Factors Affecting Biodiversity Flashcards

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1
Q

What are the three factors that affect biodiversity?

A

human population growth

agriculture

climate change

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2
Q

How does human population growth affect biodiversity?

A

destruction of habitat e.g. deforestation
separating populations e.g. roads - populations cant interbreed
unsustainable hunting / fishing e.g. overfishing of cod
pollution

  • all of this decreases in habitat biodiversity,
    species biodiversity, and genetic biodiversity
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3
Q

How does agriculture affect biodiversity?

A

monoculture - cultivation of only one type of crop

more land is needed to feed growing population - increased habitat destruction
continuous monoculture causes soil depletion - reduces other plant species ability to survive

- decreases - 
habitat biodiversity,
species biodiversity
genetic
biodiversity
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4
Q

How does climate change affect biodiversity?

A
  • human burns fossil fuels - co2 is a greenhouse gas
  • weather patterns will change - change the abundance and distribution of species
  • some will become extinct
  • decreases in
  • habitat biodiversity
  • species biodiversity
  • genetic biodiversity
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