41 Works

ISIMIP3b ocean input data

Matthias Büchner
The Inter-Sectoral Impact Model Intercomparison Project (ISIMIP) provides a framework for the collation of a consistent set of climate impact data across sectors and scales. It also provides a unique opportunity for considering interactions between climate change impacts across sectors through consistent scenarios.
The ISIMIP3b part of the third simulation round is dedicated to a quantification of climate-related risks at different levels of global warming and socio-economic change. ISIMIP3b group I simulations are based on historical...

A comparative analysis of analytical techniques for rapid oil spill identification

Alina T. Roman‐Hubers, Thomas J. McDonald, Erin S. Baker, Ivan Rusyn & Weihsueh Chiu
The complex chemical composition of crude oils presents many challenges for rapid chemical characterization in the case of a spill. A number of approaches are currently used to “fingerprint” petroleum‐derived samples. Gas chromatography coupled with mass spectrometry (GC‐MS) is the most common, albeit not very rapid, technique; however, with GC‐MS alone, it is difficult to resolve the complex substances in crude oils. This study examined the potential application of ion mobility spectrometry–mass spectrometry (IMS‐MS), coupled...

Can prescribed fires restore C4 grasslands invaded by a C3 woody species and a co-dominant C3 grass species?

Jim Ansley, Thomas Boutton & Emily Hollister
Prescribed fire is used to reduce woody plant invasion and restore herbaceous production and diversity in grasslands and savannas worldwide. Here we determined if a concentrated series of repeated-winter, repeated-summer, or alternate-season (winter and summer) fires in a short timeframe (“transition fires”) could catalyze the restoration of C4 perennial grasses in Southern Great Plains, USA grasslands that had become dominated by a fire-tolerant C3 woody N2-fixer (honey mesquite, Prosopis glandulosa) and a C3 perennial bunchgrass...

Season of prescribed fire determines grassland restoration outcomes after fire exclusion and overgrazing

Erin N. Novak, Michelle Bertelsen, Dick Davis, Devin M. Grobert, Kelly G. Lyons, Jason P. Martina, W. Matt McCaw, Matthew O'Toole & Joseph W. Veldman
Fire exclusion and mismanaged grazing are globally important drivers of environmental change in mesic C4 grasslands and savannas. Although interest is growing in prescribed fire for grassland restoration, we have little long-term experimental evidence of the influence of burn season on the recovery of herbaceous plant communities, encroachment by trees and shrubs, and invasion by exotic grasses. We conducted a prescribed fire experiment (seven burns between 2001 and 2019) in historically fire-excluded and overgrazed grasslands...

Omnivory in predatory ladybird beetles is widespread and driven by an appetite for sterols

Todd Ugine, Stuart Krasnoff & Spencer Behmer
1. Animals maintain physiological and behavioral systems that allow them to detect and consume specific macro- and micronutrients to maximize their fitness. One common physiological system is the nutrient-state-dependent or demand-driven appetite. These systems are well described for macronutrient regulation, but not for micronutrients. 2. Sterols are essential micronutrients that all animals need to survive. They are the backbone of many hormones, important in cell signaling, and an integral component of cell membranes. 3. Lady...

Two new hybrid populations expand the swordtail hybridization model system

Daniel Powell, Ben Moran, Bernard Kim, Shreya Banerjee, Stepfanie Aguillon, Paola Fascinetto-Zago, Quinn Langdon & Molly Schumer
Natural hybridization events provide unique windows into the barriers that keep species apart as well as the consequences of their breakdown. Here we characterize hybrid populations formed between the northern swordtail fish Xiphophorus cortezi and X. birchmanni from collection sites on two rivers. We use simulations and new genetic reference panels to develop sensitive and accurate local ancestry calling in this novel system. Strikingly, we find that hybrid populations on both rivers consist of two...

