great Lakes Region
- http://www.great-lakes.net/envt/flora-fauna/invasive/invasive.html
- Invasive
Species from Environment
Australia
- http://www.ea.gov.au/biodiversity/invasive/index.html
- Invasive
Species (Hawaii) Links-site
- http://www2.ctahr.hawaii.edu/adap2/hottopics/invasive_species.htm
- Invasive
Species at Wisconsin Dept. of Natural
Resources
- http://www.dnr.state.wi.us/org/land/er/invasive/index.htm
- Invasive
Species Alert! from King County,
Washington
- http://dnr.metrokc.gov/wlr/waterres/marine/exotic.htm
- Invasive
Species of Virginia http://www.virginiaplaces.org/invasives.html
- Nevada
Invasive Species Initiative Information
http://www.invaders.nv.blm.gov/info.htm
- Rangeland
Noxious Weeds and Invasive Species
(University of Arizona)
- http://ag.arizona.edu/OALS/agnic/weeds/home.html
- Top
Twenty Invasive Species of New York
http://www.ipcnys.org/ipc_twenty.html
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invasive specie
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plant
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insect
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animal
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microorganisms
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non indigenous specie
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nonnative specie
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introduced specie
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migration
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hitchhiker
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biodiversity
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habitat quality
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economic threat
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environmental threat
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pest
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invasion
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accidental relocation
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ecosystem function
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removal
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containment
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control
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ballast
water
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transplant
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biological diversity
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National
Invasive Species Act
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noxious weed
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exotic specie
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harmful
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deliberate introduction
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Invasive
Species Executive Order
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endanger
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native creature
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natural balance
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alien specie
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competition
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nature
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- Created by
Annette
Lamb and
Larry
Johnson,
8/01.
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