19 Works

National survey of college students' beliefs, attitudes, and behaviors related to hunting, fishing, and wildlife conservation

Lincoln Larson
This dataset contains responses from an online survey of diverse undergraduate students (ages 18-34 years) attending 22 different universities across 22 U.S. states (total n = 17,203). Survey questions focused on students' beliefs, attitudes, and behaviors related to hunting, fishing, and wildlife conservation. The survey was conducted from 2018-2020.

Code of Best Practices in Fair Use for Open Educational Resources

Meredith Jacob, Peter Jaszi, Prudence S. Adler & William Cross

Resonance Raman confirms partial hemoglobin preservation in dinosaur remains

Brandon Long
Still-soft, hollow, and flexible structures that are morphologically consistent with blood vessels were recovered from demineralized dinosaur bone and studied with resonance Raman techniques to test the hypothesis that these vessel-like structures are original to the dinosaur, and that they maintain endogenous molecular characteristics. We probed these ancient samples using resonance Raman at two different wavelengths, and the existence of a stronger resonance Raman signal level in the green compared to blue excitation is consistent...

Deconstructing incubation behaviour in response to ambient temperature over different timescales

David Diez-Méndez, Caren Cooper, Juan José Sanz, Jose Verdejo & Emilio Barba
Avian embryos need a stable thermal environment to develop optimally, while incubating females need to allocate time to self-maintenance off the nest. In species with female-only incubation, eggs are exposed to ambient temperatures that usually cool them down during female absences. The lower the ambient temperature the sooner females should return to re-warm the eggs. When incubation constraints ease at increasing ambient temperatures, females respond by increasing either incubation effort or self-maintenance time. These responses...

Detecting flying insects using car nets and DNA metabarcoding

Cecilie Svenningsen, Tobias Guldberg Frøslev, Jesper Bladt, Lene Bruhn Pedersen, Jonas Colling Larsen, Rasmus Ejrnæs, Camilla Fløjgaard, Anders Hansen, Jacob Heilmann-Clausen, Robert Dunn & Anders Tøttrup
Monitoring insects across space and time is challenging, due to their vast taxonomic and functional diversity. This study demonstrates how nets mounted on rooftops of cars (car nets) and DNA metabarcoding can be applied to sample flying insect richness and diversity across large spatial scales within a limited time period. During June 2018, 365 car net samples were collected by 151 volunteers during two daily time intervals on 218 routes in Denmark. Insect bulk samples...

G-Quadruplex Structure Improves the Immunostimulatory Effects of CpG Oligonucleotides

Kazuaki Hoshi, TOMOHIKO YAMAZAKI, Yuuki Sugiyama, Kaori Tsukakoshi, Wakako Tsugawa, Koji Sode & Kazunori Ikebukuro
Single-strand oligodeoxynucleotides (ODNs) containing unmethylated cytosine-phosphate-guanine (CpG) are recognized by the toll-like receptor 9, a component of the innate immunity. Therefore, they could act as immunotherapeutic agents. Chemically modified CpG ODNs containing a phosphorothioate backbone instead of phosphodiester (PD) were developed as immunotherapeutic agents resistant to nuclease degradation. However, they cause adverse side effects, and so there is a necessity to generate novel CpG ODNs. In the present study, we designed a nuclease-resistant nonmodified CpG...

Data from: Salivary digestion extends the range of sugar-aversions in the German cockroach

Ayako Wada-Katsumata
Saliva has diverse functions in feeding behavior of animals. However, the impact of salivary digestion of food on insect gustatory information processing is poorly documented. Glucose-aversion (GA) in the German cockroach, Blattella germanica, is a highly adaptive heritable behavioral resistance trait that protects the cockroach from ingesting glucose-containing-insecticide-baits. In this study, we confirmed that GA cockroaches rejected glucose, but they accepted oligosaccharides. However, whereas wild-type cockroaches that accepted glucose also satiated on oligosaccharides, GA cockroaches...

Savannas are not old fields: functional trajectories of forest expansion in a fire-suppressed Brazilian savanna are driven by habitat generalists

Samuel Flake, Rodolfo Abreu, Giselda Durigan & William Hoffmann
Under fire suppression, many tropical savannas transform into forests. Forest expansion entails changes in environmental variables and plant community structure. We hypothesized that forest expansion into savanna results in a shift in community-weighted mean functional traits from stress tolerance to competitiveness, with generalist species having trait values intermediate between those of specialists of savanna and forest habitats. We studied 30 plots distributed over three savanna-forest boundaries undergoing forest expansion in the Brazilian Cerrado, capturing a...

Avian Response to Hurricane Maria in Coffee Plantations

Jaime Collazo, Amarilys Irizarry, Ivette Perfecto & John Vandermeer
Insights on impacts and resiliency of avian species with respect to hurricanes in the Caribbean have largely focused on responses measured in protected habitats. We assessed avian responses in non-protected habitat, specifically shade-restored coffee plantations, because their structural complexity retains many attributes of secondary forests, and may contribute to landscape scale species resiliency. We tallied species richness and estimated occupancy probability of 12 resident avian species, after adjusting for imperfect detection, to assess the impact...

Data for Predation and resource availability interact to drive life-history evolution in an adaptive radiation of livebearing fish

Randall Brian Langerhans & Kaj Hulthén
Predation risk and resource availability are two primary factors predicted by theory to drive the evolution of life histories. Yet, disentangling their roles in life-history evolution in the wild is challenging because (1) the two factors often co-vary across environments and (2) environmental effects on phenotypes can mask patterns of genotypic evolution. Here, we use the model system of the Post-Pleistocene radiation of Bahamas mosquitofish (Gambusia hubbsi) inhabiting blue holes to provide a strong test...

