
Publications: (* indicates undergraduate under my supervision)
- Wang H, Zhang L, Ma XC, Zou JW, Siemann E. In press. The effects of elevated ozone and CO2 on growth and defense of native, exotic and invader trees Journal of Plant Ecology Advance Access doi: 10.1093/jpe/rtw142
- Zhang L. Zou JW, Siemann E.( 2017). Interactive effects of elevated CO2 and nitrogen deposition accelerate litter decomposition cycles of invasive tree (Triadica sebifera) Forest Ecology and Management 385: 189-197
- Zenni RD, Dickie IA, Wingfield MJ, Hirsch H, Crous CJ, Meyerson LA, Burgess TI, Zimmermann TG, Klock MM, Siemann E, Erfmeier A, Aragon R, Moniti L, Le Roux JJ. (2016) Evolutionary dynamics of tree invasions: complementing the unified framework for biological invasions. Annals of Botany Plants. doi:10.1093/aobpla/plw085
- Siemann E, DeWalt SJ, Zou JW, Rogers WE. (2016). An experimental test of the EICA Hypothesis in multiple ranges: invasive populations outperform those from the native range independent of insect herbivore suppression. Annals of Botany Plants doi:10.1093/aobpla/plw087
- Li X. Guo W, Siemann E, Huang W, Ding JQ. (2016) Plant genotypes affect aboveground and belowground herbivore interactions by changing chemical defense. Oecologia 182:1107-1115
- Wang Y, Zhu L, Siemann E, Ding JQ. (2016). Repeated damage by specialist insects suppresses the growth of a high tolerance invasive tree. Biocontrol 61:793-801.
- Carrillo J, Siemann E. (2016). A native plant competitor mediates the impact of above- and belowground damage on an invasive tree. Ecological Applications 26:2060-2071.
- Lu XM, Siemann E, He M, Wei M, Shao X, Ding JQ. (2016) Warming benefits a native plant competing with an invasive congener in the presence of a biocontrol beetle. New Phytologist 211: 1371-1381.
- Deng B, Li B, Zhang L, Ma Y, Zhang W, Li Z, Guo X, Niu D, Siemann E.(2016) Increases in soil CO2 and N2O emissions from restored meadows of Wugong Mountain, China with warming depend on plant species. Journal of Soils and Sediments 16:777-784
- Wang H, Ma XC, Zhang L, Zou JW, Siemann E. (2016) UV-B has larger impacts on invasive populations of Triadica sebifera but ozone impacts do not vary. Journal of Plant Ecology 9:61-68
- Zhang L,Ma XC, Wang H, Liu S, Zou JW, Siemann E. (2016) Soil respiration and litter decomposition rate increased following perennial forbs invasion into an annual grassland. Pedosphere 26:567-576.
- Yang Q, Li B, Siemann E. (2015) The effects of fertilization on plant-soil interactions and salinity tolerance of invasive Triadica sebiferum. Plant & Soil 394:99–107
- Liu G, Siemann E, Gao Y, Peng S. (2015) Nutrient addition amplifies salinity-dependent differences in competitive ability of invasive and native vines. Biological Invasions 17:3479-3490
- Bhattacharjee M, Siemann E. (2015) Low algal diversity systems are a promising method for biodiesel production in wastewater fed open reactors. Algae 30:67-79 [press coverage in more than 50 outlets]
- Lu XM, Siemann E, Shao X, Wei H, Ding JQ.(2015) Effects of warming and nitrogen on above and below-ground herbivory of an exotic invasive plant and its native congener. Biological Invasions 17:2881-2892
- Meza-Lopez MM, Siemann E. (2015) Experimental test of the Invasional Meltdown Hypothesis: an exotic herbivore facilitates a plant invader, but the plant does not reciprocally facilitate the herbivore. Freshwater Biology 60:1475-1482
- Yang Q,Wei S, Shang L, Carrillo J, Gabler CA, Nijjer S, Li B, Siemann E. (2015) Mycorrhizal associations of an invasive tree are enhanced by both genetic and environmental mechanisms. Ecography 38: 1112-1118
- Huang W, Siemann E, Carrillo J, Ding JQ. (2015) Belowground herbivory limits induction of indirect aboveground plant defense to aboveground herbivores. Annals of Botany 115:841-846
- Yang, Q, Li, B, and Siemann, E. (2015) Positive and negative biotic interactions and invasive Triadica sebifera tolerance to salinity: a cross-continent comparative study. Oikos 124:216-224 DOI: 10.1111/oik.01552
- Lu, X, Siemann, E, He, M, Wei, H, Shao, X, and Ding, J. (2015) Climate warming increases biological control agent impact on a non-target species. Ecology Letters 18:48-56 DOI: 10.1111/ele.12391.
