Invasive species By: Dyshon Jones Joe McDonald/Animals Animals—Earth Scenes
What is an Invasive species?
An Invasive species is an organism that is not indigenous or native to its environment.
Invasive species can be a plant, animal or insect.
Invasive species can be harmful to the environment, other species, and extremely costly to you and me.
Worst Invasive Species
European Rabbit- Has been responsible for the extinction of over 8 different mammals
Zebra Mussel- Has been detrimental to a variety of species in Great lakes region
Ship Rats- Have caused the extinction of certain birds, plants and small mammals
Feral Pig- have done millions of dollars worth of destruction done to property and farmland
Can be harmful to environment
Can be costly
Can destroy property
Can be harmful to native species
Can be used as a form of non chemical pest control
May impact an environment positively
Can cause drastic changes habitat
Can endanger animal species. For example certain insects eat other insects that could be food for birds or small rodents
Can spread unique geographical diseases
Asian Tiger Mosquito
Originates in southern and eastern asia
First seen in 1985 in Houston Texas
Known for aggressive biting (frequent)
Do Not transfer HIV/Aids but do give EEE (eastern equine encephalitis).
EEE tend to affect horses the most and has a 80-90% fatality rate.
Smccan. “ Asian tiger mosquito
Asian Longhorn Beetle
Originally from eastern Asia
First noted in New York 1996 and Chicago 1998
Infest large trees such as Maples and horse chestnut trees.
Since there is no natural predator scientist say there could be serious ecological problems.
R. Anson Eaglin. “Asian Long horned Beetle”.
Invasive animals are often introduce to an area for the purpose of pest control.
Invasive animals are hard to predict and ultimately become a problem themselves
For example five cats were brought to South Africa for a mouse problem. Five cats turned into 3400 cats and endangered the bird population.
Types of invasive animals
Brown tree snakes
BURMES PYTHON Python molurus bivittatus
Originate in southeast Asia
Popular among snake handlers and pet owners
Are potential threat because of size, no natural predators and have become a problem because of irresponsible owners.
Tambako the Jaguar, Burmese Python 4
Originally from the Black Sea and Caspian Sea in Central Asia
Accidentally brought to America
First seen in Great lakes and have been threatening natural inhabitants because of overpopulation.
Originally from South America
Brought to america to be famed for there furs but many were let go because of failing farmers.
They eat the tall grass and many other nutrients important to the wetlands of Chesapeake Bay. This animal has become a major problem to the food web in the Chesapeake bay.
Michelle Maani, Nutria
Usually come From overseas and are usually exotic looking or have unique qualities. Such as Drought intolerance or are extremely fast growing.
They can be dangerous to native plants and search and kill other plants. (example mile-a-minute, purple loosestrife, and kudzu)
They reproduce in high numbers and spread very extensively and well.
100 million dollars spent to control invasive plants.
Types of invasive plant
Lythrum salicaria (purple loosestrife)
Ailanthus altissima (Tree of haven)
Hedera helix (English Ivy)
Tree of Haven ( Ailanthus altissima )
Grows In abandoned alleys
Known for how quickly trees are formed and size of growth
Can cause sidewalk damage or can even emerge from already cracked sidewalks
Cheryl Moorehead. “Alainthus Altissima
Cover Most parts of North America
Notoriously known for growing so high that they cover up other plants lower than itself and killing them
Unless maintained they are advised to not be planted
Invasive species can be costly to us and our property
Can cause disease
Can be harmful to other creatures and there habitats
Can even extinct entire breeds
Sometimes good but overall are never a good thing for anybody
Invasive species are an ongoing and increasingly more critical problem that must be recognized.
Chris. “5 worst invasive species”. http://www.environmentalgraffiti.com/offbeat-news/the-5-worst-invasive-species-in-the-world/463 . November 20, 2011.
“ Invasive Plants”. The United states National Arboretum. www.usna.usda.gov . December 4. 2009. http://www.usna.usda.gov/Gardens/invasives.html . November 19, 2011.
Princeton University. "Do not harm invasive species that pollinate, study warns." ScienceDaily , 16 Nov. 2011. Web. 27 Nov. 2011. http://www.sciencedaily.com/releases/2011/11/111116104514.htm .
Robert Hilton. “ Two Invasive Insect Species from Asia: The Asian Tiger Mosquito and The Asian Longhorn Beetle”. www.proquest.com . December 2000. http://www.csa.com/discoveryguides/insect/overview.php . November 27, 2011.
R. Anson Eaglin. “Asian Long horned Beetle”. Photograph. www.Flickr.com . Usda.gov. July 23, 2009. http://www.flickr.com/photos/usdagov/4878925300/ . November 27, 2011.
Smccan. “ Asian tiger misquito”. Photograph. www.Flickr.com . Smccan. http://www.flickr.com/photos/deadmike/170729124/sizes/z/in/photostream/ . November 27, 2011.
The Greenmiles. “English Ivy in Arlington”. Photograph. www.Flickr.com . The Greenmiles. http://www.flickr.com/photos/7856240@N05/5195068381/sizes/l/in/photostream/ . November 27, 2011.
The mighty Canadian Jucepig. “Seashells of the Seashore”. Photograph. www.Flickr.com . The mighty Canadian Juicepig. http://www.flickr.com/photos/juicepig/2150744572/sizes/o/in/photostream/ . November 27, 2011