Biodiversity under threat

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Species diversity
the variety of plant & animal species present in an ecosystem. Diversity is needed to enable the ecosystem to carry out its functions such as carbon cycling
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Genetic diversity
the range of genes found within a particular species. Often determines the degree of resistance to pests & diseases.
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Ecosystem diversity
the number of ecosystems within a given area. Partly controlled by physical conditions such as climate, geology, relief & soils. The ability of humans to change & eliminate ecosystems is a threat to ecosystem diversity.
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Endemism
The amount of unique & rare species presnt in a particular location.
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Biome
A global ecosystem.
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Ecosystem
a self-regulating biological community in which the living (biotic) interact with the non-living (abiotic).
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Primary Productivity
the rate at which energy is converted into organic matter. Can be measured by the amount of biomass produced each year. May be measured in terms of GPP (gross primary productivity) or NPP (net primary productivity)
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hotspot
An area of high biodiversity
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Biodiversity
the variability among living organisms from all sources- terrestial, marine & aquatic ecosystems & the ecological complexes of which they are part; this included diversity within species & ecosytems
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Sustainable management
allowing resources to be used but without compromising the needs of future generations
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Other cards in this set

Card 2

Front

the range of genes found within a particular species. Often determines the degree of resistance to pests & diseases.

Back

Genetic diversity

Card 3

Front

the number of ecosystems within a given area. Partly controlled by physical conditions such as climate, geology, relief & soils. The ability of humans to change & eliminate ecosystems is a threat to ecosystem diversity.

Back

Preview of the back of card 3

Card 4

Front

The amount of unique & rare species presnt in a particular location.

Back

Preview of the back of card 4

Card 5

Front

A global ecosystem.

Back

Preview of the back of card 5
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