348 Works

Tsimane physiological dysregulation data

Thomas Kraft, Jonathan Stieglitz, Benjamin Trumble, Angela Garcia, Hillard Kaplan & Michael Gurven
Humans have the longest post-reproductive lifespans and lowest rates of actuarial aging among primates. Understanding the links between slow actuarial aging and physiological change is critical for improving the human “healthspan”. Physiological dysregulation may be a key feature of aging in industrialized populations with high burdens of chronic “diseases of civilization”, but little is known about age trajectories of physiological condition in subsistence populations with limited access to public health infrastructure. To better characterize human...

Stepping into the past to conserve the future: archived skin swabs from extant and extirpated populations inform genetic management of an endangered amphibian

Andrew P. Rothstein, Roland A. Knapp, Gideon Bradburd, Daniel M. Boiano, Cheryl J. Briggs & Erica Bree Rosenblum
Moving animals on a landscape through translocations and reintroductions is an important management tool used in the recovery of endangered species, particularly for the maintenance of population genetic diversity and structure. Management of imperiled amphibian species rely heavily on translocations and reintroductions, especially for species that have been brought to the brink of extinction by the fungal pathogen, Batrachochytrium dendrobatidis. One striking example of disease-related declines and associated management efforts is in California’s Sequoia and...

Data from: Accounting for disturbance history in models: using remote sensing to constrain carbon and nitrogen pool spin‐up

Erin J. Hanan, Christina Tague, Janet Choate, Mingliang Liu, Crystal Kolden & Jennifer Adam
Disturbances such as wildfire, insect outbreaks, and forest clearing, play an important role in regulating carbon, nitrogen, and hydrologic fluxes in terrestrial watersheds. Evaluating how watersheds respond to disturbance requires understanding mechanisms that interact over multiple spatial and temporal scales. Simulation modeling is a powerful tool for bridging these scales; however, model projections are limited by uncertainties in the initial state of plant carbon and nitrogen stores. Watershed models typically use one of two methods...

From the Field to the Laboratory: The Theory-Practice Research of Peter J. Carnevale

Linda Putnam, Mara Olekalns, Donald Conlon & Carsten De Dreu

Which Bank is the \"Central\" Bank? An Application of Markov Theory to the Canadian Large Value Transfer System

Morten Bech, James Chapman & Rod Garrat
We use a method similar to Google's PageRank procedure to rank banks in the Canadian Large Value Transfer System (LVTS). Along the way we obtain estimates of the payment processing speeds for the individual banks. These differences in processing speeds are essential for explaining why observed daily distributions of liquidity differ from the initial distributions, which are determined by the credit limits selected by banks.

Data from: Abiotic and habitat drivers of tick vector abundance, diversity, phenology and human encounter risk in southern California

Andrew J. MacDonald
The distribution, abundance and seasonal activity of vector species, such as ticks and mosquitoes, are key determinants of vector-borne disease risk, and are strongly influenced by abiotic and habitat conditions. Despite the numerous species of tick vectors in the heavily populated North American West Coast, all but Ixodes pacificus, the primary vector of the Lyme disease spirochete, is poorly characterized with regard to seasonal activity patterns and fine scale drivers of distribution and abundance, particularly...

Data from: Crop pests and predators exhibit inconsistent responses to surrounding landscape composition

Daniel S. Karp, Rebecca Chaplin-Kramer, Timothy D. Meehan, Emily A. Martin, Fabrice DeClerck, Heather Grab, Claudio Gratton, Lauren Hunt, Ashley E. Larsen, Alejandra Martínez-Salinas, Megan E. O’Rourke, Adrien Rusch, Katja Poveda, Mattias Jonsson, Jay A. Rosenheim, Nancy A. Schellhorn, Teja Tscharntke, Stephen D. Wratten, Wei Zhang, Aaron L. Iverson, Lynn S. Adler, Matthias Albrecht, Audrey Alignier, Gina M. Angelella, Muhammad Zubair Anjum … & Yi Zou
The idea that noncrop habitat enhances pest control and represents a win–win opportunity to conserve biodiversity and bolster yields has emerged as an agroecological paradigm. However, while noncrop habitat in landscapes surrounding farms sometimes benefits pest predators, natural enemy responses remain heterogeneous across studies and effects on pests are inconclusive. The observed heterogeneity in species responses to noncrop habitat may be biological in origin or could result from variation in how habitat and biocontrol are...

Effects of social structure and management on risk of disease establishment in wild pigs

Anni Yang, Peter Schlichting, Bethany Wight, Wesley Anderson, Sarah Chinn, Mark Wilber, Ryan Miller, James Beasley, Raoul Boughton, Kurt VerCauteren, George Wittemyer & Kim Pepin
1. Contact heterogeneity among hosts determines invasion and spreading dynamics of infectious disease, thus its characterization is essential for identifying effective disease control strategies. Yet, little is known about the factors shaping contact networks in many wildlife species and how wildlife management actions might affect contact networks. 2. Wild pigs in North America are an invasive, socially-structured species that pose a health concern for domestic swine given their ability to transmit numerous devastating diseases such...

