Hi i'm Ashley. I have three brothers, Kevin Reichley, Kyle Reichley and Austin. And my mom and dad. Some of my friends are Brianna Bryant, Katy Chittum, Brook Huskey, Brandon Weingarth, Jesse Lahna, Ryan Jones and Scott Hart. My favorite musical bands are Van Halen, Metallica, Micheal Jackson, Ozzy Ozbourne and Adam Lambert. I like to listen to a lot of music. And I can't forget my cat, Sweety. She's a fat cat. My hobbies are softball and basketball. I love to read books about specific topics.My favorite colors are black and red, I really don't know why but they really stand out to me. Something you may not know about me is that medical science catches most of my attention. Anyway, my biome is the tundra. The animal I choose is the polar bear. Polar bears, like some of the other arctic animals, have heavy fur coats.Its essential because tundras tend to be very cold.

I choose the polar bear because, like me, they love the cold. That and they're cute!!!



polar.jpg Isn't he cute!!!

  • The tundra(alpine) biome is the worlds youngest biome. It was formed about 10,000 years ago.
  • Located at 55 to 70 degrees North, it is a vast and treeless land that covers %20 of Earths surface. If you think about it, thats not very much land.
  • Tundra means "barren land" in Finnish.

CLIMATE

  • The tundra is cold for nearly the whole year. There are only 6-10 weeks of warmer weather and the temps don't reach anything over 50 degrees.
  • During the winter months, the sun barely rises.
  • The average temperature is between -20 and -30 degrees farenheit, though the temperature can rise up to 20 degress farenheit.
  • It receives 6-10 inches of precipitation per year plus melted snow. That is about the amount that the driest deserts get.
  • The ocean water keeps the climate from falling to extreme temperatures.

ANIMALS



Examples
The arctic fox adapted to this cold envirnment by having a heavy fur coat.
They also have short muzzles, legs and ears to keep body heat in. It is a scavenger too, so food comes good to it. But, it is hunted by wolves, polar bears and golden eagles.

Polar bears adapt to these extremly cold climates by having 2 layers of fur. How cozy!
Their coats are so thick that adults can easily overheat by running. Its better than freezing to death, i guess. They have sharp claws and teeth to catch prey easily.
To their luck, they have 4-5 inches of blubber along with the thick layers of fur. Wow, they must really keep warm! Like most bears, polar bears are omnivores.

Caribou have adapted as well. Their large hooves support them in the snow and the marshy tundra in the summer.
They can lower their metabolic rate when the winter conditions get bad. Sort of like semi-hibernation.
They are not endangered because of their ability to adapt to climates humans wouldn't want to deal with.

Adaptations-
  • Many arctic mammals have a heavy coat, like the arctic fox, to keep warm in the blistering wind, temperatures and climate.
  • Some arctic mammals, besides caribou, have short ears, legs and muzzles to hold in body heat.
  • Some, like the polar bear, even have a layer of blubber.
  • Some animals have fur or feathers that change color depending on the season. Brown in the summer and white in the winter.
  • Some animals, like the ground squirrel use solar heat to keep warm.
  • Mosquitoes burrow under the snow because the have a chemical in their body to keep warm. When the snow is melted and the ground is wet and soggy, millions of mosquitoes come out.







PLANTS

Examples
The Calliergon moss adapted well to the cold temperature.
When its not growing, its keeping in nutrients so new leaves can be formed for spring. To stay clear of the strong and chilly winds by growing near the ground.

The Salix arctica(arctic willow) has made many adaptations to the cold weather.
When its in its strongest growth season, the Salix arctica produces a pesticide to keep insects away. The leaves on the Salix arctica have adapted by growing hair on its leaves.

The Pasque flower is found in the tundra too. It has adapted by growing low to the ground to stay clear of the cold climate. It also grows fuzzy hairs to insulate it.

Adaptations-
  • Some plants, like the pasque flower, grow fuzzy hairs to insulate them from the wind and temperature.
  • Most plants, like calliergon moss, grow close to the ground to also advoid the climate
  • Flowering plants use the long hours of sunshine to produce flowers quickly in the short summer.
  • Some plants have dish-like flowers that lets the sun focus on the center of the flower.
  • Some plants grow in clumps to protect themselves and each other from the cold.








FOOD CHAIN-Lichen, Lemming, Arctic fox, Arctic wolf
external image cover.jpgexternal image brlemming.jpg
ARCTIC FOX
ARCTIC FOX
Alaskan Tundra Wolf
Alaskan Tundra Wolf
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