Lindquist, L., Palmquist, K., Jordan, S., and W. Lauenroth. (2019) Climate change impacts on groundwater recharge in Wyoming big sagebrush ecosystems are contingent on elevation. Western North American Naturalist
Jordan, S., Palmquist, K., and W. Lauenroth. In prep. Long-term responses of vegetation composition and structure along a grazing intensity gradient in big sagebrush communities. Target Journal: Journal of Applied Ecology
Palmquist, K., S. Jordan, J. Bradford, D. Schlaepfer & W. Lauenroth. In prep. Resource quantity and resource heterogeneity shape species richness and beta-diversity patterns in big sagebrush plant communities. Target journal: Ecology
Ongoing research projects
Drought and disturbance in North American Drylands
This is an ongoing experiment that is a collaboaration of Arizona State University, UGSS, Utah State University, New Mexico State University, and the Univeristy of Arizona. We are using a manipulative field experiment to ask how drylands in North America respond to drought and disturbance over time. Specifically, we have replicated the experiment in the Mojave, Great Basin, and Chihuahuan deserts. Now in it’s third year, this experiment is just beginning to have the results point to how each of these ecosystems respond to these global change drivers. More to come!
Biodiversity and soil water dynamics in big sagebrush ecosystems
Using both intensive field sampling and soil water modelling, we quantified biodiversity in big sagebrush communities at 51 sites across all major biogeographical basins of Wyoming. Some of the results of this study have been published (see above), but we have high hopes for additional manuscripts and published datasets from this research effort.
Livestock grazing effects on structure and function of big sagebrush ecosystems
Using space for time around livestock watering points in western Wyoming, collaborators and I have ongoing work on public lands that are grazed by cattle as their primary use. In this study, we used the piosphere, or the pattern of increasing livestock impact around water sources, to quantify how livestock grazing impacts plant community diversity and structure.