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Introduction
An incredible variety of life exists on earth. Evolution
is responsible for this and allows organisms to be
classified in a meaningful way. Human activity has
reduced biodiversity and maintaining it is now seen
as important
Biodiversity
Classification
Evolution
Maintaining biodiversity
Click on the button to select the topic…read more

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Biodiversity
Select a topic by clicking on the button
· Ecological
terms
Meaning of biodiversity
Measurement of biodiversity and sampling
Quadrats
Estimates of abundance
Transects
Animal sampling
Species richness and evenness
Simpson Index of Diversity
Global estimates of biodiversity
Summary…read more

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Ecological terms and phrases
...
· You should be able to define a number
of ecological terms. The first three are
specified, but the others are related and
so are included as well.
­ Species
­ Habitat
­ Biodiversity
­ Population
­ Community
­ Ecosystem…read more

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... terms and phrases ...
Species Definition:
· A group of organisms with similar
characteristics (morphology,
physiology, behaviour, genetics)
that can potentially interbreed and
produce fertile offspring
Example
· Ragwort (Senecio jacobaea)
· Blue Bell (Endymion non-scriptus)
· Five-spot Burnet (Zygaena trifolii)
· Orang-utan (Pongo pygmaeus)…read more

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... terms and phrases ...
Habitat Definition:
· The place where an organism lives
· It provides correct environmental
conditions (physical, chemical and
biological) for the organisms to live
there.
Example
· Habitat of a rowan (mountain ash)
is a deciduous wood
· Habitat of salmon can include
different places during its life cycle
(river/freshwater/sea). Here, a
fresh water loch.…read more

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