|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | A comparative study of mangrove floras in China and India显示文摘Species compositions in the mangrove habitats of China and India, especially on Hainan Island (China) and on the Sundarbans and the Andaman & Nicobar Islands (India), are of interest, showing several similarities and differences. The total mangrove areas of India cover about 6419 km 2 with 43 species (23 major and 20 minor species), while the mangrove areas of China cover about 150 km 2 with 26 speices (19 major and 7 minor speices). We carried out a comparison of mangrove floras in the Indian Sundarbans, Andaman & Nicobar Islands and in Hainan Island. The mangrove areas of the Indian Sundarbans comprise about 66.5% of the total Indian mangroves, presently covering an area of 4267 km 2 with 35 species from 22 genera and 16 families. There are 34 species from 17 genera and 13 families in the Andaman & Nicobar Islands. Hainan Island is considered a distribution center of mangroves; it has the largest number of mangrove species in China, i.e., 25 species from 15 genera and 12 families, accounting for about 96% of the total number of mangrove species in China. The mangroves of Hainan Island and the Andaman & Nicobar Islands belong to island types, while those of Sundarbans belong to inter-tidal deltaic types. Differences in soil type, rainfall, temperature, tidal fluctuation and other climatic features possibly cause variations in floristic composition of these regions. | YAO Yi-feng Subir BERA Kumudranlan NASKAR LIAO Wen-bo LI Cheng-sen | 2011 | Forestry Studies in China2011，13，3： | 4 |
| 2 | First fossil evidence of Palaeocarya(Engelhardioideae:Juglandaceae)from India and its biogeographical implications显示文摘Even though presently indigenous to eastern Himalaya in India,no Engelhardioideae have been reported from the Cenozoic sediments of India till date.Here,we report the first Indian occurrence of a characteristic engelhardioid winged samaroid fruit having a tri-lobed wing(oblong-ovate median lobe and two lateral lobes)and a globose nut from the latest Neogene(Pliocene:Rajdanda Formation)sediments of Chotanagpur Plateau,eastern India.This is the first fossil evidence of relict family Juglandaceae from the Indian Cenozoic.We determine its taxonomic position on the basis of detailed macromorphological comparison with similar extant and fossil specimens and discuss its palaeoclimatic significance in terms of the present-day distribution of modern analogous species.We assign this Pliocene winged fruit specimen to the morphogenus Palaeocarya sect.Monocosta Manchester and describe it as a new species,namely Palaeocarya indica Hazra,Hazra M&Khan sp.nov.Palaeocarya sect.Monocosta has rich fossil records from the Cenozoic sediments of Europe,North America,and eastern Asia(China,Korea),but the modern analog,Engelhardia,is presently native only to India and neighboring Southeast Asia.We discuss the possible causes of disappearance of Engelhardia from the present-day vegetation of Chotanagpur Plateau.Its disappearance may be related to the gradual intensification of monsoonal rainfall seasonality since the Pliocene.Here,we also review in detail the biogeographic history of Palaeocarya sect.Monocosta and suggest its possible migration routes. | Taposhi Hazra Manoshi Hazra Sanchita Kumar Sumana Mahato Meghma Bera Subir Bera Mahasin Ali Khan | 2021 | Journal of Systematics and Evolution2021，59，6： | 3 |
