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Assessing Conservation Values of Forest Communities in Nanda Devi Biosphere Reserve: Plant Diversity, species Distribution and Endemicity

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Journal of Mountain science 2015年第4期12卷 878-890页

作者： Balwant RAWAT sanjay GAIROLA Ranbeer s.rawal G.B.Pant Institute of Himalayan Environment and Development society for the Conservation of Nature Parnkuti Anantpur University Road sharjah seed Bank & Herbarium Laboratory Sharjah Research Academy University of Sharjah

Present study has been conducted in a biodiversity rich Nanda Devi Biosphere Reserve between 2000-3800 m in two different forest physiognomy holding sites to analyze the structure and composition of the forest communities including richness of native, non native and endemic species,and suggest conservation values at community and reserve level.A total of 60 sites were sampled and grouped in 11 and 8 communities for two representative sites Pindari-sunderdhunga-Kafni(PsK) and Lata-Tolma-Phagti(LTP) *** the sampled sites, 451 species(11.8%, 53 trees;17.71%, 80 shrubs; and 70.51%, 318 herbs) have been *** general, PsK site represented 73.6% and LTP site represented only 54.9% of the total plant species recorded in the study *** of total species in PsK site, native species contributed 59.6%(198spp.) and 24.7% species were endemic and near *** LTP site, 66.5% species were Himalayan natives and 33.5% were endemic and near *** species richness ranged from 4-23 ind ha-1(tree),3-18 ind ha-1(sapling), 5-19 ind ha-1(seedling) in PsK site and 4-18 ind ha-1(tree), 4-11 ind ha-1(sapling), 4-16 ind ha-1(seedling) in LTP *** density ranged from 260-535 ind ha-1(tree), 145-633 ind ha-1(sapling), 1450-8170 ind ha-1(seedling) in PsK site and 599-1211 ind ha-1(tree), 70-951 ind ha-1(sapling),470-1665 ind ha-1(seedling) in LTP *** diversity for trees ranged from 0.73-3.37, saplings,0.64-2.67, seedlings, 0.70-2.51, shrubs, 1-2.34 and herbs, 2.02-3.21 in PsK site and 0.63-1.61, saplings,0.76-1.36, seedlings, 0.35-1.79, shrubs, 0.98-2.73 and herbs, 2.48-3.61 in LTP *** recorded values were almost comparable with the studies conducted in sub-tropical, temperate and sub-alpine regions of the west *** some cases the values were slightly higher than the reported *** important communities with high conservation values have been identified based on different ecological parameters and species *** all the

关键词： Biosphere reserve structure Composition Native Endangered Conservation

The present status and future prospects of forest vegetation in part of Nanda Devi Biosphere Reserve(a World Heritage site),India

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Journal of Forestry Research 2015年第4期26卷 897-904页

作者： Balwant Rawat sanjay Gairola K.Chandra sekar Ranbeer s.rawal G.B.Pant Institute of Himalayan Environment and Development Kosi-KatarmalAlmoraUttarakhand 263643India Forest Ecology and Environment Division Forest Research InstituteDehradunUttarakhand 248006India society for the Conservation of Nature Parnkuti Anantpur University RoadRewaMadhya PradeshIndia

We studied forest vegetation at Lata-Tolma- Phagti, a protected area and part of Nanda Devi Biosphere Reserve in the western Himalaya. We analyzed community composition, population structure, regeneration patterns, and projected development of future compositional patterns. We sampled ten 10 x 10 m quadrat for tree species in each of 30 forest stands. We sampled shrubs in ten 5 x 5 m quadrat, and herbs in twenty 1 x 1 m quadrat within each forest stand. We recorded 248 plant species from 8 forest communities. Broadly the demographic profiles at study sites exhibited progressive structures suggesting long term persistence of the communities/species. Density--diameter distribution revealed greater proportions of seedlings and a significant decline （P 〈 0.05） in the proportion of trees in older age/size classes. Of the 23 recorded tree species, 13.0 % showed good, 52.2 % fair, 26.1% poor and 8.7 % no regeneration. Differences in regeneration by species are indicative of future foreststructure and dynamics. Assessment of changes in structure of forest types provides baseline data for development of priorities for conservation of other representative land- scapes in the reserve as well as in the Himalaya.