Supporting information for: Comprehensive high‐precision relocation of seismicity on the Island of Hawai‘i 1986–2018: seismicity animations

Robin Matoza, Paul Okubo & Peter Shearer
Abundant seismicity beneath the the Island of Hawai‘i from mantle depths to the surface plays a central role in understanding how volcanoes work, grow, and evolve at this intraplate oceanic hotspot. We perform systematic waveform cross‐correlation, cluster analysis, and relative relocation of 347,445 events representing 32 years of seismicity on and around the island from 1986 to 2018. We successfully relocate 275,009 (79%) events using ∼1.7 billion differential times (P aicnd S) from ∼128 million...

Data from: The Aquilegia genome provides insight into adaptive radiation and reveals an extraordinarily polymorphic chromosome with a unique history

Danièle L. Filiault, Evangeline S. Ballerini, Terezie Mandakova, Gökçe Aköz, Nathan J. Derieg, Jeremy Schmutz, Jerry Jenkins, Jane Grimwood, Shengqiang Shu, Richard D. Hayes, Uffe Hellsten, Kerrie Barry, Juying Yan, Sirma Mihaltcheva, Miroslava Karafiatova, Viktoria Nizhynska, Elena M. Kramer, Martin A. Lysak, Scott A. Hodges & Magnus Nordborg
The columbine genus Aquilegia is a classic example of an adaptive radiation, involving a wide variety of pollinators and habitats. Here we present the genome assembly of A. coerulea 'Goldsmith', complemented by high-coverage sequencing data from 10 wild species covering the world-wide distribution. Our analyses reveal extensive allele sharing among species, and demonstrate that introgression and selection played a role in the Aquilegia radiation. We also present the remarkable discovery that the evolutionary history of...

Data from: Fossil dermal denticles reveal the pre-exploitation baseline of a Caribbean coral reef shark community

Erin Dillon, Douglas McCauley, Jorge Manuel Morales-Saldaña, Nicole Leonard, Jian-Xin Zhao & Aaron O'Dea
Pre-exploitation shark baselines and the history of human impact on coral reef-associated shark communities in the Caribbean are poorly understood. We recovered shark dermal denticles from mid-Holocene (~7 ka) and modern reef sediments in Bocas del Toro, Caribbean Panama to reconstruct an empirical shark baseline before major human impact and quantify how much the modern shark community in the region had shifted from this historical reference point. We found that denticle accumulation rates, a proxy...

Detecting an effect of group size on individual responses to neighboring groups in gray-cheeked mangabeys (Lophocebus albigena)

Michelle Brown
Evolutionary game theory posits that competitive ability affects the initiation of conflicts. When contests occur among groups, competitive ability is generally measured as the size of the group and larger groups are expected to win against smaller groups. However, in some cases, individual participation during intergroup conflicts appears unaffected by competitive ability. To test whether these instances might be due to an unduly strict definition of participation, I re-evaluate the responses of grey-cheeked mangabeys (Lophocebus...

Structural insights of the conserved “priming loop” of hepatitis B virus pre-genomic RNA

Regan M. LeBlanc, Wojciech K. Kasprzak, Andrew P. Longhini, Lukasz T. Olenginski, Fardokht Abulwerdi, Stefano Ginocchio, Brigit Shields, Julie Nyman, Maryia Svirydava, Claudia Del Vecchio, Joseph Ivanic, John S. Schneekloth, Bruce A. Shapiro, Theodore Kwaku Dayie & Stuart F. J. Le Grice
Initiation of protein-primed (-) strand DNA synthesis in hepatitis B virus (HBV) requires interaction of the viral polymerase with a cis-acting regulatory signal, designated epsilon (ε), located at the 5′-end of its pre-genomic RNA (pgRNA). Binding of polymerase to ε is also necessary for pgRNA encapsidation. While the mechanistic basis of this interaction remains elusive, mutagenesis studies suggest its internal 6-nt “priming loop” provides an important structural contribution. ε might therefore be considered a promising...

Analysis Data for \"Identifying and characterizing pesticide use on 9,000 fields of organic agriculture\"

Ashley Larsen, Sofie McComb, Claire Powers & Sofie McComb
We identify the location of ~9,000 organic fields from 2013 — 2019 using field-level crop and pesticide use data, along with state certification data, for Kern County, CA, one of the US’ most valuable crop producing counties. We parse apart how being organic relative to conventional affects decisions to spray pesticides and, if spraying, how much to spray. We show the expected probability of spraying any pesticides is reduced by about 30 percentage points for...

Estimating Policy Functions in Payments Systems Using Reinforcement Learning

Pablo S. Castro, Ajit Desai, Han Du, Rodney Garratt & Francisco Rivadeneyra
We demonstrate the ability of reinforcement learning techniques to estimate the best-response functions of banks participating in high-value payments systems—a real-world strategic game of incomplete information.

