Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Ecology > Chapter 8 > Flashcards

Chapter 8 Flashcards

0
Q

Fecundity

A

Number of offspring produced per reproductive episode

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

Life history

A

Life cycle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Parity

A

The number of reproductive episodes an organism experiences

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Parental investments

A

Time and energy given to an offspring by its parents

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Longevity

A

Lifespan of an organism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Slow life history

A

Slow development
Delayed maturity
Low reproductive rate
High parental investment per offspring

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Fast life history

A

Fast development
Rapid sexual maturity
High reproductive rate
Low parental investment per offspring

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Life history traits

A

Fecundity
Parity parental investment
Longevity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What does. Plant life history depend on?

A

Environmental conditions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

3 categories of plants

A

Stress tolerate
Competitor
Ruderal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Stress tolerators

A

Small herbs with a long life span, slow growth, and a long time until sexual maturity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Type of reproduction for stress tolerators?

A

Vegetative reproduction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Competitors

A

Grow fast
Early sexual maturity
Little energy to seed production

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Ruderals

A

Grow fast

Devote energy to reproduction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Principle of allocation

A

States that life history traits are adapted to maximize fitness
Resources can only be devoted to one body structure, physiological function, or behavior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Trade offs

A

When one life history trait is favored it prevents the adoption of other advantageous traits

16
Q

What does natural selection favor?

A

Individuals that allocate resources in a way that achieves maximum fitness

17
Q

Offspring number vs size

A

Trade off between number of offspring and the size of the offspring
Selection favors a uniform offspring size

18
Q

Offspring number vs. parental care

A

More offspring then less amount of parental care and less chance of offspring survival

19
Q

Determinate growth

A

Individual does not grow anymore after it initiates reproduction

20
Q

Indeterminate growth

A

An individual continues to grow after it initiates growth

21
Q

Type of growth for long life spans?

A

Determinate growth

22
Q

Type of growth for short life spans?

A

Indeterminate growth

23
Q

High predation environment

A

Females allocate more resources to reproduction, produce more and smaller offspring

24
Q

Low predation environment

A

Females allocate less resources to reproduction and produce fewer and larger offspring

25
Q

Senescence

A

Decline in body condition and then death

26
Q

Semelparity

A

When organisms reproduce only once

Die after reproduction

27
Q

Iteroparity

A

When organisms reproduce multiple times during life

28
Q

Annual

A

Has a life span of one year

29
Q

Perennial

A

Life span of more than one year

30
Q

Why semelparity?

A

When there is a massive amount of energy needed for reproduction

31
Q

Why do some animals live longer?

A

They have better mechanisms for reducing the production of reactive forms of oxygen and repairing damaged DNA and protein molecules

32
Q

Photoperiod

A

The amount of light that occurs each day

Ecology (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions