39 Works

Lasionycteris noctivagans mitochondrial genomes raw data

Jamin Wieringa, Marissa Monopoli & H Gibbs
The geographic distributions of eastern and western Lasionycteris noctivagans populations suggest they could be geneticially isolated from each other, but this has rarely been assessed using genetic data. Here, we evaluate this possibility by sequencing the complete mitochondrial genome of four silver-haired bats from eastern and western populations. The three usable mitogenomes were closely associated with other Vespertilionid bats and the phylogenetic tree revealed the two western individuals grouping together to form their own clade....

Conservation in post-industrial cities: how does vacant land management and landscape configuration influence urban bees?

Katherine Turo, MaLisa Spring, Frances Sivakoff, Yvan Delgado De La Flor & Mary Gardiner
1. Rich pollinator assemblages are documented in some cities despite habitat fragmentation and degradation, suggesting that urban areas have potential as pollinator refuges. To inform urban bee conservation, we assessed local and landscape scale drivers of bee community composition and foraging within vacant lots of Cleveland, Ohio, USA. Cleveland is a shrinking city, a type of urban area that has an over-abundance of vacated greenspaces as a result of population loss and subsequent demolition of...

Long-term evidence shows crop-rotation diversification increases agricultural resilience to adverse growing conditions in North America

Timothy Bowles, Maria Mooshammer, Yvonne Socolar, Franciso Calderón, Michel Cavigelli, Steve Culman, William Dean, Axel Garcia Y Garcia, Amélie Gaudin, W Scott Harkom, Michael Lehman, Shannon Osborne, G Philip Robertson, Jonathan Salerno, Marty Schmer, Jeffrey Strock, A Stuart Grandy & Craig Drury
A grand challenge facing humanity is how to produce food for a growing population in the face of a changing climate and environmental degradation. Though empirical evidence remains sparse, management strategies that increase environmental sustainability, like increasing agroecosystem diversity through crop rotations, may also increase resilience to weather extremes without sacrificing yields. We used multilevel regression analyses of long-term crop yield datasets across a continental precipitation gradient to assess how temporal crop diversification affects maize...

Population genetic structure and demographic history of the lone star tick, Amblyomma americanum (Ixodida: Ixodidae): new evidence supporting old records

Paula Lado, Megan Smith, Bryan Carstens & Hans Klompen
Range expansions are a potential outcome of climate change. Population genetic structure and demography can be used as tools to evaluate hypotheses on changes in geographic distribution. In this study we explored the genetic variability, population genetic structure, demographic history, and habitat suitability of Amblyomma americanum, a North American tick species that is a known vector of several pathogenic microorganisms. We used a novel double digestion restriction site-associated DNA sequencing (dd-RAD seq), and we discovered...

Effects of diet fermentability and supplementation of 2-hydroxy-(4-methylthio) butanoic acid and isoacids on milk fat depression: 2. Ruminal fermentation, fatty acid, and bacterial community structure

Chanhee Lee
The experiment was conducted to understand ruminal effects of diet modification during moderate milk fat depression (MFD) and ruminal effects of HMTBa and isoacids on alleviating MFD. Five ruminally cannulated cows were used in a 5 × 5 Latin square design with the following 5 dietary treatments (dry matter basis): HF-C, a high forage and low starch control diet with 1.5% safflower oil; LF-C, a low forage and high starch control diet with 1.5% safflower...

Abundance of Montane Salamanders over an elevational gradient

Joseph Milanovich, Daniel Hocking, William Peterman & John Crawford
Climate change is expected to systematically alter the distribution and population dynamics of species around the world. The effects are expected to be particularly strong at high latitudes and elevations, and for ectothermic species with small ranges and limited movement potential, such as salamanders in the southern Appalachian Mountains. In this study, we sought to establish baseline abundance estimates for plethodontid salamanders (family: Plethodontidae) over an elevational gradient in Great Smoky Mountains National Park. In...

