西藏高寒草地物种多样性和生产力的环境驱动机制

全球变暖影响物种多样性和生产力及其关系。关于全球和区域的物种多样性与生产力关系已有许多研究,但气候变暖背景下西藏高寒草地物种多样性与生产力的关系及其环境驱动机制研究仍然很少。基于西藏高寒草地实测的35个样点调查数据,利用回归分析、Pearson相关性分析、方差分解和结构方程模型等方法,探究了物种多样性和生产力的关系及其影响机制。研究发现:(1)高寒草地的物种丰富度指数和香农-威纳指数与地上植被净初级生产力(ANPP)呈显著正相关关系,且ANPP对物种丰富度指数的变化更为敏感;(2)物种丰富度指数与经度、土壤有效氮、土壤有效磷、年降水量呈显著正相关;Shannon-Wiener指数与海拔和纬度呈显著负相关,与年均温度呈显著正相关;ANPP与经度、土壤有效氮、年降水量和年均温度呈显著正相关,与海拔、纬度和土壤有效钾呈显著负相关;(3)地理因子、土壤养分和气候因子的交互作用对物种丰富度指数和ANPP的贡献率最大,分别为10.99%和32.91%,地理因子和气候因子的交互作用对Shannon-Wiener指数的贡献率最大,为13.61%;(4)地理因子通过调控土壤养分和气候因子间接影响物种多样性和ANPP,土壤养分和气候因子均直接影响物种多样性和ANPP。研究结果揭示了环境因子对物种多样性和生产力的综合调控机制,为西藏高寒草地生态系统科学应对气候变化提供了依据。     

中国春孢锈菌属增补

本文对我国春孢锈菌属(形式属)增补了以下9个种：1．腺梗菜春孢锈菌Aecidium adenocauli Syd． 寄主：腺梗菜Adenocaulon himalaicum Edgew (菊科Compositae) 2．臭椿春孢锈菌(新种) Aecidium ailanthi J．Y．Zhuang sp．nov．寄主：臭椿 Ailanthus altissima Swingle (苦木科Simaroubaceae)3.筋骨草春孢锈菌 Aecidium alugae Syd．寄主：紫背金盘 Ajuga nioponensis Makino (唇形科 Labiatae) 4．八角枫春孢锈菌 Aecidium alangii Hirats．＆ Yosh 寄主：长毛八角枫 Alangium kurzii Craib,瓜木A platanifoHum Harms (八角枫科 Alangiaeeae) 5．紫珠生春孢锈菌(新种) Aecidium callicarpivola J Y．Zhuang sp．nov.寄主：杜虹花 Callicarpa oedunculata R,Br．(马鞭草科Verbenaeeae) 6．吴茱萸春孢锈菌(新种) Aecidium evodiae J．Y．Zhuang sp．nov． 寄主：吴茱萸 Evodia rutaecarva (Juss．)Benth．(芸香科Rutaceae) 7．杨叶木姜子春孢锈菌(新种) Aecidium litseae-populifoliae J．Y．Zhuang sp．Nov．寄主：杨叶木姜子 Litsea povulifolia Gamble (樟科Lauraceae) 8．青海春孢锈菌(新种) Aecidium qinghaiense J Y．Zhuang sp．nov． 寄主：莴苣属一种Lactuca sp．(菊科Compo sitae) 9．合掌消春孢锈菌 Aecidium vincetoxici P．Henn．＆ Shirai 寄主：牛皮消 Cynanchum auriculatum Royle (萝藦科 Asclepiadaceae)     

中国细基格孢属分类研究Ⅱ.

描述报道了细基格孢属UlocladiumPreuss的4个新种:韭细基格孢U.allii-tuberosi、栗细基格孢U.castaneae、高粱细基格孢U.sorghi和马蹄莲细基格孢U.zantedeschiae;3个中国新记录种:黑细基格孢U.atrum、倒卵细基格孢U.obovoideum和奥德曼细基格孢U.oudemansii。对新种分别进行了拉丁文和中文描述,并附图。研究过的自然标本和干制培养物标本保存于山东农业大学植物病理系标本室(HSAUP)。     

中国原花蝽属新种及新纪录（半翅目：花蝽科）

本文记载中国花蝽科原花蝽属Anthocoris Fallen新种6个,计为:黑角原花蝽A.atricarnis sp.n.(模式产地:云南),哀牢原花蝽A.ailaoanus sp.n.(模式产地:云南),杨氏原花蝽A.yangi sp.n.(模式产地:云南),刺突原花蝽A.armatus sp.n.(模式产地:云南),萧氏原花蝽A.hsiaoi sp.n.(模式产地:四川、陕西),秀原花蝽A.concinnus sp.n.(模式产地:西藏)。文章并记录此属的3个中国新记录种;并为已被占用的A.elongatus Zheng 1982命以新名:A.longiusculus nom.nov.     

