45 Works

Data from: Clonal diversity impacts coral cover in Acropora cervicornis thickets: potential relationships between density, growth and polymorphisms

Crawford Drury, Justin B. Greer, Iliana Baums, Brooke Gintert & Diego Lirman
As coral reefs decline, cryptic sources of resistance and resilience to stress may be increasingly important for the persistence of these communities. Among these sources, inter‐ and intraspecific diversity remain understudied on coral reefs but extensively impact a variety of traits in other ecosystems. We use a combination of field and sequencing data at two sites in Florida and two in the Dominican Republic to examine clonal diversity and genetic differentiation of high‐ and low‐density...

Overfishing and the ecological impacts of extirpating large parrotfish from Caribbean coral reefs

Andrew Shantz, Mark Ladd & Deron Burkepile
The unique traits of large animals often allow them to fulfill functional roles in ecosystems that small animals cannot. However, large animals are also at greater risk from human activities. Thus, it is critical to understand how losing large animals impacts ecosystem function. In the oceans, selective fishing for large animals alters the demographics and size-structure of numerous species. While the community-wide impacts of losing large animals is a major theme in terrestrial research, the...

Tower-based atmospheric CO2 mole fractions (raw, uncalibrated) measured as part of the National Carbon Program’s Mid Continent Intensive, U.S. Upper Midwest, 2007-2009

N.L. Miles, S.J. Richardson, B.J. Haupt & K.J. Davis
A total of nine communication tower-based CO2 sensors were located within a 500 x 800 km2 area within the Mid Continental Intensive (MCI) study region in the U.S. Upper Midwest from May 2007 through November 2009. With the goal of oversampling the MCI region, The Pennsylvania State University deployed instruments at five towers: Centerville (Iowa), Galesville (Wisconsin), Kewanee (Illinois), Mead (Nebraska), and Round Lake (Minnesota). Here we publish the raw, uncalibrated data from these five...

Radiolysis of macromolecular organic material in Mars-relevant mineral matrices

A.C. Fox, J.L. Eigenbrode & C. Herrera
The fate of organic material on Mars after deposition is crucial to interpreting the source of these molecules. Previous work has addressed how various organic compounds at millimeter depths in sediments respond to ultraviolet (UV) radiation. In contrast, this study addressed how high-energy particle radiation (200-MeV protons, simulating the effect of galactic cosmic rays at depths of < 4-5 cm) influences organic macromolecules in sediments. Specifically, we report the generation of organic-acid radiolysis products after...

Data from: Physician champions’ perspectives and practices on electronic health records implementation: challenges and strategies

Xinning Gui, Yunan Chen, Xiaomu Zhou, Tera L. Reynolds, Kai Zheng & David A. Hanauer
Objective: Physician champions are “boots on the ground” physician leaders who facilitate the implementation of, and transition to, new health information technology (HIT) systems within an organization. They are commonly cited as key personnel in HIT implementations, yet little research has focused on their practices and perspectives. Methods: We addressed this research gap through a qualitative study of physician champions that aimed to capture their challenges and strategies during a large-scale HIT implementation. Email interviews...

Tower footprints for the Indianapolis Flux Experiment network (2012-2015)

T. Lauvaux, A. Deng, N.L. Miles, S.J. Richardson & K. Davis
Tower footprints represent the surface area that influenced an atmospheric mixing ratio observation measured at one of the 13 tower locations of the INFLUX network (https://sites.psu.edu/influx/site-information/). These footprints were generated to map in space and time the sensitivity of any given hourly atmospheric observation sampled between September 2012 to September 2015 by the network. The footprints were created by coupling the Lagrangian Particle Dispersion Model (LPDM) described by Uliasz [1994] to the WRF-FDDA modeling system...

Single-cell NDIR-based measurements of atmospheric C02 mole fractions measured at Ameriflux towers, 2006 - 2016

N.L. Miles, S.J. Richardson, B.J. Haupt, K.J. Davis, B. Stephens & A. Watt
Data collected via relatively low-cost, high-precision CO2 mixing ratio measurement systems, developed in collaboration with NCAR-ATD, are reported here. These data were collected to support inverse analyses of the terrestrial carbon balance at regional to continental scales. The systems use LICOR-820 non-dispersive infrared analyzers rather than the more expensive, but lower noise LICOR-6262 or LICOR-7000, since fast time response is not required for this application and the noise of the LICOR-820 can be reduced sufficiently...