- Huang, W, Siemann, E, Xiao, L, Yang, XF, and Ding, JQ. (2014) Species-specific defence responses facilitate conspecifics and inhibit heterospecifics in above-belowground herbivore interactions. Nature Communications 5:4851.
- Zhang, L, Zhang, YJ, Wang, H, Zou, JW, and Siemann, E (2014) Decomposition of Phragmites australis litter retarded by invasive Solidago canadensis in mixtures: an antagonistic non-additive effect. Scientific Reports 4:5488.
- Zhang, L, Wang, H, Zou, JW, Rogers, WE, and Siemann, E (2014) Non-native plant litter enhances soil carbon dioxide emissions in an invaded annual grassland. PLOS ONE 9:e92301.
- Carrillo, J, McDermott, D, and Siemann, E. (2014) Loss of specificity: native but not invasive populations of Triadica sebifera vary in tolerance to different herbivores. Oecologia 174:863-871
- Gu, X, Siemann, E, Zhu, L, Gao, SX, Wang, Y, and Ding, JQ (2014) Invasive plant population and herbivore identity affect latex induction. Ecological Entomology 39:1-9.
- Yang, Q, J Carrillo, HY Jin, L Shang, SM Hovick, S Nijjer, CA Gabler, B Li, and E Siemann. (2013) Plant-soil biota interactions of an invasive species in its native and introduced ranges: Implications for invasion success. Soil Biology & Biochemistry 65:78-85.
- Chen, LY, Tiu, CJ, Peng, SL, and Siemann, E (2013) Conspecific plasticity and invasion: Invasive populations of Chinese Tallow (Triadica sebifera) have performance advantage over native populations only in low soil salinity. PLOS ONE 8:e74961.
- Huang W., E. Siemann, X. Yang, G.S. Wheeler and J. Ding. (2013) Facilitation and inhibition: changes in plant nitrogen and secondary metabolites mediate interactions between above- and belowground herbivores. Proceedings of the Royal Society B 280:20131318. doi: 10.1098/rspb.2013.1318.
- Zhang, L, Zhang, YJ, Wang, H, Zou, JW, and Siemann, E (2013) Chinese Tallow Trees (Triadica sebifera) from the invasive range outperform those from the native range with an active soil community or phosphorus fertilization. PLOS ONE 8:e74233
- Lu X, Siemann E, Shao X, Wei H, Ding J. (2013) Climate warming affects biological invasions by shifting interactions of plants and herbivores. Glob Chang Biol. 219(8):2339-47. doi: 10.1111/gcb.12244.
- Gabler CA, and E. Siemann (2013) Timing of favorable conditions, competition and fertility interact to govern recruitment of invasive Chinese tallow tree in stressful environments. PLoS ONE 8(8): e71446. doi:10.1371/journal.pone.0071446
- Wang Y, Carrillo J, Siemann E, Wheeler GS, Zhu L, Gu X,and J. Ding. (2013) Specificity of extrafloral nectar induction by herbivores differs among native and invasive populations of tallow tree. Ann Bot. 112(4):751-6. doi: 10.1093/aob/mct129.
- Horn KC, Eubanks MD,and E. Siemann.(2013) The effect of diet and opponentsSize on aggressive interactions involving Caribbean crazy ants (Nylanderia fulva). PLoS ONE 8(6): e66912. doi:10.1371/journal.pone.0066912
- Gabler, CA and E. Siemann. 2013. Rapid ontogenetic niche expansions in invasive Chinese tallow tree permit establishment in unfavourable but variable environments and can be exploited to streamline restoration. Journal of Applied Ecology 50: 748-756 doi: 10..1111/1365-2664.12071.