Occurrence of species of the genusDaphnia in Brazil

Three species ofDaphnia are recorded from natural lakes and reservoirs in Brazil:Daphnia gessneri, Herbst, 1967,Daphnia ambigua, Scourfield, 1947 andDaphnia laevis, Birge, 1878. Some comments on their geographical distribution and ecology are made, showing the trend of the presence of these species in eutrophicated environments.     

中国皮司霉属分类研究 I

报道了采集自我国境内的皮司霉属Pithomyces 8个新种:山葵皮司霉P.arecastri sp.nov.,串珠皮司霉P.cateniformis sp.nov.,椭圆皮司霉P.ellipticus sp.nov.,蠕形皮司霉P.helminthosporioides sp.nov.,长柄皮司霉P.longipes sp.nov.,倒梨形皮司霉P.obpyriformis sp.nov.,络石皮司霉P.trachelospermi sp.nov.,和羊蹄甲皮司霉P.variegatae sp.nov.。2个中国新记录种:油棕生皮司霉P.elaeidicola和垫状皮司霉P.pulvinatus。新种分别进行了详实的拉丁文和中文描述并附图。研究标本(自然标本和干制培养物)保存于山东农业大学植物病理系标本室(HSAUP)。     

Folsomia (Collembola: Isotomidae) of China. II. heterocellata group

An annotated list of species of the Folsomia heterocellata group recorded in China is given. Folsomia cephalota n. sp., F. dorsomediaseta n. sp., F. longiseta n. sp., F. manubriopilosa n. sp., F. longdeica n. sp., and F. plenosensilla n. sp. are characterized by having a simple maxillary palp, four prelabral setae and no eyes. They differentiate mainly by characteristics of the furca. We report other species of the group which are recorded for the first time in China: Folsomia tianshanica Martynova, 1969, F. pseudovtorovi Potapov & Gulgenova, 2013, and F. pseudodecemoculata Stebaeva, 1971. This excludes F. wanxianensis Ji, Ding & Chen, 2007, for which we provide morphological remarks based on the type material. The group is mainly distributed in the central part of China (Chongqing, Gansu, southern part of Inner Mongolia, Ningxia and Shaanxi provinces). A key to all blind species with a simple maxillary palp is given.     

New species and new records in Cerambycidae (Coleoptera) of the state of Bahia,Brazil

Two new species are described from Bahia (Brazil): Coleoxestia beckeri (Cerambycini), and Oncioderes obliqua (Onciderini). Nine species are recorded for the first time for Bahia (Brazil). Key to species of Oncioderes Martins & Galileo, 1990 is provided. Coleoxestia beckeri is included in a previous key.     

云南省柳叶藓科植物新记录

在研究标本和文献的基础上,报道了云南省柳叶藓科植物的11个新分布记录种和3个变种,包括1个中国新分布记录种细肋镰刀藓(Drepnocaldus tenuinervis Kop.),并对它们的生境和地理分布作了初步讨论．     

海南岛蕨类植物新资料

记录海南蕨类植物新分布15种,这15种植物是毛叶粉背蕨(Aleuritopteris squamosa)、光脚短肠蕨(Allantodia deoderleinii)、淡绿短肠蕨(Allantodia virescens)、台湾车前蕨(Antrophyum formosanum)、岭南铁角蕨(Asplenium sampsonii)、薄叶阴地蕨(Botrychium daucifolium)、黑足鳞毛蕨(Dryopteris fuscipes)、太平鳞毛蕨(Dryopteris pacifica)、爪哇鳞始蕨(Lindsaeajavanensis)、黑鳞剑蕨(Loxogramme assimilis)、网脉海金沙(Lygodium subareolatum)、三轴凤尾蕨(Pteris longipes)、翠绿凤尾蕨(Pteris longipinnula)、布郎卷柏(Selaginella braunii)和高雄卷柏(Selaginella repanda)。海南现有蕨类植物已达到约450种(包括变种)。     

陕西蕨类植物新记录

报道了陕西分布新记录的11种蕨类植物,即峨眉盾蕨（Neolepisorus emeiensis）、边缘鳞盖蕨（Microlepia marginata）、肾羽铁角蕨（Asplenium humistratum）、城口铁角蕨（A. chengkouense）、蚀盖耳蕨（Polystichum erosum）、伴藓耳蕨（P. muscicola）、尾叶耳蕨（P. thomsonii）、尖齿耳蕨（P. acutidens）、康定耳蕨（P. kangdingense）、石韦（Pyrrosia lingua）和绒紫萁（Osmunda claytoniana）,凭证标本均保存于西北农林科技大学植物标本馆（原西北植物研究所标本馆）（WUK）。至此,陕西现有蕨类植物已有258种（不包括变种和变型）。     

New species and new records of diatoms from Lake Fuxian,China

One new species, four newly recorded genera, and two newly recorded species of diatoms are de-scribed from China. They are Sellaphora fuxianensis sp. nov. Li, Sellaphora Mereschkowsky, Karayevia Round & Bukhtiyarova, Placoneis Mereschkowsky, Fallacia Stickle & Mann, Placoneisprespanensis Levkov, Krstic & Nakov, and Fallacia lucinensis (Hustedt) D. G. Mann. All taxa were collected from Lake Fuxian in Yunnan Province, China. These species were observed with light and scanning electron microscopes, and their taxonomic characters are discussed.     

