Notes for Chapter 11 (In Part): Energy in Ecosystems
and Chapter 13: Communities and Ecology
 

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Chapter 11 (pp. 272-276 only)

IV. Biomass, Energy, and Ecosystem Structure
    terms: biomass, wet vs. dry weight, dry organic matter,
     standing stock

    a) The Distribution of Biomass among Plants, Herbivores,
        and Carnivores
    terms: pyramid of biomass, pyramid of energy,
     pyramid of numbers

    b) Energy Flow - A Key to Inverted Pyramids

  RQ 11.1 (Fig. 11.9): Explain why the Black Sea has an
        inverted pyramid of biomass, whereas the tropical
        Pacific epiplankton does not.


Chapter 13 (all)
 

Case History: High Tech in Deep Space

Description of Research Vessel - Pt. Lobos at MBARI Website

I. Life at the Open Sea Surface
        terms: compensation depth, critical depth, spring bloom

    a) The Standard Cold-temperate Ocean

RQ 13.1: Describe annual patterns of productivity in the North
    Atlantic, bringing the terms compensation depth and critical
    depth into the description.

    b) The Seasonal Cycles in Other Oceans

RQ 13.2: Describe annual patterns of productivity in the Sargasso
    Sea, bringing the terms compensation depth and critical
    depth into the description.
 

    c) The Annual Productivities of Oceanic Communities
        terms: net primary productivity (NPP), eutrophic,
            oligotrophic

RQ 13.3: Contrast the following habitats in terms of the "apple
        index" used in Fig. 13.4 (equivalent amount of carbon
        in apples per square meter per year): tropical rain forest,
        cropland, desert, rocky intertidal, open ocean, kelp bed,
        coral reef.
 

II. Communities in the Deep Sea

    a) Life in Deep Open Water

    b) The Bottom of the Sea

        1) The abyssal seafloor is sustained by the arrival of
            food from the surface

RQ 13.4: What sorts of organisms are found on a typical
     ocean bottom and what do they feed on? What limits their
        abundance?

        2) Hydrothermal vents support communities unlike any
            other on Earth
        terms: hydrothermal vents, black smokers, seeps, trophosome
            more black smoker links: 1 - 2 - 3 - 4

 RQ 13.5: Explain why life is so abundant around hydrothermal vents.

 RQ 13.6: How do the giant pogonophoran tubeworms around
     hydrothermal vents derive their energy?
 

         Featured organisms: hot-vent pogonophoran tubeworms
                    More Links: 1 - 2 - 3 - 4 - 5 - 6

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Forward to Chapter 14

This page created 4/18/01 © D.J. Eernisse, Last Modified 4/30/01