| 1. | Theoretically, it is easy to calculate ecological efficiency using the mathematical relationships above.
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| 2. | The ecological efficiency of an ecosystem is as a result often no better than an approximation.
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| 3. | Hence, by the late 1940s, British colonial authorities were debating the overall ecological efficiency of the lake.
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| 4. | The efficiency with which energy or biomass is transferred from one trophic level to the next is called the ecological efficiency.
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| 5. | "' Ecological efficiency "'describes the efficiency with which energy is transferred from one trophic level to the next.
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