| 3 | Soral Crypsis:Protective Mimicry of a Coccid on an Indian Fern显示文摘Herbivory with crypsis is not well documented in ferns. The present record of cryptic coloration of coccid Saissetia filicum Boisduval (Homoptera: Coccidae) to the sori of a fern species Asplenium nidus L. (Aspleniaceae) is unique. Predatory beetles (Jauravia sp., Coleoptera: Coccinellidae) that feed on the coccids, are suggested to be selective pressure for the development of the present homopteran soral crypsis. A higher rate of effective predation is noticed in the vegetative leaves than the fertile leaves. Aggressive ants were found harvesting honeydew secretions from the coccids and defending the trophobionts as well as the host fern from their natural enemies. In addition, a possible three-way mutualistic relationship among the coccids, its host fern and the tending ant is suggested. Differential numbers of coccids on vegetative and fertile leaves is correlated with their phenol content and degree of predation by beetles. Such coloration mimicry by the coccids may enable them to obtain the necessary blend of sorus of the host fern needed to evade beetle detection and attack. | Biplab Patra Subir Bera R. James Hickey | 2008 | Journal of Integrative Plant Biology2008，50，6： | 2 |
| 4 | Nectar and Pollen Sources for Honeybee (Apis cerana cerana Fabr.) in Qinglan Mangrove Area, Hainan Island, China显示文摘在现在的学习,为蜜蜂(Apis cerana cerana Fabr ) 的花蜜和花粉来源在 Qinglan 红树属植物区域被学习,海南岛,中国,基于蜂蜜和花粉的显微镜的分析,从蜜蜂的负担(corbicular 和内脏内容) 在 10 月和 2004 年 11 月收集了。生来的蜂蜜样品的质、量的 melittopalynological 分析证明蜂蜜具有有含羞草属植物 pudica L 的 unifloral 类型。(Mimosaceae ) 作为占优势(89.14%) 为 A 花蜜和花粉采购原料。在 10 月的 cerana cerana。Araceae 的成员是一种重要未成年者(3%-15%) 花粉类型,而 Arecaceae 的那些是一个未成年者(<3%) 花粉类型。Nypa fruticans Wurmb, Rhizophora spp, Excoecaria agallocha L. , Lumnitzera spp, Bruguiera spp, Kandelia candel Druce,和 Ceriops tagal (Perr )C.B. 罗伯的花粉谷物。在在在蜂蜜作为次要的 taxa 记录的 Qinglan 红树属植物区域成长的著名红树属植物 taxa 之中。绝对花粉计数(即花粉 grains/10 g 蜂蜜样品的数字) 建议蜂蜜属于组 V (> 1 000 000 ) 。从 corbicular 和 A 的内脏内容的花粉分析。cerana cerana 揭示了 Sonneratia spp 的成员的最高级的表示(95.60%) 。(Sonneratiaceae ) ,由 Bruguiera spp 列在后面。(Rhizophoraceae ) , Euphorbiaceae, Poaceae, Fabaceae, Arecaceae, Araceae, Anacardiaceae,和 Rubiaceae。这些植物,属于 Sonneratia 植物的那些是为 A 的最重要的花蜜和花粉来源。cerana cerana 并且经常是 foraged 并且在 11 月由这些蜜蜂传花粉给。 | Yi-Feng Yao Subir Bera Yu-Fei Wang Cheng-Sen Li | 2006 | Journal of Integrative Plant Biology2006，48，11： | 2 |
| 5 | Pollen morphology in Saxifraga(Saxifragaceae) from Ny-Alesund, Svalbard, Arctic, and its taxonomic significance显示文摘Pollen morphology of eight species of Saxifraga,i.e.S.cespitosa,S.oppositifolia,S.cernua,S.nivalis,S.aizoides,S.rivularis,S.hieraciifolia,and S.hirculus,collected from Ny-Alesund,Svalbard,Arctic was examined using light and scanning electron microscopy.Pollen grains of Saxifraga species are subprolate or prolate,3-colpate,15.4–44.4μm in the polar axis,11.4–34.6μm in the equatorial axis,and show a P/E ratio 1.19–1.40.On the basis of exine ornamentation,four pollen types,viz.,the S.oppositifolia type(striate without scabrae on the muri),S.cernua type(striate with scabrae on the muri),S.nivalis type(microreticulate and operculum absent),and S.cespitosa type(microechinate and operculum present),were recognized.Hierarchical cluster analysis of the pollen morphological characters indicated that pollen morphology supports the infrageneric classification of the genus Saxifraga. | YAO Yifeng Bera Subir Ferguson David Kay LI Chengsen | 2014 | Advances in Polar Science2014，25，2： | 1 |
| 6 | Natural traps of spores and pollen grains from the region surrounding Wenbi Reservoir, Yunnan, China显示文摘We did a comparative analysis of pollen and spores from five kinds of natural pollen traps at Wenbi Reservoir, northwest Yunnan, China. The natural traps were the surface soil, ground inhabiting mosses, spider webs, tree bark and moss/lichen on trees. These traps showed qualitative and quantitative variations in the pollen and spore spectra. The palynomorphs recovered from the soil samples of trees and shrubs ranged from 90.54% to 95.98% of the total counts. These counts were higher than counts from ground mosses(53.13%–81.66%), spider webs(61.71%), bark samples(53.8%) and moss/lichen on trees(50%–53.6%). The result of pollen/spore analysis showed that surface soil, ground mosses and spider webs better reflect the local vegetation compared with tree bark or moss/lichen on trees. | SONG XiaoYan BERA Subir YAO YiFeng BLACKMORE Stephen LI ChengSen | 2013 | 科学通报2013，58，S1： | 1 |