- Huang, W. Carrillo, J., Ding, J., and E. Siemann. 2012. Invader partitions ecological and evolutionary responses to above- and belowground herbivory. Ecology 93:2343-2352. http://dx.doi.org/10.1890/11-1964.1
- Wundrow, EJ*, Carrillo, J, Gabler, CA, Horn, KC, and E Siemann 2012. Facilitation and competition among invasive plants: A field experiment with alligatorweed and water hyacinth. PLOS ONE 7(10):e48444 DOI: 10.1371/journal.pone.0048444
- Gabler, C.A. and E. Siemann. 2012. Environmental variability and ontogenetic niche shifts in exotic plants may govern reinvasion pressure in restorations of invaded ecosystems. Restoration Ecology 20(5):545-550
- Carrillo, J., Wang, Y., Ding, J., and E. Siemann. 2012. Induction of extrafloral nectar depends on herbivore type in invasive and native Chinese tallow seedlings. Basic and Applied Ecology, 13: 449-457. http://dx.doi.org/10.1016/j.baae.2012.07.006
- Park, I, DeWalt, SJ, Siemann, E, and Rogers, WE. 2012. Differences in cold hardiness between introduced populations of an invasive tree. Biological Invasions 14:2029-2038.
- Huang, W., Carrillo, J., Ding J. and E. Siemann. 2012. Interactive effects of herbivory and competition intensity determine invasive plant performance. Oecologia, 170: 373-382. doi: 10.1007/s00442-012-2328-6
- Wang, Y, Siemann, E, Wheeler, GS, Zhu, L, Gu, X, and Ding, JQ. 2012. Genetic variation in anti-herbivore chemical defences in an invasive plant. Journal of Ecology 100:894-904. DOI: 10.1111/j.1365-2745.2012.01980.x
- Chamberlain, S., Hovick,S., Dibble, C., Van Allen, B., Maitner, B., Ahern, J., Bell-Dereske, L., Rasmussen, N., Carillo, J., Meza-Lope, M., Roy, C., Siemann, E., Lajeunesse, M., and Whitney, K.D. 2012. Does phylogeny matter? Assessing the impact of phylogenetic information in ecological meta-analysis. Ecology Letters 15: 627-636.
- Carrillo, J, Wang, Y, Ding, J, Klootwyk, K, and Siemann, E 2012. Decreased indirect defense in the invasive tree, Triadica sebifera. Plant Ecology 213:945-954. DOI: 10.1007/s11258-012-0055-z .
- Carrillo, J., Danielson-Francois, A., Siemann, E., and Meffert, L. 2012. Male-biased sex ratio increases female egg laying and fitness in the housefly, Musca domestica. Ethology 30:247-252. DOI: 10.1007/s10164-011-0317-6
- DeWalt SJ, Siemann E, and Rogers, WE. 2011. Geographic distribution of genetic variation among native and introduced populations of Chinese tallow tree, Triadica Sebifera (Euphorbiaceae). American Journal of Botany 98:1128-1138.
- Wang Y, Huang W, Siemann E, Zou JW, Wheeler GS, Carrillo J, and Ding JQ. 2011. Lower resistance and higher tolerance of invasive host plants: biocontrol agents reach high densities but exert weak control. Ecological Applications 21:729-738.
- Hartley MK, Rogers WE, Siemann E. 2010. Comparisons of arthropod assemblages on an invasive and native trees: abundance, diversity and damage. Arthropod-Plant Interactions 4:237-245.
- Zhang, W, Hendrix, P, Snyder, B, Molina, M, Li, J, Rao, X, Siemann, E, and Fu, S. 2010. Dietary flexibility aids Asian earthworm invasion in North American forests. Ecology 91:2070-2079.
- Huang, W, Siemann, E, Wheeler, GS, Zou, J, Carrillo, J, and Ding, J. 2010. Resource allocation to defence and growth are driven by different responses to generalist and specialist herbivory in an invasive plant. J Ecology 98:1157-1167.
- Nijjer, S., W.E. Rogers, and E. Siemann. 2010. Impacts of fertilization on mycorrhizal allocation and effectiveness in Western Gulf Coast grasslands. American Midland Naturalist.163: 124-133.
- Siemann, E., J Carrillo, C. Gabler, R. Zipp, and W.E. Rogers.2009. Experimental test of the impacts of feral hogs on forest dynamics and processes in the southeastern US. Forest Ecology and Management. 258: 546-553.
- Zou, J., Rogers, W.E., and Siemann, E. 2009. Plasticity of Sapium sebiferum seedling growth to light and water resources: Inter- and intraspecific comparisons. Basic and Applied Ecology 10:79-88.
