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APES U3 > Survivorship Curves > Flashcards

Survivorship Curves Flashcards

1
Q

What is a survivorship curve?

A

Display of relative survival rate of a group of individuals of the same age (cohort) in a population from birth to maximum age reached by any cohort member

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2
Q

What is life span?

A

Longest period of life reached by a given type of organism

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3
Q

What differences are shown in the survivorship curves?

A

Differences in relative longevity among species

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4
Q

What are the three general patterns of survivorship curves?

A

Type I, Type II, Type III

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5
Q

What is the type I pattern of survivorship curves?

A

Full physiological life span if organism survives childhood

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6
Q

What is the type II pattern of survivorship curves?

A

Probability of death unrelated to age

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7
Q

What is the type III pattern of survivorship curves?

A

Mortality peaks early in life

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8
Q

Examples of Type II curves?

A

Sea gulls and small mammals

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9
Q

Examples of Type III curves?

A

tree, insects, clams

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APES U3 (7 decks)

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