Short-term treatment of golden retriever muscular dystrophy (GRMD) dogs with rAAVrh74.MCK.GALGT2 induces muscle glycosylation and utrophin expression but has no significant effect on muscle strength

Paul Martin, Deborah Zygmunt, Anna Ashbrook, Sonia Hamilton, Davin Packer, Sharla Birch, Amanda Bettis, Cynthia Balog-Alvarez, Lee-Jae Guo, Peter Nghiem & Joe Kornegay
We have examined the effects of intravenous (IV) delivery of rAAVrh74.MHCK7.GALGT2 in the golden retriever muscular dystrophy (GRMD) model of Duchenne Muscular Dystrophy (DMD). After baseline testing, GRMD dogs were treated at 3 months of age and reassessed at 6 months. This 3-6 month age range is a period of rapid disease progression, thus offering a relatively short window to establish treatment efficacy. Measures analyzed included muscle AAV transduction, GALGT2 transgene expression, GALGT2-induced glycosylation, muscle...

Supplementary: Global continental and marine detrital εNd: an updated compilation for use in understanding marine Nd cycling

Suzanne Robinson, Ruza Ivanovic, Tina van de Flierdt, Cecile Blanchet, Kazuyo Tachikawa, Ellen E. Martin, Carys Falko, Trevor Williams, Lauren Gregoire, Yves Plancherel, Catherine Jeandel & Thomas Arsouze
Understanding the role of sediment-water interactions in the oceanic cycling of neodymium (Nd) isotopes is essential for its reliable use as a modern and palaeoceanographic tracer of ocean circulation. However, the exact processes that control Nd cycling in the ocean are poorly defined and require an up-to-date knowledge of the sources, sinks and transformation of this tracer to and within the ocean (e.g. as per the GEOTRACES core mission). We propose a considerable improvement of...

Ephemeral habitat supports high alpha and beta diversity during drought in a subtropical semiarid wetland

Thethela Bokhutlo, Eduardo R. Cunha & Kirk O. Winemiller
Globally, the number of rivers with intermittent flow is increasing due to climate change and water abstraction for human consumption. Currently, our understanding of how hydrology in subtropical rivers with intermittent flow affects the structure and dynamics of aquatic communities is poorly understood. Here, we investigated how fish α and β-diversity patterns in intermittent channels in the lower reaches of the Okavango Delta respond to seasonal flooding and drought. Under low-flow conditions, ephemeral habitat had...

Short term grass bud response to high and low energy fires

Quinn Hiers
Increasingly, land managers have attempted to use extreme prescribed fire as a method to address woody plant encroachment in savanna ecosystems. The effect that these fires have on herbaceous vegetation is poorly understood. We experimentally examined immediate (<24hr) bud response of two dominant graminoids, a C3 caespitose grass, Nassella leucotricha, and a C4 stoloniferous grass, Hilaria belangeri, following fires of varying energy (J/m2) in a semi-arid savanna in the Edwards Plateau ecoregion of Texas. Treatments...

Reevaluating claims of ecological speciation in Halichoeres bivittatus

Dan Warren, Ron Eytan, Alex Dornburg, Teresa Iglesias, Matt Brandley & Peter Wainwright
Allopatry has traditionally been viewed as the primary driver of speciation in marine taxa, but the geography of the marine environment and the larval dispersal capabilities of many marine organisms render this view somewhat questionable. In marine fishes, one of the earliest and most highly cited empirical examples of ecological speciation with gene flow is the slippery dick wrasse, Halichoeres bivittatus. Evidence for this cryptic or incipient speciation event was primarily in the form of...

Habitat complexity and complex signal function – exploring the role of ornamentation

Dustin Wilgers, J. Colton Watts & Eileen Hebets
Animals often communicate in complex, heterogeneous environments, leading to hypothesized selection for increased detectability or discriminability in signaling traits. The extent to which secondary sexual ornaments have evolved to overcome the challenges of signaling in complex environments, however, remains understudied, especially in comparison to their role as indicator traits. This study tested the hypothesis that the condition-dependent secondary sexual ornamentation in the wolf spider Rabidosa rabida functions to increase detectability/discriminability in visually complex environments. We...

