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Ecology > Population Dynamics > Flashcards

Population Dynamics Flashcards

1
Q

Add individuals to populations

A

Birth and immigration

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2
Q

Remove individuals from populations

A

Deaths and emigration

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3
Q

Is concerned with the factors influencing the expansion, decline, or maintenance of populations

A

Population dynamics

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4
Q

An important aspect of population dynamics

A

Dispersal

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5
Q

Can increase or decrease local population densities

A

Dispersal

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6
Q

Dispersed by winds, water or transported by a variety of mammals

A

Plant seeds

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7
Q

May spend their lives attach to rocks

A

Barnacle

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8
Q

Often disperse from the area where they are born

A

Young mammals and birds

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9
Q

Are changes in the density of predator populations in response to increased prey density

A

Numerical responses

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10
Q

Moving from place to place in response to changing vole densities

A

Nomadic

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11
Q

Is a part of a larger population, with which it sustains a limited exchange of individuals through immigration and emigration

A

Subpopulation

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12
Q

A group of subpopulations living on such patches connected by exchange of individuals among patches makeup of

A

Metapopulation

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13
Q

Rocky mountain parmesan butterfly

A

Parnassius smintheus

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14
Q

Summarizes the pattern of survival in a population

A

Survivorship curve

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15
Q

Population biologist have invented bookkeeping devices that list both of the survivorship and the deaths in a populations

A

Life tables

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16
Q

A group born during the same time period

A

Cohort

17
Q

Consists of the proportion of individuals of different ages within a population

A

Age distribution

18
Q

Three types of survivorship curve

A

Type one survivorship
Type 2 survivorship
Type 3 survivorship

19
Q

Survival is high and most mortality occurs among older individuals

A

Type 1 survivorship

20
Q

Constant rates of survival throughout life produced straight line pattern survival

A

Type 2 survivorship

21
Q

Extremely high rates of mortality among young and followed by a relatively high rate of survival

A

Type 3 survivorship

22
Q

Reflects it’s history of survival, reproduction, and potential for future growth

A

Age distribution

23
Q

Indicate periods of successful reproduction, periods of high and low survival

A

Age distribution

24
Q

Means the number of young born per female in a period of time

A

Birthrate

25
Q

Refers to any other processes that produce new individuals in the population

A

Birth

26
Q

The tabulation of birthrates for females of different ages in a population is called

A

Fecundity schedule

Ecology (6 decks)

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