BIOE 20C Study Guide - Final Guide: Primary Production, Climax Community, Primary Succession

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Spp. diversity increases npp rates of new spp colonization. Diversity productivity disturbance habitat size high productivity supports more energy essentially higher resource demand. Hypothesis species o o quickly o higher spp. o species mix of r and k selected rare disturbance = few species. K selected species dominate intermediate disturbance = large areas support more spp tropics only area with adjacent. N/s hemisphere regions experimental studies more area = more spp supported more observational/ Role of ecological diversity o o how does diversity affect productivity stability net primary productivity = npp amount of plant material. Community productivity o available to herbivores & decomposers affect npp. Community stability two measures resistance: measure of how much disturbances affects a community quickly a community recovers from disturbance resilience: measure of how diversity increases this every plant in that community diverse communities able to diverse communities more. Equilibrium theory o o increases o decrease o rates of extinction increase.