Transcript Exotic Species - cloudfront.net

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
Photo by Wikimedia
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
 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
 Asia
Chestnut Blight Fungus
 Zebra Mussel
 Australian Paperbark Tree
 Brown Tree Snake
 Nile Perch
 Sea Lamprey
 Goats of St. Helena
Asia Chestnut
Blight Fungus
Photo by Delaware Nature Society
Photo by Lakeside Views
Photo by Uniserve.edu
Photo by Onionhound on Wikimedia
Nile
Perch
Photo by Jirehtoursandtravels
Photo by Armin Kubelbeck
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
 Global
Invasive Species Program
 Federal Invasive Species Council
 Parks, NPS, UN, EPA, NFWF
 Ballast Water Regulation
 More Conducted Studies
 Preventing Potential Invaders
Contacts
 Local
parks
 The NPS, EPA, and
NFWF
 Voice your opinion
to EVERYONE
Photos by James Montgomery Flagg