37 Works

Numerical simulation of cool hydrothermal processes in the upper volcanic crust beneath a marine sediment pond: North Pond, North Atlantic Ocean

Adam N. Price, Andrew T. Fisher, Philip H. Stauffer & Carl W. Gable
Low temperature hydrothermal systems hosted in the volcanic oceanic crust are responsible for ~20% of Earth's global heat loss. Marine sediment ponds comprise an important type-setting on young ridge flanks where hydrothermal circulation advectively extracts lithospheric heat, but the nature of coupled fluid-heat transport in these settings remains poorly understood. Here we present coupled (fluid-heat) numerical simulations of ocean crustal hydrogeology in and below North Pond, a sediment pond on ~8 Ma seafloor of the...

Dataset associated with 'Quantification of Ebola virus replication kinetics in vitro'

Laura Liao, Jonathan Carruthers, Sophie J. Smither, , Simon A. Weller, Diane Williamson, Thomas R. Laws, Isabel Garcia-Dorival, Julian Hiscox, Benjamin P. Holder, Catherine Beauchemin, Alan S. Perelson, MARTIN LOPEZ-GARCIA, Grant Lythe, John Barr & carmen molina-parís
This dataset is associated with ‘Quantification of Ebola virus replication kinetics in vitro’. In the paper, a mathematical model is developed to describe the replication of Ebola virus in Vero cells. The model is parametrised using measurements of total and infectious extracellular virus at three different multiplicities of infection. The results provide insights into the distribution of time an infected cell spends in the eclipse phase (the period between infection and the start of virus...

Rapid mineral precipitation during shear fracturing of carbonate-rich shale: Supporting xCT data

Anne Menefee, Bill Carey, Luke Frash, Wes Hicks & Brian Ellis
X-ray computed tomography data supporting the work presented in the manuscript "Rapid mineral precipitation during shear fracturing of carbonate-rich shales" (Journal of Geophysical Research-Solid Earth, 2020) by Anne H. Menefee, Nathan J. Welch, Luke P. Frash, Wes Hicks, J. William Carey, and Brian R. Ellis. Descriptions are provided with each sample and xCT data set but please refer to the manuscript for more detailed information on samples and scanning parameters.

Data from: Avian demographic responses to drought and fire: a community-level perspective

James F. Saracco, Stephen M. Fettig, George L. San Miguel, David W. Mehlman, Brent E. Thompson & Steven K. Albert
Drought stress is an important consideration for wildlife in arid and semi-arid regions under climate change. Drought can impact plant and animal populations directly, through effects on their physiology, as well as indirectly through effects on vegetation productivity and resource availability, and by creating conditions conducive to secondary disturbance, such as wildfire. We implemented a novel approach to understanding community-level demographic responses of birds and their habitats to these stressors in the context of climate...

Data from: Immunoglobulin detection in wild birds: effectiveness of three secondary anti-avian IgY antibodies in direct ELISAs in 41 avian species

Carol A. Fassbinder-Orth, Travis E. Wilcoxen, Tiffany Tran, Raoul K. Boughton, Jeanne M. Fair, Erik K. Hofmeister, Jennifer L. Grindstaff & Jen C. Owen
1.Immunological reagents for wild, non-model species are limited or often non-existent for many species. 2. In this study, we compare the reactivity of a new anti-passerine IgY secondary antibody with existing secondary antibodies developed for use with birds. Samples from 41 species from the following six avian orders were analysed: Anseriformes (1 family, 1 species), Columbiformes (1 family, 2 species), Galliformes (1 family, 1 species), Passeriformes (16 families, 34 species), Piciformes (1 family, 2 species)...

