Unit 1: K and R Selected Species and Survivorship Curves Flashcards

1
Q

K-selected size

A

Large

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2
Q

K-selected number of offspring

A

Few

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3
Q

K-selected parental care

A

Present

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4
Q

K-selected lifespan

A

Long

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5
Q

K-selected number of reproductive events

A

Few

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6
Q

K-selected competition

A

High ability

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7
Q

K-selected examples

A

Elephants, humans

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8
Q

K-selected impact on ecosystem

A

Can’t overtake and ecosystem

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9
Q

K-selected as an invasive species

A

Not invasive

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10
Q

R-selected number of offspirng

A

Many

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11
Q

R-selected size

A

Small

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12
Q

R-selected parental care

A

Absent

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13
Q

R-selected lifespan

A

Short

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14
Q

R-selected number of reproductive events

A

Many

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15
Q

R-selected competition

A

Low ability

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16
Q

R-selected examples

A

House mice, some insects

17
Q

R-selected impact on an ecosystem

A

Can overtake and ecosystem

18
Q

R-selected as an invasive species

A

Invasive

19
Q

Type I survivorship curve

A

High survival until large groups die from old age. K-Selected.

20
Q

Type II survivorship curve

A

Constant decline throughout lifespan. R-selected.

21
Q

Type III survivorship curve

A

High death rate for young organisms, but organisms that make it to an older age survive.