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ARS Home Plains Area Fort Collins, Colorado Center for Agricultural Resources Research Rangeland Resources & Systems Research People







David  Hoover    Research Ecologist /ARSUserFiles/30180500/Hoover_1.jpg
**David Hoover**
Research Ecologist/Ecohydrologist

**Contact Information**
Email: David.Hoover@usda.gov

Address:
USDA - ARS
Crops Research Laboratory
1701 Center Ave Fort Collins, CO 80526

Phone: 970-492-7126 **Education** Ph.D.   2014     Ecology                                               Colorado State University M.S.     2008    Integrative Geosciences                        University of Connecticut B.S.      2003    Ecology and Evolutionary Biology          University of Connecticut  **Research** Dr. David Hoover’s current research is focused on how land management and climatic variability influence the ecohydrology of semi-arid rangelands. He examines carbon and water dynamics through the soil-plant-atmosphere continuum at multiple temporal and spatial scales, ranging from plant-level ecophysiology through ecosystem-level exchange, to landscape-level patterns of water movement, storage and use. In addition to his research, Dr. Hoover seeks to provide science-based information for land managers to facilitate sustainable livestock production in a changing climate.  **Publications** Raynor, E.J., Derner, J.D., Hartman, M.D., Dorich, C.D., Parton, W.J., Hendrickson, J.R., Harmoney, K.R., Brennan, J.R., Owensby, C.E., Kaplan, N.E., Lutz, S.M.,**Hoover, D.L.**andAugustine, D.J.2024.Secondary production of the central rangeland region of the United States.*Ecological Applications*: e2978.https://esajournals.onlinelibrary.wiley.com/doi/full/10.1002/eap.2978 Copeland, S.M.,**Hoover, D.L.,**Augustine, D.J.,****Bates, J.D., Boyd, C.S., Davies, K.W.,****Derner, J.D.,****Duniway, M.C.,****Porensky, L.M.****and Vermeire, L.T. 2023.Variable effects of long-term livestock grazing across the western United States suggest diverse approaches are needed to meet global change challenges.*Applied Vegetation Science*26(1):e12719.https://doi.org/10.1111/avsc.12719 Raynor, E.J., Derner, J.D., Augustine, D.J., Jablonski, K.E.,Porensky, L.M., Ritten, J.,**Hoover, D.L.** and Elliott, J. 2022. Balancing ecosystem service outcomes at the ranch-scale in shortgrass steppe: The role of grazing management.*Rangelands*44: 391-397.  https://doi.org/10.1016/j.rala.2022.05.003 Spiegal, S., Webb, N.P., Boughton, E.H., Boughton, R.K., Brymer, A.B., Clark, P.E., Collins, C.D.H.,**Hoover, D.L.**, Kaplan, N., McCord, S.E., Meredith, G., Porensky, L.M.,Toledo, D.,Wilmer, H., Wulfhorst, J.D. and Bestelmeyer, B.T. 2022. Measuring the social and ecological performance of agricultural innovations on rangelands: Progress and plans for an indicator framework in the LTAR network.*Rangelands*44: 334–344. https://doi.org/10.1016/j.rala.2021.12.005 **Hoover, D.L.**, Abendroth, L.J., Browning, D.M., Saha, A., Snyder, K., Wagle, P., Witthaus, L., Baffaut, C., Biederman, J.A., Bosch, D.D.,Bracho, R.,Clark, P., Ellsworth, P., Fay, P.A., Flerchinger, G.,Kearney, S., Levers, L., Saliendra, N., Schmer, M., Schomberg, H., Scott, R.L. 2022.Indicators of water use efficiency across diverse agroecosystems and spatiotemporal scales.*Science of The Total Environment* 864,160992.https://doi.org/10.1016/j.scitotenv.2022.160992 Raynor, E.J.,Derner, J.D.,Porensky, L.M., **Hoover, D.L.**, Augustine, D.J.,Jablonski, K.E.,Dwyer, A.M., andK.P. Davis. 2022.Grazing Management Practices for Grassland Bird Breeding Habitat in the Shortgrass Steppe.Colorado State University ExtensionFact Sheet No. 1.636 Nature Resources Management. Finger-Higgens, R.,Duniway, M.C., Ficka, S., Geigera, E.L.,**Hoover, D.L.**, Pfennigwerth, A.A.,Van Scoyoc, M.W., Belnap, J. 2022.Decline in biological soil crust N-fixing lichens linked to increasing summertime temperatures.*Proceedings of the National Academy of Sciences*119(16):e2120975119.https://doi.org/10.1073/pnas.2120975119 **Hoover, D. L.**, A. A. Pfennigwerth, M. C. Duniway. 2021. Drought resistance and resilience: The role of soil moisture– plant interactions and legacies in a dryland ecosystem.  *Journal of Ecology*, DOI: 10.1111/1365-2745.13681 Cheng, G.,  R.D. Harmel , L. Ma, J.D. Derner,  D.J. Augustine, P.N.S. Bartling, Q. X. Fang, J.R. Williams, C.J. Zilverberg, R.B. Boone, **D. Hoover,** Q. Yu. 2021. Evaluation of APEX modifications to simulate forage production for grazing management decision-support in the Western US Great Plains. Agricultural Systems 191:103139, doi.org/10.1016/j.agsy.2021.103139 **Hoover, D. L**., W. K. Lauenroth, D. G. Milchunas, L. M. Porensky, D. J. Augustine, and J. D. Derner. 2021. Sensitivity of productivity to precipitation amount and pattern varies by topographic position in a semiarid grassland. Ecosphere 12(2): e03376. 