BIOSC-101 Lecture Notes - Lecture 29: Kin Selection, Propagule, Social Evolution
26 Aug 2020
School
Department
Course
Professor
Document Summary
Biological altruism is critical for social evolution. Group selection can prevail over individual selection. Animals have found way to resolve conflicts that don"t get them killed. Individual behaviors that might be disadvantageous might still help others in the group. If groups are individuals in units, then the fitness of the group might be facilitated by cooperative behaviors. Natural selection will favor selfish individuals that won"t. Altruists will more likely survive more than selfish affect the individual. Propogule model individuals in the group individuals. Weaker than the propagule model over time. Idea that small populations are created than the selfish. Lots of immigration then the theory will be washed out. Populations with higher altruists will generate more offspring, making more propagules and have higher frequencies of altruist alleles. Migrants that found a new population are drawn from current ones. Selfish individuals in high numbers, most likely the. Altruistic individuals in higher numbers, population will.
