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本文报道了中国的附丝壳属Appendiculella二个新种:八角附丝壳AppendiculellailliciiB.Song和新木姜子附丝壳AppendiculellaneolitseaeB.Song。新种附有拉丁文、英文描述和显微结构图。模式标本保存于广东省微生物研究所标本室(HMIGD)。 相似文献
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报道了采自四川省凉山州会理县城区附近的蝶类资源.通过对近20年采集的500余具标本的整理,共记录有蝶类9科91种,分别隶属于凤蝶科 Papilionidae(15种)、弄蝶科Hesperiidae(4种)、粉蝶科Pieridae(16种)、眼蝶科Satyridae(11种)、蛱蝶科Nymphalidae(34种)、斑蝶科Danaidae(5种)、灰蝶科Lycaenidae(3种)、环蝶科 Amathusiidae(2种)、蚬蝶科Riodindae(1种).根据调查经过和相关资料,对会理的蝶类资源现状进行了简单的讨论和分析,并提出了相应的保护建议. 相似文献
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青海祁连地区不同生境类型蝶类多样性研究 总被引:43,自引:4,他引:43
于1997-1999年对青海祁连地区不同生境类型中蝴蝶多样性进行了研究。研究中依据海拔高度、气候、土壤和植被的不同将该地区的蝴蝶生境划分为5种类型:山缘农田、山地草原、森林草原、高寒灌丛草甸、裸岩。共收集蝴蝶4367只,隶属于6科35属53种,计算了5种生境类型中蝶类物种丰富度、相似性系数、多样性指数,其中,蝶类物种丰富度由小到大的顺序为:裸岩(6种)<山地草原(13种)<森林草原(14种)<高寒灌丛草甸(22种)<山缘农田(H′=2.7071)、高寒灌丛草甸(H′=2.7734);森林草原和山缘农田的相似性系数最高(0.3704),其次为山地草原和高寒灌丛草甸(0.2500,裸岩与其他生境类型的相似性系数最低。 相似文献
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基于线粒体ND1和16S rRNA基因序列探讨中国蝴蝶12科的系统发育关系(鳞翅目: 双孔次亚目: 蝶类) 总被引:2,自引:0,他引:2
对中国12科共32种代表蝶类的ND1基因和16S rRNA 基因进行了序列测定(包括新测30种ND1基因和9种16S rRNA基因)和比较分析, 同时采用邻接法、最大似然法和贝叶斯法构建了12科蝶类的系统发育树, 探讨了其高级分类群的系统发育关系。序列分析的结果显示: 经比对处理后的两个基因总长度为869 bp, 其中保守位点373个, 可变位点496个, 简约信息位点375个; A+T的平均含量为80.2%, 明显高于C+G的平均含量19.8%。分子系统树表明: 蛱蝶科不是单系群; 珍蝶类、斑蝶类和喙蝶类位于蛱蝶科内; 粉蝶科和凤蝶科具有共同祖先。据此建议: 绢蝶科应归入凤蝶科; 蚬蝶科归入灰蝶科; 珍蝶类、斑蝶类和喙蝶类作为蛱蝶科中的亚科, 眼蝶类从蛱蝶科中分离出来独立成科。另外, 环蝶类的系统分类地位还有待于进一步研究。 相似文献
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中国蝴蝶分类与鉴定》是周尧教授继《中国蝶类志》(1994)之后,由河南省科学技术出版社于1998年6月出版发行的又一部关于中国蝶类研究的专著。蝴蝶是一个同时具有观赏、经济、学术、美术、收藏等价值的昆虫类群,因而全世界的研究者和爱好者都很多,出版物的种... 相似文献
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报道2个新种:寄生在荩草Arthraxon hispidus(Thunb.)Makino上的荩草菌丝孢Mycovellosiella arthroaxonis,寄生在扁担杆属Grewia sp.植物上的扁担杆色链隔孢子Phaeoramularia grewiae和7个中国新记录种。文中为新种提供了拉丁文简介,英文描述和图。研究的标本保存在中国科学院微生物研究所菌物标本馆(HMAS)。 相似文献
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ALAN J. KOHN 《Zoological Journal of the Linnean Society》1964,45(304):151-167
Twenty-three species of Conus were described by authors other than Linnaeus between 1766 and 1786. Of these, 3 are Eocene species from England described by Solander in Brander (1766), and the remainder are Recent. Chemnitz (1777) described one valid species. Of the 10 species described by Born (1778), 7 are valid, 2 are junior synonyms of Linnaean species, and 1 is a nomen dubium. Solander in [Lightfoot] (1786) described 5 species, of which 3 are valid and 2 are junior synonyms of Linnaean species. Lightfoot (1786) described 4 species, of which 1 is valid and 3 are junior synonyms of Linnaean species.
Holotypes of 7 species and lectotypes of 3 species exist, and representatives of lecto-types of 10 species have been selected. All of these types are illustrated photographically.
Between 1758 and 1786, 60 species of Conus were described, of which 45 are now considered valid. Of these, 42 are Recent. 相似文献
Holotypes of 7 species and lectotypes of 3 species exist, and representatives of lecto-types of 10 species have been selected. All of these types are illustrated photographically.
