activity 73: introduced species

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Activity 73: Introduced Species Mrs. Hunter/ Mr. Egros/ Mrs. Kozuch 2011

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Activity 73: Introduced Species. Mrs. Hunter/ Mr. Egros/ Mrs. Kozuch 2011. What is an introduced species?. A species that has been moved by humans from its normal habitat to a new habitat, either intentionally or by a mistake Also often referred to as invasive species. - PowerPoint PPT Presentation

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Activity 73:Introduced Species

Mrs. Hunter/ Mr. Egros/ Mrs. Kozuch 2011

What is an introduced species?

• A species that has been moved by humans from its normal habitat to a new habitat, either intentionally or by a mistake

• Also often referred to as invasive species

Example of Introduced Species:Nile Perch

Nile Perch Notes

Name of organism Lake Victoria perch (formerly Nile Perch)

Lates niloticus

Order – Perciformes

Class – Osteichthyes (boney fish)

Phylum – Chordata

Kingdom - Animalia

Distribution Native to Lake Chad, Nile River, Zaire River, and Niger River

Introduced to Lake Victoria in the 1950s

Now present in huge numbers throughout Lake Victoria

Effects on people Huge increase in food availability for locals

Decline in smaller fisheries and increase in large fishing operations

Increase in fish exports, providing more money and jobs

Effects on ecosystems Extinction of 200 species of cichlids

Four-fold increase in algae levels, which has reduced oxygen availability in the lake

Increase in the number of insects (prey for cichlids)

Deforestation (wood needed to process Nile Perch)

Position in the food web Predator of small fish such as cichlids

Nile Perch’s only predator are people

Reasons for success No natural predators in Lake Victoria

Large, powerful fish – easily caches fish and shrimp native to Lake Victoria

Issues in the future Governments and many local people do not wish to remove Nile Perch

Population of Nile Perch may change depending on its food availability

Task

1. Use the worksheet provided to record your notes on your introduced species

2. Use the websites identified within the webquest

3. Create a wanted poster using the template provided on the P: Drive

Rubric for grading:Communicating Skills

Level 4

Above and Beyond – 12/10pts

Student accomplishes level 3 response and enhances answer such as providing additional images, diagrams or facts

Level 3

Complete and Correct 10/10pts

Student communicates ideas clearly with no technical errors (grammar, spelling or sentence structure).

Level 2

Almost there

8/10pts

Student may have several technical errors (grammar, spelling or sentence structure) but the errors DO NOT prevent the audience from understanding the message

Level 1

On your way

6/10pts

Students communication is unclear or too many technical errors (grammar, spelling or sentence structure) seriously distracts the audience from understanding the message

Level 0

Redo

0/10pts

Students’ response is missing, illegible or irrelevant

Burning Bush (Winged Euonymus)

• http://www.dcnr.state.pa.us/forestry/invasivetutorial/winged_euonymus.htm

• http://landscaping.about.com/od/landscapingshrubsbushe1/p/burning_bush.htm

Canadian Geese

• http://www.pserie.psu.edu/seagrant/ais/watershed/goose.htm

• http://www.dec.ny.gov/animals/7003.html

Common Teasel

• http://www.oardc.ohio-state.edu/weedguide/singlerecord.asp?id=850

• http://dnr.wi.gov/invasives/fact/thistle_Emarsh.htm

Garlic Mustard

•http://www.dcnr.state.pa.us/forestry/invasivetutorial/garlic_mustard.htm

•http://www.paflora.org/Alliaria%20petiolata.PDF

Japanese Beetles

• http://ohioline.osu.edu/hyg-fact/2000/2001.html

• http://ento.psu.edu/extension/factsheets/japanese-beetle

Norway Rat

• http://www.nsrl.ttu.edu/tmot1/rattnorv.htm

• http://www.idph.state.il.us/envhealth/pcnorwayrat.htm

Snakehead Fish

• http://www.washingtonpost.com/ac2/wp-dyn/A58471-2002Jul11?language=printer

• http://www.fws.gov/snakeheadfstotal.pdf

Spreading Bamboo

• http://plants.ifas.ufl.edu/parks/bamboo.html

• http://www.ecosystemgardening.com/most-hated-plants-bamboo.html