24 Works

The distribution and spread of naturally occurring Medea selfish genetic elements in the United States

Sarah Cash, Fred Gould & Marce Lorenzen
Selfish genetic elements (SGEs) are DNA sequences that are transmitted to viable offspring in greater than Mendelian frequencies. Medea SGEs occur naturally in some populations of red flour beetle (Tribolium castaneum) and are expected to increase in frequency within populations and spread among populations. The large-scale USA distributions of Medea-4 (M4) had been mapped based on samples from 1993-1995. We sampled beetles in 2011-2014 and show that the distribution of M4 in the United States...

Data from: Quantifying shape and ecology in avian pedal claws: the relationship between the bony core and keratinous sheath

Brandon Hedrick, Samantha Cordero, Lindsay Zanno, Christopher Noto & Peter Dodson
Terrestrial tetrapods use their claws to interact with their environments in a plethora of ways. Birds in particular have developed a diversity of claw shapes since they are often not bound to terrestrial locomotion and have heterogeneous body masses ranging several orders of magnitude. Numerous previous studies have hypothesized a connection between pedal claw shape and ecological mode in birds, yet have generated conflicting results, spanning from clear ecological groupings based on claw shape to...

Molecular prevalence of Bartonella, Babesia, and hemotropic Mycoplasma species in dogs with hemangiosarcoma from across the United States

Erin Lashnits, Pradeep Neupane, Julie Bradley, Toni Richardson, Rachael Thomas, Keith Linder, Matthew Breen & Ricardo Maggi
Hemangiosarcoma (HSA), a locally invasive and highly metastatic endothelial cell neoplasm, accounts for two-thirds of all cardiac and splenic neoplasms in dogs. Bartonella spp. infection has been reported in association with neoplastic and non-neoplastic vasoproliferative lesions in animals and humans. The objective of this study was to determine the prevalence of Bartonella spp. in conjunction with two other hemotropic pathogens, Babesia spp. and hemotropic Mycoplasma spp., in tissues and blood samples from 110 dogs with...

Anonymized Researcher Interview Data - from the Raising the Profile of the NCSU Libraries Research Support Strategies & Engagement project

Hilary Davis & Colin Nickels
The data are from semi-structured qualitative interviews conducted with researchers (all status levels from undergraduate to tenured faculty) at NC State University between August 2018 - January 2019

Data from: Urbanization drives unique latitudinal patterns of insect herbivory and tree condition

Michael G. Just, Adam G. Dale, Lawrence C. Long & Steven D. Frank
Urban landscapes are characterized by high proportions of impervious surface resulting in higher temperatures than adjacent natural landscapes. In some cities, like those at cooler latitudes, trees may benefit from warmer urban temperatures, but trees in many cities are beset with problems like drought stress and increased herbivory. What drives patterns of urban tree health across urbanization and latitudinal temperature gradients? In natural systems, latitude-herbivory relationships are well-studied, and recent temperate studies have shown that...

Modeling Low Carbon Energy Futures for the United States

Joseph DeCarolis

Data from: Public questions spur the discovery of new bacterial species associated with lignin bioconversion of industrial waste

Stephanie L. Mathews, Mary J. Epps, Robert K. Blackburn, Michael B. Goshe, Amy M. Grunden & Robert R. Dunn
A citizen science project found that the greenhouse camel cricket (Diestrammena asynamora) is common in North American homes. Public response was to wonder “what good are they anyway?” and ecology and evolution guided the search for potential benefit. We predicted that camel crickets and similar household species would likely host bacteria with the ability to degrade recalcitrant carbon compounds. Lignocellulose is particularly relevant as it is difficult to degrade yet is an important feedstock for...

Data from: Natural selection and repeated patterns of molecular evolution following allopatric divergence

Yibo Dong, Shichao Chen, Shifeng Cheng, Wenbin Zhou, Qing Ma, Zhiduan Chen, Cheng-Xin Fu, Xin Liu, Yun-Peng Zhao, Pamela S. Soltis, Gane Ka-Shu Wong, Douglas E. Soltis & Jenny Xiang
Background: Geographic speciation is a major force in generating biodiversity. However, how genomes diverge over time after geographic isolation has halted gene flow has remained unclear. We examine genome-wide divergence of putatively single-copy orthologous genes (POGs) from transcriptomes in 20 allopatric species/variety pairs from diverse angiosperm clades. Sixteen of these pairs reflect the well-known eastern Asia – eastern North America floristic disjunction; these species have been isolated for different lengths of time, from the Miocene...

Data from: Pre-infection effects of nectar secondary compounds on a bumble bee gut pathogen

Kristen Michaud, Rebecca Irwin, Nicholas Barber & Lynn Adler
Bumble bee pollinators can be exposed to pathogens when foraging on flowers previously visited by infected individuals. Infectious cells may be deposited in floral nectar, providing a site for pathogens to interact with nectar secondary compounds prior to infecting bees. Some nectar secondary compounds can reduce pathogen counts in infected bumble bees, but we know less about how exposure to these compounds directly affects pathogens prior to being ingested by their host. We exposed the...

