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| 1 | The leaf size/number trade-off in herbaceous angiosperms显示文摘Aims In this study,we examined the extent to which between-species leaf size variation relates to variation in the intensity of leaf production in herbaceous angiosperms.Leaf size variation has been most commonly interpreted in terms of biomechanical constraints(e.g.affected by plant size limitations)or in terms of direct adaptation associated with leaf size effects in optimizing important physiological functions of individual leaves along environmental gradients(e.g.involving temperature and moisture).An additional interpretation is explored here,where adaptation may be more directly associated with the number of leaves produced and where relatively small leaf size then results as a trade-off of high‘leafing intensity’—i.e.number of leaves produced per unit plant body size.Methods The relationships between mean individual leaf mass,number of leaves and plant body size were examined for 127 species of herbaceous angiosperms collected from natural populations in southern Ontario,Canada.Important Findings In all,88%of the variation in mean individual leaf mass across species,spanning four orders of magnitude,is accounted for by a negative isometric(proportional)trade-off relationship with leafing intensity.These results parallel those reported in recent studies of woody species.Because each leaf is normally associated with an axillary bud or meristem,having a high leafing intensity is equivalent to having a greater number of meristems per unit body size—i.e.a larger‘bud bank’.According to the‘leafing intensity premium’hypothesis,because an axillary meristem represents the potential to produce either a new shoot or a reproductive structure,high leafing intensity should confer greater architectural and/or reproductive plasticity(with relatively small leaf size required as a trade-off).This greater plasticity,we suggest,should be especially important for smaller species since they are likely to suffer greater suppression of growth and reproduction from competition within multi-species vegetation.Accordingly,we tested and found support for the prediction that smaller species have not just smaller leaves generally but also higher leafing intensities,thus conferring larger bud banks,i.e.more meristems per unit plant body size. | Thea Whitman Lonnie W.Aarssen | 2010 | Journal of Plant Ecology2010，3，1： | 24 |
| 2 | 喜马拉雅山脉西段纳木那尼冰川正在强烈萎缩显示文摘2004年和2006年对青藏高原西南部野外考察结果表明,喜马拉雅山脉西段的纳木那尼冰川正在强烈萎缩.在过去几十年内,许多支冰川已经和纳木那尼主冰川分离,冰川末端形成大量不连续的冰塔林,冰川末端在1976—2006年平均退缩速度为5 m.a-1左右,2004—2006年后退速度达到7.8m.a-1,表现出近期加速后退态势.考察发现,冰川表面由于强烈消融而形成数量众多的融化坑,冰川表面强烈减薄,2004—2006年期间冰川冰舌段海拔5 800 m处冰体厚度减薄率为1.42 m.a-1,在海拔6 050 m冰川大平台处为0.67 m.a-1.冰川物质损耗严重,利用现有花杆资料计算2004—2006年年均冰川物质平衡为-685 mm水当量.邻近纳木那尼冰川的普兰县气象站观测资料表明,近30 a来气温呈快速上升趋势,而降水量急剧减少,气候暖干是造成纳木那尼冰川强烈亏损的主要原因.如果近期气候暖干态势持续加剧,必然导致该区冰川更加强烈的物质损耗,冰川萎缩速度将进一步加快. | 姚檀栋 蒲健辰 田立德 杨威 段克勤 叶庆华 Lonnie G.Thompson | 2007 | 冰川冻土2007，29，4： | 23 |
| 3 | 青藏高原冰芯过去100年δ^(18)O记录与温度变化显示文摘以羌塘高原普若岗日冰原钻取的213m冰芯中记录为基础,研究了过去100年来δ18O变化所反映的这一地区的温度变化.结合已获取的青藏高原南部的达索普冰芯、西北部的古里雅冰芯和东北部的敦德冰芯,综合研究了青藏高原温度变化的区域差异.结果表明,青藏高原不同地区冰芯中δ18O变化各有特点,特别是南、北差异和东、西差异十分明显.但4根冰芯记录均反映出过去100年来δ18O增加的趋势,说明过去100年来青藏高原在不断变暖.将δ18O记录所反映的青藏高原温度变化、青藏高原气象记录的温度变化同北半球温度变化比较研究发现,这些记录所反映的过去100年总体变暖趋势是一致的. | 姚檀栋 郭学军 Lonnie Thompson 段克勤 王宁练 蒲建辰 徐柏青 杨晓新 孙维贞 | 2006 | 中国科学(D辑)2006，36，1： | 21 |
| 4 | Bivariate Wavelet Analysis of Asia Monsoon and ENSO显示文摘This paper employs some recently developed bivariate wavelet analysis techniques to study the correlation between Asia monsoon and E1 Nino southern oscillation (ENSO).Various energy spectral densities are defined for waveiel transforms,analogous to those used in conventional Fourier analysis.Some comparisons are made by applying both wavelet and Fourier spectral methods (o the data.The wavelet analysis shows evidence of some relationship between Asia monsoon and ENSO,which the Fourier analysis resolves poorly.Correlation on several time scales,ranging from 2-4 years,11 years,and 22 years,become apparent with the wavelet cross-spectrum.Finally,the warelet cross-transform provides time localization of the distinctive features within the data record. | Lonnie Hudgins | 1996 | Advances in Atmospheric Sciences1996，13，3： | 21 |
