2.2 Population Ecology Flashcards by Vanessa McNiven

Q

exponential models

A

growth increases at a constant rate

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Q

n means

A

population size

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Q

r means

A

growth per capita

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Q

t means

A

time

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Q

dn/dt means

A

growth rate

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Q

k means

A

carrying capacity

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Q

Density dependent examples

A

disease, famine, competition

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Q

density independent examples

A

sunlight, climate, natural disasters

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Q

what is the carrying capacity

A

maximum population size one area can support

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Q

r equals

A

(births-deaths) N0

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Q

logistic growth formula

A

dn/dt=rN(k-n)/k

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Q

Maximum sustainable yield

A

1/2 k

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Q

What kind of limiting factor is a flood?

A

Density independent

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Q

How might the density of a population affect how quickly disease spreads?

A

Higher density means disease will spread quicker

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Q

Most independent imiting factors are…

A

abiotic factors

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Q

when will a population remain the same

A

when births=deaths

Q

k varies

A

with changes in resources