Biodiversity
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1
What is biodiversity?
The variety of living organisms
2
What is a habitat?
Place where an organism lives
3
What is a community?
Populations of species in a habitat
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What areas have high biodiversity?
Areas with many different species
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What is local biodiversity?
Biodiversity in a small habitat
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What is global biodiversity?
Biodiversity across the whole Earth
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Where is biodiversity highest on Earth?
At the equator
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Where does biodiversity decrease on Earth?
Towards the poles
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What is species richness?
Number of different species in a community
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What is species evenness?
Relative abundance of different species
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How is biodiversity measured?
Using an index of diversity
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What is the formula for diversity index?
d = N(N-1) / Σn(n-1)
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What does "N" represent in the formula?
Total number of organisms
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What does "n" represent in the formula?
Number of individuals of one species
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What does Σ represent in the formula?
Sum of calculations
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What does a high diversity index mean?
More diverse area
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What does a low diversity index mean?
Fewer species, less diversity
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What is agricultural land clearance?
Removing land for farming
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How does monoculture affect biodiversity?
Reduces variety, fewer species
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What do pesticides do?
Kill pests and reduce biodiversity
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How do herbicides impact biodiversity?
Kill unwanted plants, reducing species
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What are conservation schemes?
Ways to protect biodiversity
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What does SSSI stand for?
Special Scientific Interest
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What does AONB stand for?
Areas of Outstanding Natural Beauty
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How do farmers encourage biodiversity?
Using hedgerows and field margins
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