BIOL 2335 Lecture Notes - Lecture 20: Primary Production, Wet Meadow, Tropical And Subtropical Moist Broadleaf Forests
Document Summary
Producers transform inorganic energy into form usable by other organisms: sun provides energy for organisms to produce more biomass, 1% solar energy striking producers captured by gpp (gross primary productivity. Difference between gross primary productivity and net primary productivity (gpp, npp) and why primary productivity is important. Factors that explain broad patterns in terrestrial primary productivity. Rank areas in terms of productivity (greatest to least: tropical forest, temperate forests, boreal forests, deserts. Which of following do not explain broad (global) patterns of terrestrial productivity: light, nutrients, rainfall and temperature do explain global patterns of terrestrial productivity. You are studying what limits productivity in alpine meadows, where there is a gradient in water availability (from wet to dry meadows). Design an experiment that examines in the natural habitat, the importance of nitrogen (no3-), phosphate (po42-) and water. Experiment: we could try to vary the amounts of nitrates, phosphates and water (high vs moderate vs low levels).