中国近海珊瑚螺科研究及新种记述

珊瑚螺科Coralliophilidae属腹足纲、新腹足目、骨螺总科.本科动物主要分布于热带和亚热带暖水区,通常栖息于珊瑚礁间和较深的海域.在国内对本科动物除一些零星报道外,尚未做系统研究,作者根据中国科学院海洋研究所历年来收集的标本资料,经整理研究,共鉴定出23种,隶属于6属,其中有1个新种和中国4新纪录.     

中国北方粉蛉新种及新记录 (脉翅目：粉蛉科)

该文论述了我国北方粉蛉7种,其中卷粉蛉属Helicoconis及污褐卷粉蛉Helicoconis (Helicoconis)lutea为中国新记录,另包括粉蛉属Cxraiopteryx北方粉蛉Coniopteryx(Coniopteryx)arctica sp.nov,、周氏粉蛉Coniopteryx(Oniopteryx)choui,sp.nov.、宽带粉蛉Oniopteryx(Coniopteryx)vittiformis,sp nov.3新种及圣洁粉蛉Coniopteryx Coniopteryx)parthenia(Navas & Marcet,1910)、蒙干粉蛉Coniopteryx(Xeroconiopteryx)mongolica Melnander、爪干粉蛉Onioptery(Xeroconiopteryx)unguigonarcuata Aspock & Aspock 3中国新记录种。     

贵州种子植物分布新记录（二）

报道贵州分布新记录植物25种4变种,即七裂槭 （Acer heptalobum Diels.）、长柄槭（A. longipes Franch ex Rehd.）、富源杜鹃（Rhododendron fuyuanense Z. H. Yang.）、毛柱马缨花（R. delavayi Franch. var. pilostylum K. M. Feng.）、西藏白珠树（Gaultheria wardii Marq. &; Airy Shaw.）、滇豹子花（Nomocharis forrestii Balf.）、黄精（Polygonatum sibircum Delar.ex Redouté.）、 轮叶黄精［P. verticillatum (Linn.) All.］、细根黄精（P. gracile P. Y. Li.）、 距花万寿竹（Disporum calcaratum D. Don.）、 黄花油点草（Tricyrtis latifolia Maxin.）、铺散毛茛（Ranuculus diffuses DC.）、棱喙毛茛（R. trigonus Hand.—Mazz.）、昆明毛茛（R. kunmingensis W.T.Wang.）、展毛昆明毛茛（R. kunningensis W. T. Wang var. hispidus W. T. Wang.）、桔红悬钩子（Rubus aurantiacus Focke.）、西畴悬钩子（R. xichouensis Yü &; Lu.）、黑腺美饰悬钩子（R. subornatus Fooke var. melanadenus Focke.）、多脉悬钩子（R. phoenicolasius Maxim.）、掌叶悬钩子（R. pentagonus Wall. ex Focke.）、 裂叶西康绣线梅［Neillia thibetica Bur. &; Franch. var. lobata (Rehd.) Yü.］、 川康绣线梅（N. affinis Hemsl.）、毛山楂（Crataegus maximowiczii Schneid.）、维西小檗（Berberis weixiensis C. Y. Wu ex S. Y. Bao.）、 南川小檗（B. fallaciosa Schneid.）、万源小檗（B. metopolyantha Ahrendt.）、尼泊尔十大功劳（Mahonia napaulensis DC.）、 长苞十大功劳（M. longibracteata Takeda.）、丁座草［Boschniakia himalaica (Hook. f. &; Thoms.) G. Beck.］。     

Corticioid fungi from the Kimberley Region,Western Australia

Summary  Corticioid fungi from the Kimberley Region of Western Australia are reviewed. 31 species are reported, of which five, Aleurodiscus kimberleyanus, Athelopsis vesicularis, Dendrothele cornivesiculosa, Hyphoderma tubulicystidium, and Phanerochaete subcrassispora are described as new. Grandinia glauca is given the new combination Grammothele glauca, and Hydnum investiens the new combination Phanerochaete investiens. A further eight species are recorded which have not previously been reported from Australia.