Biodiversity 4.2.1 Flashcards

1
Q

Define biodiversity

A

It is a measure of the variation found in the living world.

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2
Q

What are the levels of diversity

A
  1. Habitat
  2. Species
  3. Genetic
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3
Q

What is a habitat?

A

Is where an organism lives

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4
Q

What is habitat biodiversity?

A

The range of habitats in which different species live is known as the habitat biodiversity

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5
Q

Give an example of habitat biodiversity

A

Sand dunes, woodland

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6
Q

What is a species?

A

A group of organisms that can freely interbreed to produce fertile offspring.
They are similar in appearance, anatomy, physiology, biochemistry, and genetics

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7
Q

What is species biodiversity

A

The range of organisms in a habitat, which contributes to this biodiversity

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8
Q

What is species richness?

A

The number of different species present in a given habitat

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9
Q

What is a quantitative way of measuring species richness?

A
  • Count the number of different species
  • Can use random quadratic technique
  • No need to identify the species
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10
Q

What is species evenness?

A

Takes into account the population size of each species, and it quantifies how equal the community is numerically

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11
Q

What is a quantitative way of measuring species evenness?

A
  • Use random quadrants, count the number of each species or % cover
  • Calculate RELATIVE ABUNDANCE
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12
Q

What is genetic biodiversity?

A

It is the variation between individuals, belonging to the same species.

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