Cavity ring-down spectroscopic measurements of CO2 mole fraction in State College, Pennsylvania, 2017-2018.

S.J. Richardson, N.L. Miles, T. Lauvaux, B.J. Haupt & K.J. Davis
Carbon dioxide (CO2) mole fractions were measured at three locations near State College, Pennsylvania, using cavity ring-down spectrometers (Picarro, Inc.). This dataset includes raw data and hourly averages. The instruments were calibrated via four NOAA tertiary tanks prior to deployment, but no field calibrations were applied. The air samples were not dried. The locations of the measurements were Rock Springs (40°43'15.3"N 77°55'54.1"W, 10 m AGL), Walker Building roof (40°47'36.1"N 77°52'02.0"W, 30 m AGL), and Houserville...

Archival data and code in support of uncertainty quantification of climate system properties using the MIT Earth System Model (MESM)

Chris Forest, Alex Libardoni, Andrei P. Sokolov & Erwan Monier
This archive provides the climate model outputs, observational data, and analysis codes that were used to quantify uncertainty in the climate system response properties of the MIT Earth System Model (MESM). Three papers (Libardoni et al. 2018a, 2018b, 2019) include results using these data and codes to provide conditional probability distributions of equilibrium climate sensitivity (ECS), the transient climate response (TCR), and the net radiative forcing by aerosols. The analysis codes are either written in...

Data from: Cross-boundary human impacts compromise the Serengeti-Mara ecosystem

Michiel P. Veldhuis, Mark E. Ritchie, Joseph O. Ogutu, Thomas A. Morrison, Colin M. Beale, Anna B. Estes, William Mwakilema, Gordon O. Ojwang, Catherine L. Parr, James Probert, Patrick W. Wargute, J. Grant C. Hopcraft & Han Olff
Protected areas provide major benefits for humans in the form of ecosystem services, but landscape degradation by human activity at their edges may compromise their ecological functioning. Using multiple lines of evidence from 40 years of research in the Serengeti-Mara ecosystem, we find that such edge degradation has effectively “squeezed” wildlife into the core protected area and has altered the ecosystem’s dynamics even within this 40,000-square-kilometer ecosystem. This spatial cascade reduced resilience in the core...

Data from: A trait-based approach to predict population genetic structure in bees

Margarita M. Lopez-Uribe, Shalene Jha & Antonella Soro
Understanding population genetic structure is key to developing predictions about species susceptibility to environmental change, such as habitat fragmentation and climate change. It has been theorized that life-history traits may constrain some species in their dispersal and lead to greater signatures of population genetic structure. In this study, we use a quantitative comparative approach to assess if patterns of population genetic structure in bees are driven by three key species-level life-history traits: body size, sociality,...

Analyses of vertical wind profile data from the VORTEX-Southeast 2017 field campaign

P. Markowski
This dataset contains observations from the Collaborative Lower Atmospheric Mobile Profiling System (CLAMPS) and NOAA Air Resources Laboratory, Atmospheric Turbulence and Diffusion Division) micrometeorological towers that were analyzed in the Markowski et al. (2019) study. That study used CLAMPS Doppler lidar observations of near-surface vertical wind profiles, and NOAA tower observations of near-surface shear and vertical momentum fluxes, both of which were obtained during the spring 2017 Verification of the Origins of Rotation in Tornadoes...

Data from: A homeotic shift late in development drives mimetic color variation in a bumble bee

Li Tian, Sarthok Rasique Rahman, Briana D. Ezray, Luca Franzini, James P. Strange, Patrick Lhomme & Heather M. Hines
Natural phenotypic radiations, with their high diversity and convergence, are well-suited for informing how genomic changes translate to natural phenotypic variation. New genomic tools enable discovery in such traditionally non-model systems. Here, we characterize the genomic basis of color pattern variation in bumble bees (Hymenoptera, Apidae, Bombus), a group that has undergone extensive convergence of setal color patterns as a result of Müllerian mimicry. In western North America, multiple species converge on local mimicry patterns...

