269 Works

Soil Water Content at MMWD

Peter Hartsough
These data were collected using Decagon (Meter) GS1 sensors at two different depths, 30cm and 60cm. Data were collected hourly and these are mean values at the three different sites.

A microbial survey of the International Space Station (ISS)

Jonathan Eisen, David Coil & Jenna Lang
Background Modern advances in sequencing technology have enabled the census of microbial members of many natural ecosystems. Recently, attention is increasingly being paid to the microbial residents of human-made, built ecosystems, both private (homes) and public (subways, office buildings, and hospitals). Here, we report results of the characterization of the microbial ecology of a singular built environment, the International Space Station (ISS). This ISS sampling involved the collection and microbial analysis (via 16S rDNA PCR)...

Caltrans PEMS highway sensor average flows by occupancy

Clark Fitzgerald & Michael Zhang
This data summarizes average vehicle flow as a function of occupancy for traffic sensor data available from CalTrans Performance Management System (PEMS). It's useful because it shows the behavior of traffic in congested regimes, without requiring the preprocessing of several hundred GB of the raw data. Open the pdf files to see what this data looks like.

Heterotrophic N2-fixation contributes to nitrogen economy of a common wetland sedge, Schoenoplectus californicus

Eliska Rejmankova, Dagmara Sirova, Stephanie Castle, Jiri Barta & Heather Carpenter
These data sets document environmental characteristics of sampling locations of Schoenoplectus californicus, california bulrush, throughout its range in the Americas. In addition, the data on nif gene in rhizomes and roots of Schoenoplectus are provided.

Vibrational Neutron Scattering Spectra for Undoped and Doped P3HT

Thomas Harrelson, Jun Li & Adam Moule
Doped semiconducting polymers have garnered vast research interest in photovoltaic, transistor, thermoelectric, and sensor applications. P3HT is a canonical semiconducting polymer that self-assembles into a mixture of crystalline and amorphous domains. Doping P3HT can increase the observed conductivity by several orders of magnitude. The vibrations of the polymer are sensitive to the local morphology of the film, and the morphology of the film changes upon doping. Vibrational neutron spectroscopy is a method for identifying vibrational...

Regional and disease-related differences in properties of the equine temporomandibular joint disc

Derek Cissell
Temporomandibular joint (TMJ) disorders are increasingly recognized in animals. The articular disc plays a major role in TMJ disorders in people, but its role in the pathogenesis of TMJ disease in animals is not well understood. This study characterizes properties of the equine TMJ disc, including regional variation within discs as well as differences in properties associated with naturally-occurring TMJ osteoarthritis.

Incipits for the Catalogue of the Works of Hector Berlioz, Second edition, digital

Jonathan Minnick & D. Kern Holoman
This collection of PDFs contains all of the incipits for the Catalogue of the Works of Hector Berlioz, Second edition, digital, edited by D. Kern Holoman and Jonathan Minnick. Contents used with permission from Bärenreiter-Verlag / Kassel-Basel-London-New York-Praha / www.barenreiter.com

Defining hydrogel properties to instruct lineage- and cell-specific mesenchymal differentiation

Kent Leach
The maintenance and direction of stem cell lineage after implantation remains challenging for clinical translation. Aggregation and encapsulation into instructive biomaterials after preconditioning can bolster retention of differentiated phenotypes. Since these procedures do not depend on cell type or lineage, we hypothesized we could use a common, tunable platform to engineer formulations that retain and enhance multiple lineages from different cell populations. To test this, we varied alginate stiffness and adhesive ligand content, then encapsulated...

Data associated with manuscript \"Predicting wave-induced sediment resuspension at the perimeter of lakes using a steady-state spectral wave model\"

Derek Roberts, S. Geoffrey Schladow, Simon Hook, Shohei Watanabe & Patricio Moreno-Casas
This repository includes data associated with the manuscript, "Predicting wave-induced sediment resuspension at the perimeter of lakes using a steady-state spectral wave model," currently in press at Water Resources Research as of January 2019. Following American Geophysical Union standards, this repository serves to publically share all data associated with the manuscript. Plain lanuage summary of the manuscript: A tool that describes lake-wide wave conditions as a function of combinations of wind speeds and directions is...

