EEB 122 - Lecture 36 - Selfishness and Altruism

Lecture 36 - Selfishness and Altruism

Overview

Originally, altruism and self-sacrifice were thought to be incompatible with natural selection, even by Darwin. Now we have several explanations for how altruism can increase an individual's fitness. One is kin selection, or the idea that helping relatives can help increase one's genes in the population. Another involves ecological constraints and punishments. Here, individuals contribute to the group and wait their turn to reproduce.

Resources

Assignment

Krebs, John R. and Nicholas B. Davies. An Introduction to Behavioral Ecology, chapter 11

Course Media

Transcript

html

Audio

mp3

Low Bandwidth Video

mov [100MB]

High Bandwidth Video

mov [500MB]