贵州荔波洞穴蜘蛛初步研究

对荔波的典型喀斯特洞穴的洞穴蜘蛛进行调查研究。2004年6~7月野外调查,对荔波县的玉屏镇、甲良镇、永康、翁昂等地的11个洞穴的进行了调查和标本的采集,对部分环境因子在夏、冬两季的变化分别进行了测量和记录.计算出不同洞穴内蜘蛛的多样性、优势度、相似性和丰富度指数,其中甲良洞物种丰富度指数最高(3.377)、多样性指数最高(1.991)、最大多样性指数最高(2.773),水拔洞均匀度指数最高(0.981)、优势度指数最高(0.348)、其余指数最低。此外,还研究了各光带之间的相似性指数、洞穴面积与蜘蛛种数的关系、真洞穴蜘蛛和非真洞穴蜘蛛步足和体长测量数据的比较等。     

The function of spider egg sacs in relation to parasitoids and predators,with special reference to the Australian fauna

The function of spider egg sacs is analysed as structures to reduce or prevent mortality by parasitoids and predators. The host relationships of the groups concerned are documented, with special reference to the Australian fauna. Many new records are presented and the biology of each group is discussed. Information presented supports the hypothesis that egg sacs are an effective barrier against scavenging predators (generalists), while coevolution between spiders and their specialized (highly adapted) parasitoids and predators is responsible for the specificity displayed by the latter two groups and the structural diversity evident of egg sacs.     

The evolution of prey‐wrapping behaviour in spiders

We traced the evolution of silk use by spiders in attacks on prey by combining previous publications with new observations of 31 species in 16 families. Two new prey‐wrapping techniques are described. One, in which the spider holds a tense line (often covered with viscid silk) with both legs IV and applies it to the prey with a simultaneous movement of both legs, may be a synapomorphy linking Theridiidae, Nesticidae, and Synotaxidae. The other, in which the spider stands over the prey and turns in place, is apparently very ancient; it occurs in Theraphosidae, Tengellidae, and Agelenidae. The use of legs IV to wrap prey is described for the first time in Filistatidae and Scytodidae. Using a recent phylogeny of spiders, we propose that prey wrapping with legs IV has evolved convergently at least four times. We propose that prey wrapping originally evolved from egg‐sac construction behaviour.     

基于BHO技术的恶意网页行为检测系统的应用研究

在恶意网页检测技术中引入 BHO 技术,构建一个恶意网页行为检测系统. 实际测试结果表明,基于 BHO 技术的恶意网页行为检测系统具有较高的效率和准确率.     

稻田4种优势种蜘蛛POD同工酶的比较研究

应用聚丙烯酰胺凝胶垂直板型电泳技术,对南方水稻田中4种优势种蜘蛛-拟环纹豹蛛(Pardosapseudoannulata)、沟渠豹蛛(Pardosa laura)、武昌獾蛛(Trochosa wuchangensis)和白跗狡蛛(Dolomedes pallitarsis)的过氧化物酶(POD)同工酶进行了比较研究.结果表明,4种蜘蛛的POD同工酶谱带清晰,不同种间差异较明显,同属于狼蛛科内3种蜘蛛的POD酶谱相似性强,与白跗狡蛛谱带差异显著,同时发现拟环纹豹蛛POD酶对农药胁迫有明显的适应性变化.     

