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2022
Ratajczak, Z, Collins SL, Blair JM, Koerner SE, Louthan A, Smith MD, Taylor J, Nippert JB.  2022.  Reintroducing bison results in sustained and resilient increases in grassland diversity. Proceedings of the National Academy of Sciences. 119
application/pdf iconRatajczak_etal_2022_PNAS.pdf
2021
Ma, M, Collins SL, Ratajczak Z, Du G.  2021.  Soil seed banks, alternative stable state theory, and ecosystem resilience. BioScience. 71:697-707.
application/pdf iconMa_etal_2021_BioScience.pdf
Collins, SL, Nippert JB, Blair JM, Briggs LM, Blackmore P, Ratajczak Z.  2021.  Fire frequency, state change and hysteresis in tallgrass prairie vegetation. Ecology Letters. 24:636-647.
application/pdf iconCollins_etal_2021_EL.pdf
2019
Ratajczak, Z, Churchill AC, Ladwig LM, Taylor JH, Collins SL.  2019.  The combined effects of an extreme heatwave and wildfire on tallgrass prairie vegetation. Journal of Vegetation Science. 30:687-697.
application/pdf iconRatajczak_etal_2019_JVS.pdf
2017
Ratajczak, Z, D'Odorico P, Collins SL, Bestelmeyer BT, Isbell FI, Nippert JB.  2017.  The interactive effects of press/pulse intensity and duration on regime shifts at multiple scales. Ecological Monographs. 87:198-218.
application/pdf iconRatajczak_etal_2017_EM.pdf
Ratajczak, Z, D'Odorico P, Nippert JB, Collins SL, Brunsell NA, Ravi S.  2017.  Changes in spatial variance during a grassland to shrubland state transition. Journal of Ecology. 105:750-760.
application/pdf iconRatajczak_etal_2017_JEcol.pdf
2012
Ratajczak, Z, Nippert JB, Collins SL.  2012.  Woody encroachment decreases diversity across North American grasslands and savannas. Ecology. 93:697-703.
application/pdf iconRatajczak_etal_2012_Ecology.pdf