What is altruism and kin selection?
Kin selection theory predicts that animals are more likely to behave altruistically towards their relatives than towards unrelated members of their species. Moreover, it predicts that the degree of altruism will be greater, the closer the relationship.
What is kinship selection theory?
Kin selection occurs when an animal engages in self-sacrificial behaviour that benefits the genetic fitness of its relatives. The theory of kin selection is one of the foundations of the modern study of social behaviour. British evolutionary biologist W.D.
How is reciprocal altruism different from kin selection quizlet?
**Kin selection- favors this kind of altruistic behavior by enhancing reproductive success of relatives. **Reciprocal altruism is the exchange of help among unrelated individuals.
What are some examples of reciprocal altruism?
An example of reciprocal altruism is cleaning symbiosis, such as between cleaner fish and their hosts, though cleaners include shrimps and birds, and clients include fish, turtles, octopuses and mammals.
What is Hamilton’s theory?
Hamilton’s rule is a central theorem of inclusive fitness (kin selection) theory and predicts that social behaviour evolves under specific combinations of relatedness, benefit and cost.
What is the key difference between kin selection and group selection?
What is the key difference between kin selection and group selection? Relatedness. Kin selection is altruism that helps to increase a relative’s fitness and consequently the individual’s own fitness. Group selection is a process where an individual’s detrimental behavior is beneficial to the population.
How does kin selection differ from reciprocal altruism?
Kin selection favors the reproductive success of the other relatives even at a cost to the organism’s own survival and reproduction while, in reciprocal altruism, an organism reduces its own fitness by increasing the fitness of another organism.
How could group selection possibly explain the survival of the trait of altruism?
The debates over group selection maintain their vitality for several reasons: because group selection may explain the evolution of altruism; because “altruistic” traits ─ traits that reduce an individual’s fitness while increasing the fitness of another ─ constitute a well-known puzzle for the theory of natural …
How is kin selection different from reciprocal altruism?
Does kin selection apply to humans?
In humans, altruism is both more likely and on a larger scale with kin than with unrelated individuals; for example, humans give presents according to how closely related they are to the recipient.
What is the difference between kin selection and group selection?
The intuitive idea is that kin selection occurs in populations that are structured such that relatives tend to interact differentially, whereas group selection occurs in populations in which there are stable, sharply bounded, and well-integrated social groups at the relevant grain of analysis.