CHAPTER 19 NOTES

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  • Created by: ALK756
  • Created on: 18-10-15 14:00
What is a community?
All biotic components in a naturally occurring region.
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What is an ecosystem?
An ecosystem is a community of organisms along with their physical surroundings.
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What is the biosphere?
The biosphere is the largest ecosystem that encompasses the entire planet.
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What is geographic distribution?
it's when we map all the places a species can be found.
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What is a habitat?
The habitat is the place where an organism lives. E.g. the habitat of a water lily is a pond.
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What is a microhabitat?
a microhabitat is a smaller habitat within a habitat. E.g. a fallen log covered with moss that is home to insects and fungi.
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What is a niche?
a niche is a part of an environment in which the species survives, reproduces and is likely to persist.
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What are the three main types of ecosystems?
Freshwater, marine and terrestrial.
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Terrestrial ecosystems can be named by the type of plants rather than a dominant species. What are the two key features that they use?
First is the type of plant that forms the tallest/dominant layer in the community. Second is the cover of the canopy, estimated according to the amount of sunlight blocked out.
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What are biomes?
Biomes are ecosystems that are studied on a world-wide scale.
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What is a quadrat?
A quadrat is a tool that is used to take a sample population of the community.
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What is a transect?
a transect is a line which quadrats can be located to sample and describe an ecosystem.
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Card 2

Front

What is an ecosystem?

Back

An ecosystem is a community of organisms along with their physical surroundings.

Card 3

Front

What is the biosphere?

Back

Preview of the front of card 3

Card 4

Front

What is geographic distribution?

Back

Preview of the front of card 4

Card 5

Front

What is a habitat?

Back

Preview of the front of card 5
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