| 1. | In addition, numbers vary widely between years due to the large population fluctuations.
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| 2. | The post office had disbanded by 1915 after significant population fluctuations.
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| 3. | Elton later applied these ideas of population fluctuations to animals.
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| 4. | Others argued that frogs and toads undergo natural population fluctuations.
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| 5. | The overall number changes with a state's population fluctuations.
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| 6. | However, these interventions are not always seen favorably, since natural population fluctuations are not permitted.
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| 7. | Census figures are unable to capture these dynamic population fluctuations that are associated with seasonal tourism.
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| 8. | So far, the population fluctuations may be normal.
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| 9. | Long-term studies are beneficial for separating the effects of normal population fluctuations from the effects of timbering.
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| 10. | Other recent studies have linked large-scale climate changes to population fluctuations in American songbirds and European butterflies.
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