| 词汇 | example_english_pupal-stage |
| 释义 | pupal stagecollocation in Englishmeanings of pupaland stageThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with stage. pupal adjective uk /ˈpjuː.pəl/ us /ˈpjuː.pəl/ relating to a pupa (= an insect in the stage of development when it is inside a hard covering, before it becomes ... See more at pupal stage noun[C] uk /steɪdʒ/ us /steɪdʒ/ a part of an activity or a period ... See more at stage Examples of pupal stageThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Egg survival averaged 99.5%, and survival to adulthood from the pupalstage was 100% regardless of host plant (excluding chilli) (fig. 3). The deposition of pigments in the eye occurs during the mid-late pupalstage. Rainfall in the current month may also encourage disease at the pupalstage and cause mortality if heavy during the vulnerable eclosion period. Table 1 shows the mean time of development for each larval instar and pupalstage, calculated for the 16 complete cohorts among the 58 initiated. A higher proportion of parasitoids in host pupae developed to the pupalstage at the time of collection. This resulted in an overall reduction in the mean development time to the pupalstage of approximately 7 days. In all three winter seasons, under the semi-natural conditions, the highest level of mortality was observed at the pupalstage. This prediction was confirmed by the higher mortality in the pupalstage. Individuals were separated into males and females at the pupalstage. In insects under observation the pupalstage lasted 17-19 days. Therefore, for this experiment, development was considered complete when the larvae reached the pupalstage. The egg-stage lasted 6-8 days, the four larval stages 17-21 days, and the pupalstage 7-8 days. Zareh et al. (1980) found a reduction in female fecundity in the lines exposed to parasitoids, possibly a direct effect of the shorter pupalstage. Fly lines exposed to parasitism evolved heavier puparia and a shorter pupalstage duration. Separation at the pupalstage a few days before emergence would be preferable as it would leave more time to transport irradiated male pupae to release sites. After completing the larval and pupalstage, it is possible that new adults remain within the same area, maintaining high levels of herbivory in high density patches. Newly emerged larvae that were placed on plastic surfaces did not form a cocoon and although they would enter a ' prepupal ' stage, they eventually died before reaching the pupalstage. The pupalstage lasted approximately ten days. Hence, the expression pattern of the 412 retrotransposon during development depended on the population, but was mostly observed at pupalstage and in young adults. Larval development duration was highly variable, spreading between 9 and 13 days to pupation, but eclosion from the pupalstage was spread over just 2 days. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Want to learn more? Go to the definition of pupal Go to the definition of stage See other collocations with stage |
反思网英语在线翻译词典收录了377474条英语词汇在线翻译词条，基本涵盖了全部常用英语词汇的中英文双语翻译及用法，是英语学习的有利工具。