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Exotic Species. By: Yunchao Zhang and Noah Lee. Photos by Greenberg art and NPS. What are exotic species? . Non-native, Non-endemic “Unnatural”, “Artificial” Usually not domesticated Brought in from outside its natural distribution NOT ALL are problematic Most are invasive.

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By yunchao zhang and noah lee

Exotic Species

By: Yunchao Zhang and Noah Lee

Photos by Greenberg art and NPS


What are exotic species
What are exotic species?

  • Non-native, Non-endemic

  • “Unnatural”, “Artificial”

  • Usually not domesticated

  • Brought in from outside its natural distribution

  • NOT ALL are problematic

  • Most are invasive

Photo by Wikimedia


The negative impact
The Negative Impact

  • Huge Threat to biodiversity-second only to habitat destruction

  • Ability to change a habitat

  • Endangers native species

  • Alters gene pool

  • Costs $1.4 trillion every year globally

  • Very difficult to get rid of

Photo by Pnej


Causes
Causes

  • Increased international trade

  • Increased tourism

  • When European settlers brought hundreds of plants to North America

  • Accidental and intentional release

  • Increased sea travel-Ballast

Photo by Birdphotos


Specific examples
Specific Examples

  • Asia Chestnut Blight Fungus

  • Zebra Mussel

  • Australian Paperbark Tree

  • Brown Tree Snake

  • Nile Perch

  • Sea Lamprey

  • Goats of St. Helena


Asia chestnut blight fungus
Asia Chestnut Blight Fungus

Photo by Delaware Nature Society


Zebra mussel
Zebra Mussel

Photo by Lakeside Views


Australian Paperbark Tree

Photo by Uniserve.edu


Brown Tree Snake

Photo by Onionhound on Wikimedia


Nile perch
Nile Perch

Photo by Jirehtoursandtravels



Goats of St. Helena

Photo by Armin Kubelbeck


What can you do
What can you do?

  • Financial support

  • Do not buy non native plants

  • Do not release animals into the wild

  • Do not “Pack a pest”

  • Volunteer

  • Be Educated


What others are doing
What Others are Doing

  • Global Invasive Species Program

  • Federal Invasive Species Council

  • Parks, NPS, UN, EPA, NFWF

  • Ballast Water Regulation

  • More Conducted Studies

  • Preventing Potential Invaders


Contacts
Contacts

  • Local parks

  • The NPS, EPA, and NFWF

  • Voice your opinion to EVERYONE

Photos by James Montgomery Flagg


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