二个种群的大型溞具有明显的昼夜摄食节律,早晨和傍晚为两个摄食高峰期,盐度对摄食节律无影响。
The Daphnia magna of the two population has obvious around-the clock ingestion rhythm, the morning and the evening are two peaks of ingestion. Salinity has no influence on the ingestion rhythm.
灵敏度分析显示,温度是影响褐飞虱种群数量动态的最关键因素,其次为初始迁入虫量、天敌和水稻生育期。
The sensitivity analysis showed that the temperature was the most important factor, the other key factors included initial population size, natural enemy and rice development stage.
两种群的生命阶段分为未成熟期和成熟期,只有在成熟期时,种群具有竞争力。
The life stages of the tow-species are immature and mature, only in the mature, the species have competition.
结果表明,卵期、1龄幼虫期、蛹期的死亡率较大,分别为13 5 %、18 2 %和19 0 % ,是影响种群数量增长的主要因子。
It was showed that high mortalities in the stages of egg(13 5%), 1st instar larvae(18 2%)and pupae(19 0%) were the main factors influencing the growth of the experimental population.
各生育期的星星草种群生殖分蘖株高与花序生物量呈显著正相关,而与生殖分配呈显著负相关。
At each growth stage, tiller height had a significant positive correlation with spike biomass, but a negative correlation with reproductive allocation.
孵化高峰期前后为种群的扩散时期。
The population diffusing periods are before and after the peak of the hatching period.
这两个种群若虫发育历期在其各自的选择寄主与TN1之间没有显著差异,且明显短于其在RHT上的发育历期。
The nymph developmental duration of these two colonies on the corresponding hosts was not different from that on TN1, but significantly shorter than that on RHT.
灵敏度分析显示,温度是影响褐飞虱种群数量动态的最关键因素,其次为初始迁入虫量、天敌和水稻生育期。
The sensitivity analysis showed that the temperature was the most important factor, the other key factors included initial population size, natural enemy and rice development stage. Post variation...
研究了不同温度和相对湿度对印度谷螟不同阶段的生长发育历期和存活率的影响,组建了印度谷螟在不同温度下的试验种群生命表。
The effect of combination of different temperature and different relative humidity on growth period and livability of different stages of Indian meal moth were studied.
建议抓住优势种群发生高峰期,制定白蜡虫天敌寄生蜂的有效控制措施。
A suggestion was given to designate the control strategy about the parasite wasps on the white wax insect.
建议抓住优势种群发生高峰期,制定白蜡虫天敌寄生蜂的有效控制措施。
A suggestion was given to designate the control strategy about the parasite wasps on the white wax insect.
应用推荐