PSYC 122 Chapter Notes - Chapter 3: Reciprocal Altruism, Polistes, Paper Wasp
Document Summary
Ch 3 alcock- the evolution of social behavior. Social behavior comes at many costs to individuals, with added parasites therefore some species do not end up with social behavior. Shows that social behavior is not necessarily superior. There must be an more benefits than costs. Cooperation- when two individuals both gain direct fitness immediately after helping one another. Wolf helping another wolf hunt prey- both get more food then they normally would. Male blue gills fend off bullhead catfish in nesting colony- all eggs are more likely to survice. The social paper wasp, polistes dominulus has a queen in which subordinate females may or may not be related to such queen. Because they do have the indirect benefits because they are unrelated the benefit to the subordinate bees seems nonexistent- but it is actually there because they may later inherit the nest- better fitness than solitary nesting females. Male lazuli buntings- the subordinate are dull, the dominant are brightly colored.
