biodiversity Flashcards

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1
Q

the nearer an area is to the equator…

A

the greater the biodiversity

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2
Q

what are the 3 levels biodiversity can be measured on?

A
  • habitat
  • species
  • genetic
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3
Q

habitat biodiversity

A

no. diff habitats in an area

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4
Q

generally, the more habitat diversity in an area, the greater the

A

species diversity

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5
Q

what are the two different components of species biodiversity?

A
  • species evenness

- species richness

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6
Q

species evenness

A

a comparison of the no. individuals of each species living in a community

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7
Q

community

A

all the populations of living organisms in a particular habitat

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8
Q

species richness

A

the no. species living in a particular area

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9
Q

genetic biodiversity

A

variety of genes that make up a species

the more alleles = more variety of phenotypes = better adaptation for changing environment = resistance to disease

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10
Q

abundance of an organism

A

the no. individuals of a species present in an area

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11
Q

sampling is used to ….

A
  • estimate the no. organisms in an area

- measure a particular characteristic of an organism

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12
Q

in a random sample…

A

each individual in the population has an equal likelihood of selection

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13
Q

what are the names of the three techniques for non-random sampling

A

opportunistic
stratified
systematic

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