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Transcript
By: Kiley Hajek
Mrs. Venesky
Pd. 3
Definition: A species whose population is so
small that it is at risk of becoming extinct
5 Most Common Reasons for Endangerment:
 Habitat loss
 Pollution
 Over Exploitaion
 Climate Change
 Disease
Prevent Endangerment by:



Learning more about the Species
Being aware of possible environmental
problems
Creating Conservation groups or clubs
Indiana Bat
Scientific Name: Myotis Sodalis
Reasons that Endangered: Cave Commercialism and
Improper Gating, Loss of Habitat, Insect pesticides,
Environmental Contaminates
Piping Plover
Scientific Name: Charadrius melodus
Reason that Endangered: Loss of Habitat by
Commercialism of Beaches, Dams flooding nesting
areas and making them too dry, Sensitivity to humans
causes them to abandon their nests, eggs being crushed
by humans, animals preying on the eggs
Bog Turtle
Scientific Name: Glyptemys muhlenbergii
Reasons that Endangered: Habitat loss, degradation,
and fragmentation due to
development, encroachment of invasive exotic plant
species
Northeastern bulrush
Scientific Name: Scirpus ancistrochaetus
Reasons that Endangered: filling and ditching in it’s
wetland habitats
Small-whorled pogonia
Scientific Name: Isotria Medeoloides
Reasons that Endangered: collecting habitat and
alteration, only 3 populations in PA
Definitions
Native: Species that has been in an area for a
long time
Introduced: Species which is brought into a new
area
Invasive: A species whose introduction causes
environmental harm
5 most common ways invasive species come into the U.S. :
1. foreign ballast water
2. hidden in wood packing material
3. hidden in other vegetation via the nursery trade
4. hidden aboard ships
5. hitchhiking on other species
Negative effects on the environment:




Increased Competition and Predation
Disease
Habitat Destruction
Genetic Stock Altercation
in PA
Wild Boar
Scientific Name: Sus scrofa Linnaeus
Origin: Eurasia
Niche in Natural Environment: Scavenger and
Nuisance
Niche in Introduced Environment: Scavenger and
Nuisance
Problems they cause: Damage Native plants and
animals
in PA
Mexican Fruit Fly
Scientific Name: Anastrepha ludens
Origin: Mexico and Central America
Niche in Native Environment: Eat fruit, part of food
chain
Niche in Introduced Environment: Eat fruit, part of
food chain
Problems they cause: Larvae attack Fruit of
Economic Value
in PA
Cane Toad
Scientific Name: Rhinella marina
Origin: South America
Niche in Native Environment: Insect control,
scavengers
Niche in Introduced Environment: Insect control,
scavengers, nuisance
Problems they cause: Preys on and competes with
native species; poisonous to pets
in PA
Chocolate vine
Scientific Name: Akebia quinata
Origin: Central China, Korea, Japan
Niche in Native Environment: Nuisance, part of
food chain
Niche in Introduced Environment: Nuisance, part
of food chain, invades under-story plant growth
Problems it causes: Outgrow, choke, and displace
native plants; monopolize nutrients, water, light, and
space
in PA
Amur maple
Scientific Name: Acer ginnala
Origin: Russian Federation, Mongolia, China, Japan, Korea
Niche in Native Environment: provides shade, shelter,
and beauty
Niche in Introduced Environment: Displaces native
shrubs and under-story trees, provides shade, shelter, and beauty
Problems it causes: out-competes native flowers, prevents
surrounding plants from growing, displaces native plant species
Definitions
Reintroduced Species: a species that is
reinstated into an area in which it was
established before but became extinct
Extirpated Species: a species that becomes
extinct from a particular area
Elk
At one time, elk were extinct in North America. In 19131927 elk were introduced to Pennsylvania and several
other states. In 1999 a relocation program released
more elk in Pennsylvania.

http://www.fws.gov
 U.S.

Fish and Wildlife Service
http://www.naturalheritage.state.pa.us
 Pennsylvania

www.invasivespeciesinfo.gov
 National

Invasive Species Information Center
intranet.iucn.org
 IUCN/SSC

Natural Heritage Program
Guidelines for Re-Introductions
http://kids.nationalgeographic.com
 National
Geographic Kids