Dataset: Direct determination of structural heterogeneity in metallic glasses using four-dimensional scanning transmission electron microscopy

Soohyun Im, Zhen Chen, Jared M. Johnson, Pengyang Zhao, Geun Hee Yoo, Eun Soo Park, Yunzhi Wang, David Muller & Jinwoo Hwang

Terminus data for: Multi-decadal retreat of Greenland’s marine-terminating glaciers

Ian M. Howat & Alex Eddy
Many marine-terminating glaciers draining the Greenland ice sheet have retreated over the past decade, yet the extent and magnitude of retreat relative to past variability is unknown. We measure changes in front positions of 210 marine-terminating glaciers using Landsat imagery spanning nearly four decades and compare decadal-scale rates of change with earlier observations. We find that 90% of the observed glaciers retreated between 2000 and 2010, approaching 100% in the northwest, with rapid retreat observed...

Data from: Dynamic ice loss from the Greenland Ice Sheet driven by sustained glacier retreat

Michalea King & Ian Howat
Here we share remotely-sensed Greenland outlet glacier data for 234 individual glaciers. Data include observations of mena monthly discharge (ice volume flux exported by the glacier), front position changes, velocity, and ice thickness for the 1985-2018 period. Data will be periodically updated as needed. The Greenland Ice Sheet is losing mass at accelerated rates in the 21st century, making it the largest single contributor to rising sea levels. Faster flow of outlet glaciers has substantially...

Data from: Honey bees and neonicotinoid-treated corn seed: contamination, exposure, and effects

Chia-Hua Lin, Douglas Sponsler, Rodney Richardson, Harold Watters, Donna Glinski, W. Matthew Henderson, Jeffrey Minucci, E. Henry Lee, S. Thomas Purucker & Reed Johnson
Most corn (Zea mays) seeds planted in the US in recent years are coated with a seed treatment containing neonicotinoid insecticides. Abrasion of the seed coating generates insecticide-laden planter dust that disperses through the landscape during corn planting and has resulted in many ‘bee-kill’ incidents in North America and Europe. We investigated the linkage between corn planting and honey bee colony success in a region dominated by corn agriculture. Over three years we consistently observed...

Transcriptional differentiation of UV-B protectant genes in maize landraces spanning an elevational gradient in Chiapas, Mexico

Matthew Kost, Kristin Mercer, Hugo Perales, Saranga Wijeratne, Asela Wijeratne & Eric Stockinger
Globally, farmers cultivate and maintain crop landraces (i.e., traditional varieties). Landraces contain unique diversity shaped in part by natural and human-mediated selection and are an indispensable resource to farmers. Since environmental conditions change with elevation, crop landraces grown along elevational gradients have provided ideal locations to explore patterns of local adaptation. To further probe traits underlying this differentiation, transcriptome signatures can help provide a foundation for understanding the ways in which functional genetic diversity may...

Disconnects between communicated impact and ecological impact of biological invasions

Kali Mattingly, Tara Pelletier, Jessie Lanterman, Danielle Frevola, Benjamin Stucke, Kaitlin Kinney, Ross Schwartz, Drew Spacht, Graham Dixon & Stephen Hovick
Although scientists strive to accurately communicate their research, disconnects can arise between results and rhetoric. Some have regarded invasion scientists as particularly prone to using value-laden language incommensurate with the scientific facts or results. We addressed how authors used 10 near synonyms (words for which usage is similar but not completely overlapping) of the negative-value word invasive. We asked whether study findings (effect sizes) or other factors predicted language use. The use of negative-value words...

Demographic characteristics, site and phylogenetic distribution of dogs with appendicular osteosarcoma: 744 dogs (2000-2015)

Laura Selmic, Marejka Shaevitz, Joanne Tuohy, Laura Garrett & Audrey Ruple
Objective: To report demographic characteristics of a contemporary population of dogs with appendicular osteosarcoma and assess the relationship between demographic characteristics, site distribution, and phylogenetic breed clusters. Design: Retrospective case series. Methods: A search of the Veterinary Medical Database was performed for dogs with appendicular osteosarcoma as a new diagnosis. Entries were reviewed for the sex, neuter status, age at diagnosis, breed, affected limb, and tumor location. The reported breed for purebred dogs was used...

