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Description
Mind Map by Michaela Radford, updated more than 1 year ago
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Created by Michaela Radford
almost 4 years ago
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QCAA BIOLOGY U3T1 CH1
- 1.1 The diversity of species and ecosystems
- Variety of life is known as biodiversity.
- living (biotic) and non living organisms (abiotic)
- energy transferred through photosynthesis and linked through food webs.
- Final transformation known as body heat
- Final transformation known as body heat
- energy transferred through photosynthesis and linked through food webs.
- Variety of life is known as biodiversity.
- 1.2 Determining diversity
- species richness
- the number of species present in an ecosystem
- the number of species present in an ecosystem
- Relative species abundance
- How many species are present
- How many species are present
- % cover
- percentage of quadrat that species is occupying.
- percentage of quadrat that species is occupying.
- % frequency
- proportion of quadrats that contained a particular species
- proportion of quadrats that contained a particular species
- SDI
- a number between 0 and 1 determining diversity. 1 = infinite diversity.
- a number between 0 and 1 determining diversity. 1 = infinite diversity.
- species richness
- 1.3 comparing ecosystems
- Spacial scale
- Macro level - country/continent. BIG
- Meso-level - names area/location
- Micro level - individual biome
- Macro level - country/continent. BIG
- Species interaction
- Predation
- competition
- Predation
- Niche - a specialised position/role
- Spacial scale
- 1.4 Environmental limiting factors
- limiting - restricts an organism's ability to live there
- limiting - restricts an organism's ability to live there
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