BIOL 190 Lecture Notes - Lecture 22: Plate Tectonics, Exponential Growth, Population Ecology

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9 May 2017
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An important idea in our study of evolution is that the environmental impacts which individuals will survive and reproduce and the environment constantly changes. Long term (slow change, millions of years) Why mesozoic reptiles in ghana (west africa) and brazil look so similar. How marsupials were free to evolve in isolation in australia. Primary succession - starts with bare rock ******************* 1991-2012 average temperatures compared with 1901-1960 average. Bottom line- there is tremendous variation in the environment, and the environment changes over time. Important to our study of evolution because populations evolve. Population- a group of animals of the same species that live in the same general area. Population ecology- study of factors affecting population. Density- number of individuals per unit of area. Structure- how many individuals in each age group. All the trout in one river, one part of a river, all rivers in the us. Growth rate- how fast the population is growing.

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