ecosystems and sustainability

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ecosystems
living and non living organisms occurring together and their interrelationship between them
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habitats
Is the place where an organism lives
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population
Is all of the organisms of one species that live in the same place at the same time, and That can breed together
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community
Is all the populations of different species that live in the same place at the same time, and can interact with each other
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trophic level
The level at which an organism feeds in a food chain
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productivity
The rate at which energy passes through each trophic level in a food chain
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primary productivity
Is the total amount of energy fixed by photosynthesis. It is the net flux of carbon from the atmosphere to plants, pet unit time.
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net primary productivity
Is the rate at which carbohydrate accumulates in the tissue if plants of an ecosystem and is measured in dry organic mass
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succession
Is a directional change in a community of organisms over time
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carrying capacity
Is the maximum population size that can be maintained over a period of time in a particular habitat
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limiting factors
Where the rate of a natural process is affected by a number of factors. The limiting factor is the one whose magnitude limits the rate of the process. It is often the factor in the shortest supply.
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competition
happens when resources are not present in adequate amounts to satisfy the needs of all the individuals who depend on those resources
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coppicing
involves cutting a tree trunk close to the ground to encourage new growth
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conservation
involves the maintenance of biodiversity, including diversity between species, genetic diversity within species and maintenance of a variety of habitats and ecosystems
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Other cards in this set

Card 2

Front

Is the place where an organism lives

Back

habitats

Card 3

Front

Is all of the organisms of one species that live in the same place at the same time, and That can breed together

Back

Preview of the back of card 3

Card 4

Front

Is all the populations of different species that live in the same place at the same time, and can interact with each other

Back

Preview of the back of card 4

Card 5

Front

The level at which an organism feeds in a food chain

Back

Preview of the back of card 5
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