BIOL 1001 Lecture Notes - Lecture 6: Allele Frequency, Daphne Major, Directional Selection
23 Nov 2016
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51-55: canadian issues 1 evolution in action: do hunting and fishing select for undesirable. Natural selection: case study 2: why are beak size, beak shape, and body size changing in galapagos. Natural selection: common misconceptions about natural selection and adaptation, selection acts on individuals, but evolutionary change occurs in populations, during natural selection, individuals don"t change population does, e. g. beak size birds did not develop deeper beaks. Organism: idea that organisms can lose complexity contrasts. Lamarck"s view that organisms move higher on the chain of being: under evolution by natural selection, there"s no such thing as a higher or lower organism, 51-55. 70-73: types of natural selection, evolution by natural selection when heritable variation leads to differential success in survival and reproduction, 51-55. Seedcrackers: birds with short or long beaks survive best, seeds are either small (good for short beaks) or large (good for long beaks, disruptive slection can lead to formation of new.