The use of multicomponent adsorption filters in water purification systems and luminescent control of ecotoxicant content

E.I. Tikhomirova, O.A. Plotnikova, O.V. Atamanova, M.V. Istrashkina, A.V. Koshelev & A.L. Podolsky
The paper presents the results of innovative design development for multicomponent adsorption filters with sliding cartridges or with a metal-graphite electrode system. The proposed filters allow providing water purification by 98–99% simultaneously from various polluting organic substances, including polycyclic aromatic hydrocarbons. The filtering media of these filters include bentonite modified by various methods. To study the effectiveness of adsorption filters as a rapid method, qualitative spot test analysis (sensu Feigl) was used. To control the...

Context dependence of local adaptation to abiotic and biotic environments: a quantitative and qualitative synthesis

Ryan Briscoe Runquist, Amanda Gorton, Jeremy Yoder, Nicholas Deacon, Jake Grossman, Shan Kothari, Marta Lyons, Seema Sheth, Peter Tiffin & David Moeller
Understanding how spatially-variable selection shapes adaptation is an area of longstanding interest in evolutionary ecology. Recent meta-analyses have quantified the extent of local adaptation, but the relative importance of abiotic and biotic factors in driving population divergence remains poorly understood. To address this gap, we combined a quantitative meta-analysis and a qualitative meta-synthesis to (1) quantify the magnitude of local adaptation to abiotic and biotic factors and (2) characterize major themes that influence the motivation...

Data from: Biological controls over the abundances of terrestrial ammonia oxidizers

Rui Xiao, Yunpeng Qiu, Jinjin Tao, Xuelin Zhang, Huaihai Chen, S. Chris Reberg-Horton, Wei Shi, H. David Shew, Yi Zhang & Shuijin Hu
Aim: Ammonia-oxidizing archaea (AOA) and bacteria (AOB) are the primary agents for nitrification, converting ammonia (NH4+) into nitrate (NO3-) and modulating plant nitrogen (N) utilization and terrestrial N retention. However, there is still lack of a unifying framework describing the patterns of global AOA and AOB distribution. In particular, biotic interactions are rarely integrated into any of the conceptual models. Location: World-wide. Time period: 2005-2016. Major taxa studied: Ammonia-oxidizing archaea and ammonia-oxidizing bacteria. Methods: A...

Data from: Prolonged exposure to manure from livestock administered antibiotics decreases ecosystem carbon-use efficiency and alters nitrogen cycling

Carl Wepking, Brian Badgley, Jeb Barrett, Katharine Knowlton, Jane Lucas, Kevan Minick, Partha Ray, Sarah Shawver & Michael Strickland
Microbial communities drive soil ecosystem function but are also susceptible to environmental disturbances. We investigated whether exposure to manure sourced from cattle either administered or not administered antibiotics affected microbially-mediated terrestrial ecosystem function. We quantified changes in microbial community composition via amplicon sequencing, and terrestrial elemental cycling via a stable isotope pulse-chase. Exposure to manure from antibiotic-treated cattle caused: i) changes in microbial community structure; and ii) alterations in elemental cycling throughout the terrestrial system....

The impact of local population genetic background on the spread of the selfish element Medea-1 in red flour beetles

Sarah Cash, Fred Gould, Marce Lorenzen & Michael Robert
Selfish genetic elements have been found in the genomes of many species, yet our understanding of their evolutionary dynamics is only partially understood. A number of distinct selfish Medea elements are naturally present in many populations of the red flour beetle (Tribolium castaneum). Although these Medea elements are predicted by models to increase in frequency within populations because any offspring of a Medea-bearing mother that do not inherit at least one Medea allele will die,...

Data from: The genomics of invasion: characterization of red lionfish (Pterois volitans) populations from the native and introduced ranges

M. O. Burford Reiskind, E. M. X. Reed, A. Elias, J. J. Giacomini, A. F. McNear, J. Nieuwsma, G. A. Parker, R. B. Roberts, R. E. Rossi, C. N. Stephenson, J. L. Stevens & B. E. Williams
Invasive species are one of the greatest threats to global biodiversity and ecosystem health, and population genetics provides promising tools for understanding the evolutionary process of successful invaders. The well-documented introduction of the red lionfish (Pterois volitans) to the western Atlantic, Gulf of Mexico and Caribbean has decimated native fauna due to the invader’s voracious predation and growth rate. We tested whether our samples were within the region of the source of invasion into the...

Data from: Bee pathogen transmission dynamics: deposition, persistence and acquisition on flowers

Laura L. Figueroa, Malcolm Blinder, Cali Grincavitch, Angus Jelinek, Emilia K. Mann, Liam A. Merva, Lucy E. Metz, Amy Y. Zhao, Rebecca E. Irwin, Scott H. McArt & Lynn S. Adler
Infectious diseases are a primary driver of bee decline worldwide, but limited understanding of how pathogens are transmitted hampers effective management. Flowers have been implicated as hubs of bee disease transmission, but we know little about how interspecific floral variation affects transmission dynamics. Using bumble bees (Bombus impatiens), a trypanosomatid pathogen (Crithidia bombi), and three plant species varying in floral morphology, we assessed how host infection and plant species affect pathogen deposition on flowers, and...

