Travis E. Huxman

Ecology and Evolutionary Biology, University of Arizona, Tucson AZ 85721

huxman@email.arizona.edu

520-621-8220

EDUCATION

B.S. Biology, California State University, San Bernardino 1993

M.S. Biology, California State University, San Bernardino 1996

Ph.D. Biology, University of Nevada, Las Vegas 2000

RESEARCH INTERESTS

I am a broadly trained plant physiological ecologist who is interested in plant evolution and global change. My research asks questions about plant physiological processes in an ecological and evolutionary context, with implications for how organisms work and how ecosystems function. These questions are based in understanding (1) how plants acquire and allocate resources to survival, growth, and reproduction, (2) how global change impacts these processes, and (3) what these changes mean to how ecosystems function. This includes both how past climates have influenced plant evolution and how future climates may alter relationships between plants and their environment. Included in this line of research are other aspects of global changes, such as non-native species invasions. A primary goal of my future research is in trying to understand how climate change may affect population, community and ecosystem processes through changes in individual plants using both experimental and modeling efforts.

EMPLOYMENT HISTORY

Aug 2001 – Present: Assistant Professor, Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, Arizona, 85721-0088

Jan 2000 – July 2001: Postdoctoral Research Associate, Department of Environmental, Population and Organismic Biology, University of Colorado, Boulder, Colorado 80309-0334

Sept 1999-Dec 2000: Research Associate, Department of Biological Sciences, University of Nevada,

Department of Biological Sciences, Las Vegas, NV 89154

Aug 1996-Sept 1999: Graduate Research Assistant, Department of Biological Sciences, University of Nevada,

Department of Biological Sciences, Las Vegas, NV 89154

Sept 1994-June 1996: Teaching Assistant, Biology Department, California State University, San Bernardino,

CA 92407

Jan 1994-June 1996: Adjunct Instructor, Resource Center, Chaffey College, Alta Loma, CA 91737

PERSONAL REFERENCES

Dr. Stanley D. Smith: Professor, Dept of Biological Sciences, University of Nevada, Las Vegas, NV

89154-4004, P: (702) 895-3197, F: (702) 895-3956; ssmith@ccmail.nevada.edu

Dr. Russell K. Monson: Professor, Dept of EPO Biology, University of Colorado, Boulder, CO 80309-0334, P: (303) 492-6319, F: (303) 492-8699; monsonrk@colorado.edu

Dr. Michael E. Loik: Adjunct Professor, Dept of Environmental Studies, University of California, Santa Cruz, CA 95064, P: (831) 459-5785, F: (831) 459-4015; mloik@cats.uscs.edu

Dr. James S. Coleman: VP for Research and Bus Develop, Desert Research Institute, 2215 Raggio Pkwy, Reno, NV 89512-1095, P: (775) 673-7322, F: (775) 673-7485; jcoleman@dri.edu

PEER-REVIEWED PUBLICATIONS

Huxman TE, Smith SD Photosynthesis in an invasive grass and native forb at elevated CO₂ during an El Niño year in the Mojave Desert. Oecologia, 128:193-201.

Huxman TE, Charlet TN, Grant C, Smith SD The effect of parental CO₂ and offspring nutrient environment on initial growth and photosynthesis in an annual grass. International Journal of Plant Sciences, 162:617-623.

Pataki DE, Huxman TE, Jordan DN, Zitzer SF, Coleman JS, Smith SD, Nowak RS, Seemann JR (2000) Water use of Mojave Desert shrubs under elevated CO₂. Global Change Biology 6:889-890.

Hamerlynck EP, Huxman TE, Loik ME, Smith SD (2000) Effects of extreme high temperature, drought and elevated CO₂ on photosynthesis of the Mojave Desert evergreen shrub, Larrea tridentata. Plant Ecology 148:185-195.

Hamerlynck EP, Huxman TE, Smith SD, Nowak RS, Redar S, Loik ME, Jordan DN, Zitzer SR, Coleman JS, Seemann JR (2000) Photosynthetic responses of contrasting Mojave Desert shrub species to elevated CO₂ concentration at the Nevada Desert FACE Facility. Journal of Arid Environments 44:425-436.