| 7 | Photolumines- cence of ZnO quantum dots produced by a sol-gel process 显示文摘 | Debasis Bera Lei Qian Subir Sabui | 2008 | Opt Mater2008，30，： | 1 |
| 8 | Photoluminescence of ZnO quantum dots produced by a sol-gel process 显示文摘 | Debasis Bera Lei Qian Subir Sabui | 2008 | Optical Materials2008，30，12： | 1 |
| 9 | Occurrence of Persea Mill. from the Siwalik Forest of Darjeeling, Eastern Himalaya: Paleoclimatic and Paleogeographic Implications显示文摘Fossil leaf remains of two new species of Persea Mill., belonging to the family Lauraceae collected from the lower part of the Siwalik sediments(Gish Clay Formation of Sevok Group, Middle Miocene) of Darjeeling foothills of eastern Himalaya, are described. The new species are Persea miogamblei sp. nov. and Persea neovillosa sp. nov.. On the basis of leaf architecture(size, shape and venation pattern) fossil leaves described in this article closely resemble modern leaves of Persea gamblei(King ex Hook. f.) Kosterm. and Persea villosa(Roxb.) Kosterm.. The geographic distribution of the fossils and their modern counterparts are discussed and on that basis tropical evergreen vegetation with a warm and humid climate at the time of deposition of the Siwalik sediments is suggested in contrast to the present day tropical deciduous vegetation in this area. The present finding also suggests probable migration of these lauraceous taxa to Southeast Asia. | Mahasin Ali Khan Subir Bera | 2016 | Journal of Earth Science2016，27，5： | 1 |
| 10 | First fossil evidence of samaras of Ventilago Gaertn.(Rhamnaceae)from India and its implications显示文摘The Ventilago Gaertn.(Rhamnaceae)is widely distributed in pantropical areas of Africa,Asia,and Australia.However,fossil records of this taxon are sparse,which limits understanding of the evolution and biogeographic history of the genus.In the present study,we report and describe two new fossil species of Ventilago,V.siwalika sp.nov.from the Miocene sediments of Himachal Pradesh,western Himalaya,and V.pliocenica sp.nov.from the Pliocene sediments of Jharkhand,eastern India based on single-winged samaras.Ventilago pliocenica is characterized by a prominent midvein,obtuse to sub-round apex with mucronate tip,longitudinal secondary veins extending the full length of the fruit,and reticulate nature of higher-order veins,the presence of equatorial rim,the hypanthium,and short pedicel.On the other hand,V.siwalika is characterized by a prominent midvein,obtuse to sub-round apex with mucronate tip,longitudinal secondary veins extending the full length of the fruit,and reticulate nature of higher-order veins.Our discovery represents the first unambiguous fossil record of single-winged samara of Ventilago from India and provides valuable insights into the evolution of this genus.In this paper,we also review its biogeographic history and add new information to understand its hypothetical migration route.Present and earlier records of Ventilago also suggest that this genus was a common forest element during Neogene(Miocene time)in Asia. | Taposhi Hazra Sampa Kundu Subir Bera Tapan Chakraborty Mahasin Ali Khan | 2023 | Journal of Systematics and Evolution2023，61，6： | 0 |
