Lecture 11 - Lecture 11 Ecological Interac1ons Ecosystem...

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Lecture’11 ’ Ecological’Interac±ons’&’Ecosystem’Stability
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A"er this class and the associated reading you should be able to: Characterize interac,ons between species explain the compe,,ve exclusion principle Diferen,ate between Fundamental and realized niches Relate the above concepts to character displacement Explain how preda,on can lead to predator-prey cycles Predict popula,on growth oF species in a trophic cascade Explain how ecological redundancy afects the robustness oF ecosystem Func,ons Give an example For type I and type III ecosystem response curves
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Review: What’could’account’for’this’popula1on’growth’ curve?’
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Species do not exist in a vacuum What are various ways in which popula=ons of diFerent species interact with each other?
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hAp://en.wikipedia.org/wiki/File:Male_Lion_and_Cub_Chitwa_South_±frica_Luca_Galuzzi_2004.JPG’ Preda=on +/-
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Compe==on for’space’and’other’resources’(in’this’case’ for’light).’ -/-
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Mutualism +/+
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What’happens’when’two’species’compete’for’ exactly’the’same’resource?’
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