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BIOLOGY > Ecology of Populations > Flashcards

Ecology of Populations Flashcards

1
Q

What is ecology?

A

study of interactions of living and non living components

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2
Q

What is environmentalism?

A

using science to protect the enviornment

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3
Q

What is phenotypic plasticity?

A

change in the phenotype of an organism over their life time (not really inherited)

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4
Q

What is evolutionary adaptation?

A

inherited adaption to help the organism survive

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5
Q

What is a population?

A

a group of individuals of the same species that are separate from other populations

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6
Q

What is a metapopulation?

A

separated populations of the same species with limited exchange and interactions

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7
Q

What is a sub-population?

A

doing a study on a piece of a population

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8
Q

What is uniform distribution?

A

happens when theres competition amount individuals in a species (organisms are spread out across a landscape)

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9
Q

What is random distribution?

A

no strong interaction between organisms (RARE)

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10
Q

What is clumped distribution?

A

happens when resources are clumped

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11
Q

What happens to density of population as size of organism increases?

A

density decreases

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12
Q

What are the two population growth models?

A
  1. simple growth model
  2. logistic growth model
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13
Q

What is the equation for population growth?

A

(birth rate-death rate)+(immigration rate-emmigration rate)

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14
Q

What does the simple growth model assume?

A

theres no net immigration or emigration and no carrying capacity

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15
Q

What does the logistic growth model include?

A

carrying capacity

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16
Q

What is the equation for the simple growth model?

A

dN/dt=rN

17
Q

What is the equation for logistic growth model?

A

dN/dt=rN(K-N/K)

18
Q

What is r in the growth model equations?

A

max growth rate

19
Q

What is N in the growth model?

A

number of individuals

20
Q

What is K in the growth model?

A

carrying capacity

21
Q

What are density dependent factors?

A

factors that depend on the density of population

22
Q

What kind of feedback do density dependent factors provide?

A

negative feedback

23
Q

Do density dependent factors cause fast or slow changes in population?

A

slow

24
Q

What are some examples of density dependent factors?

A

food, disease

25
Q

What are density independent factors?

A

factors that affect a population regardless of density

26
Q

What are some examples of density independent factors?

A

fires, floods, natural disasters

27
Q

What are k selected individuals?

A

individuals are good survivors and competitors

28
Q

What type of factor are k selected individuals exposed to?

A

density dependent

29
Q

What are r selected individuals?

A

individuals are good reproducers

30
Q

What type of factor are r selected individuals exposed to?

A

density independent factors

BIOLOGY (18 decks)

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