Signatures of Environmental Adaptation During Range Expansion of Wild Common Bean (Phaseolus vulgaris)

Paul Gepts
Landscape genomics integrates population genetics with landscape ecology, allowing the identification of putative molecular determinants involved in environmental adaptation across the natural geographic and ecological range of populations. Wild Phaseolus vulgaris, the progenitor of common bean (P. vulgaris), has a remarkably extended distribution over 10,000 km from northern Mexico to northwestern Argentina. Earlier research has shown that this distribution represents a range expansion from Mesoamerica to the southern Andes through several discrete migration events and...

Penn World Table 9.1

Robert Inklaar Robert C. Feenstra

Bacteria isolated from bengal cat (Felis catus × Prionailurus bengalensis) anal sac secretions produce volatile compounds associated with animal signaling

Mei Yamaguchi, Guillaume Jospin, Holly Ganz, David Coil, Jonathan Eisen, Adrienne Cho, Thant Zaw, Mitchell McCartney & Cristina Davis
Anal sacs are an important odor producing organ found across the mammalian Order Carnivora. Secretions from the anal sac may be used as chemical signals by animals for behaviors ranging from defense to species recognition to signaling reproductive status. In addition, a recent study suggests that domestic cats utilize short-chain free fatty acids in anal sac secretions for individual recognition. The fermentation hypothesis is the idea that symbiotic microorganisms living in association with animals contribute...

Measurements from the Fire Influence on Regional and Global Environments Experiment (FIREX) Fire Lab Mini Chamber Experiment

Christopher Cappa, Christopher Lim, David Hagan & Jesse Kroll
All experiments were conducted during the Fire Influence on Regional to Global Environments Experiment (FIREX) lab study, which took place at the Missoula Fire Sciences Lab in Missoula, MT, USA during November, 2016. Experiments focused on refining our understanding of emissions and short timescale processing. The focus was on measuring fuels or combustion conditions that are characteristic of the western U.S. that may be under-sampled by the fire research community. Numerous types of biomass were...

Data from: Evolution of sexually dimorphic pheromone profiles coincides with increased number of male-specific chemosensory organs in Drosophila prolongata

Yige Luo, Yuewei Zhang, Jean-Pierre Farine, Jean-François Ferveur, Santiago Ramírez & Artyom Kopp
Binary communication systems that involve sex-specific signaling and sex-specific signal perception play a key role in sexual selection and in the evolution of sexually dimorphic traits. The driving forces and genetic changes underlying such traits can be investigated in systems where sex-specific signaling and perception have emerged recently and show evidence of potential coevolution. A promising model is found in Drosophila prolongata, which exhibits a species-specific increase in the number of male chemosensory bristles. We...

One-dimensional models of radiation transfer in heterogeneous canopies: a review, re-evaluation, and improved model

Brian Bailey, María Ponce De León & E. Scott Krayenhoff
This dataset contains the project files and data output for the publication: Bailey, Brian; Ponce de León, María; Krayenhoff, E. Scott (2019), One-dimensional models of radiation transfer in heterogeneous canopies: A review, re-evaluation, and improved model. The file main.cpp contains the main program that sets up and runs the simulations. Output files are stored in the 'output' directory. The current version of the Helios source code can be downloaded at https://www.github.com/PlantSimulationLab/Helios

Data from: Anthropogenic Basin Closure and Groundwater Salinization (ABCSAL)

Richard Pauloo
Global food systems rely on irrigated agriculture, and most of these systems in turn depend on fresh sources of groundwater. In this study, we demonstrate that groundwater development, even without overdraft, can transform a fresh, open basin into an evaporation dominated, closed-basin system, such that most of the groundwater, rather than exiting via stream baseflow and lateral subsurface flow, exits predominantly by evapotranspiration from irrigated lands. In these newly closed hydrologic basins, just as in...

Genome Synteny Has Been Conserved Among the Octoploid Progenitors of Cultivated Strawberry Over Millions of Years of Evolution

Michael Hardigan, Mitchell Feldmann, Anne Lorant, Kevin Bird, Steven Knapp, Patrick Edger, Glenn Cole, Charlotte Acharya & Randi Famula
Allo-octoploid cultivated strawberry (Fragaria × ananassa) originated through a combination of polyploid and homoploid hybridization, domestication of an interspecific hybrid lineage, and continued admixture of wild species over the last 300 years. While genes appear to flow freely between the octoploid progenitors, the genome structures and diversity of the octoploid species remain poorly understood. The complexity and absence of an octoploid genome frustrated early efforts to study chromosome evolution, resolve subgenomic structure, and develop a...

