Transcript Invasive Species

Invasive Species in New York
State
Marlyn Orque Claro
Inwood IS 52
[email protected]
What are invasive species?
…invasive species include non-native organisms that cause economic or
environmental harm and are capable of spreading to new areas of the
state
Economic Harm
1993, the OTA estimated that a total of
$100 million is invested annually in invasive
species aquatic weed control in the US
-Introduced rats cause more than $19 billion
per year in damages
-exotic fish cause up to $5.4 billion annually,
and the total costs of introduced weeds are
estimated at around $27 billion annually
-The total damage to the U.S. native bird
population due to invasive species is
approximately $17 billion per year
-Approximately $2.1 billion in forest products
are lost each year to invasive plant pathogens
in the United States, and a conservative
estimate of the losses to U.S. livestock from
exotic microbes and parasites was $9
billion/year in 2001
-
Environmental Harm
-Snakeheads
can become invasive species
and cause ecological damage because they
are top-level predators
-Asian carp have the habit of jumping out of
the water, which can injure boaters.
Introduced to eat algae in fish ponds in
Southern U.S., escaped during flood events
-Multiflora Rose introduced for erosion control
and promoted as a "living fence" to attract
wildlife, now competes with native understory
plants
-Spiny water flea Competes with native fish
for prey, spines prevent many native fish
from eating it as prey
Invasive Species
Plants
Didymo (Rock Snot)
Phragmites
Insects
Asian Longhorned Beetle
Sirex Woodwasp
Fish and Chinese Mitten Crab
Shellfish
Snakehead Fish
Step 1: Identify the Problem


What specific problem can invasive species create in
New York State? Research information, discuss with
your partner and share.
Complete worksheet in this link:
http://www2.maxwell.syr.edu/plegal/tips/s
elect.html
Step 2: Gather Evidence

Read the articles in the following websites and gather
evidence. You may design a data table to organize evidence
from the articles.
- http://oceanservice.noaa.gov/facts/invasive.html
- http://www.invasivespecies.wa.gov/what_they_are.shtml
- http://www.env.gov.yk.ca/animalshabitat/invasivespecies.php
Step 3: Identify the Causes

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From your research identify and list the factors that caused the
problem. Cite specific data or evidence.
Complete Step 3 of the PPA
http://www2.maxwell.syr.edu/plegal/TIPS/worksheet3.html
Prepare to share your list in the class.
Homework
Finding Better Solutions
- Research current state policy in controlling
invasive species. Evaluate the policy and prepare
an argument whether the policy should be
changed or not. If you believe it must be
changed, explain changes clearly.
(Students will also complete Steps 4, 5, & 6 of
the PPA.)