关键词： Regeneration pattern Population structure Compositional changes

Ecological variables influencing the diversity and distribution of macrolichens colonizing Quercus leucotrichophora in Uttarakhand forest

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Journal of Mountain science 2018年第2期15卷 307-318页

作者： shashi UPADHYAY Arun K.JUGRAN Yogesh JOsHI Renu sUYAL Ranbeer s.rawal Lichenology laboratory S.S.J.Campus Kumaun University Biodiversity Conservation & Management Ecosystem Services and Climate Change Group G.B.Pant National Institute of Himalayan Environment and Sustainable Development G.B.Pant National Institute of Himalayan Environment and sustainable Development Garhwal Unit

Ecological variables play a significant role in determining the diversity and distribution of any living organism on earth. Lichens are not exceptional and are quite sensitive in comparison to other organisms; hence the present study focuses on the impact of ecological variables on the diversity and distribution of epiphytic macrolichens colonizing Quercus leucotrichophora across eight different sites(50 m × 50 m) in Thal Ke Dhar forest, Kumaun Himalaya, Uttarakhand, India. For sampling of macrolichens, 200 trees(25 trees from each site) of *** were selected from each site and five quadrats of 5 cm × 10 cm(1000 quadrats in totality) were drawn at the tree trunk. From all the sampled trees, a total of 54 species of epiphytic macrolichens belonging to 18 genera and five families were recorded. Various ecological variables, namely altitude, aspect, slope, diameter at breast height(DBH), and lopping percent(partial cutting of the twigs as disturbance), were also analyzed to investigate their influence on macrolichen species composition and distribution pattern in the study area. For the determination of relationships between these variables, statistical analysis, namely Pearson's Correlation Coefficient, Polynomial regression analysis and Principal Component Analysis(PCA)were performed. Out of all variables, lopping was significantly correlated to species richness of epiphytic macrolichens(0.712~*, ps confirmed by Pearson's Correlation *** of having high anthropogenic pressure or impact through lopping, the maximum number of macrolichen species was recorded at elevation 2267 meter above sea level(m asl). The present study revealed that besides other ecological variables,lopping practices can act as a key parameter incontrolling the diversity and distribution not only of epiphytic macrolichens but also of other life forms such as bryophytes, pteridophytes, insects, birds *** can be either negatively or positively correla

关键词： Conservation Epiphytic macrolichens Kumaun Himalaya Lopping Quercus Banj oak

Characterization of Agro-diversity by seed storage Protein Electrophoresis:Focus on Rice Germplasm from Uttarakhand Himalaya,India

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Rice science 2010年第2期17卷 122-128页

作者： Arun JUGRAN Indra D.BHATT Ranbeer s.rawal G.B.Pant Institute of Himalayan Environment and Development Kosi-Katarmal

The characteristics of 48 rice varieties from Uttarakhand Himalaya, India were detected by morphological and biochemical markers. The grains of the selected rice varieties varied in their morphological （grain length, grain width and grain weight） and biochemical characters （sodium dodecyl sulfate polyacrylamide gel electrophoresis, sDs-PAGE）. Based on the presence of 70, 65, 60, 57, 37-39, 22-23, 13 and 10 kDa protein bands in the 48 rice varieties, seven types of profiles were identified. An unweighted pair group average method with arithmetic mean （UPGMA） dendrogram based on cluster analysis of genetic similarity of the protein bands showed two distinct groups with 1%-78% similarity coefficients. The presence of characteristic bands in selected varieties is a useful parameter for identification of rice germplasm.

