Their high reproductive rate helps the nunas avoid extinction.
高繁殖率有助于努纳免遭灭绝。
Urbanization in Spain is distinctly correlated with a fall in reproductive rate.
西班牙都市化进程的加快很明显和该国的出生率下降有关。
Objective To compare the effects of colony oviposition and single tube oviposition for improving the reproductive rate of Anopheles anthropophagus .
目的比较群体产卵法与单管产卵法对提高嗜人按蚊繁殖率的效果。
Although the birds aren't listed as endangered, threats to their populations can pose serious risks, because the species has a long life span and a low reproductive rate.
尽管目前棕颈鹭没有被列入濒危名单，但由于寿命较长，繁殖率较低，它们的种群数量亦面临着严重的威胁。
Its net reproductive rate, the intrinsic rate of increase and the increment rate per unit were high, but its generation span and the time of double population size were low.
种群的净增殖率、内禀增长率及周限增长率较高，而种群的世代周期及加倍时间偏低；
Both temperature and sibling species affected markedly the net reproductive rate and intrinsic rate of population growth, but their interactions did not appear to be significant.
温度和姐妹种对轮虫的净生殖率和种群内禀增长率均有极显著影响，但两者的交互作用对其无显著性影响。
Under the conditions of less rainy days during the blooming period, the temperature is the main factor influencing the reproductive rate, then is the duration of day and the velocity of wind.
在阴雨较少的情况下花期温度是影响繁殖率高低的主导因素，其次为日照时数和平均风速。
Mantas, with their slow reproductive rate, are vulnerable to overfishing, so a robust tourist trade could give local communities an economic incentive to conserve the fish rather than kill them.
蝠鲼繁殖率缓慢，很容易受到过度捕捞，所以强大的旅游业可以给当地社区的经济补助，以保护鱼类，而不是杀死它们。
The rate of admission to hospital is four times higher than in the general population, say the authors, Dr Denise Jamieson from the CDC's division of reproductive health in Atlanta and colleagues.
该报告的作者为美国亚特兰大疾病防控中心生殖健康所的丹尼斯·贾米森（Denise Jamieson）博士及其同事。 他们表示，孕妇的入院率是普通人的4倍。
In other words, the fertility rate is falling because more women are postponing marriage to nearer the end of their reproductive lives.
也就是说，生育率的下降是因为更多的妇女将婚姻推迟至近乎他们生命中生育阶段的末尾。
The abortion rate in America is at its lowest level for 30 years, according to a new study by the Guttmacher Institute, a reproductive-health research group.
生殖健康研究所古特马赫新出的一份研究显示，如今美国的人工流产率已经降到了其30年来的最低。
According to relevant statistics, the number of the dispute is at the rate of 30% every year, rapid spread a serious threat to human reproductive health.
据相关资料统计，非淋的发病人数正以每年30%的速度快速漫延，严重威胁着人类生殖健康。
The photosynthetic rate of tomato and cucumber grown in two composted substrates was higher than that of control in nutrition and reproductive stage.
同时两种秸秆腐熟基质在营养生长期和生殖生长期的光合速率比对照高。
However, the increasing rate of the culm biomass in reproductive period was 1.13 times of that in vegetative period.
而生殖生长期茎秆生物量增长速率是营养生长期的1.13倍。
One of the reasons proposed for this low rate is that gynecologists are usually not engaged in assisted reproductive technology.
提出的原因之一是低利用率，主要是由于妇科医生通常不从事辅助生殖技术。
The photosynthetic rate of wild soybean was higher than that of the cultivated at vegetative growing stage, and lower at reproductive stage.
结果表明，野生大豆营养生长期光合速率高于栽培大豆，生殖生长期则小于栽培大豆。
Scientific and effective measures should be taken to reduce induced abortion rate, and improve maternal reproductive health, especially in the women aged 20~30.
应以20~30岁妇女为重点对象开展健康教育，采取科学有效地干预措施降低人工流产率，提高妇女生殖健康水平。
The infection rate and risk factors of CTRTI among 664 married women at reproductive age in rural areas in Chengjiang county, Yunnan province were investigated.
对云南省澄江县664名农村已婚育龄妇女生殖道沙眼衣原体感染情况及其危险因素进行了调查分析。
The wild fish captured in spring can spawn in autumn by use of reproductive control method. The viable egg rate is 23.4%.
借助生殖调控措施，春、夏季获取的野生鱼秋季就可产卵，好卵占23·4%。
Results reproductive tract infections detection rate of 40.94%, female reproductive health is not optimistic.
结果生殖道感染检出率为40.94%，女性生殖健康不容乐观。
The average life and spawning rate are different in female individuals with different reproductive modes.
不同生殖方式的雌性个体平均寿命及产卵率均有所差异。
If the tumor, lower urinary tract, reproductive system and these structures widely block resection, can improve the curative rate.
若将肿瘤、下尿路、生殖系统以及上述结构作广泛整块切除，可提高治愈率。
There was significant difference in detected rate of all anti-reproductive antibodies between 2 groups.
流产组的各项抗生殖免疫抗体检出率均明显高于对照组。
Results The rate of discovered diseases in damaged reproductive health population was 67.6% (2754/40760).
结果发现危害育龄妇女生殖健康的多种疾病，发病率为67.6%（2754/4076）。
Results The rate of discovered diseases in damaged reproductive health population was 67.6% (2754/40760).
结果发现危害育龄妇女生殖健康的多种疾病，发病率为67.6%（2754/4076）。
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