9 Works

Sorghum wax chemistry data

Lucas Busta
Virtually all land plants are coated in a cuticle, a waxy polyester that prevents nonstomatal water loss and is important for heat and drought tolerance. Here, we describe a likely genetic basis for a divergence in cuticular wax chemistry between Sorghum bicolor, a drought tolerant crop widely cultivated in hot climates, and its close relative Zea mays (maize). Combining chemical analyses, heterologous expression, and comparative genomics, we reveal that: 1) sorghum and maize leaf waxes...

Winter and summer zooplankton community and environmental parameters data of thirteen lakes located in Minnesota and Wisconsin

Kirill Shchapov, Ted Ozersky & Paul Wilburn
This data set contains the results of a study on taxonomic and functional differences between winter and summer zooplankton communities in lakes across a trophic gradient. Thirteen lakes ('Sites.csv') were sampled across a large trophic status gradient for zooplankton abundance, taxonomic and functional community composition, and Carbon/Nitrogen (C/N) stable isotopes in relation to environmental parameters. Zooplankton abundance and taxonomic identification were made for all stations ('Zooplankton_abundance.csv'); nutrients and C/N stable isotopes values in file 'Environmental_parameters';...

Lake Superior moored temperature and currents, Sep 2005-May 2015

Jay A Austin & Cassandra Elmer
From 2005 to the present, investigators from the Large Lakes Observatory at the University of Minnesota, Duluth have been deploying sub-surface moorings instrumented with temperature and current sensors at a variety of sites around Lake Superior. Temperature sensors at a range of depths, and profiling current meters were used to characterize the physical properties of the lake's water column. At one site, a nearly continuous time series of temperature throughout the water column exists from...

2010 Lake Superior Mooring Deployments

Jay A Austin
Since 2005, investigators at UM Duluth's Large Lakes Observatory have been deploying sub-surface moorings in Lake Superior to investigate thermal structure and currents. This submission contains all temperature and current data from deployments that occurred in 2010.

Data for Impacts of beaver dams on low-flow hydrology and hydraulics, Knife River, Minnesota

Karen B Gran, Hannah Behar, Emma Burgeson, Salli Dymond, Josh Dumke & Rebecca Teasley
These data were collected as part of a two-year investigation into the impacts of beaver dam removal on low-flow hydrology and hydraulics in the Knife River, Minnesota, USA. Eight sub-basins were monitored for two years, organized as four pairs of sub-basins. The study focused on small headwater sub-basins, with areas ranging from 1.58 to 6.4 km2. In 2018, all of the study basins had active beaver dams. In 2019, the beavers were removed and dams...

Data and R code from: Relics of beavers past: time and population density drive scale-dependent patterns of ecosystem engineering

Sean Johnson-Bice, Thomas Gable, Steve Windels & George Host
Like many ecological processes, natural disturbances exhibit scale-dependent dynamics that are largely a function of the magnitude, frequency, and scale at which they are assessed. Ecosystem engineers create patch-scale disturbances that affect ecological processes, yet we know little about how these effects scale across space or vary through time. Here, we investigate how patch disturbances by beavers (Castor canadensis), ecosystem engineers renowned for their pond-creation behavior, affect ecological processes across space and time. We evaluated...

Eight generations of native seed cultivation reduces plant fitness relative to the wild progenitor population

Riley Pizza, Erin Espeland & Julie Etterson
Native seed for restoration is in high demand, but widespread habitat degradation will likely prevent enough seed from being sustainably harvested from wild populations to meet this need. While propagation of native species has emerged in recent decades to address this resource gap, few studies have tested whether the processes of sampling from wild populations, followed by generations of farm cultivation, reduces plant fitness tolerance to stress over time. To test this, we grew the...

Title Supplementary Data and Code for 'On The Estimation of Internal Climate Variability During the Preindustrial Past Millennium'

M.E. Mann, B.A. Steinman, D.J. Brouillette, A. Fernandez & S.K. Miller
We use an ensemble of simulations of a coupled model (NCAR Community Earth System Model) driven by natural radiative forcing estimates over the pre-industrial past millennium to test the efficacy of methods used previously to remove forced variability from proxy-based climate reconstructions and estimate residual internal variability (e.g. a putative "Atlantic Multidecadal Oscillation"). Within the framework of these experiments, the forced component of surface temperature change can be estimated accurately from the ensemble mean, and...

A geographic mosaic of coevolution between Eurosta solidaginis (Fitch) and its host plant tall goldenrod Solidago altissima (L.)

Timothy Craig & Joanne Itami
A geographic mosaic of coevolution has produced local reciprocal adaptation in tall goldenrod, Solidago altissima (L.), and the goldenrod ball gall fly, Eurosta solidaginis (Fitch 1855). The fly is selected to induce gall diameters that minimize mortality from natural enemies, and the plant is selected to limit gall growth that reduces plant fitness. We conducted a double reciprocal transplant experiment where S. altissima and E. solidaginis from three sites were grown in gardens at each...

Registration Year

  • 2021

Resource Types

  • Dataset


  • University of Minnesota, Duluth
  • University of Minnesota
  • United States Department of Agriculture
  • University of Manitoba
  • Pennsylvania State University