TCCON data from Manaus (BR), Release GGG2020.R0

M. K. Dubey, B. G. Henderson, N. T. Allen, J.-F. Blavier, C. M. Roehl & D. Wunch
The Total Carbon Column Observing Network (TCCON) is a network of ground-based Fourier Transform Spectrometers that record direct solar absorption spectra of the atmosphere in the near-infrared. From these spectra, accurate and precise column-averaged abundances of atmospheric constituents including CO2, CH4, N2O, HF, CO, H2O, and HDO, are retrieved. This is the GGG2020 data release of observations from the TCCON station at Manaus, Brazil

Data for \"Quantum well states in fractured crystals of the heavy fermion material CeCoIn5\"

Nicolas Gauthier, Jonathan A. Sobota, Makoto Hashimoto, Heike Pfau, Dong-Hui Lu, Eric D. Bauer, Filip Ronning, Patrick S. Kirchmann & Zhi-Xun Shen
This HDF5 file contains the data that supports the findings of "Quantum well states in fractured crystals of the heavy fermion material CeCoIn5" authored by N. Gauthier, J. A. Sobota, M. Hashimoto, H. Pfau, D.-H. Lu, E. D. Bauer, F. Ronning, P. S. Kirchmann, and Z.-X. Shen. Preprint available at https://arxiv.org/abs/2006.16301.

Data from: Sexual selection constrains the body mass of male but not female mice

James S. Ruff, Douglas H. Cornwall, Linda C. Morrison, Joseph W. Cauceglia, Adam C. Nelson, Shannon M. Gaukler, Shawn Meagher, Lara S. Carroll & Wayne K. Potts
Sexual size dimorphism results when female and male body size is influenced differently by natural and sexual selection. Typically, in polygynous species larger male body size is thought to be favored in competition for mates and constraints on maximal body size are due to countervailing natural selection on either sex; however, it has been postulated that sexual selection itself may result in stabilizing selection at an optimal mass. Here we test this hypothesis by retrospectively...

Data from: The plant microbiome and native plant restoration: the example of native mycorrhizal fungi

Liz Koziol, Peggy A. Schultz, Geoffrey L. House, Jonathan T. Bauer, Elizabeth L. Middleton & James D. Bever
Ecological restoration efforts can increase the diversity and function of degraded areas. However, current restoration practices cannot typically re-establish the full diversity and species composition of remnant plant communities. We present evidence that restoration quality can be improved by reintroducing key organisms from the native plant microbiome. In particular, root symbionts called arbuscular mycorrhizal fungi are critical in shaping grassland communities, but are sensitive to anthropogenic disturbance, which may pose a problem for grassland restoration....

Data from: Population and genetic outcomes 20 years after reintroducing bobcats (Lynx rufus) to Cumberland Island, Georgia USA

Duane Diefenbach, Leslie Hansen, Justin Bohling & Cassandra Miller-Butterworth
In 1988–1989, 32 bobcats Lynx rufus were reintroduced to Cumberland Island (CUIS), Georgia, USA, from which they had previously been extirpated. They were monitored intensively for 3 years immediately post-reintroduction, but no estimation of the size or genetic diversity of the population had been conducted in over 20 years since reintroduction. We returned to CUIS in 2012 to estimate abundance and effective population size of the present-day population, as well as to quantify genetic diversity...

Genetic diversity in two insular populations of bobcats (Lynx rufus)

Duane Diefenbach, Cassandra Miller-Butterworth, Jessie Edson, Leslie Hansen, James Jordan, Tess Gingery & Amy Russell
We documented changes in genetic diversity in an isolated, reintroduced population of bobcats on Cumberland Island (CUIS), Georgia, USA, compared to another bobcat population on Kiawah Island, South Carolina, USA, that was naturally established and experiences limited immigration from the mainland. We compared the predictions of a novel population viability analysis (PVA) to empirical estimates of abundance and genetic diversity on CUIS and used our PVA to identify management actions that are likely to support...

Islands Within Islands: Bacterial Phylogenetic Structure and Consortia in Hawaiian Lava Caves and Fumaroles

Rebecca Prescott, Tatyana Zamkovaya, Stuart Donachie, Diana Northup, Joseph Mendley, Natalia Monsalve, Jimmy Saw, Alan Decho, Patrick Chain & Penelope Boston
Lava caves, tubes, and fumaroles in Hawai‘i present a range of volcanic, oligotrophic environments from different lava flows and host unexpectedly high levels of bacterial diversity. These features provide an opportunity to study the ecological drivers that structure bacterial community diversity and assemblies in volcanic ecosystems and compare the older, more stable environments of lava tubes, to the more variable and extreme conditions of younger, geothermally active caves and fumaroles. Using 16S rRNA amplicon-based sequencing...