Exploring the role of attitude in the acceptance of self-driving shuttles

YAN XING, Susan Handy, Giovanni Circella, Yunshi Wang & Farzad Alemi
Self-driving vehicles, as a revolution in mobility, are emerging and developing rapidly. However, public attitudes toward this new unproven technology are still uncertain. Given the significant influence of attitude toward a new technology on the intention to use it, the question arises as to why some people are in favor of this technology whereas others are not. Additionally, questions about the key attitudes influencing self-driving technology acceptance, where these attitudes come from, and how they...

Understanding Behavioral Responses of Wildlife to Traffic to Improve Mitigation Planning

Fraser Shilling
Creating and maintaining sustainable transportation systems depends in part on understanding and mitigating ecological impacts. Wildlife crossing structures (WCS) are often used to mitigate impacts on wildlife populations. WCS and existing structures may provide passage for multiple species, depending on their sensitivity to traffic disturbance and perception of the roadway. In a previous project, we found that traffic conditions and traffic noise could reduce WCS effectiveness in facilitating passage of diverse and sensitive species. In...

Correlated evolution of sex allocation and mating system in wrasses and parrotfishes

Jennifer Hodge, Francesco Santini & Peter Wainwright
In accordance with predictions of the size-advantage model, comparative evidence confirms that protogynous sex change is lost when mating behavior is characterized by weak size advantage. However, we lack comparative evidence supporting the adaptive significance of sex change. Specifically, it remains unclear whether increasing male size advantage induces transitions to protogynous sex change across species, as it can within species. We show that in wrasses and parrotfishes (Labridae), the evolution of protogynous sex change is...

Channel types predictions for the Sacramento River basin

Hervé Guillon, Colin F. Byrne, Belize Arela Albin Lane, Samuel Sandoval Solis & Gregory Brian Pasternack
Hydrologic and geomorphic classifications have gained traction in response to the increasing need for basin-wide water resources management. Regardless of the selected classification scheme, an open scientific challenge is how to extend information from limited field sites to classify tens of thousands to millions of channel reaches across a basin. To address this spatial scaling challenge, we leveraged machine learning to predict reach-scale geomorphic channel types using publicly available geospatial data.

Root and shoot variation in relation to potential intermittent drought adaptation of Mesoamerican wild common bean (Phaseolus vulgaris L.)

Paul Gepts, Jorge Carlos Berny Mier Y Teran, Enéas R Konzen, Viviana Medina, Antonia Palkovic, Andrea Ariani, Siu M. Tsai & Matthew E. Gilbert
• Background Wild crop relatives have been potentially subjected to stresses on an evolutionary time scale prior to domestication. Among these stresses, drought is one of the main factors limiting crop productivity and its impact is likely to increase under current scenarios of global climate change. We sought to determine to what extent wild common bean (Phaseolus vulgaris) exhibited adaptation to drought stress, whether this potential adaptation is dependent on the climatic conditions of the...

Data from: Fostering the use of zero and near zero emission vehicles in freight operations

Miguel Jaller, Leticia Pineda, Yasar Gueldas, Farzad Alemi & Irem Otay
California has put forward a number of goals to improve freight efficiency through the introduction and use of zero and near-zero emission vehicles. However, the technical and operational characteristics, market readiness, and other factors related to these technologies can be very different. Therefore, the most appropriate option for different uses (e.g., last mile, long-haul distribution) and users’ preferences is not necessarily clear. This study focused on analyzing the factors to foster the adoption of zero...

Integrated Crop-Livestock Systems achieve comparable crop yields to specialized systems: a meta-analysis

Caitlin Peterson, Leonardo Deiss & Amelie Gaudin
Production systems that feature temporal and spatial integration of crop and livestock enterprises, also known as integrated crop-livestock systems (ICLS), have the potential to intensify production on cultivated lands and foster resilience to the effects of climate change without proportional increases in environmental impacts. Yet, crop production outcomes following livestock grazing across environments and management scenarios remain uncertain and a potential barrier to adoption, as producers worry about the effects of livestock activity on the...

Data from: Forests do not limit bumble bee foraging movements in a montane meadow complex

John Mola, Michael Miller, Sean O'Rourke & Neal Williams
Understanding the roles of habitat fragmentation and resource availability in shaping animal movement are integral for promoting species persistence and conservation. For insects like bumble bees, their movement patterns affect the survival and reproductive potential of their colonies as well as the pollen flow of plant species. However, our understanding of their mobility or the impact of putative barriers in natural environments is limited due to the technical difficulties of studying wild populations. We used...

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