关键词： rice seed storage protein sodium dodecyl sulfate polyacrylamide gel electrophoresis genetic diversity polymorphism varietal identification

Influence of edaphic factors on distribution and condition of Himalayan silver birch(Betula utilis ***)communities in the northwestern Indian Himalayas

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Journal of Mountain science 2024年第2期21卷 590-606页

作者： Khashti DAsILA Renu rawal Tanay BARMAN sher singh sAMANT Anita PANDEY Veena PANDE G.B.Pant National Institute of Himalayan Environment Almora 263643India Centre of Excellence on sustainable Land Management Indian Council of Forestry Research and EducationDehradun 248006India Uttarakhand state Council for science&Technology Dehradun 248015India Department of Biotechnology Graphic Era(Deemed to be University)Dehradun 248002India Department of Biotechnology Kumaun UniversityNainital 263136India

The basic concept of phytosociology is crucial for the assessment of species composition and dynamic ecological succession of forests supporting ecological services,functions,disturbance,and resilience that lead to the development of integrated areas such as ecological niche modeling and contribute to identifying the valuable bio-indicators which can be used in framing conservation and management *** is one of the most dominant tree species of treeline ecotone in the Himalayan *** species is also considered as indicator species for monitoring the past and recent climate change *** current study was carried out in the natural populations of *** from the sub-alpine zone of North-western Indian *** birch dominated forest harbors a total of 305 plant species comprising Angiosperms(51 families,160 genera and 277 species),Gymnosperms(03 families,05 genera and 07 species)and Pteridophytes(07 families,11 genera and 21 species)with Asteraceae,Ranunculaceae and Rosaceae as dominant *** forests are found dominant in shady moist habitat and North West *** characteristics,anthropogenic and developmental activities affect the population structure of *** and associated ***,the species has fair regeneration status in the study *** acidic nature of soil pH and spatial variation in edaphic characteristics may be due to geographical differences,rooting patterns and litter accumulation of below and above-ground *** estimation of a representative population of *** from each site showed that TAGBD,TCD and TBD were found maximum in sT3(Hamta Pass II site).The CCA analysis determined that environmental variables such as altitude,organic matter,available phosphorous,organic carbon,available nitrogen,and electrical conductivity played a significant role in determining tree species composition and distribution in *** dominated forests.

关键词： species composition Indicator species Biomass North-western Indian Himalaya Regeneration Environmental variables

Comparative analysis of real-world data of frequent treatment sequences in metastatic prostate cancer

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Current Urology 2024年第2期18卷 104-109页

作者： Jiten Jaipuria Ishleen Kaur Mohammad Najmud Doja Tanvir Ahmad Amitabh singh sudhir Kumar rawal Vineet Talwar Girish sharma Uro-oncology division Rajiv Gandhi Cancer Institute and Research CentreNew DelhiIndia Amity Centre for Cancer Epidemiology and Cancer Research Amity Institute of BiotechnologyAmity UniversityNoidaIndia school of Engineering and Technology Vivekananda Institute of Professional Studies–Technical CampusNew DelhiIndia Department of Computer Engineering Jamia Millia IslamiaNew DelhiIndia Indian Institute of Information Technology SonepatIndia Department of MedicalOncology Rajiv Gandhi Cancer Institute and Research CentreNew DelhiIndia

