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Biology Paper 2
Topic 7 - Ecology
Biodiversity
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Biodiversity
Variety
of all the different
species
of organisms on earth, or within an ecosystem.
Importance of a Great biodiversity
Ensures the
Stability
of ecosystems by reducing
dependence
of one species on another for food, shelter and the maintenance of the physical environment
Measures put in place to maintain biodiversity
Breeding programmes for
endangered
species
Protection +
regeneration
of rare habitats
Recycling
resources rather than dumping waste in landfill
Reduction of
deforestation
and CO₂ emissions by some governments
Reintroduction of
field
margins and hedgerows in agricultural areas where farmers grow only one type of
crop
Issues with maintaining biodiversity
Expensive
To maintain the standard of living Fertilisers and Mining is
needed
Some countries need wood for
Homes
, Crops and
Cooking