26 Works

Artificial light at night amplifies seasonal relapse of haemosporidian parasites in a widespread songbird

Daniel Becker, Devraj Singh, Qiuyun Pan, Jesse Montoure, Katherine Talbott, Sarah Wanamaker & Ellen Ketterson
Urban habitats can shape interactions between hosts and parasites by altering within-host processes such as resistance. Artificial light at night is common in urban environments, and chronic exposure can impair host immunity in ways that may increase infection. However, studies of causal links between this stressor, immunity, and infection dynamics are rare, particularly in migratory animals. Here, we experimentally tested how artificial light at night affects cellular immunity and intensity of infection with haemosporidian parasites...

Data for Body mass-related changes in mammal community assembly patterns during the late Quaternary of North America

Silvia Pineda-Munoz
The late Quaternary of North America was marked by prominent ecological changes, including the end-Pleistocene megafaunal extinction, the spread of human settlements, and the rise of agriculture. Here we examine the mechanistic reasons for temporal changes in mammal species association and body size during this time period. Building upon the co-occurrence results from Lyons et al. (2016) – wherein each species pair was classified as spatially aggregated, segregated, or random – we examined body mass...

Evolution of multivariate wing allometry in schizophoran flies (Diptera: Schizophora)

Patrick T. Rohner
The proximate and ultimate mechanisms underlying scaling relationships as well as their evolutionary consequences remain an enigmatic issue in evolutionary biology. Here I investigate the evolution of wing allometries in the Schizophora, a group of higher Diptera that radiated ~65 million years ago, by studying static allometries in five species using multivariate approaches. Despite the vast ecological diversity observed in contemporary members of the Schizophora and independent evolutionary histories throughout most of the Cenozoic, size-related...

Substrate quality drives fungal necromass decay and decomposer community structure under contrasting vegetation types

Katilyn Beidler, Richard Phillips, Erin Andrews, François Maillard, Ryan Mushinski & Peter Kennedy
1. Fungal mycelium is increasingly recognized as a central component of soil biogeochemical cycling, yet our current understanding of the ecological controls on fungal necromass decomposition is limited to single sites and vegetation types. 2. By deploying common fungal necromass substrates in a temperate oak savannah and hardwood forest in the midwestern USA, we assessed the generality of the rate at which high- and low-quality fungal necromass decomposes; further, we investigated how the decomposer ‘necrobiome’...

MonaLog: a Lightweight System for Natural Language Inference Based on Monotonicity

Hai Hu, Qi Chen, Kyle Richardson, Atreyee Mukherjee, Lawrence S. Moss & Sandra Kübler

Living in Your Letters: Assessing Congruence Between Espoused and Enacted Values of One Fraternity/Sorority Community

Heather Matthews, Leigh Featherstone, Lisa Blunder, Allison J. Gerling, Sarah Lodge & Rachel B. Messenger

Sexual size dimorphism is associated with reproductive life history trait differentiation in coexisting sepsid flies

Wolf Blanckenhorn, Julian Baur, Juan Pablo Busso, Athene Giesen, Natalia Gourgoulianni, Nicola Van Koppenhagen, Jeannine Roy, Martin Schäfer, Alexandra Wegmann & Patrick Rohner
Organismal life histories evolve as syndromes, resulting in correlated evolutionary differentiation of key traits that ultimately aid in discerning species. Reproductive success depends both on the absolute body size of an individual and its size relative to the opposite sex: sexual size dimorphism. In an attempt to further elucidate their coexistence and ecological diversification, we compared standard life history (first reproduction, clutch size, egg size) and associated reproductive trait differentiation of 15 widespread European sepsid...

Regional differences in the abiotic environment contribute to genomic divergence within a wild tomato species

Matthew Gibson
The wild currant tomato Solanum pimpinellifolium inhabits a wide range of abiotic habitats across its native range of Ecuador and Peru. Although it has served as a key genetic resource for the improvement of domestic cultivars, little is known about the genetic basis of traits underlying local adaptation in this species, nor what abiotic variables are most important for driving differentiation. Here we use redundancy analysis (RDA) and other multivariate statistical methods (structural equation modeling...

Reactivation of latent infections with migration shapes population-level disease dynamics

Daniel Becker, Ellen Ketterson & Richard Hall
Annual migration is common across animal taxa and can dramatically shape the spatial and temporal patterns of infectious disease. Although migration can decrease infection prevalence in some contexts, these energetically costly long-distance movements can also have immunosuppressive effects that may interact with transmission processes in complex ways. Here we develop a mechanistic model for the reactivation of latent infections driven by physiological changes or energetic costs associated with migration (i.e., “migratory relapse”) and its effects...

