-nutria denudes natural levees - damage sugarcane fields - nutria has done a lot of damage to the...
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-Nutria denudes natural levees Nutria denudes natural levees
- Damage sugarcane fields Damage sugarcane fields
- Nutria has done a lot of damage to the wetlands, Nutria has done a lot of damage to the wetlands, they gnawed through 800,000 acres of marshes in they gnawed through 800,000 acres of marshes in the past 70 years in Louisiana the past 70 years in Louisiana
- Nutria has cost a lot of money in Louisiana, we pay Nutria has cost a lot of money in Louisiana, we pay a lot of money to rebuild our marshes but then the a lot of money to rebuild our marshes but then the nutria destroys it again nutria destroys it again
- Nutria eats the base of marsh plants and it Nutria eats the base of marsh plants and it permanently destroys the plant permanently destroys the plant
- Solution to stop Nutria, fishers get $5 for every Solution to stop Nutria, fishers get $5 for every Nutria tail Nutria tail
-Smaller than a beaver but larger Smaller than a beaver but larger than a muskratthan a muskrat
- Forelegs are small compared to Forelegs are small compared to the body the body
- Males are larger than females Males are larger than females
- Small black eyes Small black eyes
- curved orange teethcurved orange teeth
- long rat looking tails long rat looking tails
1930s1930s
Nutria were released either on accident or purposely, Nutria were released either on accident or purposely, they were imported from fur farms to Louisiana. they were imported from fur farms to Louisiana. Nutria expanded throughout the Gulf Coast. Nutria expanded throughout the Gulf Coast.
1940s1940s
The population grew quickly, many reports of The population grew quickly, many reports of damage were reported. Nutria started to control damage were reported. Nutria started to control aquatic plants. aquatic plants.
1950s1950s
By the 1950s nutria started destroying many things. By the 1950s nutria started destroying many things. Nutria damaged marshes, sugarcane fields, and levee Nutria damaged marshes, sugarcane fields, and levee systems. There were now about 20 million nutrias in systems. There were now about 20 million nutrias in Louisiana. In 1958, nutria was taken off the list of Louisiana. In 1958, nutria was taken off the list of protected wildlife. protected wildlife.
1960s to 1980s1960s to 1980s
Nutria was promoted as a natural recourse. To Nutria was promoted as a natural recourse. To manage nutria as a pest, began to go against the fact manage nutria as a pest, began to go against the fact the fur industry was growing. Nutria was later the fur industry was growing. Nutria was later returned to the protected wildlife list. returned to the protected wildlife list.
-Places where Hydrilla is found- Louisiana, Places where Hydrilla is found- Louisiana, Florida, Alabama, South Carolina, Georgia, Florida, Alabama, South Carolina, Georgia, and many other states and many other states
- Hydrilla was introduced to the US in the Hydrilla was introduced to the US in the 1950s – 1960s 1950s – 1960s
- Hydrilla is a very hard plant to controlHydrilla is a very hard plant to control
- Hydrilla impacts aquatic ecosystems Hydrilla impacts aquatic ecosystems because making thick canopies that shade because making thick canopies that shade out vegetation out vegetation
- States pay million of dollars to control States pay million of dollars to control hydrillahydrilla
- Forms dense mat in different freshwater Forms dense mat in different freshwater habitats habitats
-Grow in Aquatic plant bedsGrow in Aquatic plant beds
- Rooted at the bottom of the lake and grow Rooted at the bottom of the lake and grow fast creating canopies fast creating canopies
- affect wildlife and fish populationaffect wildlife and fish population
- The Eurasian Watermilfoil plant canopy at The Eurasian Watermilfoil plant canopy at the water surface, blocks sunlight and the water surface, blocks sunlight and reduces light penetrationreduces light penetration
- This plant forms very thick at the waters This plant forms very thick at the waters surface, interferes with fishing and boatingsurface, interferes with fishing and boating
- Once it has established it growth it is Once it has established it growth it is almost imposible to remove almost imposible to remove
-The Eurasian Watermilfoil plant The Eurasian Watermilfoil plant originates from Europe and Asia originates from Europe and Asia
- It was introduced to North America It was introduced to North America through aquarium industrythrough aquarium industry
- Eurasian Watermilfoil may have Eurasian Watermilfoil may have arrived in the 1800s arrived in the 1800s
- Was documented in North America Was documented in North America in the 1940sin the 1940s
-The wetlands sustain more life than any The wetlands sustain more life than any other ecosystemother ecosystem
- Wetlands help animals because it helps Wetlands help animals because it helps them to develop new adaption's and they them to develop new adaption's and they can cope with life where the water is can cope with life where the water is critical critical
- Provide habitats for animals and plantsProvide habitats for animals and plants
- Perform natural cleansing functionsPerform natural cleansing functions
- Remove pollutants from the surface by Remove pollutants from the surface by retaining retaining
- Protect us from Hurricanes Protect us from Hurricanes
http://nas.er.usgs.gov/taxgroup/plants/docs/hy_verti.html
http://www.sciencedaily.com/releases/2008/03/080306094624.htm
http://www.nutria.com/site4.php
http://www.qc.ec.gc.ca/csl/inf/inf037_e.html
http://www.invasive.org/eastern/biocontrol/6EurasianMilfoil.html
http://www.ecy.wa.gov/programs/wq/plants/weeds/milfoil.html
http://www.nola.com/news/index.ssf/2008/02/nutria_nation_marsheating_crit.html
http://www.usatoday.com/news/nation/environment/2008-12-22-nutria_N.htm
http://www.invasivespeciesinfo.gov/aquatics/hydrilla.shtml
http://www.ecy.wa.gov/PROGRAMS/WQ/plants/weeds/hydrilla.html
http://www.nutria.com/site2.php
http://www.mciap.org/herbarium/Hydrilla.php
http://www.kingcounty.gov/environment/waterandland/lakes/plants/weed-identification/eurasian-watermilfoil.aspx