Transcript Red-Eared Slider - Invasive Species 101

Red-Eared Slider
An invasive species in Oregon
By: Lauren H.
Anuraj C.
Zoe W.O
Table of Contents
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Definition of an invasive species
Names
Desciption
Origin, how did it get here and Geological
range.
Current sitiation and future complications
What does it do?
Previous control efforts
Diet
Predators
Definition
 An
alien species that is introduced,
accidently or on purpose, to a land that is
forgien to its native habitat. Usually
causing enviornmental, economic and/or
human harm.
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Names and Classification
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Red-eared slider
 Trachemys scripta
elegans
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Organism Type:
reptile
 Fresh Water
 Warmer Climates
 Ponds, Lakes,
Marshes, Creeks and
Streams.
Description
 Broad
red stripe behind the eyes
 Silimlar to yellow sliders (live in Southest
Virginia and Northern Florida)
 Older males become Melanistic or black.
(Making idintification hard)
 Males: 12-13 cm - shell is domed
 Females: 20 cm - shell is flat
 Shells are black and cream colored with
green stripes.
Origin
 The
Red-eared slider comes from the
Mississippi River, The Gulf of Mexico and
North East Mexico.
How did they get to Oregon?
 International
pet trade was a major help in
spreading these pesty turtles around the
world.
 Also, when pet owners got bored of this
slow pet, thus releasing it into the wild
helping this specie of turtles become
incasive.
Geographical Range
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Australia
Bahrain
Caribbean
East and S.E Asia
Europe ( Spain, France, England, Cyprus)
Guam
Israel
Mariana islands
South Africa
Current situation/future
complications
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They eat small native
birds, invertebrates,
amphibians, and
other smaller turtles.
 They spread diseases
to other animals.
What does it do? (effects it
has on native species)
 Because
they are sold in pet stores, these
turtles ate moldy food causing them to get
Salmonella.
 When they mate with Native turtles, they
spread the desise.
 They also are born in large numbers
Previous control efforts
Diet - Plants
 Blue-green
and green algae
 Leaves
 Duckweed
 Emergent
 Stems
 Roots
 Fruits
 Seeds
 Plants
of vascular
Diet - Animals
 Tadpoles
 Frogs
 Small
fish
 Insects
 Crayfish
 Shrimp
 Amphipods
 Mollusks (snails)
Predators
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Crows
 Raccoons
 Otters
 Fish ( pike and bass)
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Frogs
 Snakes
 Wading birds (heron)
 skunks