B4-Ecology

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  • Created by: kukidp
  • Created on: 23-01-16 13:23
What are ecosystems?
All organisms living in a particular area.
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How do you measure population size using a quadrat?
Count all organisms in a 1m2 quadrat and multiply by total area of the habitat.
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What is the capture recapture method?
You capture a sample of organisms and mark them before releasing them. Then you recapture a similar sized sample on a different day from the same area and count how many are marked.
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What is the capture recapture formula?
Population=(number in first sample x number in second sample)/number of marked in second sample
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What do transects do?
Show distribution of organisms.
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What does a kite diagram show?
Distribution and number of organisms.
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What are abiotic factors?
Non-living factors that affect the distribution of organisms, such as water or salinity.
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What is zonation?
Gradual change in distribution of species across a habitat.
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What are natural ecosystems?
Ecosystems that maintain themselves without major human interference.
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What are artificial ecosystems?
Ecosystems created and maintained by humans.
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Other cards in this set

Card 2

Front

How do you measure population size using a quadrat?

Back

Count all organisms in a 1m2 quadrat and multiply by total area of the habitat.

Card 3

Front

What is the capture recapture method?

Back

Preview of the front of card 3

Card 4

Front

What is the capture recapture formula?

Back

Preview of the front of card 4

Card 5

Front

What do transects do?

Back

Preview of the front of card 5
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