- Zou, J., Siemann, E. and Rogers, W.E.,. 2008. Decreased resistance and increased tolerance to native herbivores of the invasive plant Sapium sebiferum. Ecography 31:663-671.
- Rua, MA, Nijjer, S, Johnson, A, Rogers, WE, and Siemann, E. 2008. Experimental approaches to test allelopathy: A case study using the invader Sapium sebiferum. Allelopathy Journal 22:1-13.
- *Horn, K.C., Johnson,*S.D., Boles, *K.M. , Moore,*A., Siemann,E., and Gabler, C.A. 2008. Factors affecting hatching success of golden apple snail eggs: effects of water immersion and cannibalism. Wetlands 28:544-549.
- Zou, J., Rogers, W.E., and Siemann, E. . 2008. Increased competitive ability and herbivory tolerance of the invasive plant Sapium sebiferum. Biological Invasions 10:291-302.
- Nijjer, S., Rogers, W.E., Lee,C.A., and Siemann, E.. 2008. The effects of soil biota and fertilization on the success of Sapium sebiferum Applied Soil Ecology 38:1-11.
- Siemann, E, Rogers, W.E., and Grace, J.B. 2007. Effects of nutrient loading and extreme rainfall events on
coastal tallgrass prairies: invasion intensity, vegetation
responses, and carbon and nitrogen distribution. Global Change Biology 13:2184-2192.
- Nijjer, S., Rogers, W.E., and Siemann, E. 2007 Negative plant-soil feedbacks reduce the long-term success of an invasive tree. Proc R Soc B 274:2621-2627.
- \Siemann, E and Rogers, W. E. 2007. The role of soil resources in an exotic tree invasion in Texas coastal prairie. J Ecology 95:689-697.
- Zou, J., Rogers, W. E., and Siemann, E. 2007 Differences in morphological and physiological traits between native and invasive populations of Sapium sebiferum. Functional Ecology 21:721-730.
- Hartley, M.K., Rogers, W.E., Siemann, E., and Grace, J. 2007. Responses of prairie arthropod communities to fire and fertilizer: balancing plant and arthropod conservation. Am. Midl. Nat. 157:92–105.
- Siemann E, Rogers WE, and Dewalt SJ. 2006. Rapid adaptation of insect herbivores to an invasive plant. Proc R Soc B 273:2763-2769.
- Zou J, Rogers WE, Dewalt SJ, Siemann E. 2006. The effect of Chinese tallow tree (Sapium sebiferum) ecotype on soil-plant system carbon and nitrogen processes. Oecologia. 150: 272-281.
- Dewalt SJ, Siemann E, and Rogers WE. 2006. PRIMER NOTE: Microsatellite markers for an invasive tetraploid tree, Chinese tallow (Triadica sebifera). Molecular Ecology Notes 6: 505-507
- Donahue, C, Rogers WE and Siemann E . 2006. Restoring an invaded prairie by mulching live Sapium sebiferum (chinese tallow trees): Effects of mulch on sapium seed germination. Natural Areas J 26:244-253.
- Rogers WE and Siemann E . 2006. Recruitment Limitation, Seedling Performance and Persistence of Exotic Tree Monocultures. Biological Invasions 8:979-991.
- W.E. Rogers and E. Siemann. 2005. Herbivory Tolerance and Compensatory Differences in Native and Invasive Ecotypes of Chinese Tallow Tree (Sapium sebiferum). Plant Ecology 181: 57-68
- Bossdorf O, Auge H, Lafuma L, Rogers WE, Siemann E, Prati D. 2005. Phenotypic and genetic differentiation between native and introduced plant populations. Oecologia. 2005 Jun;144(1):1-11
- *Butterfield, B.J., W.E. Rogers and E. Siemann. 2004. Growth of Chinese tallow tree (Sapium sebiferum) and four native trees along a water gradient. Texas Journal of Science (Big Thicket Science Conference Special Issue)
- Donahue, C., W.E. Rogers and E. Siemann. 2004. Effects of temperature and mulch depth on Chinese tallow tree (Sapium sebiferum) seed germination. Texas Journal of Science (Big Thicket Science Conference Special Issue)
- Nijjer,N, W.E. Rogers and E. Siemann. 2004. The effect of mycorrhizae on the growth of five native tree species and the invasive Chinese Tallow Tree (Sapium sebiferum). Texas Journal of Science (Big Thicket Science Conference Special Issue)
- Hartley, M.K., S.J. DeWalt, W.E. Rogers and E. Siemann. 2004. Characterization of arthropod assemblage supported by the Chinese Tallow tree (Sapium sebiferum). Texas Journal of Science (Big Thicket Science Conference Special Issue)
- Weisser, W. and E. Siemann. 2004. The various effects of insects on ecosystem functioning. Chapter 1 in Weisser, W.W. and E. Siemann (eds). Insects and Ecosystem Function. Ecological Studies Series. Springer-Verlag
- E. Siemann, W.P. Carson, W.E. Rogers and W. Weisser. 2004. Reducing herbivory using insecticides. Ch 15 in Weisser, W.W. and E. Siemann (eds). Insects and Ecosystem Function. Ecological Studies Series. Springer-Verlag.