河北省蜘蛛新记录及其地理分布

首次报道１１种河北省蜘蛛新记录：（１）镜斑后鳞蛛（Ｍｅｔａｌｅｕｃａｕｇｅｙｕｎｏｈａｍｅｎｓｉｓ）,（２）松林园蛛（Ａｒａｎｅｕｓｐｉｎｅｕｓ）,（３）板隅希蛛（Ａｃｈａｅａｒａｎｅａｔａｂｕｌａｔａ）,（４）波斑盖蛛（Ｎｅｒｉｅｎｅｃｌａｔｈｒａｔａ）,（５）拟白斑猎蛛（Ｅｖａｒｃｈａｐａｒａｌｂａｒｉａ）,（６）莱塞舞蛛（Ａｌｏｐｅｃｏｓａｌｅｓｅｒｔｉａｎａ）,（７）伪楔舞蛛（Ａｌｏｐｅｃｏｓａｐｓｅｕｄｏｃｕｎｅａ ｔａ）,（８）埃氏花蟹蛛（Ｘｙｓｔｉｃｕｓｅｍｅｒｔｏｎｉ）,（９）钝叉花蟹蛛（Ｘｙｓｔｉｃｕｓｏｂｔｕｓｆｕｒｃｕｓ）,（１０）乳花蟹蛛（Ｘｙｓｔｉｃｕｓｌａｔｉｃｅｐｓ）,（１１）甘肃平腹蛛（Ｇｎａｐｈｏｓａｋａｎｓｕｅｎｓｉｓ）,并记述了它们的地理分布。     

RAPD技术在蜘蛛遗传多样性研究中的方法探讨

进行了RAPD技术在蜘蛛遗传多样性研究中的方法探讨.利用蜘蛛的附肢作为其基因组DNA抽提的材料,且该改进的方法所抽提的蜘蛛基因组DNA的产量与纯度足以满足RAPD分析的要求;通过优化RAPD PCR反应条件,可以获得清晰度高,重复性好的RAPD图谱以用于蜘蛛(如拟水狼蛛Piratasubpraticus)、拟环玟豹蛛(Par dosapseudoannulata)、武昌獾蛛Trochosawuchangensis等)的遗传多样性研究;在不投食饲养武昌獾蛛一个月以上的前提下,用随机引物S92(5′CAGCTCACGA3′)比较分析了武昌獾蛛的头胸部与其附肢各自的RAPD图谱的差异,差异不显著(P>0.05).结果表明:蜘蛛的附肢和头胸部均可作为其遗传多样性研究材料,但以前者为材料可以有效防止异源DNA的干扰.因而,其基因组DNA在作为蜘蛛遗传多样性的RAPD分析模板时要优于头胸部.     

Pseudonemesia tabiskey,a new species of Pseudonemesia Caporiacco 1955 and new ultramorphological data for the Microstigmatinae (Araneae: Microstigmatidae)

Pseudonemesia tabiskey sp. nov. is described from an Andean Forest in Trujillo, Venezuela. The new species is the third for the genus and differs from the other two species by the presence of one short and apically rounded modified seta on the retrolateral distal portion of the male tibia I and clavate setae on the dorsal and lateral sides of abdomen in both sexes. A new diagnosis is given to Pseudonemesia and new morphological data based on scanning electron microscopy for the Microstigmatinae are presented. The presence of posterior median spinnerets in Pseudonemesia is discussed.     

浙江省蜘蛛名录(续)

狼蛛科 Lycosidae Sundevall, 1833 豹蛛属 Pardosa Latreilles, 1804 拟环纹豹蛛 Pardosa pseudoannulata (Bosenberg et Strand, 1906 Tarentula pseudoanulata Bosenberg et Strand,1906:319-320, figs. 323, 326, 334, 338. Lycosa pseudoterricola Schenkel, 1938:199-201 fig, 66a. Lycosa pseudoannulata 宋大祥, 1978:1-2, fig 2. Lycosa cinnameovittata Schenkel, 1963 全省。安徽、台湾。K.J 星豹蛛 Pardosa astrigera Koch, 1878 Pardosa T-insignita Bosenberg et Strand, 1906: 324-325, figs.109, 334, 337 Pardosa astrigera Koch, 1878 全省。安徽、台湾。J     

Discussions on the age of the Daohugou fauna—evidence from invertebrates

Volcanic tuff deposits near Daohugou village, Ningcheng County of Inner Mongolia have yielded many wellpreserved fossils. Here we briefly introduce our recent findings of invertebrates from the Daohugou fauna: mainly insects, conchostracans, anostracans, and spiders. The age of the Daohugou fauna is considered to be Middle Jurassic on the basis of an analysis of various invertebrates especially insects and conchostracans, showing strong similarities to the Yanliao fauna of north China and the Karatau fauna of Kazakhstan.