Konza LTER Publications

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2011
Ratajczak Z, Nippert JB, Hartman JC, Ocheltree TW. Positive feedbacks amplify rates of woody encroachment in mesic tallgrass prairie. Ecosphere. 2011;2:121 -. doi:10.1890/ES11-00212.1.
2012
Ratajczak Z, Nippert JB. Comment on "Global Resilience of Tropical Forest and Savanna to Critical Transitions". Science. 2012;336:541 -. doi:10.1126/science.1219346.
Ratajczak Z, Nippert JB, Collins SL. Woody encroachment decreases diversity across North American grasslands and savannas. Ecology. 2012;93:697 -703. doi:10.1890/11-1199.1.
2013
Nippert JB, Ocheltree TW, Orozco GL, Ratajczak Z, Ling B, Skibbe AM. Evidence of physiological decoupling from grassland ecosystem drivers by an encroaching woody shrub. PLoS ONE. 2013;8:81630 -. doi:10.1371/journal.pone.0081630.
2014
Ratajczak Z, Nippert JB, Ocheltree TW. Abrupt transition of mesic grassland to shrubland: evidence for thresholds, alternative attractors, and regime shifts. Ecology. 2014;95:2633 -2645. doi:10.1890/13-1369.1.
Ratajczak Z. Ecological thresholds and abrupt transitions of tallgrass prairie to shrublands and woodlands. 2014; PhD. Dissertation. Available at: http://hdl.handle.net/2097/17661.
Ratajczak Z, Nippert JB, Briggs JM, Blair JM. Fire dynamics distinguish grasslands, shrublands, and woodlands as alternative attractors in the Central Great Plains of North America. Journal of Ecology. 2014;102:1374 -1385. doi:10.1111/1365-2745.12311.
2016
Ratajczak Z, Briggs JM, Goodin DG, Mohler R, Nippert JB, Obermeyer BK. Assessing the potential for transitions from tallgrass prairie to woodlands: are we operating beyond critical transitions?. Rangeland Ecology & Management. 2016;69(4):280–287. doi:http://dx.doi.org/10.1016/j.rama.2016.03.004.
Ladwig L, Ratajczak Z, Ocheltree TW, et al. Beyond arctic and alpine: the influence of winter climate on temperate ecosystems. Ecology. 2016;97(2):372 - 382. doi:10.1890/15-0153.1.
Klodd AE, Nippert JB, Ratajczak Z, Waring H, Phoenix GK. Tight coupling of leaf area index to canopy nitrogen and phosphorus across heterogeneous tallgrass prairie communities. Oecologia. 2016;182(3):889 - 898. doi:10.1007/s00442-016-3713-3.
2017
Brunsell N, van Vleck ES, Nosshi M, Ratajczak Z, Nippert JB. Assessing the roles of fire frequency and precipitation in determining woody plant expansion in central U.S. grasslands. Journal of Geophysical Research - Biogeosciences. 2017;122(10):2683–2698. doi:10.1002/2017JG004046.
Ratajczak Z, D’Odorico PD, Nippert JB, Collins SL, Brunsell N, Ravi S. Changes in spatial variance during a grassland to shrubland state transition. Journal Ecology. 2017;105(3):750-760. doi:10.1111/1365-2745.12696.
Ratajczak Z, D'Odorico P, Collins SL, Bestelmeyer BT, Isbell FL, Nippert JB. The interactive effects of press/pulse intensity and duration on regime shifts at multiple scales. Ecological Monographs. 2017;87(2):198-218. doi:10.1002/ecm.1249.
2019
Ratajczak Z, Churchill AC, Ladwig LM, Taylor JH, Collins SL. The combined effects of an extreme heatwave and wildfire on tallgrass prairie vegetation. Journal of Vegetation Science. 2019;30(4):687 - 697. doi:10.1111/jvs.12750.
Ratajczak Z, Ladwig L. Will climate change push grasslands past critical thresholds?. In: Gibson D, Newman J Grasslands and Climate Change. Grasslands and Climate Change. Cambridge, UK.: British Ecological Society and Cambridge University Press; 2019:98 - 114. Available at: https://www.cambridge.org/core/books/grasslands-and-climate-change/will-climate-change-push-grasslands-past-critical-thresholds/368C9316D9C5A8A3C6B6881779BA5EB5.
2021
Collins SL, Nippert JB, Blair JM, Briggs JM, Blackmore P, Ratajczak Z. Fire frequency, state change and hysteresis in tallgrass prairie. Ecology Letters. 2021;24(4):636-647. doi:10.1111/ele.13676.
2023
Noble B. Early detection of wildfire risk in the Great Plains: merging machine learning, landscape metrics, and rich data sources. Department of Biology. 2023;MS Thesis. Available at: https://krex.k-state.edu/bitstream/handle/2097/43444/BrynnNoble2023.pdf?sequence=3.
Keen RM, Nippert JB, Sullivan PL, et al. Impacts of riparian and non-riparian woody encroachment on tallgrass prairie ecohydrology. Ecosystems. 2023;26(2):290-301. doi:10.1007/s10021-022-00756-7.
Dodds WK, Ratajczak Z, Keen RM, et al. Trajectories and state changes of a grassland stream and riparian zone after a decade of woody vegetation removal. Ecological Applications. 2023;33(4):e2830. doi:10.1002/eap.2830.
2024
Tooley EG, Nippert JB, Ratajczak Z. Evaluating methods for measuring the leaf area index of encroaching shrubs in grasslands: From leaves to optical methods, 3-D scanning, and airborne observation. Agricultural and Forest Meteorology. 2024;349. doi:10.1016/j.agrformet.2024.109964.
Sutton AO, Ratajczak Z, Louthan AM. High among‐species variability in the context dependence of herbivory across disturbance, weather and topoedaphic gradients. Journal of Ecology. 2024;112(10):2237-2248. doi:10.1111/1365-2745.14390.
Noble S. North American megafauna, friend or foe to woody encroachment across the Great Plains? Further exploring the American bison’s ecological role on plant communities. Department of Biology. 2024;PhD Dissertation. Available at: https://krex.k-state.edu/items/2d3c8fa7-ad50-475d-a753-216ebeef5b0b.