ISIMIP3b ocean input data

Matthias Büchner
The Inter-Sectoral Impact Model Intercomparison Project (ISIMIP) provides a framework for the collation of a consistent set of climate impact data across sectors and scales. It also provides a unique opportunity for considering interactions between climate change impacts across sectors through consistent scenarios.
The ISIMIP3b part of the third simulation round is dedicated to a quantification of climate-related risks at different levels of global warming and socio-economic change. ISIMIP3b group I simulations are based on historical...

Organizational structure and institutional types of community water systems in California

Kristin Dobbin & Amanda Fencl
Dataset accompanying Dobbin & Fencl (2021) publication entitled "Institutional diversity and safe drinking water provision in the United States" including secondary data from the U.S. EPA and California State Water Resources Control Board as well as the author-produced 26-type organizational structural and institutional coding of Community Water Systems in California.

XYZ coordinates of middle lumbar vertebrae - 3D GM analysis for: A nearly complete lower back of Australopithecus sediba

Scott Williams & Prang Thomas
Adaptations of the lower back to bipedalism are frequently discussed but infrequently demonstrated in early fossil hominins. Newly discovered lumbar vertebrae contribute to a near-complete lower back of Malapa Hominin 2 (MH2), offering additional insights into posture and locomotion in Australopithecus sediba. We show that MH2 demonstrates a lower back consistent with lumbar lordosis and other adaptations to bipedalism, including an increase in the width of intervertebral articular facets from the upper to lower lumbar...

Predictability and parallelism in the contemporary evolution of hybrid genomes

Quinn K. Langdon, Daniel L. Powell, Bernard Kim, Shreya M. Banerjee, Cheyenne Payne, Tristram O. Dodge, Ben Moran, Paola Fascinetto-Zago & Molly Schumer
Hybridization between species is widespread across the tree of life. As a result, many species, including our own, harbor regions of their genome derived from hybridization. Despite the recognition that this process is widespread, we understand little about how the genome stabilizes following hybridization, and whether the mechanisms driving this stabilization tend to be shared across species. Here, we dissect the drivers of variation in local ancestry across the genome in replicated hybridization events between...

Data from: Predator performance and fitness Is dictated by herbivore prey type plus indirect effects of their host plant

Todd Ugine, Harsimran Gill, Nicolo Hernandez, Robert Grebenok, Spencer Behmer & John Losey
Animals, including herbivores and predators, use diet-mixing to balance their macro- and micronutrient intake. Recent work demonstrated that lady beetles fed only pea aphids from fava beans had reduced fitness caused by a deficiency of dietary sterols. However, beetles redressed this deficit by eating fava bean leaves. In the current study we used Coccinella septempunctata as a model to test the hypotheses that pea aphids are a poor sterol resource independent of their host plant,...

Attractive males are cautious and better learners in the sailfin tetra

Kalebe Pinto, David Saenz, Elio Borghezan & Tiago Pires
A major component of Darwin's formulation of sexual selection theory is whether mate choice can contribute to the evolution of cognitive abilities. Although a correlation between cognition and attractive traits has commonly been reported, the processes that generate such associations remain elusive. Here, we investigated female preference, neophobia and spatial learning in the sailfin tetra, Crenuchus spilurus, a sexually dimorphic fish. Females chose the most ornamented males, which were also more neophobic. This is in...

Size normalized shell weights and measurements for Neogloboquadrina pachyderma and Uvigerina peregrina from the Gulf of Alaska (IODP Exp 341) and associated environmental proxy data

Christina Belanger & Calie Payne
Here we use volume density (ρV) measurements as a metric of size-normalized weights for Neogloboquadrina pachyderma, a planktonic foraminifer, from upper OMZ and abyssal depth sites in the Gulf of Alaska over the past ~20,000 years to test for covariation between carbonate preservation and OMZ intensity. We find that dissolution of N. pachyderma is most intense at the upper OMZ site where oxygenation is generally lower than at the abyssal site. We also examine Uvigerina...