| 11 | Evidence of the oldest extant vascular plant(horsetails)from the Indian Cenozoic显示文摘Equisetum(Equisetaceae)has long been a focus of attention for botanists and palaeontologists because,given its extensive and well-documented fossil record,it is considered the oldest extant vascular plant and a key element in understanding vascular plant evolution.However,to date,no authentic fossil evidence of Equisetum has been found from the Indian Cenozoic.Here,we describe a new fossil species,namely,E.siwalikum sp.nov.,recovered from the middle Siwalik(Late Miocene)sediments of Himachal Pradesh,western Himalaya.We identified fossil specimens based on morphological and epidermal characters.In addition,X-Ray diffraction(XRD)analysis was used to determine the mineral composition of compressed stems of Equisetum.The close affinity of our recovered Siwalik fossils to Equisetum is supported by the presence of both macromorphological and epidermal characters.Because Equisetum generally grows in wet conditions around water reservoirs,our findings indicate that the fossil locality was humid and surrounded by swamp and lowland regions during deposition.Ample fossil evidence indicates that this sphenopsid once existed in the western Himalaya during the Siwalik period.However,at present Equisetum is confined to a particular area of our fossil locality,probably a consequence of severe environmental changes coupled with competition from opportunistic angiosperms.Our discovery of Equisetum fossils in appreciable numbers from the Siwalik sediments of the Himachal Himalayas is unique and constitutes the first reliable recognition of Equisetum from the Indian Cenozoic. | Sampa Kundu Taposhi Hazra Tapan Chakraborty Subir Bera Mahasin Ali Khan | 2023 | Plant Diversity2023，45，5： | 0 |
| 12 | Man-environment interaction and its impact since ca. 3600 years BP in West Bengal, India: A multiproxy approach显示文摘Climatic variability during the Holocene and corresponding anthropogenic response have gained considerable attention in different parts of India, but surprisingly very little is known on climate-human interrelationship from eastern India especially from the Gangetic plains of West Bengal. As climate has played significant role behind the collapse of many of the ancient human civilizations hence, to explore the reason behind the abandonment of any archaeological site, understanding of the climate of the contemporaneous past is a prerequisite. Agricultural development, subsistence strategies and dynamic behavior of climate in the Lower Gangetic plains of West Bengal since ca. 3600 cal a BP(Chalcolithic period) and post-Chalcolithic period(ca. 2350–2120 cal a BP to recent) were explored using multiproxy approach including plant-animal macro remains, wood charcoals and pollen and non-pollen palynomorphs from an archaeological site at Pakhanna, district Bankura in West Bengal, India. Evidences from palynological and phytolith data suggest that a warm-moist tropical climate during ca. 3600 cal a BP supported the spread of a village farming community in this part of lower Gangetic plains of West Bengal who practiced double-cropping as evidenced by the recovery of cereals(rice) and pulses(black gram) from the cultural deposits of Chalcolithic and Early Historic periods. In addition, a plenty of animal remains(opercula of carp fishes, fragments of plastron of Indian Soft Shelled Turtle, Indian Flap Shelled Turtle, ramus of mandible with teeth of Indian Boar) from similar cultural deposits indicate their probable inclusion in dietary list. The climate started changing during the onset of Early Historic period ca. 2350 cal a BP as revealed by pollen and phytolith proxies and became warmer and drier than that in earlier phase which is continuing till recent. The observations of palynological and phytolith data were also corroborated by the results of correspondence analysis(CA) and canonical correspondence analysis(CCA) respectively. Recovery of rice and mustard from Early Historic deposits suggests their continued cultivation at a later phase. Rich assemblages of animal macro remains from the post-Chalcolithic deposits(ca. 2350–2120 cal a BP) indicate their use as food resources in later phase too. Considering the database obtained from all the proxies it can be concluded that a moist-tropical climatic condition was prevailing during Chalcolithic period(ca. 3600 cal a BP) and later gradually shifted to a slight drier condition in lower Gangetic West Bengal. | GHOSH Ruby BERA Subir BANERJEE Manju | 2013 | 科学通报2013，58，S1： | 0 |
