EEMB 131 Lecture Notes - Lecture 19: Extinction Event, Macroevolution, Microevolution
15 Mar 2018
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Document Summary
12 questions with 3 from materials before the midterm. Questions will not be from previous midterms/ final. Only look at long period and big changes. Adding niche space via key innovations, generally with increase complexity. Increase number of species by niche subdivision/ merger no change in n*max (debatable) More common in low altitude and places that are stable. Replacement: no change in n* max or n* But also open up new niches, may have positive effect later on. All mentioned drivers can break the equilibrium but it is rare. Number of species reaches equilibrium as time increases, but there will be ~ Adaptive space has boundaries set by physical and biological variables. Vs. d-d model, in which all (100%) replacement are by competitive exclusion. In chemistry and physic, it is possible to get model that fits all 3 desirable properties. Agm is real, general, but loses precision (the ability to predict what is going to happen to single species)
