33 Works

Data from: Computed tomography shows high fracture prevalence among physically active forager-horticulturalists with high fertility

Jonathan Stieglitz, Benjamin C. Trumble, Study Team HORUS, Caleb Finch, Dong Li, Matthew J. Budoff, Hillard Kaplan & Michael Gurven
Modern humans have more fragile skeletons than other hominins, which may result from physical inactivity. Here we test whether reproductive effort also compromises bone strength, by measuring using computed tomography thoracic vertebral bone mineral density (BMD) and fracture prevalence among physically active Tsimane forager-horticulturalists. Earlier onset of reproduction and shorter interbirth intervals are associated with reduced BMD for women. Tsimane BMD is lower versus Americans, but only for women, contrary to simple predictions relying on...

Data from: Linking land use and the nutritional ecology of herbivores: a case study with the Senegalese locust

Marion Le Gall, Mira Word, Natalia Thompson, Balanding Manneh, Alioune Beye & Arianne Cease
1) Access to high-quality food is a main driver of population dynamics. For herbivores protein and carbohydrates are key nutrients that are notoriously variable in plants and are affected by land use. However, few studies have linked foraging decisions and performance in the laboratory to the nutritional landscape available in the field. 2) Oedaleus senegalensis is a nonmodel locust, a grass-feeder, and the main pest of millet, a subsistence crop in the Sahel. In this...

Data from: The distribution of plants and seed dispersers in response to habitat fragmentation in an artificial island archipelago

Jiajia Liu, Ferry Slik, David Coomes, Richard T. Corlett, Yanping Wang, Maxwell Wilson, Guang Hu, Ping Ding & Mingjian Yu
Aim: Small, old-growth forest fragments generally have more small-seeded plants than large patches, due to the disappearance of large seed dispersing vertebrates. This pattern may differ for secondary forest fragments where differential migration ability rather than persistence of seed dispersers may be driving plant community assembly. In this paper, we investigated the effect of habitat fragmentation on seed dispersers and plant community structure in regenerating forests. Location: The Thousand Island Lake, China. Taxon: Plants, birds...

Data from: Adaptive multi-degree of freedom Brain Computer Interface using online feedback: Towards novel methods and metrics of mutual adaptation between humans and machines for BCI.

Chuong H Nguyen, George K Karavas & Panagiotis Artemiadis
This paper proposes a novel adaptive online-feedback methodology for Brain Computer Interfaces (BCI). The method uses ElectroEncephaloGraphic (EEG) signals and combines motor with speech imagery to allow for tasks that involve multiple degrees of freedom (DoF). The main approach utilizes the covariance matrix descriptor as feature, and the Relevance Vector Machines (RVM) classifier. The novel contributions include, (1) a new method to select representative data to update the RVM model, and (2) an online classifier...

Storytelling in Sustainability Communication

Anna Sundermann, Hanna Selm & Daniel Fischer
Project Background The project “Storytelling in Sustainability Communication ” aims to make use of the approach of storytelling in a systematic and evidence-based way in order to tackle challenges in sustainability communication with young people and to contribute to a more effective processing of sustainability topics in journalism as well as in science and corporate communication. Although the storytelling approach is awarded high potential, so far there are only a few projects in the area...

Neural Correlates Underlying the Effect of Reward Value on Recognition Memory

& Blake Elliott

Presentations Given by COS

Timothy Errington, Brian Geiger, Brian Nosek, Longze Chen, Fitz Elliott, David Mellor, David Litherland, Yuhuai Liu, Zachary Loomas, Krystal Hahn, Olivia Miske, Briana Wade, Huajin Wang, Alexis Rice, Nicole Pfeiffer, Lisa Shaw, Andrew Tyner, Whitney Wissinger, Lesley Markham, Fielding Grasty, Olivia Lowrey, Marcy Reedy, Mark Call, Jonathan Walz, Futa Ikeda … & Abram Booth
A collection of slides for virtually all presentations given by Center for Open Science staff since its founding in 2013.

