Cooperation I Flashcards
What is evolution?
Change in allele frequency of a population, driven by mutation, drift, and natural selection that leads to a concept of reproductive (direct) fitness
Social evolution is concerned with the
Effect of one individual on the reproductive fitness of another
What is social evolution?
Evolution involving social effects
At what levels/scales can social interactions occur?
- Gene
- Genome
- Complex cell
- Multicellular organism
- Society
- Interspecies mutualism
How are social behaviours classified with reproductive fitness
With effect on actor in the y, and cooperation and competition/conflict on the x
Reproductive fitness aka
Direct fitness
What is a social behaviour that confers positive reproductive fitness on both actors
Mutual benefit
What is a social behaviour that confers positive reproductive fitness on one actor, but introduces competition/conflict in the other
Selfishness
What is a social behaviour that confers positive reproductive fitness on one actor, but introduces negative/zero effect in the other
Altruism
What is a social behaviour that confers negative effects on both actor and recipient
Spite
Eusocial insects
Termites, bees, wasps, ants
Why are genes a mutualism?
Largely, they are an egalitarian system: genes are always represented and always replicated
What type of theory is group selection?
Naive