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Air-breathing arthropods characterized by simple eyes and four pairs of legs.

呼吸空气的节肢动物,特征是单眼并有四对腿。

Any of numerous velvety-skinned wormlike carnivorous animals common in tropical forests having characteristics of both arthropods and annelid worms.

许多皮肤柔软蠕虫样食肉动物,常见于热带森林,有节肢动物和环节动物的特征。

The main factors and temporal patterns which influenced arthropod community in the course of time change divided obviously.

在时间变化过程中,影响节肢动物群落的主导因素和时间格局分化明显,将间作苜蓿棉田节肢动物群落在时间动态中的变化分为5个阶段,并结合气候、物候变化,分析了各阶段内主要害虫和天敌的发生特点。

Laboratory experiments were carried out to study the survival and development of the Harmonia axyridis feeding on Chaito phorus popleti on high insect-resisitance hybrid poplar 741(Pb29) and medium insect-resisitance hybrid poplar 741(Pbl7).The API 741 poplar was used as control.The mortality and development during immature period,adult,baby mass.eclosion and sex ratio of H. axyridis were measured.The results showed that:to contrast The API 741, Chaito phorus popleti on Pbl7 and Pb29 has no significantly impacts on eclosion,pupation, ecdysis,mortality of immature period and pupa stage;Although every development stage of ladybeetles were not affected to ,the pupal duration of ladybeetles was lowered than the control;The body mass,eclosion and sex ratio have no significant difference.

通过利用节肢动物群落及各个亚群落的物种丰富度、个体数、均匀度和优势集中性对多样性指数进行通径分析,表明了高抗Pb29和CK节肢动物群落及各个亚群落多样性指数与均匀度和优势集中性的相关系数最高,与其物种个体数关系最为不密切:对各组分进行通径分析均表明的多样性提高是建立在降低优势集中性和增加均匀度指数的基础上的,而且以优势集中性的直接作用效果较为显著。

The journal covers abstracts of the world's literature on insects and other arthropods which transmit diseases or are otherwise injurious to man and to animals of significance to man, with subject on arthopods which are disease vendors, haematophagous, ectoparasitic, agents of myiasis, allergenic, associated with carrion or dung, venomous or toxic, or otherwise of public health importance, including physiology, taxonomy, ecology, genetics, molecular biology, immunology, disease transmission pest management, pesticides, entomopathogens, parasites and predators.

杂志刊载世界各地传播疾病或对于人类重要的其他对人类和动物有害的疾病的昆虫和节肢动物方面文献的摘要,主题涉及传播疾病的,吸血的,外寄生的,蝇蛆病的媒介,引起过敏的,以及腐肉,粪便,有毒的节肢动物,或其他的与公共卫生有重要关系的方面内容,包括生理学,分类学,生态学,遗传学,分子生物学,免疫学,疾病传播昆虫的管理,杀虫剂,昆虫病原微生物,寄生虫和食肉动物。

Collembola, Protura and Diplura are not only important groups of the soil animal biodiversity, but also one of the key groups in studying the evolution arthropod, because their phylogenetic position are critical to the understanding of the evloution of insect orders.

跳虫、原尾虫和双尾虫不仅是土壤动物多样性研究的重要类群,又是节肢动物低等类群向陆生有翅昆虫演化的中间环节,是节肢动物进化研究中的关键类群之一。

An application of the test to the comparisons of the eleven sequenced arthropod mtDNAs revealed that most of the observed evolutionary models were homogeneous between the two mosquitoes but not between Daphnia pulex or Artemia Franciscan and the other arthropod, probably due to shifts to a high AT content.

在真实数据中,用11种节肢动物线粒体DNA的比较中发现,水蚤或卤虫与其他9种节肢动物以高百分比违背了同质性进化模型假设,显然是由于AT含量高而引起的,且在两种蚊子的线粒体DNA比较中发现,其满足同质性假设仅有7.69%。

An arthropod of the order Xiphosura,which includes the horseshoe crab and many extinct forms .

剑尾目动物剑尾目中的一种节肢动物,包括鲎及许多已灭绝的节肢动物

An arthropod of the order Xiphosura, which includes the horseshoe crab and many extinct forms.

剑 尾目动物剑尾目中的一种节肢动物,包括鲎及许多已灭绝的节肢动物

The evenness index are highest, and the predominant index is lowest. The overgrazed scrub and grass clump has poorest vegetatio n

扰的明油子灌草丛植物种类和节肢动物种类比较丰富,但节肢动物群落优势度最高而均匀度最低;经受或存在放牧干扰的明

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