Stimulus-dependent representational drift in primary visual cortex

Tyler Marks & Michael Goard
To produce consistent sensory perception, neurons must maintain stable representations of sensory input. However, neurons in many regions exhibit progressive drift across days. Longitudinal studies have found stable responses to artificial stimuli across sessions in visual areas, but it is unclear whether this stability extends to naturalistic stimuli. We performed chronic 2-photon imaging of mouse V1 populations to directly compare the representational stability of artificial versus naturalistic visual stimuli over weeks. Responses to gratings were...

Variation in salinity tolerance and water use strategies in an introduced woody halophyte (Tamarix spp.)

Randy Long, Carla D'Antonio, Tom Dudley & Kevin Hultine
1. The form and function of terrestrial plants is largely governed by the availability of water, with plants in water limited environments expressing traits minimizing water loss and tissue damage during drought. Areas with high salinity are analogous to those with low water availability, even where water is abundant. We evaluated variation in salinity tolerance and water use strategies in an introduced halophytic shrub, Tamarix spp by measuring gas exchange rates, biomass accumulation, and turgor...

Multilingual BERT, Ergativity, and Grammatical Subjecthood

Isabel Papadimitriou, Ethan A. Chi, Richard Futrell & Kyle Mahowald

Sex differences in behavioural and anatomical estimates of visual acuity in the green swordtail Xiphophorus helleri

Eleanor M Caves, Fanny De Busserolles & Laura A Kelley
Among fishes in the family Poeciliidae, signals such as colour patterns, ornaments, and courtship displays play important roles in mate choice and male-male competition. Despite this, visual capabilities in Poeciliids are understudied, in particular visual acuity, the ability to resolve detail. We used three methods to quantify visual acuity in male and female green swordtails (Xiphophorus helleri), a species in which body size and the length of the male's extended caudal fin ('sword') serve as...

Wild Pig Management at the Jack and Laura Dangermond Preserve

Shuhan Song, Peter Omasta, Benson Truong & AJ Zekanoski
This dataset was created for the Wild Pig Management at the Jack and Laura Dangermond Preserve, a group project by Bren School of Environmental Science and Management at the University of California, Santa Barbara. The project includes a population study of wild pigs (Sus scrofa) and a cost analysis of three management scenarios. For the wild pig population study, this dataset contains pig count data created by tagging camera trap photos between October 2013 to...

Data from: Collective behavior and colony persistence of social spiders depends on their physical environment

Ambika Kamath, Skylar D. Primavera, Colin M. Wright, Grant N. Doering, Kirsten A. Sheehy, Noa Pinter-Wollman & Jonathan N. Pruitt
The physical environment occupied by group-living animals can profoundly affect their cooperative social interactions and therefore their collective behavior and success. These effects can be especially apparent in human-modified habitats, which often harbor substantial variation in the physical environments available within them. For nest-building animal societies, this influence of the physical environment on collective behavior can be mediated by the construction of nests—nests could either buffer animal behavior from changes in the physical environment or...

The release of inertial instability near an idealized zonal jet

Callum Thompson & David M. Schultz
Inertial instability is a hydrodynamic instability that occurs in strong anticyclonic flow and is typically diagnosed by negative absolute vorticity in the Northern Hemisphere. As such, inertial instability is often observed on the anticyclonic-shear side of jet streams, yet the release of the instability in this environment is still poorly understood. We simulate the release of inertial instability near an idealized midlatitude zonal jet compared a control simulation with no instability. We find that the...

Data for: Sex-specific differences in swimming, aerobic metabolism, and recovery from exercise in adult coho salmon (Oncorhynchus kisutch) across ecologically relevant temperatures

Krista Kraskura, Emily Hardison & Erika Eliason
Adult female Pacific salmon can have highermigrationmortality rates thanmales, particularly at warm temperatures. However, the mechanisms underlying this phenomenon remain a mystery. Given the importance of swimming energetics on fitness, we measured critical swim speed, swimming metabolism, cost of transport, aerobic scope (absolute and factorial) and exercise recovery in adult female and male coho salmon (Oncorhynchus kisutch) held for 2 days at 3 environmentally relevant temperatures (9oC, 14oC, 18oC) in fresh water. Critical swimming performance...

Data on Authorship Gender in Ranked, Unranked, and Interdisciplinary Philosophy Journals (JSTOR Database, 1900-2010)

Sherri Conklin, Nicole Hassoun, Michael Nekrasov & Jevin West
This data includes information on authorship gender in Leiter Ranked, Unranked, and Interdisciplinary Philosophy Journals between 1900 & 2010.

“Take my word for it”: Group Texts and Testimonials Enhance State and Federal Student Aid Applications

Jason Jabbari, Stephen Roll, Sam Bufe & Jessica McKay

Registration Year

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  • University of California, Santa Barbara
  • Stanford University
  • University of Hawaii at Manoa
  • University of Washington
  • University of California Los Angeles
  • Oregon State University
  • University of California, Berkeley
  • United States Geological Survey
  • University of California, Santa Cruz
  • Pennsylvania State University