Evan Siemann is a professor in the Biosciences Department at

Rice University William Marsh Rice University, commonly referred to as Rice University, is a Private university, private research university in Houston, Houston, Texas, United States. Established in 1912, the university spans 300 acres. Rice University comp ...

Houston Houston ( ) is the List of cities in Texas by population, most populous city in the U.S. state of Texas and in the Southern United States. Located in Southeast Texas near Galveston Bay and the Gulf of Mexico, it is the county seat, seat of ...

, Texas. He received his AB from

Cornell University Cornell University is a Private university, private Ivy League research university based in Ithaca, New York, United States. The university was co-founded by American philanthropist Ezra Cornell and historian and educator Andrew Dickson W ...

in 1990 and his PhD from the

University of Minnesota The University of Minnesota Twin Cities (historically known as University of Minnesota) is a public university, public Land-grant university, land-grant research university in the Minneapolis–Saint Paul, Twin Cities of Minneapolis and Saint ...

in 1997. The focus of his research has been investigating how local

environmental factor An environmental factor, ecological factor or eco factor is any factor, abiotic or biotic, that influences living organisms. Abiotic factors include ambient temperature, amount of sunlight, air, soil, water and pH of the water soil in which an ...

s (e.g. enemies, resources, disturbance regime and recruitment limitation) interact with post-invasion adaptation to determine the likelihood and severity of

Chinese tallow tree ''Triadica sebifera'' is a tree native to eastern Asia (Chinese 乌桕, wū jiù). It is commonly called Chinese tallow, Chinese tallowtree, Florida aspen, chicken tree, gray popcorn tree, or candleberry tree. The seeds (as well as from those o ...

(''Sapium sebiferum'') invasions into

East Texas East Texas is a broadly defined cultural, geographic, and ecological region in the eastern part of the U.S. state of Texas that consists of approximately 38 counties. It is roughly divided into Northeast Texas, Northeast, Southeast Texas, Sout ...

coastal prairie Coastal prairie may refer to either: * The California coastal prairie, a plant community found along the coasts of California and Oregon * The Western Gulf coastal grasslands The Western Gulf coastal grasslands () are a tropical and subtropical ...

mesic forest In ecology, a mesic habitat is a type of habitat with a well-balanced or moderate supply of moisture throughout the growing season (e.g., a mesic forest, temperate hardwood forest, or dry-mesic prairie). The term derives from the Greek ''mesos'' ...

s, and floodplain forests. The results of this research have been highlighted in ''

Science Daily ''ScienceDaily'' is an American website launched in 1995 that aggregates press releases and publishes lightly edited press releases (a practice called churnalism) about science, similar to Phys.org and EurekAlert!. History The site was f ...

'', Environmental News Service, and The Sciences. He has explored the

ecosystem An ecosystem (or ecological system) is a system formed by Organism, organisms in interaction with their Biophysical environment, environment. The Biotic material, biotic and abiotic components are linked together through nutrient cycles and en ...

level impacts of exotic tree invasions into coastal prairies. His research group is engaged in a number of

applied research Applied science is the application of the scientific method and scientific knowledge to attain practical goals. It includes a broad range of disciplines, such as engineering and medicine. Applied science is often contrasted with basic science, ...

projects related to controlling exotic plant and animal invasions into Texas ecosystems.

Selected publications

*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 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. *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 *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. 2001. Genetic differences in growth of an invasive tree species. Ecology Letters 4:514–518. *Siemann, E. 1998. Experimental tests of the effects of plant productivity and plant diversity on grassland arthropod diversity. Ecology 79:2057–2070. *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. *Siemann, E., D. Tilman and J. Haarstad. 1996. Insect species diversity, abundance and body size relationships. Nature 380:704–706.

References

{{DEFAULTSORT:Siemann, Evan Year of birth missing (living people) Living people University of Minnesota alumni Cornell University alumni Rice University faculty