Titlebook: Ecological Methods; With Particular Refe T. R. E. Southwood Book 1978 T. R. E. Southwood 1978 ecology.energy.insects.soil

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書目名稱Ecological Methods影響因子(影響力)




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Absolute Population Estimates using Marking Techniques,may be estimated (Le Cren, 1965). This was based on the principle that if a proportion of the population was marked in some way, returned to the original population and then, after complete mixing, a second sample was taken, the number of marked individuals in the second sample would have the same r

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The Construction, Description and Analysis of Age-specific Life-tables,al ecologists, such as Richards (1940), had expressed their results showing the successive reductions in the population of an insect throughout a single generation, Deevey (1947) was really the first to focus attention on the importance of this approach. Life-tables have long been used by actuaries