| 13 | Plant Remains from an Archaeological Site as Indicators of Vegetation and Agricultural Practice Between(3 320±400) and(2 080±80) yr BP in Gangetic West Bengal,India显示文摘多样的植物遗体在 Pakhanna 的 Bhairabdanga 区域从一个考古学的地点恢复了 ofChalcolithic 早历史性的年龄(纬度 23 ° 2 5''N, longitude87 ° 2 3''E ) ,位于 Damodar 河的西岸, Bankura 区域,韦斯特孟加拉,印度,包括食物谷物,木头炭,和 palynomorphs。恢复生物遗体标明日期的放射性碳是揭示这个地点的年龄(3 320 ± 400 ) 到(2 080 ± 80 ) 年 BP。食用粮食作为 Oryza sativa L 被识别。并且 Brassica cf 的 Vigna mungoL,和种子。campestris L.were 也发现了;这些显示从 Chalcolithic 生活在 Pakhanna 到早历史性的时期的古老的人的农业实践和食性。包括植物遗体的沉积广泛地被划分了成二个地区,就标明日期的考古学的调查结果和放射性碳而言。植物的分析留下(即木头炭和 palynomorphs )除了栽培食物,谷物表明了一个富有的植被封面在这个区域存在,与占优势热带并且湿润气候,包括产出木材的植物 Shorea sp , Terminaliasp ,和 Tamarindus sp ,与多样的灌木和植物的下层林丛在 Chalcolithicperiod 期间(地区我)过时( 3 320 ± 400 )植物遗体的 BP.Comparatively 更穷的表示和频率在早历史性的时期(地区 II )期间显示更干燥的气候的年是标明日期( 2 110 ±3 40 )到( 2 080 ± 80 )年 BP 。 archaeobotanical 数据的比较从 theChalcolithic 和早历史性的时期并且也恢复了一个原则部件分析在区域的气候显示一个变化从在热带、潮湿( 3 320 ± 400 )年 BP 到热带、更干燥的条件在( 2 110 ± 340 )到( 2 080 ± 80 )年 BP 。present-daytropical,区域的干燥脱落植被建议自从同时期的过去,那个气候变化发生在区域。植物遗体数据库被利用了重建在这个地点在之间的社区生活的解决模式(3 320 ± 400 ) 并且(2 080 ± 80 ) 年 BP。Thecommunity 在河岸附近安定,练习耕作。 | Ruby Ghosh Subir Bera Ashalata D'Rozario Manju Banerjee Supriyo Chakraborty | 2006 | Journal of Integrative Plant Biology2006，48，6： | 0 |
| 14 | Pollen morphology of selected tundra plants from the highArctic of Ny-lesund, Svalbard显示文摘Documenting morphological features of modern pollen is fundamental for the identification of fossil pollen, which willassist researchers to reconstruct the vegetation and climate of a particular geologic period. This paper presents the pollen morphol-ogy of 20 species of tundra plants from the high Arctic of Ny- lesund, Svalbard, using light and scanning electron microscopy.The plants used in this study belong to 12 families: Brassicaceae, Caryophyllaceae, Cyperaceae, Ericaceae, Juncaceae, Papav-eraceae, Poaceae, Polygonaceae, Ranunculaceae, Rosaceae, Salicaceae, and Scrophulariaceae. Pollen grain shapes included: spher-oidal, subprolate, and prolate. Variable apertural patterns ranged from 2-syncolpate, 3-colpate, 3-(-4)-colpate, 3-(-5)-colpate,3-colporate, 5-poroid, ulcerate, ulcus to pantoporate. Exine ornamentations comprised psilate, striate-perforate, reticulate, mi-croechinate, microechinate-perforate, scabrate, granulate, and granulate-perforate. This study provided a useful reference for com-parative studies of fossil pollen and for the reconstruction of paleovegetation and paleoclimate in Svalbard region of Arctic. | YAO Yifeng ZHAO Qi BERA Subir LI Xiaoli LI Chengsen | 2012 | Advances in Polar Science2012，23，2： | 0 |
| 15 | Coryphoid palms from the K-Pg boundary of central India and their biogeographical implications:Evidence from megafossil remains显示文摘Ten palm leaf impressions are documented from the latest Maastrichtian(late Cretaceous) to early Danian(earliest Paleocene) sediments(K-Pg,c.66-64 Ma) of the Mandla Lobe of the Deccan Intertrappean Beds,Madhya Pradesh,central India.The palmate leaf shape along with a definite wellpreserved costa support their placement in the subfamily Coryphoideae of the family Arecaceae.We place all recovered palm leaf specimens in the fossil genus Sabalites,report seven species of coryphoid palms and describe two new species namely,Sabalities umariaensis sp.nov.and Sabalites ghughuaensis sp.nov.The fossils indicate that coryphoid palms were highly diverse in central India by the latest Cretaceous.These and earlier reported coryphoid palm fossils from the same locality indicate that they experienced a warm and humid tropical environment during the time of deposition.These discoveries confirm the presence of a diversity of Coryphoideae in Gondwana prior to the India-Eurasia collision and provide information about coryphoid biogeographical history over geological time.Based on megafossil remains,we trace coryphoid palm migration pathways from India to mainland Southeast(SE) Asia and other parts of Asia after the docking of the Indian subcontinent with Eurasia early in the Paleogene. | Sanchita Kumar Taposhi Hazra Robert A.Spicer Manoshi Hazra Teresa E.V.Spicer Subir Bera Mahasin Ali Khan | 2023 | Plant Diversity2023，45，1： | 0 |
