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Endangered Species

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					Endangered Species


   Objectives: Explain how fish and wildlife become extinct,
   rare, endangered, or threatened. Discuss recovery
   strategies used to manage a specific endangered
   species. Explain the importance of saving an
   endangered species.
“ The last word in ignorance is the man who
  says of an animal or plant: What good is it?
  If the land mechanism as a whole is good,
  then every part is good, whether we
  understand it or not… Who but a fool would
  discard seemingly useless parts? To keep
  every cog and wheel is the first precaution
  of intelligent thinking” –Aldo Leopold
Endangered Species Act

   The Endangered Species Act was passed in
    1973 by congress and signed by president
    Richard Nixon
   The ESA was developed in an effort to
    reduce the increasing rate of extinction of
    plants and animals in the United States
Endangered Species Act

   The U.S. Fish and
    Wildlife Service is
    charged with the task of
    identifying species of
    plants and animals and
    classifying them.
Classifications

   Extinct Species are no longer living on the
    earth.
   Endangered Species are those that are in
    danger of becoming extinct unless they are
    protected
   Threatened Species are those that are likely
    to become endangered in the future unless
    conservation measures are taken
Classifications

   Species of Concern are those that need to be
    monitored because there are factors that may
    cause them to become threatened or
    endangered
   Candidate Species are those not currently
    listed as threatened or endangered but may
    be as information is gathered
   Rare Species are those that only exist in
    small numbers.
Terms

   Critical Habitat is an area required for a
    species’ normal needs and survival
   Take is defined as to harass, harm, pursue,
    hunt, shoot, trap, kill, capture, or collect a
    listed species
Alabama Threatened or Endangered
Species
   Alabama ranks 4th in the nation in the number
    of threatened or endangered species.
   As of 2005 there are 5 mammals, 4 birds, 6
    reptiles, 1 amphibian, 12 fish, 40
    invertebrates, and 18 plants.
   The high number of species is probably due
    to the natural diversity of the state.
Gray Bat   Mammal
           Endangered
Indiana Bat   Mammal
              Endangered
Red-Cockaded Woodpecker       Bird
                          Endangered
Wood Stork       Bird
             Endangered
Bald Eagle       Bird
             Threatened
Alabama Red Bellied Turtle       Reptile
                             Endangered
Flattened Musk Turtle       Reptile
                        Threatened
Gopher Tortoise       Reptile
                  Threatened
Eastern Indigo Snake       Reptile
                       Threatened
Red Hills Salamander   Amphibian
                       Threatened
Gulf Sturgeon       Fish
                Threatened
Alabama Beach Mouse
Perdido Key Beach Mouse
Green Sea Turtle
Hawksbill Sea Turtle
What causes Endangerment?

   Species become Endangered due to:
    -Threats to Habitat
    - Limited Range
    - Physical or Biological Factors (like disease
    or food supply)
Why save them?

   Each species plays a role in the environment,
    a species’ extinction could adversely effect
    other species.
   Also, we must ensure that this planet is
    enjoyable for future generations.
Recovery Strategies

   The Bald Eagle was on the endangered
    species list not long ago, but efforts have
    been made to bring it back.
   Several factors contributed to it’s decline.
   DDT
   Nesting ground disturbances
   Reduced habitat
Recovery Strategies

   Any strategy must first account for the
    animals’ food sources, cover, and range.
   With the Bald Eagle, DDT was outlawed
   There habitat and nesting grounds are now
    protected

				
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posted:9/18/2012
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