| 5 | δ^(18)O record and temperature change over the past 100 years in ice cores on the Tibetan Plateau显示文摘The 213 m ice core from the Puruogangri Ice Field on the Tibetan Plateau facilitates the study of the regional temperature changes with its δ18O record of the past 100 years. Here we combine information from this core with that from the Dasuopu ice core (from the southern Tibetan Plateau), the Guliya ice core (from the northwestern Plateau) and the Dunde ice core (from the northeastern Plateau) to learn about the regional differences in temperature change across the Tibetan Plateau. Theδ18O changes vary with region on the Plateau, the variations being especially large between South and North and between East and West. Moreover, these four ice cores present increasing δ18O trends, indicating warming on the Tibetan Plateau over the past 100 years. A comparative study of Northern Hemisphere (NH) temperature changes, the δ18O-reflected temperature changes on the Plateau, and available meteorological records show consistent trends in overall warming during the past 100 years. | Lonnie Thompson | 2006 | Science China Earth Sciences2006，49，1： | 14 |
| 6 | Multi-scale phylogenetic structure in coastal dune plant communities across the globe显示文摘Aims Studies integrating phylogenetic history and large-scale community assembly are few,and many questions remain unanswered.Here,we use a global coastal dune plant data set to uncover the important factors in community assembly across scales from the local filtering processes to the global long-term diversification and dispersal dynamics.Coastal dune plant communities occur worldwide under a wide range of climatic and geologic conditions as well as in all biogeographic regions.However,global patterns in the phylogenetic composition of coastal dune plant communities have not previously been studied.Methods The data set comprised vegetation data from 18463 plots in New Zealand,South Africa,South America,North America and Europe.The phylogenetic tree comprised 2241 plant species from 149 families.We calculated phylogenetic clustering(Net Relatedness Index,NRI,and Nearest Taxon Index,NTI)of regional dune floras to estimate the amount of in situ diversification relative to the global dune species pool and evaluated the relative importance of land and climate barriers for these diversification patterns by geographic analyses of phylogenetic similarity.We then tested whether dune plant communities exhibit similar patterns of phylogenetic structure within regions.Finally,we calculated NRI for local communities relative to the regional species pool and tested for an association with functional traits(plant height and seed mass)thought to vary along sea–inland gradients.Important Findings Regional species pools were phylogenetically clustered relative to the global pool,indicating regional diversification.NTI showed stronger clustering than NRI pointing to the importance of especially recent diversifications within regions.The species pools grouped phylogenetically into two clusters on either side of the tropics suggesting greater dispersal rates within hemispheres than between hemispheres.Local NRI plot values confirmed that most communities were also phylogenetically clustered within regions.NRI values decreased with increasing plant height and seed mass,indicating greater phylogenetic clustering in communities with short maximum height and good dispersers prone to wind and tidal disturbance as well as salt spray,consistent with environmental filtering along sea–inland gradients.Height and seed mass both showed significant phylogenetic signal,and NRI tended to correlate negatively with both at the plot level.Low NRI plots tended to represent coastal scrub and forest,whereas high NRI plots tended to represent herb-dominated vegetation.We conclude that regional diversification processes play a role in dune plant community assembly,with convergence in local phylogenetic community structure and local variation in community structure probably reflecting consistent coastal-inland gradients.Our study contributes to a better understanding of the globally distributed dynamic coastal ecosystems and the structuring factors working on dune plant communities across spatial scales and regions. | Ane Kirstine Brunbjerg Jeannine Cavender-Bares Wolf L.Eiserhardt Rasmus Ejrnæs Lonnie W.Aarssen Hannah L.Buckley Estelle Forey Florian Jansen Jens Kattge Cynthia Lane Roy A.Lubke Angela T.Moles Ana Laura Monserrat Robert K.Peet Julissa Roncal Louise Wootton Jens-Christian Svenning | 2014 | Journal of Plant Ecology2014，7，2： | 9 |
| 7 | Climatic variations since the Little Ice Age recorded in the Guliya Ice Core显示文摘The climatic variations since the Little Ice Age recorded in the Guliya Ice Core are discussed based on glacial δ18O and accumulation records in the Guliya Ice Core. Several obvious climate fluctuation events since 1570 can be observed according to the records. In the past 400 years, the 17th and 19th centuries are relatively cool periods with less precipitation, and the 18th and 20th centuries are relatively warm periods with high precipitation. The study has also revealed the close relationship between temperature and precipitation on the plateau. Warming corresponds to high precipitation and cooling corresponds to less precipitation, which is related with the influence of monsoon on this region. | 姚檀栋 焦克勤 田立德 杨志红 施维林 Lonnie G. Thompson | 1996 | Science China Earth Sciences1996，39，6： | 9 |