Background:The incidence of prostate cancer is increasing worldwide.A significant proportion of patients developmetastatic disease and are initially prescribed androgen deprivation therapy(ADT).However,subsequent sequences of treatments in real-world settings that may improve overall survival remain an area of active *** and methods:Data were collected from 384 patients presenting with de novo metastatic prostate cancer from 2011 to 2015 at a tertiary cancer *** were categorized into surviving(n=232)and deceased(n=152)groups at the end of 3 *** sequence pattern mining techniques(Generalized sequential Pattern Mining and sequential Pattern Discovery using Equivalence Classes)were applied to determine the exact order of the most frequent sets of treatments in each ***:Degarelix,as the initial form of ADT,was uniquely in the surviving *** sequence of ADT followed by abiraterone and docetaxel was uniquely associated with a higher 3-year overall *** followed by fosfestrol was found to have a unique niche among surviving patients with a long duration of response to the initial *** who received chemotherapy followed by radiotherapy and those who received radiotherapy followed by chemotherapy were found more frequently in the deceased ***:We identified unique treatment sequences among surviving and deceased patients at the end of 3 *** should be the preferred formof *** who received ADT followed by abiraterone and chemotherapy showed better *** requiring palliative radiation and chemotherapy in any sequence were significantlymore frequent in the deceased group,identifying the need to offer such patients the most efficacious agents and to target them in clinical trial design.

关键词： Hormone therapy Metastatic prostate cancer sequence mining survival

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腹部平片在评估非外伤急诊病人中的作用

国际医学放射学杂志 2008年第A6期31卷 488-488页

作者： Z.s.Kellow M.MacInnes D.Kurzencwyg s.rawal R.Jaffer B.Kovaci-na 赵静 Department of Radiology Royal Victoria HospitalMcGill University687 Pine Ave WMontrealQCCanada H3A 1A1.

目的探讨腹部平片对非外伤急诊病人的诊断作用。方法经专业机构负责人同意,回顾性分析6个月以来非外伤急诊病人的腹部平片和病历记录。

关键词：急诊病人诊断作用腹部平片检查病历记录影像学检查病人数量急诊科医生胃肠道造影导管位置

Effect of Eu3+,Bi3+,and Li+ doping on luminescent property of GdNbO4

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Journal of Rare Earths 2024年第1期42卷 66-75页

作者： s.W.Wi Y.s.Lee Department of Physics and Integrative Institute of Basic sciences Soongsil University

We investigated the emission properties of Eu3+-doped GdNbO4-based oxide phosphors,aiming at improving the Eu3+emission by codoping of Bi3+and Li+.Eu3+singly doped,Eu3+and Bi3+doubly doped,and Eu3+,Bi3+,and Li+triply doped GdNbO4were prepared using a high-temperature solid-state reaction *** red-orange emissions from Eu3+in the singly doped samples are significantly improved by the codoping of Bi3+,mainly due to the energy transfer from Bi3+to Eu3+.The additional codoping of Li+is found to increase the Eu3+emission *** improvement might be attributed to the increase in the photoluminescent quantum yield originating from larger grain sizes and better crystallinity.A detailed analysis of the X-ray diffraction pattern and the asymmetric ratio estimated from the photoluminescence spectra show that the local lattice environment around Eu3+in GdNbO4does not change significantly with the codoping of Bi3+and Li+.Our results indicate that Li+doping is a promising way to improve the emission properties of rare-earth ion-doped GdNbO4phosphors.

关键词： Eu3+ GdNbO4 Codoping of Li+ Photoluminescence sensitizer Rare earths

First evidence for chiral wobbling of triaxial nuclei

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Nuclear science and Techniques 2024年第7期35卷 4-7页

作者： s.Frauendorf Department of Physics and Astronomy University of Notre DameNotre DameIN 46556USA

Chirality(Greek“handiness”)is a property of many com-plex *** molecules exist in two forms,one being the mirror image of the *** for our hands,it is impossible to make the images identical by a suitable *** two forms are called left-handed and *** have the same binding energy,because the electro-magnetic interaction,which holds the molecule together,does not change under a *** properties that are insensitive to the geometry are also the *** different geometry is the reason why the left-handed form turns the polarization plane of transmitted light in one direction by some angle while the right-handed form turns it in the oppo-site direction by the same ***,the geometrical differences between the two species may have other *** two species of the carvon molecule shown in Fig.1 taste quite differently.

关键词： turns Chiral mirror