Geyokcha Array, Turkmenistan

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As part of the Joint Seismic Program facilities in Central Asia an experimental high­ frequency array was installed in Turkmenistan in August 1993 adjacent to the GSN station ABKT. The Geyocha array was designed to try to push array signal enhancement capabilities to higher frequencies than existing array designs such as NORESS. This requirement was driven by a long-term goal of the JSP array group to try to extend the performance of seismic anays to...

Dairy Dialogue Map

Colby Vorland, Andrew Brown & David Allison

Data and R Markdown files for: Estimating the capacity of Chamaecrista fasciculata for adaptation to change in precipitation

Anna Peschel, Emma Boehm & Ruth Shaw
Adaptation through natural selection may be the only means by which small and fragmented plant populations will persist through present day environmental change. A population’s additive genetic variance for fitness (VA(W)) represents its immediate capacity to adapt to the environment in which it exists. We evaluated this property for a population of the annual legume Chamaecrista fasciculata through a quantitative genetic experiment in the tallgrass prairie region of the Midwest USA, where changing climate is...

Ecological and evolutionary drivers of hemoplasma infection and genotype sharing in a Neotropical bat community

Daniel Becker, Kelly Speer, Alexis Brown, Alex Washburne, Brock Fenton, Sonia Altizer, Daniel Streicker, Raina Plowright, Vladimir Chizhikov, Nancy Simmons & Dmitriy Volokhov
Most emerging pathogens can infect multiple species, underscoring the importance of understanding the ecological and evolutionary factors that allow some hosts to harbor greater infection prevalence and share pathogens with other species. However, our understanding of pathogen jumps is primarily based around viruses, despite bacteria accounting for the greatest proportion of zoonoses. Because bacterial pathogens in bats (Order: Chiroptera) can have conservation and human health consequences, studies that examine the ecological and evolutionary drivers of...

Rapid differentiation of plasticity in life history and morphology during invasive range expansion and concurrent local adaptation in the horned beetle Onthophagus taurus

Patrick T. Rohner & Armin P. Moczek
Understanding the interplay between genetic differentiation, ancestral plasticity, and the evolution of plasticity during adaptation to environmental variation is critical to predict populations’ responses to environmental change. However, the role of plasticity in rapid adaptation in nature remains poorly understood. We here use the invasion of the horned beetle Onthophagus taurus in the United States during the last half century to study the contribution of ancestral plasticity and post-invasion evolution of plastic responses in rapid...

Low costs of adaptation to dietary restriction

Roy Moger-Reischer, Elizabeth Snider, Kelsey McKenzie & Jay Lennon
Dietary restriction (DR) is the most successful and widespread means of extending organismal lifespan. However, the evolutionary basis of life extension under DR remains uncertain. The traditional evolutionary explanation is that when organisms experience DR, they allocate endogenous resources to survival and postpone reproduction until conditions improve. However, this life-extension strategy should be maladaptive if DR continues for multiple generations due to tradeoffs between longevity and reproduction. To test this prediction, we subjected the budding...

Data package from 'Pantropical variability in tree crown allometry' Global Ecology and Biogeography 2021. DOI: 10.1111/geb.13231

Grace Jopaul Loubota Panzou, Adeline Fayolle, Tommaso Jucker, Oliver Phillips, Stephanie Bohlman, Lindsay F. Banin, Simon L. Lewis, Kofi Affum-Baffoe, Luciana F. Alves, Cécile Antin, Eric Arets, Luzmila Arroyo, Timothy R. Baker, Nicolas Barbier, Hans Beeckman, Uta Berger, Yannick Enock Bocko, Frans Bongers, Sam Bowers, Thom Brade, Eduardo S. Brondizio, Arthur Chantrain, Jerome Chave, Halidou Compaore & David Coomes

Data from: Regulators of an ancient polyphenism evolved through episodic protein divergence and parallel gene radiations

Erik Ragsdale & Joseph Biddle
Polyphenism is a form of developmental plasticity that transduces environmental cues into discontinuous, often disparate phenotypes. In some cases, polyphenism has been attributed to facilitating morphological diversification and even the evolution of novel traits. However, this process is predicated on the origins and evolutionary maintenance of genetic mechanisms that specify alternate developmental networks. When and how regulatory loci arise and change, specifically before and throughout the history of a polyphenism, is little understood. Here, we...

