rough draft endangered species The Bronx High School of Science by nikeborome


									    Species Endangerment

 By: Kyle Shultz, Cecilia Moog, Kevin
Sakagami, Justin Yu, Yeiro De La Cruz
What's the problem?

• Species endangerment or rather endangered species are
  organisms that face imminent extinction (extinction is the complete
  annhilation of all members of that particular species or
  taxons/subspecies). That is a huge disruption in an ecosystem's
  energy flow and these organisms have essential roles in recycling
  energy that keeps all living things alive.
• The problem is that in the last 100 years, the number of endangered
  species has grown by more than double of what it was. This is from
  the causes of species endangerment, and the causes have done
  more damage recently (last 40 years)
• Not only have the amount of species edangered have increased in
  the last 100 years, so have the amount of extinct species (about 50
  have gone extinct over past 100 years). Some speculate that those
  numbers will increase dramatically if the destruction of animal
  habitats are not stopped.
Terms Regarding Endangered Species
• Vulnerable Species: These are species that are capable of being
  endangered. This could be based upon location or human impact
• Threatened Species: These are species that are being threatened
  by something, whether it be human impact or natural impact, that
  could possibly endanger the population
• Endangered Species: These are species that are fighting for
  survival, because the population of these species are low and if it
  continues to stay this way, they could become extinct
• Extinct Species: These species are species that are no longer
  believed to be on earth. This could be due to humans destroying
  their habitat or a natural disaster.

Mental Note: Extinct in the Wild comes before extinct and mans that the
only living individuals of that species are in captivity and could hopefully
move back down on the species endangerment scale.
Causes of the problem

 There are many factors that lead to the
endangerment of species such as:

• (*emphasis on*) Habitat destruction ~ Human Expansion
• Introduction of exotic species into environments they aren't
  indigenous to causing competition and extreme predation
• Overexploitation of resources
• Disease (ex. fungal disease that is putting 1/3 of the world's
  amphibian species on the endangered species list)
• Pollution
• Poaching/Whaling of endangered species
The Extent of This Problem
Polar Bears Captured between 1960-1998

As of currently, the polar bear population is around As shown in the graph, the number of
20,000-25,000 but when humans hunt around 4% of Indiana bats are severely decreasing in
the polar bear bear population combined with other    many caves and are basically at almost 0
factors such as global warming, polar bears will     in many of the caves as of 2007.
eventually become extinct
Left: Red Wolf Cub (though not pure bred red wolf because pure red
wolves are extinct) Right: Minke Whale (targeted for whaling quota)
How it affects our environment, human
health, and economy
 • Species endangerment is a result of harmful actions towards
   the environment. In addition, if species become extinct,
   gaps in the food chain are created, causing more species to
   become endangered.
 • Human health is greatly effected by species
   endangerment. For example if all the snakes in the world
   were to die out there would be an increase in bugs and
   pests that carry diseases such as malaria.
 • Another effect on our economy is that the natural beauty in
   our world would diminish and would be lost forever if not
   restored. Our world shapes us and we shape our world.
   Shouldn't we restore our world for so that our future
   generations will be able to live good lives.
 As children, small creatures endlessly fascinate us; as adults, we can protect them so as to inspire future
- Les E. Watling
Data on Impact of Species
                • Here we see
                  how bad
                  has gotten over
                  the past 30-40
                  years alone
What we can do to prevent species
• Stop the useage of pesticides ~ use biological methods such
  as natural predation and use of crop rotation.
• Stop deforestation
• Reduce the destruction of natural habitats.
• Donate money to charities such as the World Wildlife Fund
• Cut down on overexploitation
• Stop putting exotic organisms in ecosystems/environments
  that are not native to them.
• Recycle our resources (if possible)

      We're not saying you have to be hardcore
environmentalists like the people in Whale Wars
(Animal Planet) who beat the **** out of the Japanese Whaling
fleet but do what you can to save the very planet you live on.
Questions (sorry!)
1. About how many species have gone extinct over the past 100 years?
2. The amount of endangered species (decreased, stayed the same,
doubled, tripled) over the past 100 years.
3. Briefly describe the terms related to species endangerment
(Vulnerable - Extinct Species).
4. Of all the reasons/factors for species endangerment, which do we
(our group) think is more critical? Which do you think is the most critical
and why?
5. The picture shown on slide 7 of the wolf cub was a pure-bred red
wolf, right? (No, we will not go back to the slide for you to see the
 6. The graph on the data section says that ____% of mammals were
endangered in 2002.
7. What effect does putting exotic/foreign species in another ecosystem
have on the ecosystem's species?
8. What effect extinction and loss of a certain species might have on
the organisms it preys on? And the organisms that prey on it?
 Modern technology
Owes ecology
An apology.
•   The official website for the Polar Bear Specialist Group of the IUCN Species Survival
    Commission. IUCN, Red List, Norwegien Polar Institute, 11 May 2010. google
    Search. Web. 24 Oct. 2010.
•   National Park Service Inventory & Monitoring . Ed. Brenda Wells. National Park
    Service U.S. Department of the Int, 25 Aug. 2008. google Search. Web. 24 Oct. 2010.
•   "World Wildlife Fund | WWF Gift Center." World Wildlife Fund - Wildlife Conservation,
    Endangered Species Conservation. Web. 24 Oct. 2010.
•    Protect your waters. U.S. Fish and Wildlife Service and the U.S. Coas, n.d. google
    Search. Web. 24 Oct. 2010. <>.
•   Kurpis, Lauren. Ed. Lauren Kurpis. N.p., 2002, Google
    Search. Web. 24 Oct. 2010. <
•   Enviornmental Quotes:

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