| 词汇 | example_english_fecundity |
| 释义 | Examples of fecundityThese 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. In summary, our results suggest that exposure to combinations of environmental stresses may increase the expression of additive genetic variability for fecundity. Daily fecundity (number of nymphs produced per adult per day) varied with time for both aphid species and in each experiment (fig. 2). Those populations sourced from lodgepole pine did not differ in fecundity according to which larval food had been eaten. We also verify the existence of a positive relationship between size and fecundity for the 3 helminth species in our study. Individuals that did not feed (as defined above) were excluded from the analysis of fecundity and bloodmeal size. This suggests that fecundity among non-users may vary widely and high-fecund women conceive very quickly, leaving the less-fecund women in the cohort. We expect that withinhost parasite density should not affect parasite fecundity in insular populations, contrary to mainland populations. Neither inter-specific interactions nor host body condition appeared to influence worm fecundity. Circulating anodic antigen levels in two areas endemic for schistosomiasis mansoni indicate differences in worm fecundity. Another possible measure of dispersal is a measure of seed germination and survival of offspring to adulthood, as well as adult fecundity. Stress in the parental generation seems to lead to reduced fecundity in the offspring generation. 21 increased fecundity after a cold exposure would result in an increased number of offspring in the next generation, independent of recovery time. Several life-history traits were monitored, including survival, fecundity and growth, over about 6 months (29 weeks). For the individual fecundity is certainly not declining to a level appropriate to the present and prospective survival rate. Is survivorship a better fitness surrogate than fecundity? In most cases, the p eaks of fecundity corresponded to the period of high density of juveniles. More generally, the discrete model would lead to correct fitness estimates provided that male fertility and female fecundity are proportional to each other. Again, it probably serves to increase the individual fecundity of the parthenogenetic metacercariae. Demographically, of course, there is plenty of evidence of a decline in human fecundity in the sense of reproductive performance. A constant prevalence rate in the face of reduced fecundity has caused some to argue that an evolutionary advantage exists in unaffected relatives. However, the fecundity of species cited in these studies increased after parasitoids were reared for several generations on the new hosts. Changes in rates of fecundity were investigated using regression analysis. We conducted a laboratory experiment to evaluate the role of parasite genetics and infection genetic diversity on the fecundity of mosquitoes carrying malaria parasites. Studies of invertebrate-parasite interactions frequently report that infection reduces host fecundity. Thus, even if fecundity reductions offset the mortality costs of infection, they do not eliminate them. 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. |
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。