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Ryan Sponseller

Ryan Sponseller

Post Doctoral Research Associate, School of Life Sciences

Ryan.Sponseller@asu.edu

School of Life Sciences
Arizona State University
PO Box 874501
Tempe, AZ 85287-4501-4501
USA

Titles

  • Post Doctoral Research Associate, School of Life Sciences

Journal Articles

2018

Cook, E. M., R. A. Sponseller, N. B. Grimm and S. J. Hall. 2018. Mixed method approach to assess atmospheric nitrogen deposition in arid and semi-arid ecosystems. Environmental Pollution 239(Aug):617-630. DOI: 10.1016/j.envpol.2018.04.013. (link )

2012

Sponseller, R. A., S. J. Hall, D. P. Huber, N. B. Grimm, J. P. Kaye, C. M. Clark and S. L. Collins. 2012. Variation in monsoon precipitation drives spatial and temporal patterns of Larrea tridentata growth in the Sonoran Desert. Functional Ecology 26(3):750-758. DOI: DOI: 10.1111/j.1365-2435.2012.01979.x. (link )

2011

Hall, S. J., R. A. Sponseller, N. B. Grimm, D. P. Huber, J. P. Kaye, C. F. Clark and S. L. Collins. 2011. Ecosystem response to nutrient enrichment across an urban airshed in the Sonoran Desert. Ecological Applications 21(3):640-660. (link )

Kaye, J. P., S. E. Eckert, D. A. Gonzales, J. O. Allen, S. J. Hall, R. A. Sponseller and N. B. Grimm. 2011. Decomposition of urban atmospheric carbon in Sonoran Desert soils. Urban Ecosystems 4:737-754. DOI: 10.1007/s11252-011-0173-8. (link )

2009

Hall, S. J., B. Ahmed, P. Ortiz, R. C. Davies, R. A. Sponseller and N. B. Grimm. 2009. Urbanization alters soil microbial functioning in the Sonoran Desert. Ecosystems 12(4):654-671. DOI: 10.1007/s10021-009-9249-1. (link )

2008

Lohse, K. A., D. Hope, R. A. Sponseller, J. O. Allen and N. B. Grimm. 2008. Atmospheric deposition of carbon and nutrients across an arid metropolitan area. Science of the Total Environment 402(1):95-105. DOI: 10.1016/j.scitotenv.2008.04.044. (link )

Sponseller, R. A. and S. G. Fisher. 2008. The influence of drainge networks on patterns of soil respiration in a desert catchment. Ecology 89(4):1089–1100. DOI: 10.1890/06-1933.1. (link )

2007

Fisher, S. G., J. B. Heffernan, R. A. Sponseller and J. R. Welter. 2007. Functional ecomorphology: Feedbacks between form and function in fluvial landscape ecosystems. Geomorphology 89(1-2):84-96. DOI: 10.1016/j.geomorph.2006.07.013. (link )

Sponseller, R. A. 2007. Precipitation pulses and soil CO2 flux in a Sonoran Desert ecosystem. Global Change Biology 13(2):426-436. DOI: 10.1111/j.1365-2486.2006.01307.x. (link )

2006

Sponseller, R. A. and S. G. Fisher. 2006. Drainage size, stream intermittency, and ecosystem function in a Sonoran Desert landscape. Ecosystems 9(3):344-356. DOI: 10.1007/s10021-005-0167-6. (link )

2005

Sabo, J. L., R. A. Sponseller, M. Dixon, K. Gade, T. K. Harms, J. B. Heffernan, A. Jani, G. Katz, C. Soykan, J. Watts and J. R. Welter. 2005. Riparian areas harbor different, not more, species. Ecology 86(1):56-62. DOI: 10.1890/04-0668.

Posters

2017

Wheeler, M. M., S. L. Collins, S. J. Hall, N. B. Grimm, C. M. Clark and R. A. Sponseller. 2017. Nutrient enrichment alters annual plant community composition in the northern Sonoran Desert. Poster presented at the Annual Meeting Portland ESA 2017, August 6-11, 2017, Portland, OR. (link )

2012

Cook, E. M., S. J. Hall, R. A. Sponseller, D. P. Huber, S. R. Earl and N. B. Grimm. 2012. Atmospheric nitrogen deposition in Phoenix AZ is lower than expected: Findings from a methods comparison. Poster presented at the 13 January 2012 CAP LTER 14th Annual Poster Symposium and All Scientist Meeting, Global Institute of Sustainability, Arizona State University, Tempe, AZ. (link )

2011

Cook, E. M., S. J. Hall, R. A. Sponseller, D. P. Huber, S. R. Earl and N. B. Grimm. 2011. Atmospheric nitrogen deposition fluxes in arid Phoenix, Arizona: A comparison of sampling methods. Poster presented at the 7-12 August 2011 96th Annual Meeting of the Ecological Society of America, Austin, TX.

