Pee reviewer L3

FACTORS THAT SHAPE BIOMES

Biome

a “large”, relatively distinct terrestrial region

• biome encompasses many interacting ecosystems

Near the poles, climate depends more on temperature,

while in temperate and tropical areas, it depends more on rainfall.

• Tundra

-Treeless biome in the far north has boggy plains covered by lichens and small plants

-it has very cold winters and extremely short summers

• Boreal forest

-Region of coniferous forest in the Northern Hemisphere

- Located just south of the tundra

• Temperate rain forest

Coniferous biome with cool weather, defense fog and high precipitation

• Temperate deciduous forest

forest biome that occurs in temperate areas with a moderate amount of precipitation

• Temperate grassland

Grassland with hot summers, cold winters and less rainfall than is found in the temperate deciduous forest biome

• Chaparral

Biome with mild, moist winters and hot dry summers; vegetation is typically small leafed evergreen shrubs and small trees

• Desert

- Lack of precipitation limits plant growth

- Found in both temperate and tropical regions

• Savanna

Tropical grassland with widenly scattered trees or clumps of trees

• Tropical rain forest

Species rich forest biome that occurs where the climate is warm and moist throughout the year

AQUATIC ECOSYSTEMS

Freshwater ecosystems include standing-water, flowing-water and freshwater wetlands

• Standing-water ecosystems

is a body of fresh water surrounded by land "water does not flow like lake or pond

• Flowing-water ecosystems

is a freshwater ecosystem such as river or stream “water flows”

• Freshwater wetlands

are marshes and swamps lands that are covered by shallow fresh water at least part of the year

ESTUARIES

Saltwater intrusion will alter the balance of freshwater and marine life