Wrensch Dana L, Young S S Y
Acarology Laboratory, The Ohio State University, 43210, Columbus, Ohio.
Department of Genetics, The Ohio State University, 43210, Columbus, Ohio.
Oecologia. 1975 Dec;18(4):259-267. doi: 10.1007/BF00345850.
Four fitness traits, including fecundity, hatchability, duration of oviposition, and longevity, were studied in T. urticae. Comparisons were made between unfertilized and fertilized females reared on good and poor resources. Significant differences in total egg production, duration of oviposition, and longevity were observed with respect to fertilization status. Only total egg production varied significantly between maternal background environments. Hatchability was uniformly high. Fecundity was found to be the most influential character affecting fitness in spider mites. Further analysis of the distribution of daily egg productions was used to determine the various factors affecting intrinsic rates of increase including the rate of development, time of peak egg production, and duration of oviposition. The rate of development was shown to be the most important factor determining the intrinsic rate of increase. The relationships between these findings and the colonizing ability of spider mite populations were discussed.
对二斑叶螨的四种适合度性状进行了研究，包括繁殖力、孵化率、产卵持续时间和寿命。在以优质和劣质资源饲养的未受精和受精雌螨之间进行了比较。在受精状态方面，观察到总产卵量、产卵持续时间和寿命存在显著差异。仅总产卵量在母体背景环境之间有显著差异。孵化率一直很高。结果发现，繁殖力是影响叶螨适合度的最具影响力的性状。通过对每日产卵量分布的进一步分析，以确定影响内禀增长率的各种因素，包括发育速率、产卵高峰期时间和产卵持续时间。结果表明，发育速率是决定内禀增长率的最重要因素。讨论了这些发现与叶螨种群定殖能力之间的关系。
