Invasive, Endangered and
Reintroduced Species of PA
By Nate Morgus
Endangered Species
• An endangered species
is a species that is close
to becoming extinct
because it’s numbers
are decreasing.
The most common
threats to endangered
species that lead them to
be endangered are:
•Habitat destruction
•Over hunting
•Pollution
•Introduced (invasive)
species
•Disease
Prevention
• You can do some simple
everyday things to help Some of the best ways to
help out are:
prevent endangered
•Recycle
species.
•Use less energy
•Use products that are
environmentally friendly
•Help out to protect
environments and
ecosystems
Indiana Bat
Indiana bats are endangered for several reasons. The main ones
being:
• Hibernation disturbances
• Starvation during winter
American Bittern
The American Bittern is endangered due to:
• Loss of habitat
• Destruction of breeding areas
Peregrine Falcon
Peregrine falcons
are threatened
because:
• The pesticide
DDT
Bog Blue Grass
Bog blue grass is
threatened by
• Their habitats
being drained
for agricultural
or recreational
purposes
• Animal grazing
• Overgrowth
Canada Spikesedge
Canada Spikesedge
is threatened
mostly in
Pennsylvania due
to habitat
destruction.
Invasive species…
• Native species are
species that are native
to a specific are and are
not introduced.
• Introduced species are
species that are taken
out of their natural
living area to a different
area
• Invasive species are
species brought in to an
area from somewhere
else that take over an
ecosystem or habitat.
How are invasive species are moved
around ?
• Invasive species are brought in to area most
commonly by humans
• Habitat restoration
• Pest control
• Fish stocking
• Recreational activities
Invasive species negatively impact our
environment
• Invasive species threaten native species
• Decrease biodiversity
• Alter the genes of species to make them more
susceptible to disease by interbreeding
Wild Boar
• Sus scrofa Linnaeus
• Wild boars are native to Eurasia
• In their natural habitat wild boars
are predators but don’t usually
eat meat.
• In their introduced habitat they
are considered dangerous pests.
• The biggest problems with these
boars are they can be viscous
predators and have been known
to attack animals such as dogs.
European Starling
• Sturnus vulgaris
• European starlings are
native to Europe
• In their natural habitat
starlings are pest birds
that roost where ever
they can
• In their introduced
habitat there is little to
no difference
• Their droppings can
have toxins that can kill
fully matured trees
Emerald Ash Bore
• Agrilus planipennis Fairmaire
• It is native to Asia
• In Asia and in America, they have
killed tens of millions of trees.
• They are considered a pest wherever
they are found.
• They will bore in to fully matured
trees and lay their eggs in them and
the young will eat the trees.
• These logs are often cut down and
moved to other areas spreading this
pest.
Reintroduced Species
• Any species that was at once gone from an
area but was later brought back by humans or
some other way are called reintroduced
species.
Gray Wolf
• The gray wolf (Canis Lupus) was once extinct
from Yellowstone National Park
• For 70 years there were no wolves in the
entire park
• But in 1996 the first wolves were released in
to the park thanks to biologists
• Now the gray wolf population is healthy in the
park.
Bibliography
• http://www.portal.state.pa.us/portal/server.pt
?open=514&objID=621014&mode=2
• http://www.batmanagement.com/Batcentral/
batspecs.html#indiana
• http://www.centerforplantconservation.org/c
ollection/cpc_viewprofile.asp?CPCNum=3544
• http://plants.usda.gov/java/profile?symbol=EL
GE