Thursday, March 8, 2012
PREZI
To view the pictures that go with the information on this blog, go to http://prezi.com/hiwqbeqavoad/alaskan-tundra/
Slide 9: Conclusion
All of these species, which contribute to the biodiversity of the Alaskan Tundra, are in risk of becoming extinct. Climate change, caused by humans, is destroying this unique and valuable ecosystem one animal at a time. The biodiversity of the whole world will be severely damaged if action is not taken to save these animals, many of which are only found in the arctic region.
Slide 8: Red knot
The red knot is the one of the most amazing birds in the Alaskan Tundra, but sadly are becoming extinct. 4 out of 6 populations are dying out. Crabs they are eating are dying out because of climate change, which is making the Red Knot population decrease.
Slide 7: Arctic Char
The Alaskan Tundra is home to 70% of the world's freshwater. The arctic char is one of the only fish able to survive in these conditions, however. Though populations of this fish are relatively healthy, over fishing and the climate change could easily lead to the loss of this important part of the arctic ecosystem.
Slide 6: reindeer and caribou
The reindeer and caribou are large dominant mammals living in the Alaskan Tundra. They both provide a good resource for the people living in the Arctic, who depend on the success of the population. Climate change can negatively affect the animals.
Slide 5: Ivory Gull
The Ivory Gull is another animal that will suffer if the polar ice continues to melt. This unique bird follows the polar bear. It survives off the leftovers of the predator. If the polar bear suffers, the ivory gull will be in great danger.
Slide 4: Polar bear
The polar bear is a great predator found in Alaska. The polar bear will suffer if the ice continues to melt since it's adapted to this type of environment.
Slide 3: Adaptation in the alaskan tundra: the arctic fox
The Alaskan Tundra is a very difficult region to live in. Many animals who live there have to have special adaptations to survive. One example of this is the arctic fox. This animal has a short, round body and short ears to limit the amount of skin exposed to the frigid air. It is also white to camouflage with the snow and ice.
Tuesday, March 6, 2012
Slide 2: What is Biodiversity?
Biodiversity is basically the variety of life on earth. It means that there is a wide range of ecosystems and species. It is the foundation of life on earth. Its ecosystems provide us with resources we need to survive!
Slide 1: What is the Alaskan tundra?
The Alaskan Tundra is one of the world's many biomes. It is frigidly cold and dry. It's temperatures in the winter are less than 5 degrees Celsius, and less than 100 mm of annual precipitation! Though the summer is short, there are almost 24 hours of daylight! This can cause explosive plant growth.
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