Gliwiz Z M
Max-Planck-Institut für Limnologie, Postfach 165, Plon, Germany.
Oecologia. 1994 May;97(4):458-461. doi: 10.1007/BF00325882.
Various instars of four different cladoceran species representing a wide spectrum of body size were grown at high food availability in the presence and in the absence of natural densities of an invertebrate predator, a cyclopoid copepod Acanthocyclops robustus (G.O. Sars). Daily weight increments calculated from individual weights at the end and at the beginning of each 1, 2 or 4 day experiment, showed that individual growth was more or less drastically retarded in the presence of the predator as well as when exposed to water in which the predator had been feeding. The data also showed that the effect of this invertebrate predator was more pronounced in small prey instars and small prey species that were more vulnerable to predation than large prey.
在食物充足的条件下，分别在有无自然密度的无脊椎动物捕食者——一种剑水蚤类桡足动物粗壮棘剑水蚤（G.O. 萨斯）存在的情况下，培养了代表广泛体长范围的四种不同枝角类物种的各个龄期。根据每次1天、2天或4天实验结束和开始时的个体重量计算出的每日体重增加量表明，在有捕食者存在时以及暴露于捕食者摄食过的水中时，个体生长或多或少会受到严重抑制。数据还表明，这种无脊椎动物捕食者对小型猎物龄期和小型猎物物种的影响比对大型猎物更明显，因为小型猎物比大型猎物更容易被捕食。