| 8 | HBV细胞毒性T细胞抗原表位单链三聚体在真核细胞中的表达及其腺病毒载体的构建显示文摘目的:构建乙型肝炎病毒表面抗原细胞毒性T细胞抗原表位单链三聚体(HBsAg-SCT)真核表达载体,在真核细胞293T中表达,并构建含HBsAg-SCT的腺病毒载体。方法:合成H-2Ld限制的HBsAg细胞毒性T细胞表位寡核苷酸,与H-2Ld分子融合,构建含HBsAg-SCT的真核表达载体,并转染293T细胞,采用流式细胞技术观察HB-sAg-SCT在细胞表面的表达。将HBsAg-SCT亚克隆到腺病毒载体,转染293A细胞,包装产生携带HBsAg-SCT的重组腺病毒。结果:成功构建了HBsAg-SCT真核表达载体,并在真核细胞中表达。利用重组腺病毒载体制备出高滴度的重组腺病毒。结论:含HBsAg-SCT的真核表达载体能够在真核细胞表面有效表达,获得含HBsAg-SCT的重组腺病毒,为研究HBsAg-SCT免疫治疗HBV感染打下基础。 | 周伯平 张红梅 陈心春 黄瑛 Lybarger Lonnie 李美忠 聂广 乐晓华 王火生 袁静 | 2007 | 中西医结合肝病杂志2007，17，1： | 3 |
| 9 | Competition and body size in plants:the between-species tradeoff for maximum potential versus minimum reproductive threshold size显示文摘Aims According to traditional theory,superior competitive ability in plants generally requires relatively large plant body size.Yet even within the most crowded vegetation,most resident species are relatively small;species size distributions are right-skewed at virtually every scale.We examine a potential explanation for this paradox:small species coexist with and outnumber large species because they have greater‘reproductive economy’,i.e.they are better equipped—and hence more likely—to produce offspring despite severe size suppression from intense competition.Methods Randomly placed plots within old-field vegetation were surveyed across the growing season.Within each plot,the largest(MAX)and smallest(MIN)reproductive individuals of each resident species were collected for above-ground dry mass measurement.We tested three hypotheses:(i)smaller resident species(with smaller MAX size)have generally smaller reproductive threshold sizes;(ii)smaller resident species have greater‘reproductive economy’,i.e.a smaller MIN relative to MAX reproductive plant size;and(iii)MIN size predicts plot occupancy(species abundance within the community)better than MAX size.Important Findings The results supported the first and third,but not the second hypothesis.However,we could not reject the hypothesis that smaller species have greater reproductive economy,as it was not possible to record data for the largest potential plant size for each species—since even the largest(MAX)plants collected from our sampled plots were subjected to competition from neighbours under these natural field conditions.Importantly,contrary to conventional competition theory,more successful species(in terms of greater plot occupancy)had smaller minimum not larger(or smaller)maximum reproductive sizes.These results suggest that a small reproductive threshold size,commonly associated with relatively small potential body size,is generally more effective in transmitting genes into future generations when selection from neighbourhood crowding/competition is intense—at least within natural old-field vegetation.Accordingly,we propose a simple conceptual model that represents the basis for a fundamental paradigm shift in the predicted selection effects of crowding/competition on plant body size evolution. | Amanda J.Tracey Lonnie W.Aarssen | 2011 | Journal of Plant Ecology2011，4，3： | 3 |
| 10 | Big plants--do they limit species coexistence?显示文摘Aims According to conventional theory,larger plant species are likely to inflict more intense competition on other(smaller)species.We tested a deducible prediction from this:that a larger species should generally be expected to impose greater limits on the number of species that can coexist with it.Methods Species richness was sampled under plant canopies for a selection of woody species(‘host’species)that display a wide range of adult sizes(from small shrubs to large trees),growing within natural vegetation of the Interior Douglas-fir zone of southern British Columbia,Canada.These data were compared with species richness levels sampled within randomly placed plots within the host species habitat.Important Findings A prominent host species size effect on species richness was detected but only narrowly at the small end of the species size range.Across most(90%)of the increasing size range of host species,the number of species residing under the host canopy showed no significant decrease relative to the number expected by random assembly,based on species richness within randomly defined equivalent areas within the habitat of the host species.This apparent‘null effect’,we suggest,is explained not because these larger species have no effect on community assembly.We postulate that larger species are indeed likely to be more effective in causing competitive exclusion of some