Biodiversity Flashcards

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1
Q

different levels of biodiversity

A

habitat

species

genetic

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2
Q

define biodiversity

A

the variety of living organisms in an area

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3
Q

species richness

A

the number of different species in an area

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4
Q

species evenness

A

a measure of the relative abundance of each species in an area

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5
Q

genetic diversity

A

the variation of alleles within a species

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6
Q

small n in simpsons index of diversity

A

total number of individuals of one species

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7
Q

big N in simpsons index of diversity

A

total number of organisms of all species

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8
Q

ecological reasons for maintaining biodiversity (2)

A

protect keystone species (stop disruption to food chains and nutrient cycles)

maintain genetic resources (for food, drugs, fuels, clothing, wood, paper)

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9
Q

economical reasons for maintaining biodiversity

A

reduce soil depletion

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10
Q

aesthetic reasons for maintaining biodiversity

A

attractive to look at

attract more visitors

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