- Rogers, W.E. and E. Siemann. 2004. The role of insect herbivores in exotic plant invasions: Insights using a combination of methods to enhance or reduce herbivory. Ch 16 in Weisser, W.W. and E. Siemann (eds). Insects and Ecosystem Function. Ecological Studies Series. Springer-Verlag
- Siemann, E. and W. Weisser. 2004. Testing the role of insects for ecosystem functioning. Chapter 18 in Weisser, W.W. and E. Siemann (eds). Insects and Ecosystem Function. Ecological Studies Series. Springer-Verlag
- Weisser, W.W. and E. Siemann (eds). 2004. Insects and Ecosystem Function. Ecological Studies Series. Springer-Verlag.
- Rogers, W.E. and E. Siemann. 2004. Invasive ecotypes tolerate herbivory more effectively than native ecotypes of the Chinese tallow tree Sapium sebiferum. Journal of Applied Ecology 41:561-570.
- *Lankau, R.L., W.E. Rogers and E. Siemann. 2004. Constraints on the utilization of the invasive Chinese Tallow Tree (Sapium sebiferum) by generalist native herbivores in coastal prairies. Ecological Entomology 29:66-75.
- Siemann, E. and W.E. Rogers. 2003. Increased competitive ability of an invasive tree may be limited by an invasive beetle. Ecological Applications 13:1503-1507.
- Siemann, E. and W.E. Rogers. 2003. Changes in light and nitrogen availability under pioneer trees may facilitate tree invasions of grasslands. Journal of Ecology 91:923-931.
- Siemann, E. and W. E. Rogers. 2003. Herbivory, disease, recruitment limitation and success of alien and native tree species. Ecology 84:1489-1505
- Siemann, E. and W.E. Rogers. 2003. Reduced resistance of invasive varieties of the alien tree Sapium sebiferum to a generalist herbivore. Oecologia 135:451-457.
- Rogers, W.E., E. Siemann and *R.A. Lankau. 2003. Damage induced production of extrafloral nectaries in native and introduced seedlings of Chinese tallow tree (Sapium sebiferum) American Midland Naturalist 149:413-417.
- Rogers, W.E. and E. Siemann. 2003. Effects of simulated herbivory and resources on Chinese tallow tree (Sapium sebiferum, Euphorbiaceae) invasion of native coastal prairie. American Journal of Botany 90:241-247.
- Fagan, W.F., E. Siemann, R.F. Denno, C. Mitter, A.F. Huberty, H.A. Woods and J.J. Elser. 2002. Nitrogen content variation in insects: implications for trophic complexity and species diversification. American Naturalist 160:784-802.
- Rogers, W.E. and E. Siemann. 2002. Effects of simulated herbivory and resource availability on native and invasive exotic tree seedlings Basic and Applied Ecology 3:297-307.
- *Nijjer, S., *R.A. Lankau, W.E. Rogers and E. Siemann. 2002. Effects of temperature and light on Chinese Tallow (Sapium sebiferum) and Texas Sugarberry (Celtis laevigata) seed germination. Texas Journal of Science 54:63-68.