Loik ME, Huxman TE, Hamerlynck EP, Smith SD (2000) Low temperature tolerance and cold acclimation for seedlings of three Mojave Desert Yucca species exposed to elevated CO₂. Journal of Arid Environments, 46:43-56.

Smith SD, Huxman TE, Zitzer SF, Charlet TN, Housman DC, Coleman JS, Fenstermaker LK, Seemann JR, Nowak RS (2000) Elevated CO₂ increases productivity and invasive species success in an arid ecosystem. Nature 408:79-82.

Huxman TE, Hamerlynck EP, Smith SD (1999) Reproductive allocation and seed production in Bromus madritensis ssp. rubens at elevated CO_2. Functional Ecology 13:769-777.

Huxman TE, Hamerlynck EP, Loik ME, Smith SD (1998) Gas exchange and chlorophyll fluorescence responses of three southwestern Yucca species to elevated CO₂ and high temperature. Plant, Cell & Environment 21:1275-1283.

Huxman TE, Hamerlynck EP, Moore BD, Smith SD, Jordan DN, Zitzer SF, Nowak RS, Coleman JS, Seemann JR (1998) Photosynthetic down-regulation in Larrea tridentata exposed to elevated atmospheric CO₂: Interaction with drought under glasshouse and field (FACE) exposure. Plant, Cell & Environment 21:1153-1161.

Huxman TE, Hamerlynck EP, Jordan DN, Salsman KL, Smith SD (1998) The effects of parental CO₂ environment on seed quality and subsequent seedling performance in Bromus rubens. Oecologia 114:202-208.

Huxman TE, Loik ME (1997) Reproductive patterns of two varieties of Yucca whipplei (Liliaceae) with different life histories. International Journal of Plant Sciences 78:113-120.

Huxman TE, Huxman KA, Stamer MR (1997) Dispersal characteristics of yucca weevils in a flowering field of Yucca whipplei. Great Basin Naturalist 57:38-43.

Huxman TE, Loik ME (1996) Seeds of Yucca whipplei var. whipplei germinate in the fruit. Southwestern Naturalist 43:318-320.

Huxman TE, Loik ME (1996) Abiotic and biotic inflorescence damage and reproductive strategy in Yucca whipplei. San Bernardino County Museum Association Quarterly 46: 45-48.

NON-PEER REVIEWED PUBLICATIONS

Smtih SD, Huxman TE (2001) Elevated atmospheric CO2 and deserts: Will increasing CO₂ alter deserts and desertification processes? Arid Lands Newsletter Issue # 49.

MANUSCRIPTS IN REVIEW AND PREPARATION

Cleverly JR, Sovocool KA, Huxman TE, Smith SD The effects of heat and drought stresses on competition among Mojave Desert riparian species. Functional Ecology, ACCEPTED PENDING REVISIONS

Monson RK, Turnipseed AA, Sparks JP, Harley PC, Scott-Denton LE, Sparks K, Huxman TE Carbon sequestration in a high-elevation subalpine forest. Global Change Biology. ACCEPTED PENDING REVISIONS

Huxman KA, Huxman TE, Schulte PJ, Neuman DS A potential role of root hydraulic properties in the alleviation of water stress at elevated CO₂ in sunflower. International Journal of Plant Sciences, IN REVIEW.

Huxman TE, Scott-Denton LE, Turnipseed AA, Sparks JP, Harley PC, Sparks KL, Monson RK Temperature as a control over CO₂ fluxes in a high-elevation, subalpine forest. Ecology, IN REVIEW

Nagel JM, Griffin KL, Huxman TE, Smith SD, Coleman JS, Nowak RS Elevated CO2 reduces biomass construction cost in an invasive desert grass, Nature, IN REVIEW

Sparks JP, Huxman TE, Rosenstiel TD, Monson RK Recovery of Photosynthesis from winter stress in Pinus contorta. Plant, Cell and Environment, IN REVIEW

Sparks JP, Turnipseed AA, Harley PC, Huxman TE, Monson RK Carbon dioxide and water vapor fluxes as a function of wind direction and forest community composition in a high-elevation, subalpine forest. Agricultural and Forest Meteorology. IN REVIEW

