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Energy Flow in Rocky Intertidal Communities

Explore the intricate relationships within a rocky intertidal ecosystem, including food chains, productivity levels, consumption efficiencies, and decomposition processes. Discover how trophic pyramids and succession dynamics shape this unique ecological niche.

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Energy Flow in Rocky Intertidal Communities

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  1. IV. Ecosystem Ecology A. Energy Flow 1. Food chains 2. Productiion a. gross primary productivity b. net primary productivity 3. Consumption a. ecological efficiency 4. Decomposition 5. Trophic pyramids 6. What determines productivity

  2. Rocky intertidal community

  3. Simplified food web of a rocky intertidal community Pisaster (sea star) Thais (snail) Chitons 2 sp Limpets 2 sp Bivalves (Mussels) Acorn Barnacles 3 sp Goosenecked Barnacles 1 sp

  4. Disturbance

  5. Fig. 53.19 Succession on glacial moraines

  6. Fig. 53.10

  7. Primary producer = plants (and other photosynthetic organisms)

  8. Primary consumer = herbivore (things that eat producers)

  9. Tertiary consumer = carnivore (animals that eat secondary consumers)

  10. Omnivore = animal that eats from several trophic levels

  11. Fig. 54.1

  12. Detritovore = organisms that eat non-living organic matter

  13. Respiration 6CO2 + 6H2O + Energy C6H12O6 + 6O2 Photosynthesis NPP = GPP - Respiration

  14. Fig. 53.10

  15. Fig. 54.10

  16. Fig. 54.11

  17. Fig. 54.14

  18. Fig. 54.3

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