Animal Behaviour III

Pregunta	Respuesta
Altruism/ Cooperation	Effect on self Effect on others + - + Mutualistic Selfish - Altruistic Spiteful
Explanation for selfish behaviour	Direct benefit to ID
Explanation for spiteful behaviour	Indirect benefit to ID
Reason for parental care	Offspring have parental genes, help maximise genetic contribution to future generations
Coefficient of relatedness	G. similarity of 2 individuals relative to the population as a whole
C.O.R btw. parent + offspring	0.5
C.O.R btw siblings	0.5
C.O.R grandparents/aunts/uncles	0.25
"Genes eye view" of selection DIRECT FITNESS	Maximise reproductive success of ID it's in
INDIRECT FITNESS	Maximise reproductive success of ID who are likely to share copies of that gene
Inclusive fitness	Direct fitness + indirect fitness
Kin selection is an example of	Inclusive fitness AND Altruism
What is altruism?	Helping another individual at the cost of one's own survival and reproductive capabilities
Why killing offspring is favourable	Kill off weaker offspring so competition is reduced, maximises their own direct fitness
Hamilton's rule used to ___:	Identifies conditions under which altruism will be favoured due to kin selection
Kin selection according to Hamilton's rule	kin selection causes genes to increase in frequency when r*B-C > 0
Hamilton's rule	r*B-C > 0 r = C.O.R btw. actor // recipient B = Benefit to rec. C = Cost to actor
Examples of extreme altruism	Suicide + sterility in eusocial insects
C.O.R of male drones w/ queen	Haploid 1 C.O.R w/ queen
C.O.R of females	diploid 0.5
Table for C.O.R of eusocial haplodiploid insects	Male Female Mother 1 0.5 Daughter 1 0.5 Sisters 0.5 0.75
Naked mole rats hierarchy	Reproductive division of labour 1 reproductive queen 1-3 reproductive males
Why are they such a close-knit hierarchy?	High COR Overlap of generations
What sort of coop do they engage in?	Coop brooding Coop foraging

Altruism/ Cooperation

Effect on self Effect on others + - + Mutualistic Selfish - Altruistic Spiteful

Explanation for selfish behaviour

Direct benefit to ID

Explanation for spiteful behaviour

Indirect benefit to ID

Reason for parental care

Offspring have parental genes, help maximise genetic contribution to future generations

Coefficient of relatedness

G. similarity of 2 individuals relative to the population as a whole

C.O.R btw. parent + offspring

0.5

C.O.R btw siblings

0.5

C.O.R grandparents/aunts/uncles

0.25

"Genes eye view" of selection DIRECT FITNESS

Maximise reproductive success of ID it's in

INDIRECT FITNESS

Maximise reproductive success of ID who are likely to share copies of that gene

Inclusive fitness

Direct fitness + indirect fitness

Kin selection is an example of

Inclusive fitness AND Altruism

What is altruism?

Helping another individual at the cost of one's own survival and reproductive capabilities

Why killing offspring is favourable

Kill off weaker offspring so competition is reduced, maximises their own direct fitness

Hamilton's rule used to ___:

Identifies conditions under which altruism will be favoured due to kin selection

Kin selection according to Hamilton's rule

kin selection causes genes to increase in frequency when r*B-C > 0

Hamilton's rule

r*B-C > 0 r = C.O.R btw. actor // recipient B = Benefit to rec. C = Cost to actor

Examples of extreme altruism

Suicide + sterility in eusocial insects

C.O.R of male drones w/ queen

Haploid 1 C.O.R w/ queen

C.O.R of females

diploid 0.5

Table for C.O.R of eusocial haplodiploid insects

Male Female Mother 1 0.5 Daughter 1 0.5 Sisters 0.5 0.75

Naked mole rats hierarchy

Reproductive division of labour 1 reproductive queen 1-3 reproductive males

Why are they such a close-knit hierarchy?

High COR Overlap of generations

What sort of coop do they engage in?

Coop brooding Coop foraging

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	Creado por J yadonknow hace alrededor de 6 años