| 16 | Tree barks as a natural trap for airborne spores and pollen grains from China显示文摘The present article deals with the use of tree barks as a natural trap for airborne spores and pollen grains in China.The study carried out at the southern part of Beijing Botanical Garden,Institute of Botany,Chinese Academy of Sciences has yielded a variety of palynomorphs mostly belonging to tree taxa.New methodologies for extraction of palynomorphs from tree barks have been suggested.Bark samples were collected from three taxa,i.e.,Paulownia fortunei Hemsl.(Scrophulariaceae),Quercus dentata Thunb.(Fagaceae),and Picea meyeri Rehder&E.H.Wilson(Pinaceae)having different bark morphologies.P.fortunei with a comparatively soft and fissured bark is believed to have a greater potential for trapping airborne spores and pollen grains compared to the stiff and less fissured barks of Q.dentata and the scaly bark of P.meyeri.Old barks yield better data in terms of quantity and quality of trapped pollen and spores.The present study throws new light on the modern pollen rain,spore-pollen dispersal,and their deposition in and aroundBeijing Botanical Garden,and other different parts of China. | Xiaoyan Song Subir Bera Yifeng Yao David K.Ferguson Chengsen Li | 2014 | Chinese Science Bulletin2014，59，19： | 0 |
| 17 | Siwalik plant megafossil diversity in the Eastern Himalayas: A review显示文摘The Eastern Himalayas are renowned for their high plant diversity.To understand how this modern botanical richness formed,it is critical to investigate past plant biodiversity preserved as fossils throughout the eastern Himalayan Siwalik succession(middle Miocene-early Pleistocene).Here,we present a summary of plant diversity records that document Neogene floristic and climate changes.We do this by compiling published records of megafossil plant remains,because these offer better spatial and temporal resolution than do palynological records.Analyses of the Siwalik floral assemblages based on the distribution of the nearest living relative taxa suggest that a tropical wet evergreen forest was growing in a warm humid monsoonal climate at the deposition time.This qualitative interpretation is also corroborated by published CLAMP(Climate Leaf Analysis Multivariate Program) analyses.Here,we also reconstruct the climate by applying a new common proxy WorldClim2 calibration.This allows the detection of subtle climate differences between floral assemblages free of artefacts introduced by using different methodologies and climate calibrations.An analysis of the Siwalik floras indicates that there was a gradual change in floral composition.The lower Siwalik assemblages provide evidence of a predominance of evergreen elements.An increase in deciduous elements in the floral composition is noticed towards the close of the middle Siwalik and the beginning of the upper Siwalik formation.This change reflects a climatic difference between Miocene and Plio-Pleistocene times.This review helps us to understand under what paleoenvironmental conditions plant diversity occurred and evolved in the eastern Himalayas throughout the Cenozoic. | Mahasin Ali Khan Sumana Mahato Robert A.Spicer Teresa E.V.Spicer Ashif Ali Taposhi Hazra Subir Bera | 2023 | Plant Diversity2023，45，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员