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Community structure and its dynamics of predatory arthropod in jujube orchards intercropped with different herbage species
间种牧草枣林捕食性节肢动物群落结构的动态

SHI Guanglu,WANG Younian,MIAO Zhenwang,LI Dengke,ZHANG Tieqiang,YU Tongquan,JI Qianlong,DONG Hui,
师光禄
,王有年,苗振旺,李登科,张铁强,于同泉,姬谦龙,董会

应用生态学报 , 2006,
Abstract: By using community structural characteristic indices and principal component analysis, this paper studied the community structure and its dynamics of predatory arthropod in the jujube orchards intercropped with Astrugalus complanatus, Trifolium repen, Lotus comiculotus, and Medicago sativa. The results showed that in all test jujube orchards, spider and predatory insects were the predominant components of the predatory arthropod community, and their relative abundances were 48.3%~52.7% and 38.8%~44.4%, respectively. There were significant differences (P<0.05) in the mean density, diversity, and evenness of the most common predatory arthropod groups in the jujube orchards intercropped with different herbage species, with the sequence of intercropped with Lotus comiculotus> Medicago sativa>Astrugalus complanatu> Trifolium repens, but for dominant concentration index, the sequence was intercropped with Trifolium repens>Astrugalus complanatu>Medicago sativa>Lotus comiculotus. The average density of predatory spiders was significant higher (P<0.05) than that of predatory insects in all test jujube orchards. The individuals of Coccinellidae, Pentatomidae, inoccllidae, Chrysopidae, Thomisidae, Araneidae and Phytoseiidae played the dominant role in the community.
Community structure and its dynamics of predatory arthropod in different tobacco varieties fields
不同烟草品种烟田捕食性节肢动物群落的结构和动态研究

