Population Ecology Flashcards

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1
Q

characteristics of populations that can be measured

A
  • Size, density, distribution
    – Growth rates, births & deaths
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2
Q

what’s a populations

A

groups of individuals of the same species living together

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3
Q

as you get higher on the trophic level…

A

population density decreases (deer vs. tigers)

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4
Q

instead of counting individual animals…

A

use indirect indicators like nests, droppings, burrows

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5
Q

mark-release-recapture method

A

R (marked recap.s) / T (total in 2nd sample)

M (marked initially) / N (total pop. size)

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6
Q

quadrats

A

used to count plants

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7
Q

demography

A

studying emigration, immigration but primarily birth and death rates

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8
Q

growth eqn.

A

ΔN/Δt

(change in pop. size) / (change in time)

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9
Q

B - D = ?

A

ΔN/Δt

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10
Q

only exponential growth eqn on final

A

rN = B-D
(positive = incr. pop. size)

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11
Q
A
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