69 Works

Thermal camera data

Haoyu Niu & Tiebiao Zhao
TIR flight 4 2:17pm pome 30m 1011 flight 5 2:44pm peach 30m 1887 flight 6 3:24pm peach 60m 2990 flight 7 4:15pm onion 15m 4093

Environmental correlates of phenotypic evolution in ecologically diverse Liolaemus lizards

Danielle Edwards, Luciano Avila, Lorena Martinez, & Mariana Morando
Evolutionary correlations between phenotypic and environmental traits characterize adaptive radiations. However, the lizard genus Liolaemus, one of the most ecologically diverse terrestrial vertebrate radiations on earth, has so far shown limited or mixed evidence of adaptive diversification in phenotype. Restricted use of comprehensive environmental data, incomplete taxonomic representation and not considering phylogenetic uncertainty may have led to contradictory evidence. We compiled a 26 taxon dataset for the L. gracilis species group, representing much of the...

On the social and cognitive dimensions of wicked environmental problems characterized by conceptual and solution uncertainty

Felber J. Arroyave B., Oscar Yandy Romero Goyeneche, Meredith Gore, Gaston Heimeriks, Jeffrey Jenkins & Alexander M. Petersen
We develop a quantitative framework for understanding the class of wicked problems that emerge at the intersections of “natural”, social, and technological complex systems. Wicked problems reflect our incomplete understanding of interdependent global systems and the systemic risk they pose; such problems escape solutions because they are often ill-defined, and thus misidentified and under-appreciated by communities of problem-solvers. While there are well-documented benefits to tackling boundary-crossing problems from various viewpoints, the integration of diverse approaches...

Multi-scale drivers of soil resistance predict vulnerability of seasonally wet meadows to trampling by pack stock animals in the Sierra Nevada, USA

Joy S. Baccei, Mitchel P. McClaran, Tim J. Kuhn & Stephen C. Hart
Background Meadow ecosystems have important ecological functions and support socioeconomic services, yet are subject to multiple stressors that can lead to rapid degradation. In the Sierra Nevada of the western USA, recreational pack stock (horses and mules) use in seasonally wet mountain meadows may lead to soil trampling and meadow degradation, especially when soil water content is high and vegetation is developing. Methods In order to improve the ability to predict meadow vulnerability to soil...

Data from: Measuring attitude towards chemistry, biology, and math at a Hispanic-serving institution

Erik Menke & Jordan Chang
This work describes the evaluation of the Attitude toward the Subject of Chemistry Inventory (ASCI), as well as two modifications (one for attitude toward math and one for attitude toward biology), for college students at a Hispanic Serving Institution. Confirmatory factor analysis supported a two-factor structure, similar to an existing model of a revised version of the ASCI, for all three instruments. These instruments show little change in student attitude with respect to biology, chemistry,...

Data for: Rapid alignment updating with Extensiphy

Jasper T. Field
1. High throughput sequencing has become commonplace in evolutionary studies. Large, rapidly collected genomic datasets are used to capture biodiversity and for monitoring global and national scale disease transmission patterns, among many other applications. Updating homologous sequence datasets with new samples is cumbersome, requiring excessive program runtimes and data processing. We describe Extensiphy, a bioinformatics tool to efficiently update multiple sequence alignments with whole-genome short-read data. Extensiphy performs reference based sequence assembly and alignment in...

Yangtze River basin ecological and hydrogeomorphic data relevant to regional hydrologic classification for sustainable dam operation

Britne Clifton, Anna Rallings & Joshua Viers
While some rivers have been modified and regulated for centuries requiring recovery efforts and restoration, other rivers are currently under development and facing the challenges of environmental degradation and loss of ecological functionality. As countries, such as China, expand current infrastructure to develop and construct flood reduction, hydropower, and water storage facilities along their rivers, the threat of detrimental ecological impacts expands too. To address these pressing challenges, this data set was used in the...

2009 modeled electricity prices from HiGRID for the California grid

Brian Tarroja, Joshua H. Viers, Aditya Sood & Gustavo Facincani Dourado
This dataset was developed to be used in the CenSierraPywr model, created for the project "Optimizing Hydropower Operations While Sustaining Ecosystem Functions in a Changing Climate", for the California Energy Commission. The model that includes hydroeconomic optimization for hydropower production in the Stanislaus and Upper San Joaquin River basins in the Central Sierra Nevada, California. The two basins have high elevation reservoirs that are typically operated to maximize revenue from hydropower production. Therefore, to better...