Genomic data from the Brazilian sibilator frog reveals contrasting Pleistocene dynamics and regionalism in two South American dry biomes

Maria Tereza Thomé, Bryan Carstens, Miguel Rodrigues, João Alexandrino & Célio Haddad
Aim: Knowledge about the Neotropical dry formations, particularly the Caatinga, remains rudimentary compared to other biotas in the region. Here we address several biogeographical hypotheses by combining intense geographic and genomic sampling obtained for the Brazilian sibilator frog. We specifically test predictions related to the putative roles of past climate shifts (Pleistocene and Holocene) and local geographic barriers (past and current courses of the São Francisco river, SFR) in causing population differentiation in this species....

Tracking sickness effects on social encounters via continuous proximity-sensing in wild vampire bats

Simon Ripperger & Gerald Carter
Sickness behaviors can slow the spread of pathogens across a social network. We conducted a field experiment to investigate how sickness behavior affects individual connectedness over time using a dynamic social network created from high-resolution proximity data. After capturing adult female vampire bats (Desmodus rotundus) from a roost, we created ‘sick’ bats by injecting a random half of bats with the immune-challenging substance, lipopolysaccharide, while the control group received saline injections. Over the next three...

Ambiguity in medical concept normalization: An analysis of types and coverage in electronic health record datasets

Denis Newman-Griffis, Guy Divita, Bart Desmet, Ayah Zirikly, Carolyn Rosé & Eric Fosler-Lussier
Objective: Normalizing mentions of medical concepts to standardized vocabularies is a fundamental component of clinical text analysis. Ambiguity—words or phrases that may refer to different concepts—has been extensively researched as part of information extraction from biomedical literature, but less is known about the types and frequency of ambiguity in clinical text. This study characterizes the distribution and distinct types of ambiguity exhibited by benchmark clinical concept normalization datasets, in order to identify directions for advancing...

The complex history of genome duplication and hybridization in North American gray treefrogs

William W. Booker, H. Carl Gerhardt, Alan R. Lemmon, Margaret Ptacek, Alyssa T. B. Hassinger, Johannes Schul & Emily M. Lemmon
Polyploid speciation has played an important role in evolutionary history across the tree of life, yet there remain large gaps in our understanding of how polyploid species form and persist. While systematic studies have been conducted in numerous polyploid complexes, recent advances in sequencing technology have demonstrated that conclusions from data-limited studies may be spurious and misleading. The North American gray treefrog complex, consisting of the diploid Hyla chrysoscelis and the tetraploid Hyla versicolor, has...

A Hirnantian holdover from the late Ordovician mass extinction: phylogeny and biogeography of a new Anthracocrinid crinoid from Estonia

Selina Cole, William Ausich & Mark Wilson
Relatively few Hirnantian (Late Ordovician) crinoids are known, and none have been previously described from the palaeocontinent of Baltica. This has impaired our ability to understand patterns of extinction and biogeographic dispersal surrounding the Late Ordovician mass extinction, which triggered a major turnover in crinoid faunas. Here, we describe Tallinnicrinus toomae gen. et sp. nov., an anthracocrinid diplobathrid from the Hirnantian of northern Estonia. Tallinnicrinus is the youngest member of the Anthracocrinidae and the first...

Evolution of Pelage Luminance in squirrels (Sciuridae)

Alec D. Sheets & Andreas S. Chavez
Sciurids have one of the greatest diversities of color patterns and hues among mammalian families, but whether these color patterns conform to Gloger’s Rule has not been investigated. Gloger’s rule is the ecogeographic trend that describes the tendency of animals’ pelage to be darker in warmer and wetter environments. Several mechanisms have been proposed explain this trend that relate to various environmental variables. However, these variables frequently correlate with each other which can cause increased...

Integrated Crop-Livestock Systems achieve comparable crop yields to specialized systems: a meta-analysis

Caitlin Peterson, Leonardo Deiss & Amelie Gaudin
Production systems that feature temporal and spatial integration of crop and livestock enterprises, also known as integrated crop-livestock systems (ICLS), have the potential to intensify production on cultivated lands and foster resilience to the effects of climate change without proportional increases in environmental impacts. Yet, crop production outcomes following livestock grazing across environments and management scenarios remain uncertain and a potential barrier to adoption, as producers worry about the effects of livestock activity on the...