10.1002/ecs2.3376 **Hoover, D. L**., B. Bestelmeyer, N. B. Grimm, T. E. Huxman, S. C. Reed, O. Sala, T. R. Seastedt, H. Wilmer, And S. Ferrenberg. 2020.  Traversing the Wasteland: A Framework for Assessing Ecological Threats to Drylands.  *BioScience*XX: 1–13, doi:10.1093/biosci/biz126 Smith, M. D., S. E. Koerner, A. K. Knapp, M. L. Avolio, F. A. Chaves, E. M. Denton, J. Dietrich, D. J. Gibson, J. Gray, A. M. Hoffman, **D. L. Hoover**, K. J. Komatsu, A. Silletti, K. R. Wilcox, Q. Yu| J. M. Blair. 2020. Mass ratio effects underlie ecosystem responses to environmental change.*Journal of Ecology*00:1–10., DOI: 10.1111/1365-2745.13330 Raynor E. J., J. D. Derner, **D. L. Hoover,** W. J. Parton, and D. J. Augustine. 2020. Large-scale and local climatic controls on large herbivore productivity: implications for adaptive rangeland management. *Ecological Applications* 00(00):e02053. 10.1002/eap.2053 Winkler, D. E., J. Belnap, **D. Hoover**, S. C. Reed, M. C. Duniway. 2019. Shrub persistence and increased grass mortality in response to drought in dryland systems. *Global Change Biology,*2019;00: 1–15. **Hoover D.L.**, K. Koriakin, J. Albrigtsen, and T. Ocheltree. 2019.  Comparing water-related plant functional traits among dominant grasses of the Colorado Plateau: Implications for drought resistance. *Plant Soil,*doi.org/10.1007/s11104-019-04107-9 **Hoover, D. L.**, K. R. Wilcox, and K. E. Young. 2018.Experimental droughts with rainout shelters: a methodological review. *Ecosphere* 9(1):e02088. 10.1002/ecs2.2088 **Hoover D.L.**, M. Duniway,  J. Belnap. 2017. Testing the apparent resistance of three dominant plants to chronic drought on the Colorado Plateau. *Journal of Ecology*, 105:152-162. Knapp A.K., M. Avolio, C. Beier, C.J.W.  Carroll, S.L. Collins, J.S. Dukes, L.H. Fraser, R. Griffin-Nolan, **D.L**. **Hoover**, M.E. Loik, R.P. Phillips, A. Post, O.E.Sala, I. Slette, L. Yahdjian, M.D. Smith. 2016.  Pushing precipitation to the extreme in distributed experiments: recommendations for simulating wet and dry years. *Global Change Biology*, 10.1111/gcb.13504. **Hoover, D.L.**, A.K. Knapp, M.D. Smith. 2016.  Photosynthetic responses to an experimental heat wave are mediated by soil water availability in a mesic grassland.*Oecologia*, 10.1007/s00442-016-3755-6. Smith M.D., A.K. Knapp, S.L. Collins, D.E. Burkepile,  K.P.  Kirkman, S.E.  Koerner, D.I. Thompson, J.M. Blair, C.E. Burns, S. Eby, E.J. Forrestel, R.W.S. Fynn, N. Govender, N. Hagenah, **D.L. Hoover**, K.R. Wilcox. 2016. Shared drivers but divergent ecological dynamics: insights from long-term experiments in savanna grasslands. *BioScience*, 66:666-682. **Hoover D.L**, .A.K. Knapp, M.D. Smith. 2016. The immediate and prolonged effects of climate extremes on soil respiration in a mesic grassland. *Journal of Geophysical Research – Biogeosciences,* 10.1002/2015JG003256:1-11. **Hoover D.L.,** .B.M. Rogers. 2016. Not all droughts are created equal: the impacts of drought frequency and magnitude on grassland carbon cycling. *Global Change Biology*, 22:1809-1820. Koerner S.E., M.L. Avoilio, C.C. Chang, J. Gray, **Hoover D.L.**, M.D. Smith. 2015.Invasibility of a mesic grassland depends on time-scale of fluctuating resources*.**Journal of Ecology*, 103:1538-1546. **Hoover D.L.**, M. Duniway, J. Belnap. 2015. Pulse-drought atop press-drought: Unexpected plant responses and implications for dryland ecosystems. *Oecologia*, 179:1211-1221. Knapp A, **D.L. Hoover**, K. Wilcox, M. Avolio, S. Koerner , K.  La Pierre, M.  Loik ,  L. Yiqi, O.  Sala, M. Smith. 2015. Characterizing differences in precipitation regimes of extreme wet and dry years: Implications for climate change experiments. *Global Change Biology*, 21:2624-2633. **Hoover D.L.**, A.K. Knapp, M.D. Smith. 2014. Resistance and resilience of a grassland ecosystem to climate extremes*.**Ecology*, 95: 2646-2656. Smith G.N., V.L. Rodgers, E.R. Brzostek, A. Kulmatiski, M.L. Avolio, S.E.Koerner, **D.L. Hoover**, K. Grant, A. Jentsch, S. Fatichi, D. Niyogi. 2014.  Towards a better integration of biological data from precipitation manipulation experiments into Earth system models. *Reviews of Geophysics*, 15: 412-434. **Hoover D.L.**, A.K. Knapp, M.D. Smith. 2014. Contrasting sensitivities of two dominant C4 grasses to extreme heat waves and drought.*Plant Ecology*, 215:721-731. Knapp A.K., **D.L. Hoover**, J.M. Blair, G. Buis, D.E.  Burkepile,  A. Chamberlin, S.L. Collins, R.W.S. Fynn, K. Kirkman, M.D. Smith, D. Blake, N. Govender, P. O’Neal, T.  Schreck, A.  Zinn. 2012.A test of two mechanisms proposed to optimize grassland aboveground primary productivity in response to grazing.  *Journal of Plant Ecology*, 5: 357-365.


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