00599nas a2200193   4500008004100000245008400041210006900125300000800194490000800202100001600210700001600226700001700242700001800259700001900277700001400296700001600310700001700326856006200343       2023                        eng d00aEvolutionary lineage explains trait variation among 75 coexisting grass species0 aEvolutionary lineage explains trait variation among 75 coexistin  a8870 v2391 aDonnelly, R1 aWedel, E.R.1 aTaylor, J.H.1 aNippert, J.B.1 aHelliker, B.R.1 aRiley, W.1 aStill, C.J.1 aGriffith, D.  uhttps://nph.onlinelibrary.wiley.com/doi/10.1111/nph.1898300462nas a2200121   4500008004100000245006500041210006400106260004300170490002100213100001600234700001800250856007200268       2023                        eng d00aResource-use strategies of woody plants in grassy ecosystems0 aResourceuse strategies of woody plants in grassy ecosystems  aManhattan, KSbKansas State University0 vPhD Dissertation1 aWedel, E.R.1 aNippert, J.B.  uhttps://krex.k-state.edu/items/4a62e6f9-df74-4f77-a9ea-c5a90861690a02538nas a2200193   4500008004100000020001800041245010700059210006900166250000600235260000800241300000700249520183800256100002302094700001502117700001802132700001602150700001902166856015902185       2022                        eng d  a978036747833900aClimate change in grassland ecosystems: current impacts and potential actions for a sustainable future0 aClimate change in grassland ecosystems current impacts and poten  a1  bCRC  a363 a<p>Grasslands are a widespread and globally important biome providing key ecosystem services, including carbon storage, regulation of the water cycle and diverse assemblages of plant and animal species. Grasslands also provide many important benefits to humans, such as food and forage for livestock. Climate changes manifest as temperature fluctuations, increased intensity of drought and flood cycles and increased atmospheric CO2 concentrations. These changes are impacting species growth responses, plant composition and other key grassland processes. In addition to the direct consequences of climate change, secondary (or indirect) impacts of climate change threaten grassland ecosystems. These include changes in land-use and land-cover, agricultural conversion, woody encroachment, invasive species and atmospheric nitrogen deposition. In this chapter, we discuss the direct and indirect impacts of climate change on grasslands generally, while using case studies from specific global grassland types to illustrate key threats and climate change impacts. We specifically provide examples of how direct and indirect climate changes interact, increasing the vulnerability of grasslands. In the final section of this chapter, we outline a climate action plan for grassland ecosystems that includes efforts focused at multiple scales, including the individual, community and global levels. These climate actions can be used to influence policy, reduce the rate of climate change, conserve and restore grasslands and, most importantly, need to begin immediately. Collectively, we explain the general ecological processes in grasslands, illustrate the consequences of climate change on this ecosystem and identify potential solutions to maintain the viability and persistence of grassland ecosystems for the foreseeable future.</p>1 aNippert, Jesse, B.1 aKeen, R.M.1 aBachle, Seton1 aWedel, E.R.1 aGroskinsky, B.  uhttps://www.taylorfrancis.com/chapters/edit/10.1201/9781003048701-4/climate-change-grassland-ecosystems-jesse-nippert-seton-bachle-rachel-keen-emily-wedel02277nas a2200145   4500008004100000245011200041210006900153300001600222490000800238520177500246100001602021700001802037700001902055856005702074       2021                        eng d00aFire and browsing interact to alter intra-clonal stem dynamics of an encroaching shrub in tallgrass prairie0 aFire and browsing interact to alter intraclonal stem dynamics of  a1039 - 10480 v1963 a<p>The expansion of woody species into grasslands has altered community structure and ecosystem function of grasslands worldwide. In tallgrass prairie of the Central Great Plains, USA, decreased fire frequency and intensity have increased the cover and abundance of woody species. In particular, clonal shrub cover has increased at accelerated rates due to vegetative reproduction and resprouting after disturbance. We measured the intra-clonal stem demography and relative growth rates (estimated change in woody biomass) of the shrub Cornus drummondii in response to fire frequency (4 vs 20year burn intervals) and simulated browsing during the 2018 and 2019 growing seasons at Konza Prairie Biological Station (Manhattan, Kansas). Overall, infrequent fire (4year burn interval) increased intra-clonal stem relative growth rates and shrub relative growth rates. Intra-clonal stem relative growth rates were reduced in unbrowsed clones in 2018 due to drought and simu-lated browsing reduced intra-clonal stem relative growth rates in 2019. Additionally, simulated browsing nearly eliminated flower production within clones but did not affect intra-clonal stem mortality or recruitment within a growing season. Fire in conjunction with simulated browsing reduced estimated relative growth rates for entire shrub clones. Browsed shrubs that experienced prescribed fire in 2017 had reduced intra-clonal stem densities compared to unbrowsed shrubs and stem densities of browsed shrubs did not recover in 2018 or 2019. These results illustrate that infrequent fire alone promotes the expansion of clonal shrubs in tallgrass prairie and multiple interacting disturbances (e.g., fire and browsing) are required to control the spread of clonal shrubs into grasslands.</p>1 aWedel, E.R.1 aNippert, J.B.1 aHartnett, D.C.  uhttps://link.springer.com/10.1007/s00442-021-04980-100616nas a2200169   4500008004100000245012100041210006900162300001200231490000700243100001600250700001800266700002300284700001700307700002100324700002200345856007900367       2021                        eng d00aSpatio-temporal differences in leaf physiology are associated with fire, not drought, in a clonally integrated shrub0 aSpatiotemporal differences in leaf physiology are associated wit  aplab0370 v131 aWedel, E.R.1 aO’Keefe, K.1 aNippert, Jesse, B.1 aHoch, Braden1 aO’Connor, R.C.1 aMitchell, Patrick  uhttps://academic.oup.com/aobpla/article/doi/10.1093/aobpla/plab037/6295325