Bergmann's rule is followed at multiple stages of post-embryonic development in a long-distance migratory songbird

Joseph Youtz, Kelly Miller, Emerson Bowers, Samantha Rogers, Lesley Bulluck, Matthew Johnson, Brian Peer, Katie Percy, Erik Johnson, Elizabeth Ames, Christopher Tonra & Than Boves
Aim: We assessed the presence of Bergmann’s rule in a model migratory species across all life stages on their breeding grounds. We then compared historic and contemporary egg sizes to understand if the biogeographic patterns during this developmental life stage have changed over time. Location: Eastern North America. Time period: 1865 to 2019. Major taxa: Prothonotary warbler, Protonotaria citrea Methods: We measured the size of eggs, young and old nestlings, and adults (of two age...

Urbanization mediates the effects of water quality and climate on a model aerial insectivorous bird

Mazeika Sullivan, Joseph Corra & Jeffry Hayes
Aerial insectivorous birds have experienced alarming population declines in eastern North America. Meanwhile, urbanization continues to increase rapidly, with urban land use comprising 69.4 million acres, or 3.6% of total land area, in the contiguous United States. Multiple environmental changes are associated with urbanization, including alterations to local climate, changes in habitat structure, and potential shifts in both terrestrial and emergent aquatic flying insects on which aerial insectivorous birds rely. Here, we investigated the linkages...

Data from - Ecological insights from three decades of animal movement tracking across a changing Arctic

Gil Bohrer, Sarah Davidson, Eliezer Gurarie, Scott LaPoint, Peter Mahoney, Emma Grier, Ophélie Couriot, Allicia Kelly, Bryan Bedrosian, Jerrold Belant, Travis Booms, Bridget Borg, Stan Boutin, Erica Craig, Tracy Davison, Robert Domenech, James Hodson, Kyle Joly, Nicholas Larter, A. David M. Latham, Stephen Lewis, Carol McIntyre, Tricia Miller, Kelsey Russell, Dale Seip … & Judy Williams
We provide here the data used in analysis of 3 test cases, presented in the manuscript "Ecological insights from three decades of animal movement tracking across a changing Arctic". We utilized the new Arctic Animal Movement Archive (AAMA), a growing collection of 201 standardized terrestrial and marine animal tracking studies from 1991–present. The AAMA supports public data discovery, preserves fundamental baseline data for the future, and facilitates efficient, collaborative data analysis. With three AAMA-based case...

Data from: The molecular basis of venom resistance in a rattlesnake-squirrel predator-prey system

Harold Gibbs, Juan Calvete, Libia Sanz, Alicia Perez, Alexander Ochoa, Alyssa Hassinger & Matthew Holding
Understanding how interspecific interactions mould the molecular basis of adaptations in coevolving species is a long-sought goal of evolutionary biology. Venom in predators and venom resistance proteins in prey are coevolving molecular phenotypes, and while venoms are highly complex mixtures it is unclear if prey respond with equally complex resistance traits. Here we use a novel molecular methodology based on protein affinity columns to capture and identify candidate blood serum resistance proteins (‘Venom Interactive Proteins’...

Data from: Urban heavy metal contamination limits bumble bee colony growth

Frances Sivakoff, Scott Prajzner & Mary Gardiner
1. Post-industrial shrinking cities contain abundant vacant land and are increasingly recognized for their pollinator conservation potential. At the same time, the industrial legacies of these urban ecosystems have resulted in elevated levels of heavy metals in surface soils, which could negatively affect bee populations. 2. We investigated whether foraging within heavy metal contaminated landscapes represents a fitness cost for the common Eastern bumble bee, Bombus impatiens, by placing colonies in residential backyards along an...

Registration Year

  • 2020

Resource Types

  • Dataset


  • The Ohio State University
  • United States Geological Survey
  • Arkansas State University
  • Columbia University
  • Max Planck Institute of Animal Behavior
  • Ontario Ministry of Natural Resources
  • University of Missouri
  • American Museum of Natural History
  • Yale University
  • University of California, Davis