Data from: Contingent negative variation during a modified cueing task in simulated driving

Zizheng Guo, Xi Tan, Yufan Pan, Xian Liu, Guozhen Zhao, Lin Wang & Zhen Peng
The obscured pedestrian-motor vehicle crash has become a serious danger to driving safety. The present study aims to investigate the contingent negative variation (CNV) during the anticipation of an obscured pedestrian-motor vehicle crash in simulated driving. We adopted two cueing tasks: (i) a traditional cognitive paradigm of cueing task that has been widely used to study anticipatory process, and (ii) a modified cueing task in simulated driving scenes, in which Electroencephalogram (EEG) signals of 32...

Data from: samc: An R package for connectivity modeling with spatial absorbing Markov chains

Andrew Marx, Chao Wang, Jorge Sefair, Miguel Acevedo & Robert Fletcher
Quantifying landscape connectivity is fundamental to better understand and predict how populations respond to environmental change. Currently, popular methods to quantify landscape connectivity emphasize how landscape features provide resistance to movement. While many tools are available to quantify landscape resistance, these do not discern between two fundamentally different sources of resistance: movement behavior and mortality. To address this issue, we developed the samc package that quantifies landscape connectivity using absorbing Markov chain theory. Within this...

Data from: Complex patterns of sex-biased demography in canines

Tanya N. Phung, Robert K. Wayne, Melissa A. Wilson & Kirk E. Lohmueller
The demographic history of dogs is complex, involving multiple bottlenecks, admixture events and artificial selection. However, existing genetic studies have not explored variance in the number of reproducing males and females, and whether it has changed across evolutionary time. While male-biased mating practices, such as male-biased migration and multiple paternity, have been observed in wolves, recent breeding practices could have led to female-biased mating patterns in breed dogs. For example, breed dogs are thought to...

2019 Workshop \"Replicability and Reproducibility in Geospatial Research\" at SPARC

Daniel Nüst, Peter Kedron, Amy Frazier, Yingjie Hu, Vaclav Petras, Nathan Piekielek, Alexandre Sorokine, Jason Tullis, Dawn Wright, Vanessa DA SILVA BRUM BASTOS, Ling Bian, Kevin Butler, Dylan Connor, Alexander Fotheringham, Mark Gahegan, Song Gao, Michael Goodchild, Bandana Kar, Wenwen Li, Alan Murray, Soe Myint, Trisalyn Nelson, Daniel Sui, Daoqin Tong, Matthew Toro … & Shaowen Wang
Papers, video recordings and material from workshop held at the Spatial Analysis Research Center (SPARC), Arizona State University, on February 11 and 12, 2019, see workshop website at https://sgsup.asu.edu/sparc/RRWorkshop

Marginal Mediation Analysis: A Practical Statistical Framework for Interpretable Mediation Effects: Code, Data, and Output

Tyson Barrett, Ginger Lockhart & Rick Cruz
The data, code, and output for the "Marginal Mediation: A Practical Statistical Framework for Interpretable Mediated Effects" article.

Measuring Attention Control Abilities with a Gaze-Following Antisaccade Paradigm

Jade Yonehiro & Nicholas Duran
Social gaze-following consists of both reflexive and volitional control mechanisms of saccades, similar to those evaluated in the antisaccade task. This similarity makes gaze-following an ideal medium for studying attention in a social context. The present study seeks to utilize reflexive gaze-following to develop a social paradigm for measuring attention control. We evaluate two social versions of the antisaccade task. In version 1, participants are cued with still images of a social partner looking either...

