9 Works

Data from: Inconspicuous echolocation in hoary bats (Lasiurus cinereus)

Aaron J. Corcoran, Ted J. Weller & Theodore J. Weller
Echolocation allows bats to occupy diverse nocturnal niches. Bats almost always use echolocation, even when other sensory stimuli are available to guide navigation. Here, using arrays of calibrated infrared cameras and ultrasonic microphones, we demonstrate that hoary bats (Lasiurus cinereus) use previously unknown echolocation behaviors that challenge our current understanding of echolocation. We describe a novel call type (“micro” calls) that has three orders of magnitude less sound energy than other bat calls used in...

Data from: Synergistic selection regimens drive the evolution of display complexity in birds of paradise

Meredith C. Miles & Matthew J. Fuxjager
1. Integrated visual displays that combine gesture with color are nearly ubiquitous in the animal world, where they evolve in response to sexual selection for their role in courtship and competition. However, few studies examine how multiple selection regimens shape each component of these complex phenotypes on a macroevolutionary scale. 2. Here we study this issue by assessing how both sexual and ecological selection work together to influence visual display complexity in the birds of...

Data from: Grass competition overwhelms effects of herbivores and precipitation on early tree establishment in Serengeti

Thomas A. Morrison, Ricardo M. Holdo, Deusdedith M. Rugemalila, Mawazo Nzunda & T. Michael Anderson
1. Savanna ecosystems span a diverse range of climates, edaphic conditions and disturbance regimes, the complexity of which has stimulated long-standing interest in the mechanisms that maintain tree-grass coexistence. One hypothesis suggests that tree establishment is strongly limited by one or several demographic bottlenecks at early stages of the tree life cycle. A major impediment to testing this hypothesis is the lack of data on the relative strengths of different bottlenecks across key environmental gradients....

Data from: Differing patterns of stress and craving across the day in moderate-heavy alcohol consumers during their typical drinking routine and an imposed period of alcohol abstinence

Rhiannon E. Mayhugh, W. Jack Rejeski, Meredith R. Petrie, Paul J. Laurienti & Lise Gauvin
Background: Stress is a known factor related to alcohol use. However, how the relationship between alcohol craving and stress varies across the day is not fully understood. As craving is a consistent predictor of alcohol use disorder (AUD), understanding stress and craving patterns across the day in routine, non-dependent, moderate-heavy alcohol consumers may help in understanding those who may be vulnerable to transitioning into AUD. Method: Moderate-heavy drinkers were recruited from the local community (n=32)...

Data from: The burning question: does fire affect habitat selection and forage preference of the black rhinoceros Diceros bicornis in East African savannahs?

T. Michael Anderson, Philbert M. Ngoti, Mawazo L. Nzunda, Daniel M. Griffith, James D.M. Speed, Frode Fossoy, Eivin Roskaft & Bente J. Graae
Endangered species conservation requires information on how management activities influence habitat quality. The black rhinoceros (Diceros bicornus) is critically endangered and restricted to savannas representing ~5% of its historical range. Fire is used extensively in savanna, but little is known about how rhinos respond to burning. Our aim was to understand rhino responses to fire by studying habitat selection and foraging at multiple scales. We used resource selection functions and GPS locations of 31 rhinos...

Data from: Identifying drivers of spatial variation in occupancy with limited replication camera trap data

Staci A. Hepler, Robert Erhardt & T. Michael Anderson
Occupancy models are widely used in camera trap studies to analyze species presence, abundance, and geographic distribution, among other important ecological quantities. These models account for imperfect detection using a latent variable to distinguish between true presence/absence and observed detection of a species. Under certain experimental setups, parameter estimation in a latent variable framework can be challenging. Several studies have issued guidelines on the number of independent replicated observations (surveys) needed for each unchanging occupancy...

Data from: Natural language processing and recurrent network models for identifying genomic mutation-associated cancer treatment change from patient progress notes

Meijian Guan, Samuel Cho, Robin Petro, Wei Zhang, Boris Pasche & Umit Topaloglu
Objectives: Natural language processing (NLP) and machine learning approaches were used to build classifiers to identify genomic-related treatment changes in the free-text visit progress notes of cancer patients. Methods: We obtained 5,889 de-identified progress reports (2,439 words on average) for 755 cancer patients who have undergone a clinical Next Generation Sequencing (NGS) testing in Wake Forest Baptist Comprehensive Cancer Center for our data analyses. An NLP system was implemented to process the free-text data and...

Data from: Herbivory and eutrophication mediate grassland plant nutrient responses across a global climatic gradient

T. Michael Anderson, Daniel M. Griffith, James B. Grace, Eric M. Lind, Peter B. Adler, Lori A. Biederman, Dana M. Blumenthal, Pedro Daleo, Jennifer Firn, Nicole Hagenah, W. Stanley Harpole, Andrew S. MacDougall, Rebecca L. McCulley, Suzanne M. Prober, Anita C. Risch, Mahesh Sankaran, Martin Schütz, Eric W. Seabloom, Carly J. Stevens, Lauren L. Sullivan, Peter D. Wragg & Elizabeth T. Borer
Plant stoichiometry, the relative concentration of elements, is a key regulator of ecosystem functioning and is also being altered by human activities. In this paper we sought to understand the global drivers of plant stoichiometry and compare the relative contribution of climatic vs. anthropogenic effects. We addressed this goal by measuring plant elemental (C, N, P and K) responses to eutrophication and vertebrate herbivore exclusion at eighteen sites on six continents. Across sites, climate and...

Data from: Cardiac vagal dysfunction moderates patterns of craving across the day in moderate to heavy consumers of alcohol

Rhiannon E. Mayhugh, Paul J. Laurienti, Jason Fanning, Lise Gauvin, Keri J. Heilman, Stephen W. Porges & W. Jack Rejeski
Background: Alcohol craving, a known correlate of vulnerability to Alcohol Use Disorder (AUD), has been found to be inversely related to cardiac vagal tone (CVT). Here we examine how resting CVT, CVT reactivity to a postural challenge, and their interaction influence craving during imposed alcohol abstinence and their usual drinking among moderate to heavy drinkers. Methods: Participants were recruited from the local community (final n=29) and assessed for CVT functioning via respiratory sinus arrhythmia (RSA)...

Registration Year

  • 2018
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  • Wake Forest University
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  • Oregon State University
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