Transcript endangered species

ENDANGERED SPECIES
Chapter 1.2
SPECIES AT RISK
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Species whose populations decline below a
certain level are considered to be at risk.
In Canada, more than 250 species of plants
and animals are at various degrees of risk.
Why are Species at Risk?
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The reasons for an ecosystem decline, are
the same reasons why certain species are
put at risk.
1. Loss of Habitat
2. Pollution
3. Diseases
4. Climate Change
5. Over Harvesting
HIGH PROFILE AT-RISK SPECIES
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BALD EAGLE
PANDA BEAR
BUFFALO’S
See Page 15 of text to look at Canada’s “atrisk” species.
The word “at-risk” is used because it
encompases all five levels.
Classification system for At-Risk
Species
 1.
EXTINCT – A species that is not
found anywhere
 EXAMPLES:
 Blue Walleye (Type of Fish-1965 )
 Passenger Pigeon ( 1914 )
Extinct Species
Passenger Pigeon
Blue Walleye
2. ENDANGERED
A
species that is close to extinction in
all parts of Canada or in a
significantly large location.
 EXAMPLES:
 Eastern Cougar ( very rare sightings)
 Beluga Whale ( St. Lawrence River )
 Gorillas
 Atlantic Salmon ( very shortly )
Endangered Species
Beluga Whale
Endangered Species cont.
Eastern Cougar
Gorilla
Atlantic Salmon
3. EXTIRPATED
 Any
species that no longer exists in
one part of Canada, but can be found
in others
 EXAMPLES:
 Grizzly Bear ( no longer in Man. and
Sask but found in Alberta and BC.)
Grizzly Bear
4. THREATENED
 Any
species that is likely to become
endangered if factors that make it
vulnerable are not reversed.
 EXAMPLES:
 Wood Bison ( small number)
 Anatum Peregrine Falcon ( captive
breeding is helping to restore
population.)
Threatened
Peregrine Falcon
Wood Bison
5. VULNERABLE or Special
Concern
 Any
species that is at risk because of
low or declining numbers at the
fringe of its range or in some
restricted area.
 EXAMPLES:
 Grey Fox
 Atlantic Cod
 Blue Heron
 White tail Deer
Vulnerable/Special Concern
Grey Fox
Atlantic Cod
Blue Heron
WhiteTailed
Deer
PLEASE ANSWER
QUESTION # 2 PAGE 15
OF TEXT
ANSWERS TO QUESTION #2
 A)
Threatened
 B) Endangered
 C) Extirpated
Endangered Species in Canada
Booklet and Worksheet