WU Houzhang~,ZOU Yunding~,CHENG Xianian~,
巫厚长

应用生态学报 , 2005,
Abstract: With principal component analysis and using community structural characteristic indices, this paper studied the community structure and its dynamics of predatory arthropod in fields planted with tobacco varieties Nc89, Nc82 and K326. The results showed that in all test fields, spiders and predatory insects were the predominant components of the predatory arthropod community, and their relative abundances were 83.25%-86.87% and 13.13%-16.38%, respectively. There was a significant difference in the mean density (individuals per 8 plants) of the most common predatory arthropod groups between different tobacco varieties fields, which was the highest in K326 field, followed by Nc82, and Nc89 field. The individuals of both Linyphiidae and Coccinellidae played the dominant role in the community. There was a significant difference in the richness of predatory arthropod community between Nc89 and Nc82 fields, but the differences of other structural characteristic indices were not significant. The temporal dynamics of the richness and dominancy in all test fields had a trend of low-high-low, and those of the diversity and evenness index were high-low-high.
性诱剂诱杀及地面处理防治核桃举肢蛾效果  [PDF]
王相宏,张坤朋,王景顺,杨建华
河南农业科学 , 2015,
Abstract: 核桃举肢蛾是核桃上的重要害虫,严重影响核桃的产量和质量,为了有效控制其危害,研究了性诱剂诱杀及地面处理防治核桃举肢蛾的效果。结果表明,采用性诱剂诱杀、冬季树冠下土壤深翻10~20cm、成虫羽化出土前地面喷施40%的辛硫磷乳油200倍液或48%的毒死蜱乳油200倍液防治核桃举肢蛾,防治效果分别为12.5%~22.9%、43.8%~62.5%、36.1%~38.9%,3种单一防治措施均不能有效控制核桃举肢蛾的发生危害;采用冬季树冠下土壤深翻20cm+成虫出土前地面喷施40%的辛硫磷乳油200倍液或48%的毒死蜱乳油200倍液综合措施防治,防治效果明显,防效分别为76.1%~79.2%、75.2%~77.2%,可以较好地控制核桃举肢蛾的发生危害。
On the predatory habits of Lions and Hyaenas  [cached]
F. C. Eloff
Koedoe : African Protected Area Conservation and Science , 1964, DOI: 10.4102/koedoe.v7i1.805
Abstract: On the predatory habits of Lions and Hyaenas
核桃举肢蛾性信息素结合蛋白2的分子克隆和免疫荧光定位  [PDF]
李文海,黄兴龙,王敦,冯纪年
昆虫学报 , 2015,
Abstract: 【目的】明确核桃举肢蛾AtrijuglanshetaoheiYang性信息素结合蛋白2(AhetPBP2)在核桃举肢蛾触角中的分布。【方法】本研究提取羽化后3-4d的核桃举肢蛾成虫触角总RNA并反转录合成cDNA,设计简并引物进行RT-PCR获得cDNA片段,然后利用RACE技术获得AhetPBP2全长cDNA序列。将去除信号肽序列的AhetPBP2进行原核表达,重组蛋白经镍柱纯化并免疫新西兰大白兔制备多克隆抗体。制备的多克隆抗体作为一抗对核桃举肢蛾触角进行免疫组化分析。【结果】AhetPBP2基因cDNA序列全长923bp,开放阅读框504bp,共编码167个氨基酸,分子量为19.26kD,等电点为5.47。1mmol/LIPTG诱导10h获得可溶性重组蛋白,Westernblot结果表明重组蛋白诱导表达成功,ELISA检测显示抗体效价为1:1024000。免疫荧光定位结果显示核桃举肢蛾成虫触角部分感器被AhetPBP2抗体标记。【结论】核桃举肢蛾成虫触角的部分感器中可能存在AhetPBP2,推测该部分感器具有感受性信息素的功能。
语篇理解中动允性信息的提取  [PDF]
鲁忠义,陈笕桥,邵一杰
心理学报 , 2009,
Abstract: ?通过三个实验考察了读者在语篇理解中对动允性(affordance)信息的提取状况,以及动允性在阅读理解中的意义。实验一的结果表明,被试在阅读理解中,会自发地提取语篇中的动允性信息,并围绕着动允性信息组织其他信息;在ief中的解析过程中,动允性信息对其他信息有组织作用。实验二的结果表明,被试在阅读理解中能够直接提取动允性信息。实验三的结果表明,被试在阅读理解中存在两条提取动允性信息的通路,一条是直接提取动允性信息,另一条是先提取属性信息再推导出动允性信息,选择哪条通路取决于被试是否得到了属性信息。三个实验的结果表明,阅读理解中的动允性与知觉过程中的动允性存在着相当大的相似性。
带暗支撑双肢短肢剪力墙抗震性能试验研究  [PDF]
曹万林,张建伟,常卫华,黄选明,赵长军
地震工程与工程振动 , 2006,
Abstract: 钢筋混凝土短肢剪力墙结构是一种新型的中高层住宅结构体系,已有较多的工程应用,但是短肢剪力墙的抗震性能较差,如何提高短肢剪力墙的抗震性能是目前工程界十分关注的问题。本文提出了带暗支撑短肢剪力墙,并以典型的双肢短肢剪力墙为例,选择了4个1/3缩尺的双肢短肢剪力墙试验模型,2个为普通双肢短肢剪力墙模型,2个为带暗支撑双肢剪力墙模型,进行了对比性的抗震性能试验研究,较系统地分析了带暗支撑双肢短肢剪力墙的承载力、刚度、延性、耗能能力及破坏特征,建立了承载力计算模型,计算结果与实测结果符合较好。试验表明,带暗支撑双肢
Arthropod origins  [PDF]
Bergstr?m J,Xian-Guang Hou
Bulletin of Geosciences , 2003, DOI: 10.3140/bull.geosci.2003.04.323
Abstract: Reconsideration of the position of trilobite-like arthropods leads to an idea of the last shared ancestor of known (eu)arthropods. The ancestry and morphological evolution is traced back from this form to a hypothetical ciliated and pseudosegmented slug-like ancestor. Evolution logically passed through a lobopodian stage. Extant onychophorans, Cambrian xenusians, and perhaps anomalocaridids with their kin (the Dinocaridida) may represent probable offshoots on the way. As such, these groups are highly derived and not ancestral to the arthropods. Results of molecular studies indicate a relationship to moulting worms, which at first could seem to be in conflict with what was just said. However, if this is correct, the arthropod and moulting worm lineages must have diverged when some 'coelomate' features such as specific vascular and neural systems were still present. The moulting worms would therefore have lost such characters, either only once or several times.
Affordance Information Retrieval in Text Comprehension
语篇理解中动允性信息的提取

LU Zhong-Yi,CHEN Jian-Qiao,SHAO Yi-Jie,
鲁忠义
,陈笕桥,邵一杰

心理学报 , 2009,
Abstract: 通过三个实验考察了读者在语篇理解中对动允性(affordance)信息的提取状况, 以及动允性在阅读理解中的意义。实验一的结果表明, 被试在阅读理解中, 会自发地提取语篇中的动允性信息, 并围绕着动允性信息组织其他信息; 在IEF中的解析过程中, 动允性信息对其他信息有组织作用。实验二的结果表明, 被试在阅读理解中能够直接提取动允性信息。实验三的结果表明, 被试在阅读理解中存在两条提取动允性信息的通路, 一条是直接提取动允性信息, 另一条是先提取属性信息再推导出动允性信息, 选择哪条通路取决于被试是否得到了属性信息。三个实验的结果表明, 阅读理解中的动允性与知觉过程中的动允性存在着相当大的相似性。
u型钢可缩性支架缩动后的内力计算  [PDF]
尤春安
岩石工程学报 , 2000,
Abstract: 缩动是u型钢可缩性支架的重要特性,按支架缩动后进行强度计算是必要的。介绍了u型钢可缩性支架缩动后的内力计算方法。算例表明,支架缩动所产生的内力在支架的内力计算中不但是不可忽视的,而且往往占有重要的地位。
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