Ecosystems (HSC SSCE Biology): Flashcards
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Ecosystem definition
Ecosystem definition
Living organisms (biotic) & non-living features (abiotic) interacting
Biotic factors
Biotic factors
Living components: plants, animals, fungi, bacteria
Abiotic factors
Abiotic factors
Non-living: temperature, water, light, soil, minerals
Terrestrial ecosystems
Terrestrial ecosystems
Land-based environments
Aquatic ecosystems
Aquatic ecosystems
Water-based environments
Estuarine environments
Estuarine environments
Areas with both fresh & salt water from tidal changes
Desert annual rainfall
Desert annual rainfall
Less than 250 mm
Tropical rainforest annual rainfall
Tropical rainforest annual rainfall
More than 1500 mm
Canopy cover
Canopy cover
% of ground covered by overhead plant canopy
Selection pressures
Selection pressures
Abiotic factors favouring certain organisms over others