Electrodynamic Levitation Diffusion Chamber Measurements of the Mass Growth of Heterogeneously-Nucleated Ice Crystals Grown from the Vapor

A. Harrison, A. Moyle, M. Hanson & J.Y. Harrington
This data set comprises individual time-series for ice crystals grown in an electrodynamic levitation diffusion chamber. Descriptions of the chamber and experiments can be found in Harrison et al. (2016). Experiments were conducted by freezing small (approximately 10 micrometer radius) droplets heterogeneously using the bionucleant Snomax. Frozen droplets were levitated in the diffusion chamber and grown in a constant temperature, pressure, and supersaturation environment. The voltage ratio needed to levitate the particle was recorded as...

Observational and modeled dataset for determination of urban emissions of CO2 using an atmospheric inversion technique, Davos, Switzerland, 2011-2012.

N.L. Miles, T. Lauvaux, S.J. Richardson, A. Deng & D. Stauffer
Anthropogenic emissions from urban areas represent 70% of the fossil fuel carbon emitted globally according to carbon emission inventories. The observational and model data archived here were used in the first operational system able to monitor, in near–real time, daily emission estimates, using a mesoscale atmospheric inversion framework over the city of Davos, Switzerland, before, during, and after the World Economic Forum 2012 Meeting (WEF-2012). Two instruments that continuously measured atmospheric mixing ratios of greenhouse...

Ensemble model output of North American atmospheric CO2 simulation (full WRF-chem output)

S. Feng, T. Lauvaux, K.J. Davis, K. Keller, R. Rayner, T. Oda, K. Gurney, Y. Zhou, C. Williams, A.E. Schuh, J. Liu & I. Baker
The uncertainty in biospheric carbon dioxide (CO2) flux estimates drives divergent projections of future climate and uncertainty in prescriptions for climate mitigation. The terrestrial carbon sink can be inferred from atmospheric CO2 observations with transport models via inversion methods. Regional CO2 flux estimates remain uncertain due to the mixture of uncertainties caused by transport models, prior estimates of biospheric fluxes, large-scale CO2 boundary inflow, the assumptions in the inversion process, and the limited density of...

Data from: Spatially-explicit avian frugivory, fruit availability, and seed rain in a latitudinal gradient of the Americas

Tomás Carlo
Network metrics are widely used to infer the roles of mutualistic animals in plant communities and to predict the effect of species' loss. However, their empirical validation is scarce. Here we parameterized a joint species model of frugivory and seed dispersal with bird movement and foraging data from tropical and temperate communities. With this model we investigate the effect of frugivore loss on seed rain, and compare our predictions to those of standard coextinction models...

Temperature and fluid pressurization effects on frictional stability of shale faults reactivated by hydraulic fracturing in the Changning Block, Southwest China

Mengke An, Fengshou Zhang, Zhaowei Chen, Derek Elsworth & Lianyang Zhang
A shale fault reactivated during multi-stage hydraulic fracturing in the Changning block in the Sichuan Basin, southwest China accompanied a cluster of small earthquakes with the largest reaching ML ~0.8. We illuminate the underlying mechanisms of fault reactivation through measurements of frictional properties on simulated fault gouge under hydrothermal conditions. Velocity-stepping experiments were performed at a confining pressure of 60 MPa, temperatures from 30 to 300 ℃, pore fluid pressures from 10 to 55 MPa...

United States National Lynching Data, 1883-1941

Charles Seguin & David Rigby
These data extend existing data on lynching victims to cover the 48 contiguous United States from 1883 to 1941. The data here cover 38 states not included in Tolney and Beck's (1995) original data, as well as 3 additional victims in the 10 states covered by Tolney and Beck. The authors confirmed 1,319 victims from previous data and found 15 additional victims not recorded in any prior data set.

