BIO 1130 Lecture Notes - Lecture 3: Medium Ground Finch, Peppered Moth, A Touch Of Dead

• School: University of Ottawa
• Department: Biology
• Course: BIO 1130
• Professor: Marc Charette

Document Summary

All species can produce more offspring than their environment can sustain and many of these offspring fail to survive and reproduce. Example: mola sunfish, lots of eggs, only a few survive. Members of a population often vary in their inherited trait. Inherited traits: reproductive success, due to adaptation. 1858 receives a letter from scientist alfred russel wallace. Come to the conclusions as darwin concerning the theory of natural selection b observing the fauna of indonesia. 23 years after darwin publicly released his views on the evolution of species in 1859. Book (cid:272)alled (cid:862)o(cid:374) the origi(cid:374) of pe(cid:272)ies(cid:863: became the best seller- created a great controversy. Only hereditary traits are subject to natural selection. For evolution to occur, we need genetic variability. With time, natural selection enables individuals to become better adapted to their environment. Cheetahs are not subject to evolution because there is a small genetic variablility. Environmental factor vary in time and space (season)