Sparks JP, Harley PC, Huxman TE, Rosentsiel TD, Monson RK Ecosystem level control on carbon sequestration: spring and fall photosynthetic transitions in a high elevation conifer forest. Ecology, IN PREPARATION

Ellsworth DS, Reich PB, Hendrey GR, Huxman TE, Karnosky D, Koch G, Smith SD Photosynthesis, leaf nitrogen and the CO₂ responses of different plant growth forms across four free-air CO₂ enrichment (FACE) experiments. Global Change Biology, IN PREPARATION

Huxman TE, Charlet TN, Zitzer SF, Smith SD Winter-annual biomass and seed production in a whole-ecosystem atmospheric CO₂ manipulation in the Mojave Desert in contrasting wet and dry years. Ecology, IN PREPARATION.

Smith SD, Huxman TE The functional ecology of Death Valley plants. In: S. Rowland, ed., Death Valley, University of California Press, IN PREPARATION.

ABSTRACTS FROM PRESENTATIONS

Housman D, Huxman T, Smith S (2001) Three years of shrub productivity under natural wet and dry cycles at the Nevada Desert FACE Facility. Annual Meeting, Ecological Society of America, Madison, Wisconsin, August 5-10.

Huxman T, Turnipseed A, Sparks J, Harley P, Scott-Denton L, Sparks K, Monson R (2001) The role of temperature in controlling CO₂ uptake dynamics in a high-elevation subalpine forest. Annual Meeting, Ecological Society of America, Madison, Wisconsin, August 5-10.

Naumburg E. Housman D, Huxman T, Charlet T, Stortz-Lintz D, Smith S (2001) Effect of Free Air CO₂ Enrichment on photosynthesis in Mojave Desert shrubs: Results from three years with differing precipitation regimes. Annual Meeting, Ecological Society of America, Madison, Wisconsin, August 5-10.

Sparks J, Harley P, Turnipseed A, Sparks K, Huxman T, Monson R (2001) Effects of leaf area index and species distribution on ecosystem CO₂ and water fluxes. Annual Meeting, Ecological Society of America, Madison, Wisconsin, August 5-10.

Sparks K, Sparks J, Harley P, Scott-Denton L, Turnipseed A, Monson R, Huxman T (2001) Carbon balance in a high-elevation subalpine forest. Annual Meeting, Ecological Society of America, Madison, Wisconsin, August 5-10.

Zitzer S, Charlet T, Huxman T, Smith S, Nowak R (2001) Interaction of rainfall and elevated CO₂ on population and growth dynamics of native Mojave Desert winter annuals and an exotic annual grass. Annual Meeting, Ecological Society of America, Madison, Wisconsin, August 5-10.

Huxman TE, Smith SD, Loik ME, Seemann JR, Housman D (2000) Photosynthesis and growth in perennial shrubs at elevated CO₂ during contrasting wet and dry years at the Nevada Desert FACE Facility. Annual Meeting, Ecological Society of America, Snowbird, Utah, August 6-10.

Loik ME, Smith SD, Housman DC, Huxman TE (2000) Chlorophyll fluorescence for Mojave Desert plants exposed to elevated CO₂ in wet and dry years. Annual Meeting, Ecological Society of America, Snowbird, Utah, August 6-10.

Huxman TE, Smith SD, Zitzer SF, Housman DC, Pataki DE, Nowak RS, Coleman JS, Seemann JR (1999) Influence of increasing CO₂ on primary production in an intact Mojave Desert ecosystem during contrasting wet and dry years. Great Basin Biological Research Conference, Reno, NV, October 14-16.

Pataki DE, Huxman TE, Jordan DN, Smith SD, Nowak RS, Zitzer SF, Coleman JS, Seemann JR (1999) Plant water relations in a natural Mojave Desert ecosystem during two years of free air CO₂ enrichment. Great Basin Biological Research Conference, Reno NV, October 14-16.

