Living World (COLD ENVIRONMENTS) Flashcards
What is a cold environment?
A region experiencing sustained below freezing temperatures
Where are cold environments located?
High latitudes, polar regions
Polar
Areas surrounding poles, eg. Antarctica or Greenland
Tundra
- High latitude
- Low temperatures
- Short growing seasons
- Permafrost
- Eg. Canada, Russia
Alpine
- Cold
- Mountainous
- Snowy conditions
- Warmer summers
- Eg. Himalayas and Alps
Characteristics of CLIMATE in POLAR environments
- Temperatures consistently below 0 for most of the year
- Very little precipitation
Characteristics of SOILS in POLAR environments
- Soils lack nutrients
- Constantly frozen
- Or covered in thick ice sheets
Characteristics of PLANTS in POLAR environments
- Mosses and lichens are most prevalent plants
- Poor soils make if difficult for plants to grow
Characteristics of ANIMALS in POLAR environments
- Highly adapted to life
- Antarctica has very little life, eg. Small insects
- Southern oceans are full of wildlife
- Arctic has polar bears
Characteristics of PEOPLE in POLAR environments
- 4 million people living in the Arctic
- No permanent residents in Antarctica
- Life is heavily influenced by living conditions, eg. Temperature, lack of biodiversity
Characteristics of CLIMATE in TUNDRA environments
- Temperatures less extreme than polar
- May reach above freezing during summer
- Growing season is short
Characteristics of SOILS in TUNDRA environments
- Nutrient poor
- Permafrost
- During summer, permafrost can melt making soil waterlogged
Characteristics of PEOPLE in TUNDRA environments
- More residents than polar
- Lives are still influenced by cold environment
Characteristics of ANIMALS in TUNDRA environments
- Greater biodiversity than polar
- More diverse wildlife
- More developed food chains
- Foxes, hares, birds, insects, etc
Characteristics of PLANTS in TUNDRA environments
- Generally LOW GROWING flowering plants, eg. moss, grass, flowers, etc
- Generally too cold for trees
- Plant life is NOT nutrient rich, due to lack of nutrients in soils