Populations and Ecosystems

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What is a abiotic factor?
Non-Living parts of the environment
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What is a biotic factor?
The living parts of the environment
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What does random sampling avoid?
It avoids bias when collecting data, meaning data is valid.
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What is the calculation for estimated population size?
Total number of individuals in first sample x total number of individuals in second sample/ number of marked individuals recaptured.
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How do you find life expectancy on a survival curve?
Its 50% of the total living population.
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What is intraspecific competition?
Competition between organisms in the SAME species
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What is interspecific competition?
Competition between two DIFFERENT species
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Name examples of abiotic factors that limit population size
Light intensity, temperature, mineral
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Other cards in this set

Card 2

Front

What is a biotic factor?

Back

The living parts of the environment

Card 3

Front

What does random sampling avoid?

Back

Preview of the front of card 3

Card 4

Front

What is the calculation for estimated population size?

Back

Preview of the front of card 4

Card 5

Front

How do you find life expectancy on a survival curve?

Back

Preview of the front of card 5
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