- Siemann, E. and W.E. Rogers. 2001. Genetic differences in growth of an invasive tree species. Ecology Letters 4:514-518. (highlighted in Science Daily, Environmental News Service, The Guardian, Houston Business News) pdf
- Twilley, R.B., E.J. Barron, H.L. Gholz, M.A. Harwell, R.L. Miller, D.J. Reed, J.B. Rose, E. H. Siemann, R.G. Wetzel, R.J. Zimmerman. 2001. Confronting climate change in the Gulf region: prospects for sustaining our ecological heritage. Union of Concerned Scientists, Cambridge, Massachusetts, and Ecological Society of America, Washington, D.C., 100 p. (highlighted in Houston Chronicle, New Orleans Times-Picayune, Tampa Tribune, St. Petersburg Times, and received regional radio, TV and print coverage) pdf
- Elser, J.J., W.F. Fagan, R.F. Denno, D.R. Dobberfuhl, A. Folarin, A. Huberty, S. Interlandi, S.S. Kilham, E. McCauley, K. L. Schulz, E.H. Siemann, and R.W. Sterner. 2000. Nutritional constraints in terrestrial and freshwater food webs. Nature 408:578-580. (Highlighted in Science Daily) pdf
- *Keay, J., W.E. Rogers, *R. Lankau, and E. Siemann. 2000. The role of allelopathy in the invasion of the Chinese Tallow Tree (Sapium sebiferum). Texas Journal of Science 52S: 57-64. pdf
- Rogers, W.E., *S. Nijjer, *C.L. Smith, and E. Siemann. 2000. Effects of resources and herbivory on leaf demography and physiology on Chinese Tallow (Sapium sebiferum) Texas Journal of Science 52S:43-56. pdf
- Symstad, A. J., E. Siemann and J. Haarstad. 2000. An experimental test of the effect of plant functional group diversity on arthropod diversity. Oikos 89:243-253. pdf
- Siemann, E. and J. H. Brown. 1999. Gaps in mammalian body size distributions reexamined Ecology 80:2788-2792. pdf
- Siemann, E., J. Haarstad and D. Tilman. 1999. Dynamics of arthropod and plant diversity during old field succession. Ecography 22:406-414. pdf
- Siemann, E., D. Tilman and J. Haarstad. 1999. Abundance, diversity and body size: patterns from a grassland arthropod community. Journal of Animal Ecology 68:824-835. pdf
- Knops, J. M. H., D. Tilman, N. M. Haddad, S. Naeem, C. E. Mitchell, J. H. Haarstad, M. E. Ritchie, K. M. Howe, P. B. Reich, E. Siemann, and J. Groth. 1999. Effects of plant species richness on invasions dynamics, disease outbreaks , insects abundance and diversity. Ecology Letters 2:286-293. pdf
- Siemann, E., D. Tilman, J. Haarstad and M. Ritchie. 1998. Experimental tests of the dependence of arthropod diversity on plant diversity. American Naturalist 152:740-752. pdf
- Siemann, E. 1998. Experimental tests of the effects of plant productivity and plant diversity on grassland arthropod diversity. Ecology 79:2057-2070. pdf
- *Larson, J. and E. Siemann. 1998. Legumes may be symbiont limited during old field succession. American Midland Naturalist 140:90-95. pdf
- Siemann, E.H. 1997. Controls of the diversity and structure of grassland insect communities. PhD. dissertation, University of Minnesota.
- Siemann, E., J. Haarstad and D. Tilman. 1997. Short-term and long-term effects of burning on oak savanna arthropods. American Midland Naturalist 137:349-361 pdf
- Tilman, D, J. Knops, D. Wedin, P. Reich, M. Ritchie and E. Siemann. 1997. Functional diversity and composition simultaneously influence ecosystem processes. Science 277: 1300-1302. (highlighted in Perspectives by Grime, Science Daily and other media) pdf
- Tilman,D., S. Naeem, J. Knops, P. Reich, E. Siemann, D. Wedin, M. Ritchie and J. Lawton. 1997. Biodiversity and ecosystem properties. Science 278:1865-1866. pdf
- Siemann, E., D. Tilman and J. Haarstad. 1996. Insect species diversity, abundance and body size relationships. Nature 380:704-706. (highlighted in News and Views by Nee and Lawton, highlighted in The Sciences, April 1997) pdf
- Siemann, E.H. and L.L. Creasy. 1992. Concentration of the phytoalexin resveratrol in wine. American Journal of Enology and Viticulture 43(1):49-52. (highlighted in NY Times, Wall St. Journal, Discover [top 20 scientific advances of 1992] and many other publications)