Disentangling interactions among mercury, immunity, and infection in a Neotropical bat community

Daniel Becker, Kelly Speer, Jennifer Korstian, Dmitriy Volokhov, Hannah Droke, Alexis Brown, Catherene Baijnauth, Ticha Padgett-Stewart, Hugh Broders, Raina Plowright, Thomas Rainwater, Brock Fenton, Nancy Simmons & Matthew Chumchal
Contaminants such as mercury are pervasive and can have immunosuppressive effects on wildlife. Impaired immunity could be important for forecasting pathogen spillover risks, as many land-use changes that generate mercury contamination also bring wildlife into close contact with humans and domestic animals. However, the interactions among contaminants, immunity, and infection are difficult to study in natural systems, and empirical tests of possible directional relationships remain rare. We capitalized on extreme mercury variation in a diverse...

Supplemental data for article: DNA content variation and SNP diversity within a single population of asexual snails

Kara Million, Amrita Bhattacharya, Zoe Dinges, Sarah Montgomery, Eries Smith & Curtis Lively
A growing body of research suggests that many clonal populations maintain genetic diversity even without occasional sexual reproduction. The purpose of our study was to document variation in SNP diversity, DNA content, and pathogen susceptibility in clonal lineages of the New Zealand freshwater snail, Potamopyrgus antipodarum. We studied snails that were collected from multiple field sites around a single lake (Lake Alexandrina), as well as isofemale clonal lineages that had been isolated and maintained in...

Narrating the professional self

Maria Shardakova
This presentation examines Russian Flagship students’ personal statements as they (the statements) evolve and change over time to reflect the students’ developing subject positions and group identities. The narrative approach that has been adopted by organizational studies (Gabriel, 2017; Schreyögg, 2005; Tirvassen, 2018) helps demonstrate how students construct the institution of the Language Flagship and their experience of it. Given that cultivating the next generation of global professionals is the primary mission of the Language...

Data from: Assessing biological factors affecting post-speciation introgression

Jennafer Hamlin, Mark Hibbins & Leonie Moyle
An increasing number of phylogenomic studies have documented a clear ‘footprint’ of post-speciation introgression among closely-related species. Nonetheless, systematic genome-wide studies of factors that determine the likelihood of introgression remain rare. Here, we propose an a priori hypothesis-testing framework that uses introgression statistics—including a new metric of estimated introgression, Dp —to evaluate general patterns of introgression prevalence and direction across multiple closely related species. We demonstrate this approach using whole genome sequences from 32 lineages...

Local adaptation from afar: migratory bird populations diverge in the initiation of reproductive timing while wintering in sympatry

Sarah Wanamaker, Devraj Singh, Allison Byrd, Tara Smiley & Ellen Ketterson
The initiation of reproduction in many seasonally breeding animals is controlled by photoperiod and tends to be clinal: populations at higher latitudes breed later than those at lower latitudes, often reflecting a higher photoperiodic threshold. Migratory animals presumably time reproduction to match conditions at their breeding grounds at least in part by cues perceived on their wintering grounds. We asked how closely related dark-eyed junco (Junco hyemalis) populations that overwinter in sympatry but breed in...

Evolution and plasticity of morph-specific integration in the bull-headed dung beetle Onthophagus taurus

Patrick T. Rohner, Anna Macagno & Armin Moczek
Developmental and evolutionary processes underlying phenotypic variation frequently target several traits simultaneously, thereby causing covariation, or integration, among phenotypes. While phenotypic integration can be neutral, correlational selection can drive adaptive covariation. Especially the evolution and development of exaggerated secondary sexual traits may require the adjustment of other traits that support, compensate for, or otherwise function in a concerted manner. Although phenotypic integration is ubiquitous, the interplay between genetic, developmental, and ecological conditions in shaping integration...

Don’t stand so close to me: microbiota-facilitated enemy release dynamics in introduced Onthophagus taurus dung beetles.

Erik Parker
Microbial symbionts can influence their hosts in stunningly diverse ways. Emerging research suggests that an underappreciated facet of these relationships is the influence microbes can have on their host’s responses to novel, or stressful, environmental conditions. We sought to address these and related questions in populations resulting from the recent introduction and subsequent rapid range expansion of Onthophagus taurus dung beetles. Specifically, we manipulated both microbial communities and rearing temperature to detect signatures of developmental...

Registration Year

  • 2020
    26

Resource Types

  • Dataset
    23
  • Text
    3

Affiliations

  • Indiana University Bloomington
    25
  • University of Georgia
    3
  • University of Minnesota
    2
  • Western University
    2
  • Montana State University
    2
  • American Museum of Natural History
    2
  • Royal Museum for Central Africa
    1
  • China Food and Drug Administration
    1
  • University of Liège
    1
  • UK Centre for Ecology & Hydrology
    1