Parental behavior 1 Flashcards

1
Q

parental behaviour def

A

Behavior expressed by parents towards
their offspring- providing food, shelter,
warmth and social contact

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1
Q

parental behaviour is a special case of X behviour

A

social

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2
Q

A special case of social behavior:
Between special individuals (closely x)
At special x of life (peri-natal to weaning)
At special x (birth site)
Special form of fitness cost & benefit rules

A

A special case of social behavior:
Between special individuals (closely related)
At special time of life (peri-natal to weaning)
At special locations (birth site)
Special form of fitness cost & benefit rules

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3
Q

Parental behavior: the evolutionary
perspective
◼ Contribution to xx theory

A

◼ Contribution to inclusive fitness theory

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4
Q

inclusive fitness theory
def/explain
REVIEW

A

explains how natural selection can favor behaviors that enhance the reproductive success of an individual’s relatives, even at a cost to the individual’s own direct reproduction.

r x b > c

Parental investment is paid off with
offspring survival
When a related animal helps another related animal to Reproduce or survive to pass
on genes to next generation.
◼ Offspring’s survival increases heritable
potential/fitness of parents

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5
Q

parent-offspring conflict theory
REVIEW
MATH

A

offspring demand more ressources than the mother can provide

goals:
offspring: benefit from parents. the more care/ressources the better
parents: provide care depending on cost benefit payoff and availability of resources

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6
Q

Parent-Offspring Conflict:
All scenarios are beneficial to the x; but
only the first two increase the x fitness.

A

All scenarios are beneficial to the offspring; but
only the first two increase the parent’s fitness.

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7
Q

reproductive strategies (3)

A

Litter size
- Large litter- increase population quickly
Developmental stage of young
-Well developed young- less risk of loss
Parental investment
- None, single parent, pair-bond

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8
Q

Oligotocous and polytocous
defs

A

Oligotocous : one or few young at each birth
Polytocous: large litter at each birth

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9
Q

Altricial and precocial def and ex

A

Altricial: hatched or born early in
development- ex rodents

Precocial: hatched or born late in
development. ex ungulates

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10
Q

Precocial vs altricial and socialization
explain when each begin socialization

see graph after

A

precocial (born late)- they begin to communicate with mom before birth. (movement or changes in heart rate, hormones)

altricial (born early)- socialization begins after birth. for ex some even deaf and blind when born.

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11
Q

predatory vs prey:
predators tend to be altricial or precoial?
* Predators- leave offspring to hunt.

A

predators tend to be altricial
* Predators- leave offspring to hunt
they hide the babies to avoid risking safety and go hunt.

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12
Q

single vs multiple:
single offspring tend to be altricial or precocial?

A

single offspring tend to be
precocial
- because they receive more resources and attention from the parent, allowing them to develop more quickly and become independent sooner

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13
Q

pair-bond vs polygamous:
pair bonds tend to be altricial or precocial?

A

altricial
both mom and dad take care of baby. more care tf more likely altricial

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14
Q

R vs K selection
this is a scale

R def

A

Million of eggs spread
into env. No parental
care at all. Small
proportion survive
R = reproduction

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15
Q

2 basic strategies for reproduction
this is a scale

K def

A

Put all energy for one
offspring then rest of
energy into parental
care to ensure
survival

16
Q

early care:
parental investment begins with …

A

gamete production

17
Q

early care: differential investment between males and females

eggs- large or small investment. why?
sperm- large or small investment. why?

A

◼ Eggs- larger investment, limited number
-Mate selection- choosy
◼ Sperm- smaller investment, large numbers
- Mate selection- Less discriminating!

18
Q

birth and bonding:
parental behaviour beomes a social behaviour when.. x and x

A

parental behaviour beomes a social behaviour when young are hatched or born and when the young start to repsond or emit signals

19
Q

licking off offpring
cause?
function?

A

cause:
-natural intrict
-hormonal change

function:
-keeps warm, stimulates circulatin of blood, stimulates breathing
-promotes bonding- physical contact and scent
-stimulates the release of newborn fluids- urine and sweat
-stimulates release of milk from mother

20
Q

Mother-offspring bond:
◼ Precocial ungulates have 2 strategies of newborn care
name and ex of animal

A

Hiders- deer, cattle
Followers- sheep, goats

cattle and some species can switch between strategies
- this is influenced by the bahvior of the dam (predation risk, ressources, etc)

21
Q

Use of shelter by ewes
at parturition:
sheltering behaviour increased if ewes were recently x

A

shorn
-cooler tf needed more shelter

shows that management influecnes behaviour

22
Q

How ewes recognize lambs:
3 ways

A

birth fluids
odor

later uses visual and auditory recognition

23
Q

How lambs recognize ewe:

A

visual and auditory cues

24
Q

period of maternal responsiveness def

A

short period following birth that the mother exhibits a strong, caring behavior

25
Q

words of the day

A

dog and bovine

26
Q

Creche formation sheep

A

Move away spend time with other. Distance increases over time

27
Q

weaning: nursing bouts

A

shift from ‘on demand’ to being
controlled by ewe

28
Q

nursing is controlled by the..
this can cause a parent/offspring x
-this occurs when the demands may impact the next years x

A

ewe
conflict
offspring

-Will give what’s needed then
cut off bc costing the mom.