Form of energy Kcal/m/yr Efficiency of energy transfer (%) Sunlight 600,000 n/a Chemical energy in producers 6,585 Chemical energy in primary consumers Data from: 1. M. Tal, Energy Flow in the Sat Marsh Ecosystam of Georgia. Ecokogy 43:614-24 (1962). 81 a. Calculate the efficiency of energy transfer by the producers. That is, what percentage of the energy in sunlight was converted into chemical energy and incorporated into plant biomass?
Form of energy Kcal/m/yr Efficiency of energy transfer (%) Sunlight 600,000 n/a Chemical energy in producers 6,585 Chemical energy in primary consumers Data from: 1. M. Tal, Energy Flow in the Sat Marsh Ecosystam of Georgia. Ecokogy 43:614-24 (1962). 81 a. Calculate the efficiency of energy transfer by the producers. That is, what percentage of the energy in sunlight was converted into chemical energy and incorporated into plant biomass?
Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Chapter54: Ecosystems And Global Change
Section: Chapter Questions
Problem 9TYK: The amount of energy available at the highest trophic level in an ecosystem is determined by: a....
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Transcribed Image Text:Interpreting Data In a classic study, John Teal measured energy flow in a salt marsh
ecosystem. The table below shows some of his results.
Form of energy
Kcal/m?/yr
Efficiency of energy transfer (%)
Sunlight
600,000
n/a
Chemical energy
in producers
Chemical energy in
primary consumers
6,585
81
Data from: J. M. Teal, Energy Flow in the Salt Marsh Ecosystem of Georgia. Ecology 43: 614-24 (1962).
a. Calculate the efficiency of energy transfer by the producers. That is, what percentage of the
energy in sunlight was converted into chemical energy and incorporated into plant biomass?
b. Calculate the efficiency of energy transfer by the primary consumers. What percentage of
the energy in plant biomass was incorporated into the bodies of the primary consumers? What
became of the rest of the energy?
c. How much energy is available for secondary consumers? Based on the efficiency of energy
transfer by primary consumers, estimate how much energy will be available to tertiary
consumers.
d. Draw a pyramid of production for the producers, primary consumers, and secondary
consumers for this ecosystem (see example in your textbook).
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