Data from: Predicting functional responses in agro-ecosystems from animal movement data to improve management of invasive pests

Mark Wilber, Sarah Chinn, James Beasley, Raoul Boughton, Ryan Brook, Stephen Ditchkoff, Justin Fischer, Steve Hartley, Lindsey Holstrom, John Kilgo, Jesse Lewis, Ryan Miller, Nathan Snow, Kurt VerCauteren, Samantha Wisely, Colleen Webb & Kim Pepin
Functional responses describe how changing resource availability affects consumer resource use, thus providing a mechanistic approach to prediction of the invasibility and potential damage of invasive alien species (IAS). However, functional responses can be context-dependent, varying with resource characteristics and availability, consumer attributes, and environmental variables. Identifying context-dependencies can allow invasion and damage risk to be predicted across different ecoregions. Understanding how ecological factors shape the functional response in agro-ecosystems can improve predictions of hotspots...

Catchment properties and the photosynthetic trait composition of freshwater plant communities

Lars Lønsmann Iversen, A. Winkel, L. Baastrup-Spohr, A. B. Hinke, J. Alahuhta, A. Baattrup-Pedersen, S. Birk, P. Brodersen, P. A. Chambers, F. Ecke, T. Feldmann, D. Gebler, J. Heino, T. S. Jespersen, S. J. Moe, T. Riis, L. Sass, O. Vestergaard, S. C. Maberly, K. Sand-Jensen & O. Pedersen
Unlike in land plants, photosynthesis in many aquatic plants relies on bicarbonate in addition to carbon dioxide (CO2) to compensate for the low diffusivity and potential depletion of CO2 in water. Concentrations of bicarbonate and CO2 vary greatly with catchment geology. In this study, we investigate whether there is a link between these concentrations and the frequency of freshwater plants possessing the bicarbonate use trait. We show, globally, that the frequency of plant species with...

Microbial colonization of microplastics in the Caribbean Sea

Kassandra Dudek, Bianca Cruz, Beth Polidoro & Susanne Neuer
Microplastics in the ocean function as an artificial microbial reef, with unique and diverse communities of eukaryotic and bacterial microbiota colonizing its surface. It is not well understood if the communities in this biofilm, also termed “plastisphere”, are specific for the type of microplastic on which they develop. Here, we carried out a controlled 6-week long in situ incubation experiment of six common plastic polymer in Bocas del Toro, Panama. The community composition of prokaryotes...

Data from: Self-deception in nonhuman animals: weak crayfish escalated aggression as if they were strong

Michael Angilletta, Gregory Kubitz & Robbie Wilson
Humans routinely deceive themselves when communicating to others, but no one knows whether other animals do the same. We ask whether dishonest signaling between crayfish meets a condition required for self-deception: dishonest individuals and honest individuals escalate aggression according to their signals of strength rather than actual strength. Using game theory, we predicted how an animal’s knowledge of its strength should affect its decision to escalate aggression. At the evolutionary equilibrium, an animal that knows...

Hydrodynamic Brownian motion and nanoscale transport efficiency in liquids (APS March Meeting 2019 presentation slides)

Sean Seyler
These are the slides for the contributed talk entitled "Hydrodynamic Brownian motion and nanoscale transport efficiency in liquids," which was presented at the 2019 APS March Meeting. The original presentation, which was built with Keynote 8.3, includes a number of animations (mp4 and gif formats) that can be found in the included .zip archive. (Note: for OSX/Keynote users, the .zip extension can be manually changed to .key and the presentation viewed directly in Keynote). For...

Topological Smoothing for Retinotopic Mapping

Yanshuai Tu, Duyan Ta, yalin wang, Zhong-Lin Lu & Zhong-Lin Lu
Topological Smoothing for Retinotopic Mapping

Language files accompanying Chung ta noi . . . Conversational Vietnamese

Thuý-Kim Phạm Lê
These are the audio files associated with Chung ta noi ... Conversational Vietnamese. This intermediate language text, written for those who already have a basic knowledge of Vietnamese, stresses conversational skills. The goal is to help students communicate effectively and absorb meaning through speaking, listening, reading, and writing, incorporating the most up-to-date features of the interactive approach to language learning. The book provides insights into Vietnam's multifaceted culture. Each of the 24 chapters includes a...

