寄主と寄生蜂の相互作用系の中で寄主個体群の増殖に密度効果が見られるか

概要

論文の詳細を見る
The pronounced effect of population density. on the reproductive rate has been observed in the experimental population of single species, but the problem has not been solved whether it is operative under the attack of its parasite or predator. To solve this problem, the density effect was estimated by measuring the body weight of the azuki bean weevil, Callosobruchus chinensis, in the mixed population interacting the weevil and its parasite, Neocatolaccus mamezophagus or Heterospilus prosopidis. The average body weight of the weevil in a single population was heavier than that in the interacting population of host and parasite and also that reared under low percentage of parasitism was heavier than that under high percentage. It is presumed from these results that the density effect is not so highly operative in the interacting population of host and parasite, to control the growth of the host population, as observed in the single population of the host species.
日本生態学会の論文
1956-01-31