APG 201 Lecture Notes - Overproduction, Selective Breeding, Gray Wolf
Document Summary
Ideas of malthus, larmark, lyell and wallace: theory of natural selection, hms beagle voyage (1831-1836) Beagle voyage: encountered fossils, ancestors, galapogos island, finches, read lyells principles of geology, deep time. Artificial selection: all dogs descend from grey wolf, animal breeders. Approaching the theory of natural selection: by late 1830"s darwin recognized that, biological variation within a species is key, importance of sexual reproduction. Offspring resembled parents: read malthus essay in 1838, survival of the fittest (not enough resources for all organisms, overproduction of offspring, competition, individuals best suited would survive and reproduce. On the origin of species: by 1844, darwin completed on the origin of species , did not publish until 1859- why, sickness (tropical parasite, offense to religion, children dying blamed himself (weak genes) Alfred russell wallace: naturalist, suggested species descend from other species. Joint paper on evolution and natural selection with darwin in 1858. Darwin"s model: biological variation, overproduction of offspring.
