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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Age-grouping of Insects, Time-specific Life-tables and Predictive Population Models,en most widely applied with vertebrate populations. Analysis is easiest with two extreme types of population — the stationary and the expanding. If the population can be assumed to be stationary, then the fall-off in numbers in successive age groups will reflect the survivorship curve and thus a tim

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Estimates based on Products and Effects of Insects,of these indices to the absolute population varies from equivalence, when the number of exuviae are counted, to no more than an approximate correlation, when the index is obtained from general measures of damage.

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T. R. E. Southwood 1978

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