Impact of Helicoverpa zea salivary GOX on stomatal conductance and volatile emission of host plants

Po-An Lin, Yintong Chen, Duverney Chaverra-Rodriguez, Chan Chin Heu, Nursyafiqi Bin Zainuddin, Jagdeep Singh Sidhu, Michelle Peiffer, Ching-Wen Tan, Anjel Helms, Donghun Kim, Jared Ali, Jason Rasgon, Jonathan Lynch, Charles Anderson & Gary Felton
This data set contain raw data associated with the manuscript titled "Silencing the alarm: An insect salivary enzyme closes plant stomata and inhibits volatile release". Herbivore-induced plant volatiles (HIPVs) are widely recognized as ecologically important to plant. While the majority of studies focused on the induction of this “cry for help”, little is known about whether insect herbivores have evolved mechanisms to reduce the release of HIPVs. Here we show that a caterpillar (Helicoverpa zea)...

On the Identification of Power-Law Creep Parameters from Conical Indentation

Yupeng Zhang & Alan Needleman
Load and hold conical indentation responses calculated for materials having creep stress exponents of 1.15, 3.59 and 6.60 are regarded as input “experimental” responses. The creep parameters are identified using the Bayesian-type statistical approach of Zhang et al. [1] for noise-free and noise-contaminated data. A database for the Bayesian-type analysis is created using finite element calculations for a relatively coarse set of parameter values with interpolation used to create the refined database used for parameter...

Bat activity under three lighting treatments

Chad Seewagen & Amanda Adams
Artificial light at night (ALAN) is a rapidly intensifying form of environmental degradation that can impact wildlife by altering light-mediated physiological processes that control a broad range of behaviors. Although nocturnal animals are most vulnerable, ALAN’s effects on North American bats have been surprisingly understudied. Most of what is known is based on decades-old observations of bats around street lights with traditional lighting technologies that have been increasingly replaced by energy-efficient broad-spectrum lighting, rendering our...

Reduced habitat suitability and landscape connectivity in a songbird migratory divide

Hannah Justen, Julie Lee-Yaw & Kira Delmore
Aim Seasonal migration is a common phenomenon in animals and connects geographically distant ecosystems. Considerable variation has been documented in this behaviour and migratory divides (contact zones between populations that use different routes to navigate around ecological barriers) are an example of this. Migratory divides could have important implications for ecological speciation as hybrids in divides take intermediate routes and it has been predicted that these routes will be ecologically inferior as they bring hybrids...

MCMC output files for: Quantitative characterization of population-wide tissue- and metabolite-specific variability in perchloroethylene toxicokinetics in male mice

Chimeddulam Dalaijamts, Joseph Cichocki, Yu-Syuan Luo, Ivan Rusyn & Weihsueh Chiu
Quantification of inter-individual variability is a continuing challenge in risk assessment, particularly for compounds with complex metabolism and multi-organ toxicity. Toxicokinetic variability for perchloroethylene (perc) was previously characterized across three mouse strains and in one mouse strain with various degrees of liver steatosis. To further characterize the role of genetic variability in toxicokinetics of perc, we applied Bayesian population physiologically-based pharmacokinetic (PBPK) modeling to the data on perc and metabolites in blood/plasma and tissues of...

Data from: Plant functional types broadly describe water use strategies in the Caatinga, a seasonally dry tropical forest in northeast Brazil

Cynthia Wright, André Lima, Eduardo Souza, Jason West & Bradford Wilcox
In seasonally dry tropical forests, plant functional type can be classified as deciduous low wood density, deciduous high wood density, or evergreen high wood density species. While deciduousness is often associated with drought-avoidance and low wood density is often associated with tissue water storage, the degree to which these functional types may correspond to diverging and unique water use strategies has not been extensively tested. We examined (1) tolerance to water stress, measured by pre-dawn...

Registration Year

  • 2021
    41

Resource Types

  • Dataset
    41

Affiliations

  • Texas A&M University
    41
  • Potsdam Institute for Climate Impact Research
    3
  • Queensland University of Technology
    3
  • Geophysical Fluid Dynamics Laboratory
    3
  • Zhejiang University
    2
  • Central South University
    2
  • Stanford University
    2
  • Third Affiliated Hospital of Guangzhou Medical University
    2
  • Chengdu University of Traditional Chinese Medicine
    2
  • Chinese University of Hong Kong
    2