Search Results - "Nippert, Jesse"

Linking resource‐ and disturbance‐based models to explain tree–grass coexistence in savannas by Holdo, Ricardo M., Nippert, Jesse B.

“…Summary Savannas cover a significant fraction of the Earth's land surface. In these ecosystems, C3 trees and C4 grasses coexist persistently, but the…”
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Abrupt transition of mesic grassland to shrubland: evidence for thresholds, alternative attractors, and regime shifts by Ratajczak, Zak, Nippert, Jesse B, Ocheltree, Troy W

“…Ecosystems with alternative attractors are susceptible to abrupt regime shifts that are often difficult to predict and reverse. In this study, we quantify…”
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Woody encroachment decreases diversity across North American grasslands and savannas by Ratajczak, Zakary, Nippert, Jesse B, Collins, Scott L

“…Woody encroachment is a widespread and acute phenomenon affecting grasslands and savannas worldwide. We performed a meta-analysis of 29 studies from 13…”
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Climate variability supersedes grazing to determine the anatomy and physiology of a dominant grassland species by Bachle, Seton, Nippert, Jesse B.

“…Grassland ecosystems are historically shaped by climate, fire, and grazing which are essential ecological drivers. These grassland drivers influence morphology…”
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Browsing and fire decreases dominance of a resprouting shrub in woody encroached grassland by O’Connor, Rory C., Taylor, Jeffrey H., Nippert, Jesse B.

“…North American grasslands have experienced increased relative abundance of shrubs and trees over the last 150 yr. Alterations in herbivore composition,…”
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Microanatomical traits track climate gradients for a dominant C4 grass species across the Great Plains, USA by Bachle, Seton, Nippert, Jesse B

“…Andropogon gerardii is a highly productive C4 grass species with a large geographic range throughout the North American Great Plains, a biome characterized by…”
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Challenging the maximum rooting depth paradigm in grasslands and savannas by Nippert, Jesse B., Holdo, Ricardo M.

“…Summary For many grassland and savanna ecosystems, water limitation is a key regulator of individual plant, community and ecosystem processes. Maximum rooting…”
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Plant water uptake along a diversity gradient provides evidence for complementarity in hydrological niches by O'Keefe, Kimberly, Nippert, Jesse B., McCulloh, Katherine A.

“…Biodiversity enhances a variety of ecosystem processes, and yet the underlying mechanisms through which these relationships occur remain a critical knowledge…”
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Timing of climate variability and grassland productivity by Craine, Joseph M, Nippert, Jesse B, Elmore, Andrew J, Skibbe, Adam M, Hutchinson, Stacy L, Brunsell, Nathaniel A

“…Future climates are forecast to include greater precipitation variability and more frequent heat waves, but the degree to which the timing of climate…”
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Root‐niche separation between savanna trees and grasses is greater on sandier soils by Case, Madelon F., Nippert, Jesse B., Holdo, Ricardo M., Staver, A. Carla, Oliveras, Imma

“…In savannas, partitioning of below‐ground resources by depth could facilitate tree–grass coexistence and shape vegetation responses to changing rainfall…”
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Fire dynamics distinguish grasslands, shrublands and woodlands as alternative attractors in the Central Great Plains of North America by Ratajczak, Zak, Nippert, Jesse B, Briggs, John M, Blair, John M, Sala, Osvaldo

“…This review synthesizes evidence that altered fire frequency drives discontinuous ecosystem transitions from mesic grasslands to shrublands or woodlands in the…”
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Fire frequency, state change and hysteresis in tallgrass prairie by Collins, Scott L., Nippert, Jesse B., Blair, John M., Briggs, John M., Blackmore, Pamela, Ratajczak, Zak, Comita, Liza

“…Hysteresis is a fundamental characteristic of alternative stable state theory, yet evidence of hysteresis is rare. In mesic grasslands, fire frequency…”
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safety vs efficiency trade‐off identified in the hydraulic pathway of grass leaves is decoupled from photosynthesis, stomatal conductance and precipitation by Ocheltree, Troy W, Nippert, Jesse B, Prasad, P. V. Vara

“…A common theme in plant physiological research is the trade‐off between stress tolerance and growth; an example of this trade‐off at the tissue level is the…”
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The interactive effects of press / pulse intensity and duration on regime shifts at multiple scales by Ratajczak, Zak, D'Odorico, Paolo, Collins, Scott L., Bestelmeyer, Brandon T., Isbell, Forest I., Nippert, Jesse B.

“…Regime shifts are difficult-to-reverse transitions that occur when an ecosystem reorganizes around a new set of self-reinforcing feedbacks. Regime shifts are…”
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Drivers of nocturnal water flux in a tallgrass prairie by O’Keefe, Kimberly, Nippert, Jesse B.

“…Nocturnal transpiration can impact water balance from the local community to earth‐atmosphere fluxes. However, the dynamics and drivers of nocturnal…”
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African savanna grasses outperform trees across the full spectrum of soil moisture availability by Belovitch, Michael W., NeSmith, Julienne E., Nippert, Jesse B., Holdo, Ricardo M.

“…Summary Models of tree–grass coexistence in savannas make different assumptions about the relative performance of trees and grasses under wet vs dry…”
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Intra-canopy leaf trait variation facilitates high leaf area index and compensatory growth in a clonal woody encroaching shrub by Tooley, E Greg, Nippert, Jesse B, Bachle, Seton, Keen, Rachel M

“…Leaf trait variation enables plants to utilize large gradients of light availability that exist across canopies of high leaf area index (LAI), allowing for…”
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Remotely Sensed Soil Moisture Can Capture Dynamics Relevant to Plant Water Uptake by Feldman, Andrew F., Dong, Jianzhi, Akbar, Ruzbeh, Crow, Wade T., McColl, Kaighin A., Konings, Alexandra G., Tumber-Dávila, Shersingh Joseph, Holbrook, Noel M., Rockwell, Fulton E., Scott, Russell L., Reichle, Rolf Helmut, Chatterjee, Abhishek, Joiner, Joanna, Poulter, Benjamin, Entekhabi, Dara

“…A frequently expressed viewpoint across the Earth science community is that global soil moisture estimates from satellite L-band (1.4 GHz) measurements…”
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Grazing by bison is a stronger driver of plant ecohydrology in tallgrass prairie than fire history by O'Keefe, Kimberly, Nippert, Jesse B.

“…Background and Aims Fire and grazing are important disturbances in grasslands, yet we know little about how they impact a variety of plant physiological…”
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Global diversity of drought tolerance and grassland climate-change resilience by Craine, Joseph M., Ocheltree, Troy W., Nippert, Jesse B., Towne, E. Gene, Skibbe, Adam M., Kembel, Steven W., Fargione, Joseph E.

“…Grasslands have always experienced drought, but future drought conditions are likely to be more severe and frequent as climates change. This study shows that…”
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