Ecosystem basics
The basics on ecosystems.
- Created by: weirh003
- Created on: 14-02-14 17:17
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- Ecosystem Basics
- what is an ecosystem?
- A set of relationships between all of the organisms and non-living factors in a particular area.
- they can vary in size
- E.G. a forest environment
- What is a biome?
- an area with a distinctive climate and vegetation e.g. a tropical biome
- they often cover large areas, often across multiple countries.
- Nutrient cycles
- carbon and nitrogen
- Plants take CO2 from the air and nitrogen from the soil. These create plant matter.
- these nutrients are passed along the food chain through feeding
- When plants and animals die, they are broken down by saprobiotic organisms such as bacteria and fungi.
- Nutrients are returned to the soil to be used again by plants
- Plants, animals and decomposers all release CO2 back into the atmosphere through respiration.
- Abiotic factors
- Non-living factors
- Climate, Ph of the soil, light intensity etc.
- Non-living factors
- Biotic Factors
- Living factors
- Untitled
- Living factors
- what is an ecosystem?
- organisms depend on physical factors and each other to survive, so relationships between organisms are important
- what is an ecosystem?
- A set of relationships between all of the organisms and non-living factors in a particular area.
- they can vary in size
- E.G. a forest environment
- what is an ecosystem?
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