How Superior–Subordinate Relationship Quality and Conflict Management Styles Influence an Employee's Use of Upward Dissent Tactics

Valeska Redmond, Jessica Katz Jameson & Andrew Binder

Sponge-like rigid structures in frictional granular packings

Kuang Liu, Jonathan E. Kollmer, Karen E. Daniels, J.M. Schwarz & Silke Henkes
We show how rigidity emerges in experiments of sheared two-dimensional frictional granular materials by using generalizations of two methods for identifying rigid structures. Both approaches, the force-based dynamical matrix and the topology-based rigidity percolation, agree with each other and identify similar rigid structures. As the system becomes jammed, at a critical contact number z = 2.4±0.1, a rigid backbone interspersed with floppy, particle-filled holes of a broad range of sizes emerges, creating a sponge-like morphology....

Important lessons from stakeholder engagement

Khara Grieger

A Hopf Adaptive Oscillator Analog Circuit as a musical instrument

Edmon Perkins, XiaoFu Li &
The utilization of a Hopf adaptive frequency oscillator as a musical instrument is explored. The analog circuit design of this nonlinear oscillator are presented, and the procedure to use it as a musical instrument is described. Although similar to other analog electronics instruments such as the theremin, the authors believe this is the first time that an adaptive oscillator has been implemented as a musical instrument. Ave Maria, D. 839-Bradley Chapman (https://musopen.org/music/1673-ave-ma...​), is used here...

A novel body plan alters diversification of body shape and genitalia in live-bearing fish

R. Brian Langerhans & Eduardo Rosa-Molinar
Major evolutionary innovations can greatly influence subsequent evolution. While many major transitions occurred in the deep past, male live-bearing fishes (family Poeciliidae) more recently evolved a novel body plan. This group possesses a three-region axial skeleton, with one region—the ano-urogenital region—representing a unique body region accommodating male genitalic structures (gonopodial complex). Here we evaluate several hypotheses for the evolution of diversity in this region and examine its role in the evolution of male body shape....

Wild bumble bee colony abundance, scaled by field size, predicts pollination services

Shelby Fleischer, James Strange, Margarita Lopez-Uribe & Carley McGrady
Although bee visitation rate to flowers is often used to assess both pollination services and bee abundance, the abundance of social species needs to be assessed by quantifying the number of colonies instead of the number of foraging individuals. Because accurately quantifying the number of wild bee colonies can be difficult, the relationship of visitation rates provided by foragers and the abundance of colonies contributing those foragers from the surrounding landscape is poorly documented for...

Data from: Estimating encounter location distributions from animal tracking data

Michael Noonan, Ricardo Martinez-Garcia, Grace H. Davis, Margaret C. Crofoot, Roland Kays, Ben T. Hirsch, Damien Caillaud, Eric Payne, Andrew Sih, David L. Sinn, Orr Spiegel, William F. Fagan, Christen H. Fleming & Justin M. Calabrese
1. Ecologists have long been interested in linking individual behavior with higher-level processes. For motile species, this 'upscaling' is governed by how well any given movement strategy maximizes encounters with positive factors, and minimizes encounters with negative factors. Despite the importance of encounter events for a broad range of ecological processes, encounter theory has not kept pace with developments in animal tracking or movement modeling. Furthermore, existing work has focused primarily on the relationship between...

Variant discovery in full-sibling families of Pinus taeda L

Eddie Lauer
Fusiform rust disease, caused by the endemic fungus Cronartium quercuum f. sp. fusiforme, is the most damaging disease affecting economically important pine species in the southeast United States. In this report, we detail the genomic localization and sequence-level discovery of candidate race-nonspecific broad-spectrum fusiform rust resistance genes in Pinus taeda L. Two full-sib families, each with ~1000 progeny, were challenged with a complex inoculum consisting of over 150 pathogen isolates. High-density linkage mapping revealed three...

Data from: Variation in predation regime drives sex-specific differences in mosquitofish foraging behaviour

Varpu Pärssinen, Kaj Hulthén, Christer Brönmark, Gustaf Ekelund Ugge, Raphael Gollnisch, Simon David Herzog, Nan Hu, Marcus Lee, Yongcui Sha, Martin Škerlep, Jerker Vinterstare, R. Brian Langerhans, P. Anders Nilsson, Caroline Björnerås, Lars-Anders Hansson, Emma Johansson, Karin Rengefors & Huan Zhang
Predation is a well-studied driver of ecological selection on prey traits, which frequently drives divergence in anti-predator performance across environments that vary in predation risk. However, predation also alters prey mortality regimes, where low predation risk often results in higher prey densities and consequently higher intensities of intraspecific resource competition. In addition, predation risk alters the foraging context, as acquiring food can be risky in the presence of predators. Thus, different predation regimes can drive...

Registration Year

  • 2021
    19

Resource Types

  • Dataset
    15
  • Text
    3
  • Audiovisual
    1

Affiliations

  • North Carolina State University
    19
  • Lund University
    2
  • University of Kansas
    1
  • University of Michigan-Ann Arbor
    1
  • Tokyo University of Agriculture and Technology
    1
  • The Ohio State University
    1
  • Universidade Federal Rural do Rio de Janeiro
    1
  • University of North Carolina at Chapel Hill
    1
  • Aarhus University
    1
  • Syracuse University
    1