TCCON data from Four Corners (US), Release GGG2020.R0

, , B. G. Henderson, N. T. Allen, C. M. Roehl, J.-F. Blavier, S. Love & D. Wunch
The Total Carbon Column Observing Network (TCCON) is a network of ground-based Fourier Transform Spectrometers that record direct solar absorption spectra of the atmosphere in the near-infrared. From these spectra, accurate and precise column-averaged abundances of atmospheric constituents including CO2, CH4, N2O, HF, CO, H2O, and HDO, are retrieved. This is the GGG2020 data release of observations from the TCCON station at Four Corners, NM, USA

Data for: Modeling the distribution of the endangered Jemez Mountains salamander (Plethodon neomexicanus) in relation to geology, topography, and climate

Andrew Bartlow, J. Tomasz Giermakowski, Paul Neville, Emily Schultz-Fellenz, Brandon Crawford, Anita Lavadie-Bulnes, Brent Thompson & Chuck Hathcock
The Jemez Mountains salamander (Plethodon neomexicanus; hereafter JMS) is an endangered salamander restricted to the Jemez Mountains in north-central New Mexico, United States. This strictly terrestrial species requires moist surface conditions for mating and foraging. Threats to its current habitat include fire suppression and ensuing severe fires, changes in forest composition, habitat fragmentation, and climate change. Forest composition changes resulting from reduced fire frequency and increased tree density suggest that its current aboveground habitat does...

Robust Links Minified JavaScript File

Shawn Jones, Martin Klein, Herbert Van de Sompel & Michael Nelson
Are you an author of web pages and you don't want your links to die? Link rot occurs when following a link yields a "404 Not Found" error message. Content drift occurs when the content at the end of the link changes over time, possibly to the point where it loses all similarity with the originally linked content. Robust Links addresses both of these problems by providing multiple pathways to revisit a link's original content,...

Manipulating plant microbiomes in the field: native mycorrhizae advance plant succession and improve native plant restoration

Liz Koziol, Jonathan Bauer, Eric Duell, Karen Hickman, Geoffrey House, Peggy Schultz, Alice Tipton, Gail Wilson & James Bever
The plant microbiome is critical to plant health and is degraded with anthropogenic disturbance. However, the value of re-establishing the native microbiome is rarely considered in ecological restoration. Arbuscular mycorrhizal (AM) fungi are particularly important microbiome components, as they associate with most plants, and later successional grassland plants are strongly responsive to native AM fungi. With five separate sites across the United States, we inoculated mid- and late successional plant seedlings with one of three...

Data from: String phase in an artificial spin ice

Xiaoyu Zhang, Ayhan Duzgun, Yuyang Lao, Shayaan Subzwari, Nicholas Bingham, Joseph Sklenar, Hilal Saglam, Justin Ramberger, Joseph Batley, Justin Watts, Daniel Bromley, Rajesh Chopdekar, Liam O'Brien, Chris Leighton, Cristiano Nisoli & Peter Schiffer
The appearance of one-dimensional strings of local excitations represents an interesting feature of the physical behavior of strongly correlated topological quantum matter. Here we demonstrate that strings of local excitations can also describe the physics of a classical thermal system of interacting nanomagnets, the Santa Fe Ice geometry of artificial spin ice. We measure the moment configuration of the nanomagnets, both after annealing near the ferromagnetic Curie point and in a thermally dynamic state. While...

Supplementary information provided with Murray et al.: Discovery of an Antarctic ascidian-associated uncultivated Verrucomicrobia with antimelanoma palmerolide biosynthetic potential

Alison E Murray, Chien-Chi Lo, Hajnalka E Daligault, Nicole E Avalon, Robert W Read, Karen W Davenport, Mary L Higham, Yuliya Kunde, Armand EK Dichosa, Bill J Baker & Patrick SG Chain
The Antarctic marine ecosystem harbors a wealth of biological and chemical innovation that has risen in concert over millennia since the isolation of the continent and formation of the Antarctic circumpolar current. Scientific inquiry into the novelty of marine natural products produced by Antarctic benthic invertebrates led to the discovery of a bioactive macrolide, palmerolide A, that has specific activity against melanoma and holds considerable promise as an anticancer therapeutic. While this compound was isolated...