Title Shale Network – Statewide Surface Water (Five Analytes: Cl, Ba, Br, Mg, Na) in Pennsylvania as of February 2018

T. Wen
This data set is a subset of the Shale Network database (https://doi.org/10.4211/his-data-shalenetwork) and has been discussed in the following publication “Agarwal, A., Wen, T., Chen, A., Zhang, A., Niu, X., Zhan, X., Xue, L., Brantley, S., 2019. Using a New Geospatial Tool to Detect Contamination Incidents in Stream Chemistry Networks: A Case Study for Shale Gas Development. XXXXXXXXX”. The Shale Network (http://www.shalenetwork.org/) is a project funded by the National Science Foundation to help scientists and...

Data, analyses, and software for the 12 May 2010 tornadic supercell storm intercepted near Clinton, Oklahoma by VORTEX2

P. Markowski, T.P. Hatlee & Y.P. Richardson
This dataset contains the raw, edited, and gridded mobile radar data (DOW6, DOW7, NOXP) and dual-Doppler wind syntheses that were the subject of the Markowski et al. (2018) study. That study analyzed the Clinton, Oklahoma, tornadic supercell storm intercepted by the Second Verification of the Origins of Rotation in Tornadoes Experiment (VORTEX2). The dataset also includes mobile mesonet data and the analysis software used for the study (mostly FORTRAN and MATLAB code). Additional documentation is...

Nonlinear Impacts of Surface Exchange Coefficient Uncertainty on Tropical Cyclone Intensity and Air-Sea Interactions

R.G. Nystrom, X. Chen, F. Zhang & C.A. Davis
Tropical cyclone maximum intensity is believed to result from a balance between the surface friction, which removes energy, and a temperature/moisture (enthalpy) difference between the sea surface and the air above it, which adds energy. The competing processes near the air-sea interface are controlled by both the near surface wind speed and the surface momentum (Cd) and enthalpy flux (Ck) coefficients. Unfortunately, these coefficients are currently highly uncertain at high wind speeds. Tropical cyclone winds...

Effects of BCG vaccination against Bovine Tuberculosis: a systematic review and meta-analysis Date

V. Srikrishnan, A. Conlan, L. Easterling, C. Herrara, P. Dandapat, M. Veerasami, G. Ameni, D. Bakker, M. Vordermeier & V. Kapur
Despite the effective control of Bovine Tuberculosis (bTB) in many countries using test-and-slaughter, more than 50 million cattle are still likely to be infected worldwide, highlighting the urgent need for alternative interventions such as vaccines to reduce disease burden and control spread of bTB. Vaccination may be particularly important in regions where the disease is endemic, and test-and-slaughter is neither practical nor acceptable socio-economically. Bacillus Calmette-Guérin (BCG) has been in experimental use in cattle for...

Is Tillage Beneficial or Detrimental for Invertebrate Pest Management? A Meta-Analysis Supplementary data

E. Rowen, K.H. Regan, M.E. Barbercheck & J.F. Tooker
Frequent and intensive tillage can have negative effects on soil, including increasing risk of erosion, oxidizing organic matter, and disrupting life cycles of soil organisms. Even though tillage can negatively influence soil, this practice is still used across much of the world to prepare fields for planting and to manage pests. Farmers who have adopted reduced-tillage systems can struggle with a suite of invertebrate pests; however, reducing the frequency and intensity of tillage may improve...

Data from: Spatial synchrony in sub-arctic geometrid moth outbreaks reflects dispersal in larval and adult lifecycle stages

Ole Petter L. Vindstad, Jane U. Jepsen, Nigel G. Yoccoz, Ottar N. Bjornstad, Michel D.S. Mesquita & Rolf A. Ims
1. Spatial synchrony in population dynamics can be caused by dispersal or spatially correlated variation in environmental factors like weather (Moran effect). Distinguishing between these mechanisms is challenging for natural populations, and the study of dispersal-induced synchrony in particular has been dominated by theoretical modelling and laboratory experiments. 2. The goal of the present study was to evaluate the evidence for dispersal as a cause of meso-scale (distances of tens of kilometers) spatial synchrony in...

Registration Year

  • 2019

Resource Types

  • Dataset


  • Pennsylvania State University
  • The University of Texas at Austin
  • University of Michigan–Ann Arbor
  • University of Georgia
  • Goddard Space Flight Center
  • University of Minnesota
  • Texas A&M University
  • University of California, Santa Barbara
  • University of Florida
  • University of Arizona