Ryan Sponseller
Post Doctoral Research Associate, School of Life Sciences
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
2021
Wheeler, M. M., S. L. Collins, N. B. Grimm, E. M. Cook, C. Clark, R. A. Sponseller and S. J. Hall. 2021. Water and nitrogen shape winter annual plant diversity and community composition in near-urban Sonoran Desert preserves. Ecological Monographs 91(3):e01459. DOI: 10.1002/ecm.1450. (link )
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
2018
Wheeler, M. M., S. L. Collins, N. B. Grimm, C. Clark, R. A. Sponseller and S. J. Hall. 2018. Nutrient enrichment alters annual plant diversity in the northern Sonoran Desert. Poster presented at the 20th Annual CAP LTER All Scientists Meeting and Poster Symposium, January 5, 2018, Skysong, Scottsdale, AZ. (link )
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.