The foraging potential of the Holocene Cape South Coast of South Africa without the Palaeo-Agulhas Plain

Colin Wren & Marco Janssen
The Palaeo-Agulhas Plain formed an important habitat exploited by Pleistocene hunter-gatherer populations during periods of lower sea level. This productive, grassy habitat would have supported numerous large-bodied ungulates accessible to a population of skilled hunters with the right hunting technology. It also provided a potentially rich location for plant food collection, and along its shores a coastline that moved with the rise and fall of sea levels. The rich archaeological and paleontological records of Pleistocene...

Oxygen supply limits the heat tolerance of avian embryos

John VandenBrooks, Jon Vimmerstedt, Dylan Padilla Pérez & Michael Angilletta
Physiologists have primarily focused on two potential explanations for heat stress in animals—the classic model of molecular stability and a more recent model of oxygen limitation. Although the classic model has widespread support, the oxygen-supply model applies to many aquatic animals and some terrestrial ones. In particular, the embryonic stage of terrestrial animals seems most susceptible to oxygen limitation because embryos acquire oxygen from the atmosphere by diffusion rather than ventilation. We report experiments confirming...

Data from: Rain shadow effects predict population differences in thermal tolerance of leaf-cutting ant workers (Atta cephalotes)

Kaitlin M. Baudier & Sean O'Donnell
Tests of hypotheses for the evolution of thermal physiology often rely on mean temperatures, but mounting evidence suggests geographic variation in temperature extremes is also an important predictor of species’ thermal tolerances. Although the tropics are less thermally variable than higher latitude regions, rain shadows on the leeward sides of mountains can experience greater diel and seasonal variation in temperature than windward sites. Rain shadows provide opportunities to test predictions about the relationships of extreme...

A Bayesian extension of phylogenetic generalized least squares (PGLS): incorporating uncertainty in the comparative study of trait relationships and evolutionary rates

Jesualdo Arturo Fuentes González, P. David Polly & Emília P. Martins
Phylogenetic comparative methods use tree topology, branch lengths, and models of phenotypic change to take into account non-independence in statistical analysis. However, these methods normally assume that trees and models are known without error. Approaches relying on evolutionary regimes also assume specific distributions of character states across a tree, which often result from ancestral state reconstructions that are subject to uncertainty. Several methods have been proposed to deal with some of these sources of uncertainty,...

Data from: When one phenotype is not enough - divergent evolutionary trajectories govern venom variation in a widespread rattlesnake species

Giulia Zancolli, Juan J. Calvete, Michael D. Cardwell, Harry W. Greene, William K. Hayes, Matthew J. Hegarty, Hans-Werner Herrmann, Andrew T. Holycross, Dominic I. Lannutti, John F. Mulley, Libia Sanz, Zachary D. Travis, Joshua R. Whorley, Catharine E. Wüster & Wolfgang Wuster
Understanding the origin and maintenance of phenotypic variation, particularly across a continuous spatial distribution, represents a key challenge in evolutionary biology. For this, animal venoms represent ideal study systems: they are complex, variable, yet easily quantifiable molecular phenotypes with a clear function. Rattlesnakes display tremendous variation in their venom composition, mostly through strongly dichotomous venom strategies, which may even coexist within single species. Here, through dense, widespread population-level sampling of the Mojave rattlesnake, Crotalus scutulatus,...

Registration Year

  • 2019

Resource Types

  • Dataset
  • Text
  • Software
  • Sound


  • Arizona State University
  • University of California, Santa Barbara
  • Utah State University
  • Aarhus University
  • University of Florida
  • Queensland University of Technology
  • Pacific Northwest National Laboratory
  • Emory University School of Medicine
  • Bangor University
  • Zhejiang University