Ch 13: Social Behavior and Sociality (animal behavior)

reciprocal altruism

the act of helping others in the hope that they will help us in the future

reciprocity

a helpful action that is repaid at a later date by the recipient of the assistance (b/c individuals that are helped generally return the favors they recieve)

prisoner's dilemma

a particular "game" between two captured prisoners that illustrates why cooperation is difficult to maintain even when it is mutually beneficial (defection is always the best strategy unless u have prior knowledge that the other participant is likely to cooperate)

multiplay prisoner's dilemma

scales the game up to more than two players, and is oftem used to model collective action problems and societal issues

alloparental care

primary benefit of grouping is access to offspring care, often from father or social partner, and sometimes fron kin that helps a mother rear her brood

cooperative breeding

type of social system in which more than two individuals care for young

helpers at nest

Birds (relatives) stick around to help assist with parents new offspring which benefits the helper as he is indirectly helping the reproduction of his own genes while waiting to mate later in life

Primary helpers

juvenile helpers that are offspring of the parents being helped

deliver more help than secondary helpers

secondary helpers

juvenile helpers that are unrelated to parents being helped

deliver less help than primary helpers