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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 | 语言学,语言学流派,语言学教育:康奈尔大学语言学系主任约翰·惠特曼(John Whitman)教授访谈录显示文摘一、引言约翰·惠特曼教授,哈佛大学语言学博士(1984年),2006年起担任康奈尔大学语言学系主任,现任《高丽语言学》(Korean Linguistics)主编,日本国立日本语和语言学研究所(National Institute for Japanese Language and Linguistics)所长、名誉教授,法国社会科学高级研究院东亚语言学研究中心(Centre de recherches linguistiques sur l’Asie orientale)兼职教授。约翰·惠特曼教授主要研究语言变异,包括变异范围和预测因子,是广义句法学领域组合性辩论(configurationality debate)的重要参与者。笔者于2019年8月在康奈尔大学短期访问期间对惠特曼教授做了访谈。 | 郑国锋 John Whitman 约翰·惠特曼 | 2020 | 外国语2020，43，5： | 6 |
| 3 | Regressionmodels for evaluating liquefaction probability显示文摘 | Liao S S C Veneziano D Whitman R V | 1988 | Journalof Geotechnical Engineering Division AmericanSociety of Civil Enginees1988，114，4： | 2 |
| 4 | Hemodynamie studies in early isehemic stroke:Serial zranscranial Doppler and magnetic resonance angiography evaluation显示文摘 | Akopov S Whitman GT | 2002 | Stroke2002，33，5： | 1 |
| 5 | A progressive morphological filter for removing nonground measurements from airborne LiDAR data显示文摘 | ZHANG K CHEN S WHITMAN D | 2003 | IEEE Transactions on Geoscience and Remote Sensing2003，41，4： | 1 |
| 6 | Platelet gel: an autologons alternative to fibrin glue with applications in oral and maxillofacial surgey显示文摘 | Whitman DH Berry RL Green DM | 1997 | J oral Maxillofac Surg1997，55，11： | 1 |
| 7 | Lymphoma of bronchus-associated lymphoid tissure 显示文摘 | Lazar EB Whitman GJ Chew FS | 1996 | A JR1996，167，1： | 1 |
| 8 | Reclamation of vacuum pump fluids显示文摘 | Whitman C B | 1987 | Journal of Vacuum Science & Technology1987，5，2： | 1 |
| 9 | Indication of the vertical from moving bases 显示文摘 | Wrigley W Houston F E Whitman H R | 1958 | IRE Transactions on Aero- nautical and Navigational Electronics1958，5，4： | 1 |
| 10 | Utilization of kinesio-textape in patients with shoulder pain or dysfunction:a case series显示文摘 | Frazier S Whitman J Smith M | 2006 | Advanced Healing2006，，： | 1 |
| 11 | A progressive morphological filter for removing nonground measurements from airborne LIDAR data 显示文摘 | Zhang K Chen S C Whitman D | 2003 | Geoscience and Remote Sensing IEEE Transactions on2003，41，4： | 1 |
| 12 | Comparision of three instruments in predicting accidental falls in selected inpatients in a general teaching hospital 显示文摘 | Eagle D J Salama S Whitman D | 1999 | J Gerontol Nurs1999，25，7： | 1 |
| 13 | Developing KH2PO4 and KD2PO4 crystals for the world's most powerful laser 显示文摘 | Yoreo J J D Burnham A K Whitman P K | 2002 | International Materials Reviews2002，47，3： | 1 |
| 14 | Principles of gas absorption 显示文摘 | Lewis W K Whitman W G | 1924 | Industrial and Engineering Chemistry1924，16，： | 1 |
| 15 | Durable hematologic complete response and suppression of HTLV-1 viral load following alemtuzumab in zidovudine/IFN-{alpha}-refractory adult T-cell leukemia显示文摘 | Mone A Puhalla S Whitman S | 2005 | Blood2005，106，10： | 1 |
| 16 | Orientation of Microplitis croceipes (Hymenoptera: Braconidae) to green leaf volatiles: dose-response curves显示文摘 | Whitman D W Eller F J | 1992 | Journal ofChemical Ecology1992，18，10： | 1 |
| 17 | Hurricane-induced beach change derived from airborne laser measurements near Panama City, Florida显示文摘 | William Robertson V Zhang Keqi Whitman Dean | 2007 | Marine Geology2007，237，： | 1 |
| 18 | Parasitic wasps orient to green leaf volatiles显示文摘 | Douglas W. Whitman Fred J. Eller | 1990 | Chemoecology1990，，2： | 1 |
| 19 | A progressive mor- phological filter for removing nonground measurements from airborne LiDAR data 显示文摘 | Zhang K Chen S C Whitman D | 2003 | [EEE Transactions on Geoscience and Remote Sensing2003，41，4： | 1 |
| 20 | High expression levels of the ETS-related gene,ERG,predict adverse outcome and improve molecular risk-based classification of cytogenetically normal acute myeloid leukemia:a Cancer and Leukemia Group B Study显示文摘 | Marcucci G Maharry K Whitman SP | 2007 | J Clin Oncol2007，25，22： | 1 |
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