38 Works

Employee airline travel preferences survey data, UC Davis GreenFLY project

Annamaria Amenta & Angela Sanguinetti
This survey data is from a study exploring the potential to promote lower-emissions air travel by providing consumers with information about the carbon emissions of possible flight choices in the context of online flight search and booking. We surveyed over 450 faculty, researchers, and staff at the University of California, Davis, and asked them to choose among hypothetical flight options for a domestic and an international university-related business trip. Emissions estimates for different flight alternatives...

Genital morphology and the mechanics of copulation in the millipede genus Pseudopolydesmus (Diplopoda: Polydesmida: Polydesmidae)

Xavier Zahnle, Petra Sierwald, Stephanie Ware & Jason Bond
Mate choice, copulation, genital morphology, and sperm storage are not very well understood in millipedes. The use of three-dimensional x-ray computed tomography (µCT) provides new morphological data regarding millipede reproductive systems in both the female and male, including chitinous sclerites and membranes, muscles, glands, oviducts, and sperm conduits. Here we present a complete integrated account of the morphology and function of the female genital organs in the family Polydesmidae (Diplopoda: Polydesmida) using µCT, UV fluorescence...

Bicycling comfort video experiment

Dillon Fitch, Jane Carlen & Susan Handy
This tabular data can be used to evaluate perceived bicycling comfort on distinct state highways in California. The highway settings are primarily urban, but vary in traffic conditions, lane configurations, speeds, and bicycling infrastructure. The data include survey responses to video clips of these state highways along with a series of additional survey data that co-varies with the video survey responses.

Low coverage whole genomes of Calypte anna across California, USA

Nicole Adams, Ruta Bandivadekar, Michael Clark, Lisa Tell & Rachael Bay
Recently, it was suggested that North America has lost nearly 30% of its avifauna since the 1970s. To mitigate such avian population declines, many birds in California are protected under the Migratory Bird Treaty Act and California Fish and Game Code. Avian presence, therefore, at Caltrans infrastructure projects, especially bridge construction, has caused costly delays. To avoid this conflict and understand population-specific migration and nesting patterns, we used Anna’s hummingbird, Calypte anna, (a species whose...

Domestic Well Vulnerability to Drought Duration and Unsustainable Groundwater Management in California's Central Valley

Richard Pauloo, Helen Dahlke, Graham Fogg, Herve Guillon, Amanda Fencl & Alvar Escriva-Bou
Millions of Californians access drinking water via domestic wells, which are vulnerable to drought and unsustainable groundwater management. Groundwater overdraft and the possibility of longer drought duration under climate change threatens domestic well reliability, yet we lack tools to assess the impact of such events. Here, we leverage 943,469 well completion reports and 20 years of groundwater elevation data to develop a spatially-explicit domestic well failure model covering California's Central Valley. Our model successfully reproduces...

Accuracy of genomic selection and long-term genetic gain for resistance to Verticillium wilt in a genetically diverse strawberry population

Steven Knapp, Dominique Pincot, Michael Hardigan, Glenn Cole, Peter Henry, Thomas Gordon & Randi Famula
Verticillium wilt, a soil-borne disease caused by the fungal pathogen Verticillium dahliae, threatens strawberry (Fragaria × ananassa) production worldwide. The development of resistant cultivars has been a challenge since the disease was first reported on strawberry in the early 1900s. The empirical evidence suggests that genetic gains have not been negligible and that the genetics of resistance to this pathogen is quantitative. While resistant cultivars have been developed, a comparatively small percentage are highly resistant,...

Supporting data for the manuscript: Observations and modeling of the surface seiches of Lake Tahoe, USA

Derek Roberts, S. Geoffrey Schladow & Alexander Forrest
This data set was created to make the data associated with the manuscript Observations and modeling of the surface seiches of Lake Tahoe, USA, accepted for publication in Aquatic Sciences, publically available per journal convention. The publication abstract is shown below: A rich array of spatially complex surface seiche modes exists in lakes. While the amplitude of these oscillations is often small, knowledge of their spatio-temporal characteristics is valuable for understanding when they might be...

Is the USDA core collection of common bean representative of genetic diversity of the species, as assessed by SNP diversity?

Paul Gepts, Saarah Kuzay & Paige Hamilton
Core collections are envisioned to be a representative subset of larger germplasm collections. They were introduced to facilitate the characterization and use of these germplasm collections. The common bean (Phaseolus vulgaris) core collection of the USDA Western Regional Plant Introduction Station was one of the first ones to be established in the early 1990s. Here, we evaluate the representativity of this common bean collection in light of the availability of a SNP platform and new...

Effect of Drought Stress on the Genetic Architecture of Photosynthate Allocation and Remobilization in Pods of Common Bean (Phaseolus vulgaris L.), a Key Species for Food Security

Paul Gepts, Jorge Carlos Berny Mier Y Teran, Enéas R. Konzen, Antonia Palkovic, Siu M. Tsai, Idupulapati M. Rao & Stephen Beebe
Background: Common bean is the most important staple grain legume for direct human consumption and nutrition. It complements major sources of carbohydrates, including cereals, root crop, or plantain, as a source of dietary proteins. It is also a significant source of vitamins and minerals like iron and zinc. To fully play its nutritional role, however, its robustness against stresses needs to be strengthened. Foremost among these is drought, which commonly affects its productivity and seed...

Emergence of complex institutions in a large population of self-governing communities

Seth Frey
Most aspects of our lives are governed by large, highly developed institutions that integrate several governance tasks under one authority structure. But theorists differ as to the mechanisms that drive the development of such concentrated governance systems from rudimentary beginnings. Is the emergence of regime consolidation a symptom of the runaway capture by opportunists? Or does integration occur because a consolidated institution is better adapted to a complex environment? Here we examine the emergence of...

