PSYC 385 Chapter Notes - Chapter 4: Alloparenting, Selfishness, Forego

• School: Simon Fraser University
• Department: Psychology
• Course: PSYC 385
• Professor: Timothy Racine

Document Summary

4. 1 malthus: checks on reproduction and competition to. Thomas malthys english thinker; published an essay on the principles of population in 1978. Book contains claims only some which are relevant to natural selection. 2 types of claims: specific claims about future of human population in europe: general principles he derived about the dynamics of populations only this is necessary for understanding natural selection. Malthus" irrelevant ideas: poverty and famine became less common in europe, not more, because agricultural productivity and economic growth went up, and family size went down. 4. 1. 1 exponential population growth example pg 78. Not all individuals survive and reproduce as much as they predicted. Reproductive success the number of viable descendants produced. Is 0 for any that fie at birth or at a young age. 4. 1. 3 difference in reproductive success can lead to changes in the population. Natural selection requires there is differential reproductive success, but it is not sufficient to produce evolutionary change.