Learning Targets
“I can . . .”
-Give examples of how non-native, or exotic,
species get introduced by humans, whether
purposefully or accidentally.
-Define an “ invasive species.”
-Explain how invasive species can be
detrimental to biodiversity.
“FishZilla”
The Northern Snakehead
Northern Snakehead in
Louisiana?
Invasive Species
What is an invasive species?
Native Species
• DEFINITION: In America, those species
which have historically been here longer
than the white man
Exotic or “Non-native” Species
• DEFINITION: Species that are not in an
area NATURALLY
How do exotic species get here?
1. Range Extension: Humans cause a
change in the environment that extends
the species’ natural habitat
"Nay, I'll have a starling shall be taught to
speak nothing but 'Mortimer'..."
William Shakespeare
Henry IV
“Not a whit, we defy augury. There is special
providence in the fall of a sparrow. If it be now,
'tis not to come; if it be not to come, it will be
now; if it be not now, yet it will come—the
readiness is all. Since no man, of aught he
leaves, knows what is't
to leave betimes, let be.”
William Shakespeare
Hamlet
How do exotic species get here?
2. Purposeful Introduction: Humans
purposely place the species in an area
a. Starlings
b. Sparrows
c. Honeysuckle
How do exotic species get here?
3. Accidental Introduction: Humans
accidentally bring a species into an area
*Zebra Mussels
What are invasive species?
Invasive species, non-native species, invasive exotics, are
introduced usually by human activities. Invasive species are
generally thought to cause economic or environmental harm.
http://en.wikipedia.org/wiki/File:Brown_tree_snake_Boiga_irregularis_2_USGS_Photograph.jpg
Life Sciences - HHMI Outreach.
Copyright 2010 President and
Fellows of Harvard College
Invasive Species
• DEFINITION: Exotic Species which cause
damage and/or harm to human health. To
be invasive, species must meet these four
criteria . . .
1. Produce a lot of offspring
2. Grow quickly
3. Have strong defenses
4. Outcompete the native species
Is honeysuckle an invasive
species?
Design an experiment to test this
question
Your presentation must
include…
1. Question/Problem
2. Background Information/Research about
the question
3. Hypothesis
4. Experiment (Include your control and
variables)
5. Results (Chart, Tables, Pictures)
6. Conclusion (Include sources of error)
Each section is worth 5 points!
Ohio’s Top Ten Most Invasive
Species
1. Autumn Olive
2. Buckthorns
3. Common Reed Grass
4. Garlic Mustard
5. Japanese Honeysuckle
6. Bush Honeysuckle
7. Japanese Knotweed
8. Multiflora Rosa
9. Purple Loosestrife
10.Reed Canary Grass
References
•
•
•
•
•
•
•
•
•
http://en.wikipedia.org/wiki/Invasive_species
http://www.nativeamericans.com/Photos.htm
http://www.picturehistory.com/product/id/7737
http://www.eco-pros.com/invasive_non-native_species.htm
http://www.fotosearch.com/PDS043/fd004704/
http://animalphotos.info/a/topics/animals/mammals/pigs/
http://www.mypetchicken.com/Buff_Orpin-X35.aspx
http://www.sciencedaily.com/releases/2007/03/070305202649.htm
http://www.fws.gov/Midwest//Endangered/birds/Kirtland/kiwafctsht.html
• http://www.youtube.com/watch?v=MA8sXHNjaz
s
References
•
•
•
•
•
•
•
http://www.enotes.com/shakespeare-quotes/there-special-providence-fall-sparrow
http://www.state.tn.us/environment/tn_consv/archive/starlings.htm
http://caplter.asu.edu/explorers/protocol/birds/sparrow.htm
http://www.flowers.vg/flowers/00flower01.shtml?n0flower704.jpg
http://nas.er.usgs.gov/taxgroup/mollusks/images/zebra_logo.jpg
http://www.techimo.com/forum/attachments/imo-community/12174d1097913769frankenfish-strikes-great-lakes-northern_snakehead.gif
http://images.google.com/imgres?imgurl=http://www.dfompo.gc.ca/science/publications/article/img/01-06-09-01.jpg&imgrefurl=http://www.dfompo.gc.ca/science/publications/article/2009/01-06-09eng.htm&usg=__iq9cantwWP0q2sHHl8SREwO1egw=&h=448&w=495&sz=148&hl=e
n&start=9&um=1&tbnid=BnAGwVa6nznIMM:&tbnh=118&tbnw=130&prev=/images%
3Fq%3Dnorthern%2Bsnakehead%26hl%3Den%26safe%3Dactive%26rlz%3D1T4HP
NN_enUS308US308%26sa%3DN%26um%3D1
• http://www.invasivespeciesscotland.org.uk/invasi
ve_non_native_species/zebra_mussel.asp