Ecology

1
Ecology

• Biomes of the World

2
What is a biome

• A large region by a specific type of climate and
  certain types of plants and animals communities
  
• Biomes are described by their vegetation because
  this determines what type of other organisms can
  survive there.

3
Tropical Rainforest

• Located in a belt around the earth near the
  equator
  
• They help regulate world climate and plays vital
  roles in the nitrogen, oxygen, and carbon cycles
  

4
Tropical Rainforest

• Receive heavy rains and high temperatures all
  year
  
• May receive 200 t0 450 cm of rainfall per year
• They are the most biologically diverse in the
  world

5
Temperate Deciduous Forest

• Experience seasonal variations in temperature and
  rainfall
  
• They receive 75 to 125 cm or precipitation.
• Tall trees with small shrubs growing under the
  trees
  
• The animals are adapted to forest food and
  shelter
  

6
Taiga

• A northern forest with mostly conifer trees
• Growing season may be as short as 50 days
• Winters may last 6 to 10 months long

7
Taiga

• The plants are mostly conifers which causes the
  soil to be acidic
  
• There are many migratory birds, rodents and moose
  
  

8
Savannas

• Savannas are located north and south of tropical
  rain forest
  
• Have distinct wet seasons
• Most receive 90 to 150 cm of precipitation per
  year
  

9
Savannas

• All plants must go along time without rain
• There are a few trees, but mostly grasses
• Most of the animals are grazing animals
• Some have learned to follow the rains

10
Temperate grasslands

• Get to little rainfall to support trees
• Dominated by different types of grasses and
  flowering plants
  
• Grasslands receive about 25cm of precipitation
  per year
  

11
Temperate grasslands

• Prairie grasses and lots of wildflowers grow here
  
  
• Most of the animals are grazing animals such as
  bison
  
• The other type of animals are burrowing animals

12
Chaparral

• Temperate woodland biome that have a fairly dry
  climate
  
• Most of the plants are small shrubs that grow in
  dense patches

13
Chaparral

• It is dominated by evergreen shrubs
• Most of the animals have developed great
  camouflage such as lizards, chipmunks, and mule
  deer
  

14
Deserts

• The driest biomes on earth
• All the plants of the desert are adapted to
  survive in hot dry weather
  

15
Deserts

• Deserts receive less than 25 cm or precipitation
  a year
  
• Most of the animals of the deserts are animals
  with skin or skin coverings that allow for the
  conservation of water
  

16
Tundra

• Biome that is dominated by grasses, lichens, and
  herbs that are located above the Artic circle
  
• Underneath the top of soil is a layer of
  parentally frozen soil called permafrost

17
Tundra

• Most of the plants are mosses and lichens. All
  flowering plants are short to avoid the strong
  winds
  
• There are millions of migratory birds fly here
  during the summer for breeding
  
• Many grazing animals also lives here