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食虫

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Any of numerous small, rounded, usually brightly colored beetles of the family Coccinellidae, often reddish with black spots and feeding primarily on insect pests, such as scale insects and aphids.

瓢虫任一种小而圆的通常具有鲜艳色彩的瓢虫科的甲虫,体常呈红色并带有黑色斑点,主要以介壳虫和蚜虫等害虫为食

Low community variability was also observed in the late season for rotifers when fish were excluded and, as a result, they were exposed to high invertebrate predation from cyclopoid copepods.

后期的季节中轮虫的低群体多变性也被观察当鱼类被排除在外,结果,它们被暴露于来自桡足类高无脊椎动物掠食行为

The expression of BjCHI1 was highly inducible by methyl jasmonate treatment, wounding, caterpillar feeding, and pathogenic fugal infection. These observations suggest that the promoter of BjCHI1 gene might contain specific cis-acting elements for stress responses.

BjCHI1基因受伤害、茉莉酸甲酯、虫食、真菌侵染等的强烈诱导表达,这暗示BjCHI1启动子可能含有相应的诱导元件。

The bacterivorous nematode were the dominant trophic group, and Mersorhabitis, Heterodera and Rhabditis were the dominant fauna .

食细菌线虫为优势营养类群,Mersorhabitis、Heterodera和Rhabditis为优势属。

Any of various small, principally nocturnal mammals of the order Insectivora, characteristically ''.

食'。''虫目动物任一种小型的,主要是夜间活动的''。

A review of larvivorous fish and the present status of the use of fish in mosquito control in Mainland China are thus made for ready reference for the workers in mosquito control in Taiwan .

本文综述食坎鱼之生态与应用朴病媒害虫之管制,及在中国大陆试用之情形,以做为台湾坎虫防治工作者之参考。

The results showed that no obvious contact toxicities against the 3rd instars larvae of Mythimna separata Walker were observed in all treatment, and only the extract of Euonymus japonicus exhibited notable stomach toxicity.

采用微量点滴法和载毒叶片饲喂法测定30种药用植物乙醇提取物对粘虫3龄幼虫的触杀、胃毒以及拒食活性,结果表明供试样品在50 mg﹒mL~(-1)浓度下,冬青卫矛Euonymus japonicus Thunb。

In the practice it plays an important part in insect surveys, the choice of grain method, the improvement of grain storage level, the extension of storage time and the delay of grain quality deterioration. 1 Research on stored product insects in large warehouse 1.1 Community composition and structure analysis of stored product insects in large warehouse By means of GJ89 type probe trap investigation of stored grain insects and analysis of community composition and structure of large warehouse were carried out in Chongqing Beibei State Grain Reserve Depot. The results showed that there were main Lipocelis botrychophilus、 Cryptolestes ferrugineus、 Tyrophagus putrescentiae and Sitophilus zeamais etc in large warehouse

高大平房仓储粮昆虫生态学研究 1.1 高大平房仓散装储粮昆虫群落组成及结构分析使用GJ89型粮虫陷阱检测器对中央储备粮重庆北碚直属库高大平房仓储粮昆虫进行系统调查,并对其群落组成及结构进行了分析,结果表明高大平房仓储粮昆虫主要有书虱Lipocelis botrychophilus、锈赤扁谷盗Cryptolestes ferrugineus、腐食酪螨Tyrophagus putrescentiae和玉米象Sitophilus zeamais等4类,其中书虱为绝对优势种群;在粮堆垂直方向0~50cm 4类昆虫发生最多,100~150cm发生最少;4类昆虫在粮面0~50cm丰富度、优势度、多样性及均匀度4项指标均高于50~100cm和100~150cm,水平方向6个区域各项指标差异不大。

In a report on large invertebrates species present in lentic habitat in He Huan Mountain, Lin (1999) pointed out that the nymphs of A. petalura taiyal Asahina in He Huan Mountain area fed mainly on caddisflies and midges. High water quality was not obligatory to their living.

此外,林(1999)记录数种合欢山地区高山湖沼中的大型无脊椎动物,文中指出合欢山地区泰雅晏蜓的稚虫对水质要求不高,主要以捕食石蛾、摇蚊等小动物为食。

The larva of various beetles of the genus Tenebrio that infest flour and other grain products and often raised for bird feed .

大黄粉虫幼体一种步行的甲壳幼虫,寄生于面粉和其他谷类产品中,常被作为鸟食而饲养

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

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