Biology 1001A Lecture Notes - Lecture 21: Evolutionary Arms Race, Garter Snake, Gross Domestic Product
Document Summary
Each species has less resources available because of presence of other species. Ex: cheetah and lion both compete for limited food resources. One organism benefits at the expense of the other. Predator benefits but the prey suffers from interaction. Interactions between hosts and their parasites (infections, viruses) During the cold war both us and soviet union were stock piling weapons until a huge proportion of the gross domestic product was funnelled into making nuclear arsenals both sides didn"t want to lose in having the most weaponry. Host and parasite examples of red queen equilibrium. Idea that you have to continually evolve better and better adaptations just to keep up with natural enemies. Ex: the garter snake is able to detoxify the newt because of the adaptation to be immune to the toxins. This is an example of an evolutionary arms race because both the newt and snake are competing to outdo the other.
