Transcript unless - ccps-science

UNLESS
Lesson 5: Native Plants
vs. Alien Plants
WARNING!
Code Green - Alien
presence detected!
Requesting immediate
assistance in locating
and containing
invasive plant
species.
Invasive Plant Species
What’s an Exotic Species?
• An organism is considered exotic (alien,
foreign, nonindigenous, non-native) when it
has been introduced by humans to a location
outside its native or natural range.
• This designation applies to a species
introduced from another continent, another
ecosystem, and even another habitat within an
ecosystem.
SUSPECT
Name: Taraxacum
officinale
AKA: Dandelion
Hometown: Eurasia
Crime: Out-competing
native species
(produces many
seeds)
SAMPLING
• We will be using
Linear Transects to
sample our dandelion
population.
• We will count the
number of dandelion
Linear
Transects
plants within each
section of the
transects.
CAUTION
• According to witnesses several
“alien” species have been
seen in the area.
• Monitor and record ALL alien
activity.
• Prepare to debrief the teacher
once we have returned to the
classroom.
GOOD
LUCK!