ミナミキイロアザミウマ個体群の生態学的研究 (14) : 密度と交尾率

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  • Studies on the population ecology of Thrips palmi Karny. XIV Relationship between the density and rate of copulation.
  • ミナミキイロアザミウマ個体群の生態学的研究　　ＸＩＶ　密度と交尾率
  • ミナミキイロアザミウマ コタイグン ノ セイタイガクテキ ケンキュウ 14 ミ
  • XIV. Relationship between the Density and Rate of Copulation
  • XIV. 密度と交尾率

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To analyse the relationship between the density of Thrips palmi and the rate of copulation, 4 plots with different densities of T. palmi were set up in plastic houses in which cucumber was cultivated. Each density level was maintained by spraying insecticides. In plots with low densities, the rate of copulation was also low, and the relationship could be expressed as y=1-e-20.93x(y: rate of copulation, x: number of adult females per leaf). The low density effect strongly influenced the population fluctuations of T. palmi.

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