Initial application of the noise-sorted scanning clustering algorithm to the analysis of composition-dependent organic aerosol thermal desorption measurements

Christopher Cappa, Ziyue Li, Emma D'Ambro, Siegfried Schobesberger, John Shilling, Felipe Lopez-Hilfiker, Jiumeng Liu, Cassandra Gaston & Joel Thornton
The FIGAERO-CIMS (Filter Inlet for Gases and AEROsols + chemical ionization mass spectrometer) measures thermal desorption profiles for individual ions evolved from evaporation of organic aerosol components. Often, hundreds of individual thermograms are obtained, reflecting the compositional complexity of organic aerosol. We have developed a novel clustering algorithm, Noise-Sorted Scanning Clustering (NSSC), that provides a robust, reproducible analysis of the FIGAERO temperature-dependent mass spectral data. The NSSC allows for determination of thermal profiles for compositionally...

Data from: What is in a general plan? using natural language processing to read 461 California city general plans

Carl Stahmer & Catherine Brinkley
This repository contains all data outputs related to reasearch that analyzed General Plans from cities across the state of California to understand what topics are adressed and the spacial distribution of topic rerpresentation. We assembles a database of 421 California city-level General Plans and used Natural Language Processing to read their contents. The plans contained over 60 discrete topics and wer generally optimistic in sentiment. A quarter of the topics were reagionally specific. Housing is...

Survey data for: Planning and policymaking for TOD, transit, and AT in California cities

Elisa Barbour
This in-progress two-year research project for the California Department of Transportation, through the National Center for Sustainable Transportation, is assessing planning and policymaking for transit-oriented development , transit, and active transport in California cities located in the state's four largest regions, the San Francisco Bay, Los Angeles, San Diego, and Sacramento areas. The dataset we provide here is an anonymous version of our survey results of city planning directors in these regions, conducted between April...

Groove Loops: A Collection of Repeating Multi-Instrumental Patterns

Petr Janata
This dataset contains 456 musical stimuli used in the series of studies reported in: Janata, P., Peterson, J., Ngan, C., Keum, B., Whiteside, H., & Ran, S. (2018). Psychological and Musical Factors Underlying Engagement with Unfamiliar Music. Music Perception, 36(2), 175-200. doi:10.1525/mp.2018.36.2.175

Sex-specific evolution of relative leg size in Drosophila prolongata results from changes in the intersegmental coordination of tissue growth

David Michael Luecke & Artyom Kopp
Evolution of relative organ size is the most prolific source of morphological diversity, yet the underlying molecular mechanisms that modify growth control are largely unknown. Models where organ proportions have undergone recent evolutionary changes hold the greatest promise for understanding this process. Uniquely among Drosophila species, D. prolongata displays a dramatic, male-specific increase in the size of its forelegs relative to other legs. By comparing leg development between males and females of D. prolongata and...

Data from: Using an arbitrary moment predictor to investigate the optimal choice of prognostic moments in bulk cloud microphysics schemes

Adele A. Igel
Most bulk cloud microphysics schemes predict up to three standard properties of hydrometeor size distributions, namely, the mass mixing ratio, number concentration, and reflectivity factor in order of increasing scheme complexity. However, it is unclear whether this combination of properties is optimal for obtaining the best simulation of clouds and precipitation in models. In this study, a bin microphysics scheme has been modified to act like a bulk microphysics scheme. The new scheme can predict...

Functional variants of DOG1 control seed chilling responses and variation in seasonal life history strategies in Arabidopsis thaliana

Alejandra Martinez-Berdeja, Michelle Stitzer, Mark A. Taylor, Miki Okada, Exequiel Ezcurra, Daniel E. Runcie & Johanna Schmitt
The seasonal timing of seed germination determines a plant's realized environmental niche, and is important for adaptation to climate. The timing of seasonal germination depends on patterns of seed dormancy release or induction by cold and interacts with flowering time variation to construct different seasonal life histories. To characterize the genetic basis and climatic associations of natural variation in seed chilling responses and associated life history syndromes, we selected 559 fully-sequenced accessions of the model...

Impacts of caudal autotomy on personality

Marcus Michelangeli, Brooke Melki-Wegner, Kate Laskowski, Bob Wong & David Chapple
Caudal autotomy, the voluntary shedding of a tail, is a last-ditch strategy used by many lizard species to escape from predators. There are several costs associated with caudal autotomy that may cause lizards to make behavioral adjustments during tail regeneration. These behavioral changes may be dependent upon individual differences in response to autotomy (e.g. trait or state-dependent differences) and/or the degree of tail loss, as many lizards have the capacity to only partially shed their...

Life Cycle Modeling of Tech & Strategies for a Sustainable Freight System in California

Hanjiro Ambrose & Alissa Kendall
California’s freight transportation system is a vital part of the state’s economy, but generates a high portion of local pollution in parts of the state with poor air quality. In recognition of these challenges, Executive Order B-32-15 encourages adoption of advanced vehicle technologies and infrastructure, as well as the use of alternative energy and fuels in the freight sector. These measures are echoed in the state’s Sustainable Freight Action Plan. Most emissions reductions from freight...

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

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...

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...

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...

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...

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...

Registration Year

  • 2019

Resource Types

  • Dataset


  • University of California, Davis
  • United States Department of Agriculture
  • University of Sao Paulo
  • California Lutheran University
  • University of Washington
  • University of Eastern Finland
  • Washington State University Vancouver
  • Field Museum of Natural History
  • Turku PET Centre
  • Los Alamos National Laboratory