Data from: Ecological and environmental stability in offshore Southern California Marine Basins through the Holocene

Hannah Palmer, Tessa Hill, Esther Kennedy, Peter Roopnarine, Sonali Langlois, Katherine Reyes & Lowell Stott
In the face of ongoing marine deoxygenation, understanding timescales and drivers of past oxygenation change is of critical importance. Marine sediment cores from tiered silled basins provide a natural laboratory to constrain timing and implications of oxygenation changes across multiple depths. Here, we reconstruct oxygenation and environmental change over time using benthic foraminiferal assemblages from sediment cores from three basins across the Southern California Borderlands: Tanner Basin (EW9504-09PC, 1194 m water depth), San Nicolas Basin...

Data and code for: Microalgae-blend tilapia feed eliminates fishmeal and fish oil, improves growth, and is cost viable

Pallab Sarker, Anne Kapuscinski, Brandi McKuin, Devin Fitzgerald, Hannah Nash & Connor Greenwood
Aquafeed manufacturers have reduced, but not fully eliminated, fishmeal and fish oil and are seeking cost competitive replacements. We combined two commercially available microalgae, to produce a high-performing fish-free feed for Nile tilapia (Oreochromis niloticus) —the world’s second largest group of farmed fish. We substituted protein-rich defatted biomass of Nannochloropsis oculata (leftover after oil extraction for nutraceuticals) for fishmeal and whole cells of docosahexaenoic acid (DHA)-rich Schizochytrium sp. as substitute for fish oil. Here, we...

Root uptake under mismatched distributions of water and nutrients in the root zone

Jing Yan, Nathaniel Bogie & Teamrat Ghezzehei
Most plants derive their water and nutrient needs from soils, where the resources are often scarce, patchy, and ephemeral. It is not uncommon for plant roots to encounter mismatched patches of water-rich and nutrient-rich regions in natural environments. Such an uneven distribution of resources necessitates plants to rely on strategies to explore and acquire nutrients from relatively dry patches. We conducted a laboratory study that elucidates the biophysical mechanisms that enable this adaptation. The roots...

Data from: Probing the ecology and climate of the Eocene Southern Ocean with sand tiger sharks Striatolamia macrota

Sora Kim, Sarah Zeichner, Albert Colman, Howie Scher, Jürgen Kriwet & Thomas Mörs
During the Eocene, the Earth climate system transitioned from greenhouse to icehouse conditions. Central to many explanations is the Southern Ocean—where tectonic configurations influenced oceanic gateways, ocean circulation reduced heat transport, and/or greenhouse gas declines prompted glaciation. To date, few studies have explored the implications of this climate transition on high latitude, marine vertebrates. Seymour Island near the Antarctic Peninsula preserves a rich, diverse fossil assemblage in the Tertiary Eocene La Meseta (TELM) Formation (Fm)....

Southern Sierra Critical Zone Observatory (SSCZO), Providence Creek meteorological data, soil moisture and temperature, snow depth and air temperature

Roger Bales, Matt Meadows, Erin Stacy, Martha Conklin, Xiande Meng & SSCZO Southern Sierra Critical Zone Observatory
Snow depth, soil moisture and soil temperature are measured at lower Providence South facing (LowMetS) and North facing (LowMetN), Upper Providence South facing (UpMetS), North facing (UpMetN) and Flat aspect (UpMetF), and Subcatchment basin P301 (P301) with a wireless sensor network, using a Campbell Scientific logger to control peripheral devices. Snow depth is measured in the open, at the drip edge and under canopies. Soil moisture and temperature are measured at 10, 30, 60 and...

Electronic properties of oligothiophenes

Chee-Kong Lee, Chengqiang Lu, Yue Yu, Qiming Sun, Chang-Yu Hsieh, Shengyu Zhang, Qi Liu & Liang Shi
Despite the remarkable progress of machine learning (ML) techniques in chemistry, modeling the optoelectronic properties of long conjugated oligomers and polymers with ML remains challenging due to the difficulty in obtaining sufficient training data. Here we use transfer learning to address the data scarcity issue by pre-training graph neural networks using data from short oligomers. With only a few hundred training data, we are able to achieve an average error of about 0.1 eV for...

