Causes of Extinction

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Causes of Extinction

• Adham M.
• Austin P.
• Eileen M.
• Period 5

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Introduction

• Our project is about the extinction of manatees.
  The causes of this problem are hunting, getting
  hit by powerboats, mistreatment, and residential
  and commercial growth.
• Today manatees are vanishing and being mistreated
  by hunters and even boaters .

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Mistreation

• About 1 million people on our planet have been
  mistreating manatees to extinction.
• Some forms of mistreation of manatees are
  shooting, killing, harassing, capturing, and
  wounding.
• In mid -1996 ,960 domestic species were put on
  the endangered and mistreatment list. In marine
  life there are 15 marine species in great danger
  from becoming extinct.

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Powerboats

• Powerboats are now the greatest threat to
  manatees. Manatees are slow near surface
  swimmers, and the number of collisions with
  motorboats is increasing at an alarming rate. In
  1990 , 218 manatees, which comprised 12 percent
  of the United States manatee population, were
  killed in boating accidents

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Hunting

• Some parts of the world, Caribbean and South
  America for example, people have hunted manatees
  for meat and are still hunting manatees for food.

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Residential and Commercial Growth

• Residential and commercial development along
  rivers and waterways has also affected the
  manatee population.
• Habitat destruction has damaged the estuarine sea
  grass communities on which manatees depend. In
  addition,chemical pollution has impaired the
  immune systems of marine mammals, and the
  manatees may have become more vulnerable to
  infection as a result.

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Conclusion

• We learned that there are many ways that manatees
  are being mistreated. Some of them include
  hunting, running into them with power boats,
  residential and commercial development. Today
  manatees are in our waters and still swimming
  like nothing had happened to them in the past.
  But what about the future

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Resources Used

• www.bagheera.com)