Smith SD, Huxman TE, Zitzer SF, Charlet T, Housman DC, Coleman JS, Nowak RS, Seemann JR (1999) Elevated CO₂ stimulates production of Mojave Desert annuals at the Nevada Desert FACE Facility. Great Basin Biological Research Conference, Reno NV, October 14-16.

Huxman TE, Smith SD (1999) Photosynthesis, water use and growth of a desert annual and ephemeral at the Nevada Desert FACE Facility. Annual Meeting, Ecological Society of America, Spokane, WA, August 8-12.

Smith SD, Huxman TE, Zitzer SF, Charlet T, Grant C (1999) Stimulation of primary production in a Mojave Desert ecosystem by elevated CO₂: a comparison of estimation methods at the Nevada Desert FACE Facility. Annual Meeting, Ecological Society of America, Spokane, WA, August 8-12.

Zitzer SF, Huxman TE, Charlet T, Stortz-Lintz D, Smith SD (1999) Influence of exposure to elevated CO₂ (FACE) on growth and reproduction by winter annuals in an undisturbed Mojave Desert site during a wet year. Annual Meeting, Ecological Society of America, Spokane, WA, August 8-12.

Smith SD, Huxman TE, Nowak RS, Zitzer SF (1999) Responses of a Mojave Desert ecosystem to elevated CO₂: results from the Nevada Desert FACE Facility. Annual Meeting, California Academy of Sciences, Fullerton, CA, April 30.

Huxman TE, Smith SD (1999) Seasonal patterns of photosynthetic enhancement due to increased atmospheric CO₂ in shrubs from the Nevada Desert FACE Facility. 8^th Western Photosynthesis Conference, Pacific Grove, CA, January 7-10.

Loik ME, Huxman TE, Smith SD (1999) Chlorophyll fluorescence for plants exposed to elevated CO₂ in the Mojave Desert. 8^th Western Photosynthesis Conference, Pacific Grove, CA, January 7-10.

Smith SD, Huxman TE (1999) Constraints on photosynthetic enhancement in Larrea tridentata at elevated carbon dioxide. 8^th Western Photosynthesis Conference, Pacific Growve, CA, January 7-10.

Pataki DE, Jordan DN, Zitzer SR, Huxman TE, Defalco LA, Coleman JS (1998) Transpiration and conductance of two Mojave Desert shrub species at the Nevada Desert FACE Facility. Annual Meeting, American Geophysical Union, December.

Hamerlynck EP, Huxman TE, Loik ME, Smith SD (1998) Interactive effects of drought, high temperature and elevated CO₂ on the photosynthesis of the desert evergreen Larrea tridentata. Annual Meeting, Ecological Society of America, Baltimore, MD August 2-6.

Huxman TE, Hamerlynck EP, Loik ME, Smith SD (1998) Gas exchange responses of Yucca species to elevated CO₂ and high temperature. Annual Meeting, Ecological Society of America, Baltimore, MD August 2-6.

Smith SD, Huxman TE, Hamerlynck EP, Cleverly JR (1998) Consequences of photosynthetic down-regulation to elevated CO₂ in a Mojave Desert shrub system: an ecosystem modeling approach. Annual Meeting, Ecological Society of America, Baltimore, MD August 2-6.

Huxman TE, Hamerlynck EP, Loik ME, Smith SD (1998) Contrasting Mojave Desert species responses to elevated CO₂ and extreme high temperature. Plant Biology ’98, American Society of Plant Physiologists, Madison, WI, June 27^th –July 1st.

Huxman TE, Hamerlynck EP, Shaulis L, Jordan DN, Smith SD, Nowak RS, Seemann JR (1997) Gas exchange responses of Larrea tridentata to elevated CO₂: A comparison of field (FACE) and greenhouse results. 3^rd International IGBP-GCTE Workshop, Durham, North Carolina, October 10-13.

Huxman TE, Hamerlynck EP, Jordan DN, Smith SD (1997) Growth rates and parental CO₂ environment for Bromus rubens seedlings. Annual Meeting, Ecological Society of America, Albuquerque, NM, August 10-14.