Between 1758 and 1786, 60 species of Conus were described, of which 45 are now considered valid. Of these, 42 are Recent. 相似文献
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ALAN J. KOHN 《Zoological Journal of the Linnean Society》1986,86(1):1-41
During the second decade of the 19th century, eight authors described 24 recent and 26 fossil species of Conus , bringing to 486 the number of proposed species-group names in the genus through 1820. This study analyses these nominal species, as well as three described by Perry in 1810, and evaluates the status of each. Most of the European Tertiary species described by Brocchi in 1814 and some of those described by Borson and Schlotheim in 1820 are valid. Megerle von Mühlfeld in 1816 and Dillwyn in 1817 each described a valid recent species. All other Conus species names introduced during the period are synonyms of previously or contemporaneously described species or nomina dubia. Type specimens of 23 species, including one neotype, are known to exist today. At the present time 148 valid species of Conus are recognized from the species-group names introduced between 1758 and 1820. Of these, 131 are extant and 17 are known only as Tertiary fossils. In addition, six otherwise valid species, three recent and three fossil, were described but were given preoccupied names. 相似文献
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Statistical methods are described which can be used to compare treatments where the response is described by a nonlinear model. The nonlinear analysis of covariance is described for a one-way treatment structure and a two-way treatment structure. Methods for constructing confidence bands about a model and about the difference of two models are described. Examples involving the dynamics of silage fermentation are used to demonstrate the methods. 相似文献
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J. A. L. Cooke 《Journal of Zoology》1967,151(1):31-42
Two new species of Ricinulei belonging to the genus Cryptocellus are described from British Guiana. The habitat is described and figured and a method of keeping Rcinulei in captivity reported. Observations on feeding and mating are described and possible evolutionary implications of the mating behaviour are discussed 相似文献
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Revision of the larvae of Leptus Latreille (Acarina: Erythraeidae) of Europe and North America, with descriptions of post-larval instars 总被引:2,自引:0,他引:2
R. V. SOUTHCOTT 《Zoological Journal of the Linnean Society》1992,105(1):1-153
The larvae of Leptus Latreille, 1796 (Acarina: Erythraeidae) of Europe and North America are comprehensively revised. Of those described since 1900 a total of 34 species is considered recognizable and capable of being keyed; no species described before 1900 is considered recognizable. The nominal type of the genus, Acarus phalangii de Geer, 1778 is rejected as an illegitimate name. Eighteen European and 17 North American species are described and keyed, of which 17 are new to science. One new subspecies from North America, of a species previously known from Europe, is described and keyed. Standard metric data are given for each species or subspecies from available specimens (except two North American species, L. ariel Southcott and L. clarki Southcott, recently described elsewhere; for these last-named two additional metric data are given). Larvae have been recorded from April to September, with the greatest number found being for July and August.
Protonymphs are described for two North American species ( L. ghiradellae sp. nov. and L. welbourni sp. nov. ), and deutonymphs for two North American species ( L. calix sp. nov. and L. ghiradellae ). Keys are given to separate the reared protonymphs, and three described deutonymphs (the two preceding and the European L. galerucae Feider). Data on the duration of the protonymphal instar suggest that in North America and Europe there are two modes: one lasting 3–4 weeks, the other 5–7 months. Developmental abnormalities are recorded systematically. 相似文献
Protonymphs are described for two North American species ( L. ghiradellae sp. nov. and L. welbourni sp. nov. ), and deutonymphs for two North American species ( L. calix sp. nov. and L. ghiradellae ). Keys are given to separate the reared protonymphs, and three described deutonymphs (the two preceding and the European L. galerucae Feider). Data on the duration of the protonymphal instar suggest that in North America and Europe there are two modes: one lasting 3–4 weeks, the other 5–7 months. Developmental abnormalities are recorded systematically. 相似文献
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This paper describes the general concepts, meaning, and definitions of sustainability and proposes the use of soft methodologies, particularly fuzzy set theory, for its assessment. Criteria and indicators (C&I) are described as instruments to assess forest sustainability. Basic elements and concepts of fuzzy sets are described, including membership functions and their interpretations in the context of sustainable forest management. Moreover, fuzzy operators that can combine the operational concepts of sustainability, namely criteria and indicators are described. A simple illustrative example is described to demonstrate the application of these methodologies. 相似文献
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Four new species of corticioid fungi from Hawaii are described and illustrated. The new genus Hemmesomyces is described to accommodate the new species H. puauluensis. Radulomyces tantalusensis, Crustoderma fuscatum and Scopuloides magnacystidiata also are described as new. In addition, the new combination Crustoderma vulcanense is proposed. Keys to the species of Crustoderma, Radulomyces and Scopuloides are provided. 相似文献
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C. R. Betts 《Journal of Zoology》1986,1(2):255-282
The wings of selected species are here treated as functional deformable aerofoils and their morphology described with this in mind. A novel type of non-tubular vein structure in the forewing and hindwing membranes, a 'channel vein', is described. The presence of small, cuticular membrane thickenings in the hindwing is recorded and their possible functions are discussed.
A comparative account of the structure and musculature of the axillae is presented with a view in particular to clarifying some of the associated terminology.
A mechanism for wing folding is described and previously unrecorded adaptations for this purpose seen in Notonecta are described and discussed. 相似文献
A comparative account of the structure and musculature of the axillae is presented with a view in particular to clarifying some of the associated terminology.
A mechanism for wing folding is described and previously unrecorded adaptations for this purpose seen in Notonecta are described and discussed. 相似文献
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Linear rank tests for interval-censored data with application to PCB levels in adipose tissue of transformer repair workers 总被引:1,自引:0,他引:1
Linear rank statistics are described for testing for differences between groups when the data are interval-censored. The statistics are closely related to those described by Prentice (1978, Biometrika 65, 167-179) for right-censored data. Problems in calculating the statistics are discussed and several approaches to computation including estimation of the efficient rank scores are described. Results from a small simulation study are presented. The methods are applied to data from a study relating tissue levels of PCBs to occupational exposure. 相似文献