Topic G Ecology & conservation G2 Ecosystems & biomes.

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Presentation transcript:

Topic G Ecology & conservation G2 Ecosystems & biomes

Objectives Ecological production & energy flow Biomes Successions

Biomass Organic mass / area of habitat

Primary production

Energy pyramid Compares energy turnover kJ/m 2 /yr

Biomes & biosphere

Tropical rainforest

Temperate deciduous forest

Tundra

Desert

Grassland Moderate, seasonal rainfall Perpetual sunshine with hot or cold temperatures

Shrubland

Climograph Rainfall Temperature

Ecological succession Biomes are not static Replacement of one vegetation type with another Usually initiated by disturbance

Primary vs. secondary succession

Primary succession Species diversity Time Primary production

Summary Ecological production & energy flow Biomes Successions