smaller species(as expected from conventional theory),but that any potential limitation effect of this on resident species richness is offset for two reasons:(i)larger species also generate niche spaces that they cannot exploit under their own canopies and so have minimal impact(as competitors)on smaller species that can occupy these niches and(ii)certain other small species—despite small size—have effective competitive abilities under the severe competition that occurs within host neighbourhoods of larger species.These and other recent studies call for re-evaluation of traditional views on the role of plant size in affecting competitive ability and community assembly. | Laura M.Keating Lonnie W.Aarssen | 2009 | Journal of Plant Ecology2009，2，3： | 2 |
| 11 | Leaf size versus leaf numbertradeoffs in dioecious angiosperms显示文摘Aims We explore the possible role of leaf size/number trade-offs for the interpretation of leaf size dimorphism in dioecious plant species.Methods Total above-ground biomass(both male and female)for three herbaceous dioecious species and individual shoots(from both male and female plants)for three woody dioecious species were sampled to record individual leaf dry mass,number of leaves,dry mass of residual above-ground tissue(all remaining non-leaf biomass),number of flowers/inflorescences(for herbaceous species)and number of branches.Important Findings For two out of three woody species and two out of three herbaceous species examined,male plants produced smaller leaves but with higher leafing intensity—i.e.more leaves per unit of supporting(residual)shoot tissue or plant body mass—compared with females.Male and female plants,however,did not differ in shoot or plant body mass or branching intensity.We interpret these results as possible evidence for a dimorphic leaf deployment strategy that promotes both male and female function,respectively.In male plants,capacity as a pollen donor may be favored by selection for a broadly spaced floral display,hence favoring relatively high leafing intensity because this provides more numerous axillary meristems that can be deployed for flowering,thus requiring a relatively small leaf as a trade-off.In one herbaceous species,higher leafing intensity in males was associated with greater flower production than in females.In contrast,in female plants,selection favors a relatively large leaf,we propose,because this promotes greater capacity for localized photosynthate production,thus supporting the locally high energetic cost of axillary fruit and seed development,which in turn requires a relatively low leafing intensity as a trade-off. | Stephanie L.Scott Lonnie W.Aarssen | 2013 | Journal of Plant Ecology2013，6，1： | 2 |
| 12 | Design and Overall perlor- mance of four highly loaded,high-speed,inlet stage for an advanced high-pressure-ratio core compressor显示文摘 | Lonnie Reid Royce D Moore | 1978 | NASA Tech- nical Paper 13371978，，： | 1 |
| 13 | An efficient solver for the high- order accurate time-discontinuous Galerkin ( TDG ) method for second-order hyperbolic systems显示文摘 | Prapot K Lonny L T | 2005 | Finite Elements in Analysis and Design2005，41，： | 1 |
| 14 | CSF xanthine,homovanillic acid,andtheir ratio as biomarkers of Parkinson’s disease显示文摘 | Peter L Lonni S Peggy A | 2011 | Brain Research2011，1408，23： | 1 |
| 15 | Prevalence of spontaneous closure of the ductus arteriosus in neonates at a birth weight of 1000 grams or less 显示文摘 | Josh K Gaynelle H Lonnie R | 2006 | Pediatrics2006，117，： | 1 |
| 16 | Effect of four dental varnishes on the colonization of cariogenic bacteria on exposed sound root surfaces显示文摘 | Balzar-Ekenback S Linder LE Lonnies H | 2000 | Caries Res2000，34，1： | 1 |
| 17 | Development of a scoring system for atrial fibrillation in acute stroke and transient ischemic attack patients: The LADS scoring system显示文摘 | Shaneela Malik William J. Hicks Lonni Schultz Patricia Penstone Jayna Gardner Angelos M. Katramados Andrew N. Russman Panayiotis Mitsias Brian Silver | 2010 | Journal of the Neurological Sciences2010，，： | 1 |
| 18 | Effect of selected aldehydes on the growth and fermentation of ethanologenic Escherichia coli显示文摘 | JESUS Z ALFREDO M LONNIE I | 1999 | Biotechnol Bioeng1999，65，1： | 1 |
| 19 | Ethanol production from dilute acid hydrolysate of rice hulls using genetically engineered Escherichia coli显示文摘 | Mohammed Moniruzzaman Ingram Lonnie O | 1998 | Biotechnology Letters1998，20，10： | 1 |
| 20 | A Prospective Case Series of High-risk Infants who Developed Autism显示文摘 | Susan E. Bryson Lonnie Zwaigenbaum Jessica Brian Wendy Roberts Peter Szatmari Vicki Rombough Catherine McDermott | 2007 | Journal of Autism and Developmental Disorders2007，，1： | 1 |
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