排卵期与产卵期出现重叠。
有些海鸟产卵期推迟了，孵化率也变得更低。
Some have been laying their eggs later and experiencing fewer successful hatchings.
研究结果表明，其方法可以准确地预测越冬代玉米螟的产卵期。
The result of the study has shown that the method in this paper can forecast accurately the spawning time of corn borer of overwintering generations.
同时对两组间的卵重、卵形、产卵期进行了测定，无显著差异。
There was no significant difference on the egg weight, egg shape and egg laying period between the experimental groups and control groups.
测定分析鱼类生殖力、产卵期、繁殖群体的年龄结构及产卵类型。
The spawning times, absolute fecundities, age structures of breeding population, and spawning types of fish were also studied.
这项最新调查是由英国埃克塞特大学和国际野生生物保护学会(WCS)共同主持的，在2002年至2007年期间的三次棱皮龟产卵期内，他们统计了棱皮龟巢穴以及筑巢的雌性棱皮龟数量。
The survey, led by the University of Exeter with the Wildlife Conservation Society (WCS), counted nests and nesting females during three nesting seasons between 2002 and 2007.
这项最新调查是由英国埃克塞特大学和国际野生生物保护学会(WCS)共同主持的，在2002年至2007年期间的三次棱皮龟产卵期内，他们统计了棱皮龟巢穴以及筑巢的雌性棱皮龟数量。
The survey, led by the University of Exeter with the Wildlife Conservation Society (WCS), counted nests and nesting females during three nesting seasons between 2002 and 2007.
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