Huxman TE, Hamerlynck EP, Jordan DN, Neuman DS, Smith SD (1997) Photosynthesis and leaf nutrition in Bromus rubens seedlings in elevated CO₂. Plant Biology ‘97, American Society of Plant Physiologists, Vancouver, BC, August 1-5.

Huxman TE, Hamerlynck EP, Jordan DN, Salsman KS, Smith SD (1997) Effects of parental CO₂ environment on seed quality and seedling performance in Bromus rubens. Annual Meeting, Arizona, Nevada Academy of Science, Las Vegas, NV, April.

Huxman TE, Loik ME (1996) Life history trade-offs in reproduction for two varieties of Yucca whipplei. Annual Meeting of the Ecological Society of America, Providence, RI, August 10-14.

INVITED SEMINARS

Feb. 28^th, 2000 University of Utah, Department of Biology, “Contrasting responses of Mojave Desert vegetation to elevated CO₂ in a whole-ecosystem manipulation”

Nov. 10^th, 2000 California State University, San Bernardino, Department of Biology, “Native and invasive species responses to a whole-ecosystem climate change manipulation in the Mojave Desert”

Jan. 15^th, 2001 University of Arizona, Tucson, “Plants and elevated CO₂: beyond a simple growth response.”

Feb 3^rd, 2001 Utah State University, Rangeland Resources, “Native and invasive species responses to a whole-ecosystem climate change manipulation in the Mojave Desert.”

Oct 31^st, 2001 University of Arizona, Tucson, “Contrasting responses of native and non-native species to increasing atmospheric carbon dioxide.”

PROFESSIONAL MEMBERSHIPS

American Institute of Biological Science

Ecological Society of America

Southwestern Association of Naturalists

AWARDS AND HONORS

2000 UNLV Foundation Dissertation Research Excellence Award, University of Nevada, Las Vegas

1998 Best Student Poster Award, Ecological Society of America, Physiological Ecology Section.

1997 Forrest Shreve Award for Desert Research, Ecological Society of America.

FUNDING

Fellowships

2000 Biosphere-Atmosphere Research Training Fellowship $30000

1997 U.S. DOE/EPSCoR Traineeship $15000

Proposals

2001 NSF – Ecology (Global change and the ecological and evolutionary importance

of resource availability in desert annuals) Pending

1997 UNLV International Programs Research Award (Ecuador, Bolivia) $1000

1997 UNLV Biological Sciences Travel Award. $200

1997 UNLV Graduate Student Association Travel and Research Award $500

1997 CSUSB Instructionally Related Programs Research and Travel Fund $333

1996 CSUSB Instructionally Related Programs Research and Travel Fund $1487

1995 CSUSB Associated Students, Incorporated Research and Travel Fund $400

PROFESSIONAL SERVICE

Department

Biological Association of Graduate Students, President, 1998-1999 (UNLV)

Biological Association of Graduate Students, Faculty Representative, 1996-1998 (UNLV)

Biology Graduate Student Association, President, 1995-1996 (CSUSB)

Professional

Manuscript Referee for: American Naturalist, American Journal of Botany, Great Basin Naturalist, International Journal of Plant Sciences, Oecologia, Global Change Biology, Plant, Cell and Environment, Plant Ecology

Symposium Organizing Committee, Physiological Ecology Section, ESA, 1997

Judge for 36^th Annual Southern Nevada Science Fair (1997)

Judge for Riverside County Student Science Competition (1996)

COURSES TAUGHT

COURSE ID CAMPUS SESSIONS

Principles of Modern Biology I Biol 190 UNLV (1)

Plant Physiological Ecology Biol 745 UNLV (1; co-instructor)

Plant Physiology (Lab) Biol 431 CSUSB (1)

Biol. of Organisms (Lab) Biol 201 CSUSB (1)

Biol. of Populations (Lab) Biol 202 CSUSB (1)

Ecology (Lab) Biol 450 CSUSB (2)

General Biology (Lab) Biol 100 CSUSB (2)

Study Skill in Nat. Sciences BVENG 638 Chaffey College (1)

Basic Skills, Mathematics BVENG 637 Chaffey College (1)

Basic Skills, Reading BVENG 636 Chaffey College (1)