How to calculate the population size of a small sample area?
The number of animals found on the first sample multiplied by the number found on the second sample divided by the number of animals on the second sample that had been previously marked.
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What is an ecosystem?
All living organisms.
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What is a habitat?
Where one particular animal lives.
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What is a community?
The animals that are all different species but in the same location
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What is a population?
The amount of animals from one particular species.
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Name two artificial ecosystems and two natural ecosytems?
Forestry plantations and fish farms. Native woodlands and Lakes.
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What three assumptions should be made when using the capture - recapture method?
No death, immigration or emigration. That you have used identical sampling methods. Marking has not affected the survival rate.
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What is a self sustaining ecostystem?
An ecosytem that has all the necessary components for life, food chains and nutrients are all provided naturally.
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What is zonation?
A gradual change in the distribution of species across a habitat.
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What can a gradual change in an abiotic factor can result in?
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