ISAAC
Asian Clam
Asian clams got to the United States by the juvenile
clams attaching to boats and spread through other
human activity.
Known “bifouler” that blocks water flow to power plants
and industrial water systems.
Causes problems in canals and pipes.
Reed Canary grass
 Spread from wetland to wetland by humans, animals,
waterways, and machines
 They harbor few other plants and are little use to
wildlife.
Jimsonweed
 Native to North America
 It’s a poisonous plant
 Wildlife try to avoid it do to its odor
 When eaten it makes people hallucinate
Japanese honeysuckle
 Spread by seeds and roots
 Birds eat the seeds, which helps the spread of it
 Prevents sunlight from reaching native plants
 The vines kill and girdle small saplings
Deana McMillen & Lily Guthrie
Rusty Crayfish
.
 They destroy the plant
bed and they compete
with the native crayfish
for food
 They got here through
people using them as
bait and then releasing
them when they are not
used.
Exotic Bush Honeysuckle
 They were first introduced as
a plant used mainly in
landscaping and they are now
spread through forests by
birds and deer species.
 They invade other native
plants and compete for
resources often taking them
from other plants, killing
them off.
Multiflora Rose
 Crowds out pasture
vegetation
 The conservation
services used the plant
for erosion projects.
Then, the birds spread
the seeds from there.
Garlic Mustard
 Used as a landscaping
 These plants take away
plant, then violently
spread.
resources from native
plants, killing them.
Grass Carp
 How they got here: they were introduced to the U.S. to
control the growth of aquatic weeds.
 What they do: eat aquatic grass, algae, invertebrates,
and vertebrates.
Grass carp picture
Bull Thistle
 How they got here: got shipped over from Europe
 What do they do: litter an area so other plants cant
grow
Bull thistle picture
Oriental bittersweet
 How did they get here: introduced for an ornamental
and for erosion control
 What do they do: smothers plants and uproots trees
due to its weight
Oriental bittersweet picture
Damian, Drayton
Chinese mystery snail
 Importation from Asian food markets
 Transmits parasites and diseases
Red eared slider
 As pets then released
 Eat eggs and small aquatic species
Japanese silt grass
 Spread by roots and seeds
 Changes soil chemistry
 Introduced to US by use of packing material for
porcelain
Autumn Olive
 Spread by birds
 Affects the nitrogen cycle
Christa & Tessa
Common
carp
 The common carp tends to eat all of the plants and make
the water muddy. It increases algae abundance and
production by pooping.
 Intentionally introduced as a game fish in the 1880s.
Common Carp
Curley leaf pond weed
 Becomes really thick and clogs rivers and waterways.
Getting caught in boat motors and clogging lakes for
swimming.
 Introduced to U.S. by as a aquarium plant.
Curley Leaf Pond Weed
Tree of Heaven