11:216:101 Lecture Notes - Lecture 2: Drug Resistance, Germination, Peromyscus Maniculatus

• School: Rutgers University
• Department: Ecology, Evolution, and Natural Resources
• Course: 11:216:101
• Professor: S Sukhdeo

Document Summary

Natural selection: differential (unequal) survival reproduction (offspring) of individuals with certain advantageous (cannot predict ahead of time, what the advantageous trait will be) traits will contribute disportionately to the makeup of ___ in the next generation. Bad eye sight a trait that would"ve killed you back millions years ago. We can"t breathe at the top of a mountians. Sherpa can, they have adapted to environment/altitude. Advantages-> offspring- some are going to carry advantageous trait: deer mice (peromyscus maniculatus, sand hills, nebraska: prairie grass, sand dunes, 10-15,000 yrs scrub desert during medieval warm period, quarts grain sand, 2 color variant coats. Belly fur: white: predators: snake, birds, coyote/foxes, white mice die in grass; dark mice survive, dark mice die in sand dunes; light mice survive, variation of light and dark dorsal coat, mutation called agouti gene. Eat shell medium sized seeds: measured beak length and depth, measure plants, seeds, fruits produced, 1976 avg.