Brainscape's Knowledge GenomeTM

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


See full index

Life on Earth > Lions > Flashcards

Lions Flashcards

1
Q

How many females in a lion pride

A

3-12

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

How many adults in a lion pride

A

1-6

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

Who hunts in lion prides

A

Female

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

Who defends the pride, young and territory in lion prides

A

Males

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

Females are naturally philopatric - what does this mean

A

Remain in pride for their entire life

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

Between what ages can female lions reproduce

A

4-18

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

Who is smaller - female lions or male lions

A

Female lions

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

Describe the life of a male lion

A

Leave natal pride after 3 years
Spend several years as nomads before attempting to take over a pride
After a successful take over, lion will remain with pride until driven out by a new male

Short reproductive life

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

Why is a males size important

A

Male-male conflicts

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

What are the downsides to a large body

A

Need 7kg of meat a day

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

What do darker manes signal

A

Aggression and greater fighting ability

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

What do males with darker names suffer from

A

More heat stress

Defective sperm

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

Do female lions have a breeding season

A

No - reproduce throughout the year

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

Why do pride females show synchronised oestrous

A

Individuals pheromones influence entire pride

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

What are the advantages of cubs being born at the same time

A

Crèches can be formed within the pride. Mum can leave cub with other females while hunting and other females can feed cub so mum isn’t tied down to set feeding time. Means 5 or 6 females can hunt at once rather than 1 or 2

If cubs born at the same time, they will have companions when they leave the pride

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Why do female lions help with hunting, cub defence and suckling

A

Within a pride the females share a high proportion of alleles with each other and the cubs. Cooperation links to kin selection - look after cubs then their fitness increases

17
Q

Why do female lions copulate lots

A

Need physical stimulation to release egg

18
Q

How long are females on heat for

A

2-4 days every month

19
Q

How often do females copulate

A

Every 15 minutes

20
Q

How many cubs survive to adulthood

A

Less than 20%

21
Q

How many copulations per cub that survives to adulthood

A

3000

22
Q

What are the advantages of copulating lots

A

Reduces risk to female and reduces time wasted as a result of male-male conflict over who gets to copulate with female

Male lions kill the cubs of other males. If the female copulates with lots of males then it creates uncertainty as to who the father is so the cubs are not killed - pride males will treat them as their own even if they’re not

23
Q

Why do males kill the cubs of other males

A

Increases their own reproductive success

24
Q

What infanticide by male lions

A

The killing of cubs that do not belong to the male - happens when male takes over a new pride

25
Q

What causes the spontaneous miscarriage of mice

A

Urine of an unfamiliar male

26
Q

What is the function of infanticide by males

A

Female lions ovulate less due to breast feeding - takes up to 20 months to ovulate again. By killing the cubs, females ovulate again within 5 months. Male lions have short reproductive lives so is advantageous to kill cubs so they can produce more of their own cubs

27
Q

Do females defend their cubs from pride male

A

Yes to a certain point - don’t want to get hurt. 2 females can fight 1 male but males are still bigger and stronger

28
Q

What do females do if their cubs are killed

A

Copulate with pride males. This draws in other male lions and the females copulate with them. This makes the pride bigger and stronger as contains lots of males

29
Q

Why do male lions work together

A

Individuals benefit from being in a larger group

30
Q

When males work together their reproductive success increases - true of false

A

True

Life on Earth (18 decks)

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