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LearnObject_MGT2011_Lect10to12 - Learning objectives Intro...

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Learning objectives, Intro Biology 152, Ecology section (Turner, Fall 2011, Week 4) Lecture 10 – Island equilibrium; energy flow and trophic structure How do ecosystems function? Key concepts Biogeographic factors also influence species diversity. The size of an island and its distance from the mainland influence the expected equilibrium number of species on an island in predictable ways. Ecosystem ecology addresses processes, such as energy flow and nutrient cycling, which consider the community and its abiotic environment; these cannot be observed at other levels. Primary production is the foundation for the energy budget of every ecosystem. Cellular respiration is a “cost” for all organisms. Learning objectives Draw and know how to interpret the predicted relationships of species immigration and extinction as a function of the number of species present, the distance from the mainland and the island size. Know: NPP = GPP – R Explain the relationship between biomass, primary productivity and net primary productivity.
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