BIO318Y5 Lecture Notes - Lecture 14: Hymenoptera, The Major Transitions In Evolution, Eusociality
Document Summary
Last lecture: the advantages of living in groups, the importance of controlling for other variables in experimental manipulations. When manipulating variables, other things happen: ex. Have control experiments for those other things that happen: ex. Social interactions between individuals: cooperation last time. Understanding selfishness important to theories about the evolution of the major evolutionary transitions that involved cooperation: evolution of multicellularity and the origin of eukaryotes via prokaryote symbiosis. Cooperation: living in groups: predator satiation. So many of you that if you breed in groups, there"s a lesser chance of you being picked and eaten: selfishness within herd . Complicated moments where individuals try to get to middle where it"s most safe: increased vigilance, increase in defences. Bad tasting and weaponry pooling their defenses. How animals help others: reciprocity (reciprocal altruism , true altruism, reciprocity. Helping someone today and they help you out tomorrow: in vampire bats, cheats are punished. Protagonist vampire bat: nocturnal ecology workshop.