A local and global sensitivity analysis of a mathematical model of coagulation and platelet deposition under flow

Kathryn Link, Michael Stobb, Jorge Di Paola, Keith Neeves, Aaron Fogelson, Suzanne Sindi & Karin Leiderman
The hemostatic response involves blood coagulation and platelet aggregation to stop blood loss from an injured blood vessel. The complexity of these processes make it difficult to intuit the overall hemostatic response without quantitative methods. Mathematical models aim to address this challenge but are often accompanied by numerous parameters choices and thus need to be analyzed for sensitivity to such choices. Here we use local and global sensitivity analyses to study a model of coagulation...

SWIR Camera in Walnut site 120 meters

Haoyu Niu, Tiebiao Zhao & YangQuan Chen
SWIR 120 meters

RGB Camera Walnut Site 60 meters

Haoyu Niu, Tiebiao Zhao & YangQuan Chen
RGB Camera Walnut Site 60 meters

CoreShellShell, a quantum dot excitonic energy and charge density calculator

Anne Kelley
This program calculates electron and hole charge distributions for a spherical semiconductor quantum dot that may have up to three different materials in concentric shells (core-barrier-shell), each with different valence and/or conduction band potentials. It calculates the four lowest s-type (zero angular momentum) electron wavefunctions and the eight lowest s-type hole wavefunctions using the effective mass approximation particle in a sphere model. It then uses the excitons produced from these pairs of single-particle wavefunctions as...

Strategic Communication to Achieve Carbon Neutrality within the University of California

Jon Christensen, Roger Bales, Alex Heeren, Heather Hodges, Lisa Leombruni & Stacy Rebich-Hespanha

Data from: An initial comparative genomic autopsy of wasting disease in sea stars

Dannise V. Ruiz‐Ramos, Lauren M. Schiebelhut, Katharina J. Hoff, John P. Wares & Michael N. Dawson
Beginning in 2013, sea stars throughout the Eastern North Pacific were decimated by wasting disease, also known as ‘asteroid idiopathic wasting syndrome’ (AIWS) due to its elusive etiology. The geographic extent and taxonomic scale of AIWS meant events leading up to the outbreak were heterogeneous, multifaceted, and oftentimes unobserved; progression from morbidity to death was rapid, leaving few tell-tale symptoms. Here we take a forensic genomic approach to discover candidate genes that may help explain...

Computed tomography reveals hip dysplasia in the extinct Pleistocene saber-tooth cat Smilodon

Mairin Balisi, Abhinav Sharma, Carrie Howard, Christopher Shaw, Robert Klapper & Emily Lindsey
Reconstructing the behavior of extinct species is challenging, particularly for those with no living analogues. However, damage preserved as paleopathologies on bone can record how an animal moved in life, potentially reflecting behavioral patterns. Here, we assess hypothesized etiologies of pathology in a pelvis and associated right femur of a Smilodon fatalis saber-toothed cat, one of the best-studied species from the Pleistocene-age Rancho La Brea asphalt seeps, California, USA, using visualization by computed tomography (CT)....

Data from: Identifying genetic variation associated with environmental variation and drought-tolerance phenotypes in ponderosa pine

Mengjun Shu & Emily Moran
Background Genotype-to-environment (G2E) association analysis coupled with genotype-to-phenotype (G2P) association analysis promises exciting advances towards discovering genes responsible for local adaptation. We combine G2E and G2P analysis with gene annotation in Pinus ponderosa (ponderosa pine), an ecologically and economically important conifer that lacks a sequenced genome, to identify genetic variants and gene functions that may be associated with local adaptation to drought. Results We identified SNP markers in 223 genotypes from across the Sierra Nevada...

Thermal camera in walnut site 60 meters

Haoyu Niu, Tiebiao Zhao & YangQuan Chen
Thermal camera in walnut site 60 meters

CALeDNA Anacapa/CRUX Dat Container (Linux/HPC)

Maxwell Ogden
As part of the CALeDNA project this includes Anacapa Container which includes all the necessary software dependencies to run the Anacapa and CRUX pipelines on Linux/HPCs.

Registration Year

  • 2022
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Resource Types

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  • University of California, Merced
  • University of California, Santa Cruz
  • University of California, Davis
  • University of California, Berkeley
  • University of California, Irvine
  • Colorado School of Mines
  • Georgetown University
  • University of Colorado Boulder
  • University of Arizona
  • University of Vienna