Dormancy in Lymantria dispar (Lepidoptera: Lymantriidae): analysis of photoperiodic and thermal responses.
Dormancy in Lymantria dispar (Lepidoptera: Lymantriidae): analysis of photoperiodic and thermal responses.
复制标题
Lymantria dispar（鳞翅目：Lymantriidae）的休眠：光周期和热响应分析。
DOI：
10.1093/aesa/83.3.494
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发表时间：
1990
影响因子：
2.3
通讯作者：
L. Abrahamson
中科院分区：
文献类型：
--
作者：
M. Tauber;C. A. Tauber;J. Ruberson;A. Tauber;L. Abrahamson
舞毒蛾的休眠是一个动态的过程，其特征是对物理因素的复杂和季节性变化的反应。在夏末秋初，短日照在一小部分个体的滞育维持中起着很小但可察觉的作用。相比之下，温度在滞育维持和滞育后孵化的时间上起着更大的作用。温度>; 15.6°C减缓滞育发展，从而维持滞育，而暴露于5.0或10.0°C加速滞育发展，并提高温暖条件下孵化的发生率，速度和同步性。一些卵块中的一小部分个体在孵化前不需要经历低温;这些个体在秋天孵化。卵内幼虫的热反应随着它们在自然界中的休眠而变化;这些变化在温度-发育反应曲线、孵化所需的较低的热阈值和热单位以及在一定温度范围内的相对发育速率中是明显的。在整个休眠的热响应的变化模式表明，随着秋季和冬季的进行，有一个逐渐过渡滞育休眠期后滞育。休眠期间的热反应在卵块之间差异很大。
Dormancy in the gypsy moth is a dynamic process characterized by complex and seasonally variable responses to physical factors. At the end of summer and the beginning of autumn, short daylengths play a small, but perceptible role in diapause maintenance in a small proportion of individuals. By comparison, temperature has a much larger role in diapause maintenance and in the timing of postdiapause hatching. Temperatures >;15.6°C decelerate diapause development, and thus maintain diapause, whereas exposure to 5.0 or 10.0°C accelerates diapause development and enhances the incidence, speed, and synchrony of hatching under warm conditions. A small proportion of individuals in some egg masses need not experience low temperature before they hatch; these individuals hatch in the fall. The thermal responses of the larvae within the eggs change as they undergo dormancy in nature; these changes are evident in the temperature-developmental response curves, the lower thermal thresholds and heat units required for hatching, and the relative rates of development under a range of temperatures. The pattern of change in the thermal responses throughout dormancy suggests that as autumn and winter proceed, there is a gradual transition from diapause to postdiapause periods of dormancy. Thermal responses during dormancy vary considerably among egg masses.