2008

Ahmed, B., R. A. Sponseller, N. B. Grimm and S. J. Hall. 2008. Observed extracellular enzyme activity (EEA) in the Sonoran Desert. Poster presented at 10 January 2008 CAP LTER 10th Annual Poster Symposium, Global Institute of Sustainability, Arizona State University, Tempe, AZ. (link )

Gonzales, D. A., J. O. Allen, R. A. Sponseller, S. J. Hall and N. B. Grimm. 2008. Atmospheric dry deposition of gaseous and particulate nitrogen to urban-influenced Sonoran Desert sites. Poster presented at 10 January 2008 CAP LTER 10th Annual Poster Symposium, Global Institute of Sustainability, Arizona State University, Tempe, AZ. (link )

2007

Ahmed, B., K. A. Lohse, R. A. Sponseller and N. B. Grimm. 2007. Food web dynamics in above-ground desert remnant and xeric residential landscapes. Poster presented at the January 10, 2007 CAP LTER Ninth Annual Poster Symposium, Global Institute of Sustainability, Arizona State University, Tempe, AZ.. (link )

Lohse, K. A., D. Hope, R. A. Sponseller, J. O. Allen and N. B. Grimm. 2007. Spatial and temporal patterns of wet and dry deposition of nutrients in a desert city. Poster presented at the January 10, 2007 CAP LTER Ninth Annual Poster Symposium, Global Institute of Sustainability, Arizona State University, Tempe, AZ.. (link )

2006

Lohse, K. A., D. Hope, R. A. Sponseller and N. B. Grimm. 2006. Atmospheric deposition of nutrients in a desert city: Spatial patterns of wet deposition, throughfall, and runoff. Poster presented at the 6-11 August 2006 91st Annual Meeting of the Ecological Society of America, Memphis, TN.

Wong, C. P., N. B. Grimm and R. A. Sponseller. 2006. Desert crusts in an urban landscape: Responses of N2 fixation to anthropogenic C and N deposition. Poster presented at the 6-11 August 2006 91st Annual Meeting of the Ecological Society of America, Memphis, TN.

2002

Hall, S. J., N. B. Grimm, S. L. Collins, K. Gade, D. Hope, D. Jenerette, A. P. Kinzig, J. D. Schade, R. A. Sponseller, J. R. Welter, W. Wu, T. Johns, M. A. Luck, R. E. Erickson and C. Kochert. 2002. NOx emissions and uptake by urban soils. Poster presented at January 17, 2002, CAP LTER Fourth Annual Poster Symposium, Center for Environmental Studies, Arizona State University, Tempe, AZ. (link )

Presentations

2009

Grimm, N. B., E. Cook, S. R. Earl, R. L. Hale, S. J. Hall, H. E. Hartnett, D. M. Iwaniec, E. K. Larson, M. R. McHale and R. A. Sponseller. 2009. Ecosystem biogeochemical function and services in an urbanizing desert region. Presentation December 14-18 at the 2009 Annual Meeting of the American Geophysical Union, San Francisco, CA.

Hall, S. J., R. A. Sponseller, N. B. Grimm, D. P. Huber, C. F. Clark, S. L. Collins, J. P. Kaye and J. O. Allen. 2009. Ecosystem response to the urban atmosphere in the Sonoran Desert. Presentation at the August 2-7, 2009 94th Annual Meeting of the Ecological Society of America, Albuquerque, NM.

2008

Allen, J. O., D. A. Gonzales, R. A. Sponseller, S. J. Hall and N. B. Grimm. 2008. Atmospheric dry deposition of gaseous and particulate nitrogen to urban-influenced Sonoran Desert sites in central Arizona. Presentation at the April 2008 18th Conference on Atmospheric Biogeosciences, Orlando, FL.

2007

Hall, S. J., R. A. Sponseller, N. B. Grimm, J. P. Kaye and J. O. Allen. 2007. Ecosystem response to the urban atmosphere in the Sonoran Desert. San Jose McEnery Conference Center. Presentation at the 6-10 August 2007 joint meeting of 92nd Annual Meeting of the Ecological Society of America and Society for Ecological Restoration 18th International Conference, San Jose, CA.