ESCI 1 Lecture Notes - Lecture 5: Selective Breeding, Keystone Species, Niche Differentiation
6 Jun 2020
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Document Summary
Darwin voyage; reading material and how it shaped his ideas: voyage of the beagle. from 1831-1826. Darwin"s 2 main observations and his inference that helped him develop and describe the natural selection process: natural selection and adaptation. Observations in the galapagos marine iguanas, birds, tortoises, marine fossils inheritable variation, high reproductive activity, not all organisms survive to reproduce, differential reproductive success (natural selection). Evolution: definition individuals with more favorable genetic traits are more likely to survive and reproduce. the cumulative genetic changes that occur in a population of organisms overtime. How is it different from natural selection: selected breeding (by humans) in domesticated species to achieve desired traits, dogs from wolves, a domesticated wolf. horses, fruits and vegetables The origin of species: published in 1859 by charles darwin. Described his observations during his time in the galapagos islands. Example the changes a species must go through to better ensure their survival in a specific environment.
