Changes In Population Growth (ew) Flashcards

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1
Q

4 Factors of Population Change (2 Plus, 2 Minus)

A

Natality, Mortality, Emigration, Immigration

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2
Q

Two types of growth curves?

A

Exponential and Logistic

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3
Q

Between the two growth curves where would “R” organisms typically fall into?

A

Exponential Growth

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4
Q

Between the two growth curves where would “K” organisms typically fall into?

A

Logistical Growth

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5
Q

What is carrying capacity?

A

The maximum amount of organisms one ecosystem or area is able to hold in one time

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6
Q

Define biotic potential

A

the maximum amount of offspring produced by by a species under ideal conditions

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7
Q

Six aspects that biotic potential depends upon

A

Fecundity, Sexual Maturity age, Length of gestation, length of reproductive life, capacity for survival and number of times per year an organism reproduces

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8
Q

What is fecundity?

A

the max number of offspring a female can produce per pregnancy

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9
Q

Define Environmental resistance factors

A

factors that restrict the amount a population is able to reproduce

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10
Q

Define r-selected populations

A

Populations that grow rapidly, are short-lived and usually small in size

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11
Q

Define k-selected populations

A

Populations that grow slowly, are long-lived and usually larger in size

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