Autonomous Vehicles and the Ethical Tension Between Occupant and Non-Occupant Safety

Jason Borenstein, Joseph Herkert & Keith W. Miller
Autonomous vehicle manufacturers, people inside an autonomous vehicle (occupants), and people outside the vehicle (non-occupants) are among the distinct stakeholders when addressing ethical issues inherent in systems that include autonomous vehicles. As responses to recent tragic cases illustrate, advocates for autonomous vehicles tend to focus on occupant safety, sometimes to the exclusion of non-occupant safety. Thus, we aim to examine ethical issues associated with non-occupant safety, including pedestrians, bicyclists, motorcyclists, and riders of motorized scooters....

Maintaining historic disturbance regimes increases species’ resilience to catastrophic hurricanes

Erica H Henry, Martha O Burford Reiskind, Aerin Land & Nick M Haddad
As habitat loss and fragmentation, urbanization, and global climate change accelerate, conservation of rare ecosystems increasingly relies on human intervention. However, any conservation strategy is vulnerable to unpredictable, catastrophic events. Whether active management increases or decreases a system’s resilience to these events remains unknown. Following Hurricane Irma’s landfall in our habitat restoration study sites, we found that rare ecosystems with active, human-imposed management suffered less damage in a hurricane’s path than unmanaged systems. At the...

Multiple traits and multifarious environments: integrated divergence of morphology and life history

Rüdiger Riesch, Ryan A. Martin & R. Brian Langerhans
Understanding complex responses of multiple character suites (e.g., behaviour, life history, morphology) to multifarious environments is a challenging task. Here we use a multivariate approach (partial least squares structural equation modelling) to disentangle drivers (i.e., predation, resource availability, and population demographics) of phenotypic divergence among populations of Bahamas mosquitofish (Gambusia hubbsi) inhabiting blue holes. We further employ a two-block partial least squares analysis in a novel approach to uncovering integrated and independent aspects of divergence...

Data from: Tethered homing gene drives: a new design for spatially restricted population replacement and suppression

Sumit Dhole, Alun L. Lloyd & Fred Gould
Optimism regarding potential epidemiological and conservation applications of modern gene drives is tempered by concern about the possibility of unintended spread of engineered organisms beyond the target population. In response, several novel gene drive approaches have been proposed that can, under certain conditions, locally alter characteristics of a population. One challenge for these gene drives is the difficulty of achieving high levels of localized population suppression without very large releases in the face of gene...

Data from: Betweenness centrality as predictor for forces in granular packings

Jonathan E. Kollmer & Karen E. Daniels
A load applied to a jammed frictional granular system will be localized into a network of force chains making inter-particle connections throughout the system. Because such systems are typically under-constrained, the observed force network is not unique to a given particle configuration, but instead varies upon repeated formation. In this paper, we examine the ensemble of force chain configurations created under repeated assembly in order to develop tools to statistically forecast the observed force network....

Data from: The individual and combined effects of snowmelt timing and frost exposure on the reproductive success of montane forbs

Gabriella L. Pardee, Isaac O. Jensen, David W. Inouye & Rebecca E. Irwin
1. Changes from historic weather patterns have affected the phenology of many organisms worldwide. Altered phenology can introduce organisms to novel abiotic conditions during growth and modify species interactions, both of which could drive changes in reproduction. 2. We explored how climate change can alter plant reproduction using an experiment in which we manipulated the individual and combined effects of snowmelt timing and frost exposure, and measured subsequent effects on flowering phenology, peak flower density,...

Data from: Attract or defend? Pollen and vegetative secondary chemistry of three pollen-rewarding lupines

Jacob M. Heiling, Daniel Cook, Stephen T. Lee & Rebecca E. Irwin
PREMISE OF THE STUDY: Optimal Defense Theory predicts that selection should drive plants to differentially allocate resources for herbivore defense to tissues with high fitness values. As pollen’s primary role is the transport of gametes, plants may be expected to defend it from herbivory. However, for many animal-pollinated plants, pollen serves a secondary role as a pollinator reward. This may present a conflict between selection to defend pollen from herbivores and selection to reward pollinators....

Social media use and preferences of visitors to Crater Lake National Park: Data from a 2014 on-site survey

Rosemary B. Keane & Jordan W. Smith
These data describe the use, and preferences for, social media among visitors to Crater Lake National Park (Oregon, USA)

Registration Year

  • 2019
    24

Resource Types

  • Dataset
    21
  • Text
    2
  • Data Paper
    1

Affiliations

  • North Carolina State University
    24
  • University of Massachusetts Amherst
    2
  • University of Florida
    2
  • California State University, Northridge
    1
  • Zhejiang University
    1
  • University of Pennsylvania
    1
  • Campbell University
    1
  • University of Minnesota
    1
  • United States Department of Agriculture
    1
  • Yuri Gagarin State Technical University of Saratov
    1