Data from: Sex ratio of Western Bluebirds Sialia mexicana is mediated by phenology and clutch size

Andrew Bartlow, Mark Jankowski, Charles Hathcock, Randall Ryti, Steven Reneau & Jeanne Fair
Mothers may produce more of one sex to maximize their fitness if there are differences in the cost of producing each sex or there are differences in their relative reproductive value. We tested if breeding date, clutch size and drought conditions influenced offspring sex ratios in Western Bluebirds (Sialia mexicana) from 1997 to 2017. We found that hatch dates late in the breeding season were associated with the production of more females. When clutch size...

Entropy driven order in an array of nanomagnets

Hilal Saglam, Ayhan Duzgun, Aikaterini Kargioti, Nikhil Harle, Xiaoyu Zhang, Nicholas Bingham, Yuyang Lao, Ian Gilbert, Joseph Sklenar, Justin Watts, Justin Ramberger, Daniel Bromley, Rajesh Chopdekar, Liam O’Brien, Chris Leighton, Cristiano Nisoli & Peter Schiffer
Long-range ordering, while typically understood as a decrease in entropy, can also be driven by increasing system entropy in certain special cases. We demonstrate that artificial spin ice arrays of single-domain nanomagnets can be designed to produce entropy-driven order. We probe thermally active tetris artificial spin ice, known to have a zero point Pauli entropy, both experimentally and through simulations. We find two-dimensional magnetic ordering in one subset of the nanomagnet moments, which we demonstrate...

Data from: Convergence in resource use efficiency across trees with differing hydraulic strategies in response to ecosystem precipitation manipulation

Jean-Marc Limousin, Enrico A. Yepez, Nate G. McDowell & William T. Pockman
1. Plants are expected to respond to drought by maximizing the efficiency of the most limiting resource, the water use efficiency (WUE), at the expense of nitrogen and carbon use efficiencies (NUE and CUE). Therefore, plants resource use efficiencies are viewed as indicators of species drought tolerance. 2. We tested these predictions by measuring leaf-level intrinsic WUE (WUEi, the ratio of net assimilation to stomatal conductance), photosynthetic NUE (PNUE, the ratio of daily maximum net...

Data from: Spatiotemporal incidence of Zika and associated environmental drivers for the 2015-2016 epidemic in Colombia

Amir S. Siraj, I. Rodriguez-Barraquer, Christopher M. Barker, Natalia Tejedor-Garavito, Dennis Harding, Christopher Lorton, Dejan Lukacevic, Gene Oates, Guido Espana, Moritz U. G. Kraemer, Carrie Manore, Michael A. Johansson, Andrew J. Tatem, Robert C. Reiner & T. Alex Perkins
Despite a long history of mosquito-borne virus epidemics in the Americas, the impact of the Zika virus (ZIKV) epidemic of 2015-2016 was unexpected. The need for scientifically informed decision-making is driving research to understand the emergence and spread of ZIKV. To support that research, we assembled a data set of key covariates for modeling ZIKV transmission dynamics in Colombia, where ZIKV transmission was widespread and the government made incidence data publically available. On a weekly...

ACE MAG SWEPAM 4-min merged IMF+plasma data

David McComas, Charles Smith, Ruth Skoug, Dot Delapp, Heather Elliott & Andrew Davis
ACE MAG and SWEPAM 4-min merged magnetic field and plasma parameter moments data at NASA Space Science Data Center.

3D Dataset of Simulations

Javier E. Santos, Bernard Chang, , , , &

Robust Links CSS File

Shawn Jones, Martin Klein, Herbert Van de Sompel & Michael Nelson
Are you an author of web pages and you don't want your links to die? Link rot occurs when following a link yields a "404 Not Found" error message. Content drift occurs when the content at the end of the link changes over time, possibly to the point where it loses all similarity with the originally linked content. Robust Links addresses both of these problems by providing multiple pathways to revisit a link's original content,...

Registration Year

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Affiliations

  • Los Alamos National Laboratory
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