Polar Tundra
The Land of No Trees
![Picture](/uploads/1/8/8/1/18816658/2128832.gif?293)
(Green is where Tundra Biome is located)
Arctic Tundra:
Life at the North Pole
- Tundra means land of no trees (12)
- treeless hilly biome (3 mil sq m) (12)
- coldest biome (12)
- caribou use antlers and hooves against wolves (29)
- wolves then hunt younger, older, weaker, slower caribou (29)
- woolly bear caterpillar- freezes in winter and continues living on in the spring (40)
- squirrels, mice, voles have smaller ears, legs, tails- reduces the chances of frost bitten body- also lose less heat (41)
- ground squirrels eat a lot in summer- store fat in the winter (41)
- arctic fox: 2 layers- 1st insulated- 2nd keep fox dry- changes color to blend in- white in the winter, brown in summer (43)
- in matting season snowy owl kills dozen of lemmings - piles up bones in front of female (44)
Science Book
- permafrost- so only thin layer of soil active- only shallow rooted plants grow- grasses, small shrubs (56)
Alpine Tundra:
Life on the Tallest Mountain
- small sized plants (21)
- deep roots anchor them to ground (21)
- tone crop plant allows only parnassion butterfly to sip its nectar, discouraged bird to eat that butterfly (22)
- paintbrush plant- when it gets cold anthocyanians shines through and converts light energy to heat (27-28)
- some plants cannot live in freezing weather- as they fall to the ground they form a protective cover over the remaining plant parts and it will live again in the summer. (28)
- ptarmigan's white feathers help keep warm and camouflage it (29)
- pikas, mice, shrews, gophers, vole adapt by living in the layer between snow cover and the ground (35)
- weasels coat changes from brown- white in the winter (36)
- spring beauty- thick root can b eaten- roots go deep- 6 ft, into the soil (43)
- ptarmigan produces new coat of feathers