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Unformatted text preview: On land, production is limited by • Where is productivity highest in marine habitats? C. Analyzing energy flow: What happens to primary production? e.g. Hubbard Brook experimental forest, NH external energy/nutrient source kcal/m 2 /year primary producers of the energy in sunlight is captured by photosynthesis of this: % to growth*; % to respiration consumers decomposers % to herbivores % in dead material * D. Trophic levels among consumers and decomposers Trophic level Feeding strategy Grazing food chain Decomposer food chain 5 4 consumer 4 3 consumer 3 2 consumer 2 1 consumer 1 Autotroph add other species that eat algae and cyanobacteria E. How does energy flow from producers to consumers? Why is so much energy lost at each trophic level? • • • III. Biogeochemical cycles … bio … geo … chemical … the other way that components of ecosystem are connected e.g. nitrogen cycle, carbon cycle … Humans are...
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