97 Works

Variation in the location and timing of experimental severing demonstrates that the persistent rhizome serves multiple functions in a clonal forest understory herb

Katherine Eisen, Gregor-Fausto Siegmund, Maxine Watson & Monica Geber
1. In clonal plants, persistent rhizomes can serve multiple purposes, including resource storage, modulation of heterogenous resource distributions, maintenance of bud banks and promotion of recovery from disturbance. Clonal plants are commonly long-lived and, in temperate zones, often exhibit organ preformation. Thus, investigations of how the timing of disturbance to the rhizome affects plant performance must occur over multiple growing seasons, but these types of studies are rare. 2. We conducted a field experiment to...

Data from Two-year Randomized Controlled Study on Daily Self-weighing Among Workplace Employees in Ithaca, NY, 2017-2019

David A. Levitsky & Laura K. Barré

Dataset: Experimental evaluation of herbicide use on biodiversity, ecosystem services and timber production tradeoffs in forest plantations.

Thomas D Stokely
This dataset consists of species richness of native plants, pollinators, and birds, ecosystem service response variables, and timber and revenue projections from forest plantations of the Oregon Coast Range, collected during the first 6 years of stand establishment (2011-2016). The objectives of the Intensive Forest Management experiment were to quantify the effects of herbicide use on biodiversity and ecosystem services and the relative tradeoffs between timber production and ecosystem services.

Dataset: Charge order textures induced by non-linear couplings in a half-doped manganite

Ismail El Baggari, David Baek, Michael Zachman, Di Lu, Yasuyuki Hikita, Harold Hwang, Elizabeth Nowadnick & Lena Kourkoutis
Raw data associated with publication. The self-organization of strongly interacting electrons into superlattice structures underlies the properties of many quantum materials. How these electrons arrange within the superlattice dictates what symmetries are broken and what ground states are stabilized. Here we show that cryogenic scanning transmission electron microscopy (cryo-STEM) enables direct mapping of local symmetries and order at the intra-unit-cell level in the model charge-ordered system Nd1/2Sr1/2MnO3. In addition to imaging the prototypical site-centered charge...

Data from: Broad geographic sampling reveals predictable, pervasive, and strong seasonal adaptation in Drosophila

Heather E. Machado, Alan O. Bergland, Ryan Taylor, Susanne Tilk, Emily Behrman, Kelly Dyer, Daniel K. Fabian, Thomas Flatt, Josefa González, Talia L. Karasov, Iryna Kozeretska, Brian P. Lazzaro, Thomas JS Merritt, John E. Pool, Katherine O’Brien, Subhash Rajpurohit, Paula R. Roy, Stephen W. Schaeffer, Svitlana Serga, Paul Schmidt, Dmitri Petrov & Bernard Kim
To advance our understanding of adaptation to temporally varying selection pressures, we identified signatures of seasonal adaptation occurring in parallel among Drosophila melanogaster populations. Specifically, we estimated allele frequencies genome-wide from flies sampled early and late in the growing season from 20 widely dispersed populations. We identified parallel seasonal allele frequency shifts across North America and Europe, demonstrating that seasonal adaptation is a general phenomenon of temperate fly populations. Seasonally fluctuating polymorphisms are enriched at...

Genomic data reveal the biogeographic and demographic history of Ammospiza sparrows in northeast tidal marshes

Jennifer Walsh, Adrienne Kovach, Phred Benham, Gemma Clucas, Virginia Winder & Irby Lovette
Aim: Shaped by both climate change and sea-level rise, tidal salt marshes represent ephemeral systems that are home to only a few, highly specialized species. The dynamic ecological histories and spatial complexities of these habitats, however, render it challenging to reconstruct the complete biogeographic histories of their endemic taxa. Here, we leverage three species of North American Ammospiza sparrows that inhabit tidal marshes ( Ammospiza caudacuta, A. maritima, and A. n. subvirgatus) and closely related...

A physicochemical model of odor sampling

Mitchell Gronowitz, Adam Liu, Qiang Qiu, Ron Yu & Thomas Cleland
We present a general physicochemical sampling model for olfaction, based on established pharmacological laws, in which arbitrary combinations of odorant ligands and receptors can be generated and their individual and collective effects on odor representations and olfactory performance measured. Individual odor ligands exhibit receptor-specific affinities and efficacies; that is, they may bind strongly or weakly to a given receptor, and can act as strong agonists, weak agonists, partial agonists, or antagonists. Ligands interacting with common...

Data from: Predator performance and fitness Is dictated by herbivore prey type plus indirect effects of their host plant

Todd Ugine, Harsimran Gill, Nicolo Hernandez, Robert Grebenok, Spencer Behmer & John Losey
Animals, including herbivores and predators, use diet-mixing to balance their macro- and micronutrient intake. Recent work demonstrated that lady beetles fed only pea aphids from fava beans had reduced fitness caused by a deficiency of dietary sterols. However, beetles redressed this deficit by eating fava bean leaves. In the current study we used Coccinella septempunctata as a model to test the hypotheses that pea aphids are a poor sterol resource independent of their host plant,...

Landscape composition mediates the relationship between predator body size and pest control

Ricardo Perez-Alvarez, Heather Grab, Anthony Polyakov & Katja Poveda
Understanding the mechanisms contributing to positive relationships between predator diversity and natural pest control is fundamental to inform more effective management practices to support sustainable crop production. Predator body size can provide important insights to better understand and predict such predator-pest interactions. Yet, most studies exploring the link between predator body size and pest control have been conducted in species-poor communities under controlled environmental conditions, limiting our ability to generalize this relationship across heterogeneous landscapes....

Patterns of genetic divergence and demographic history shed light on island-mainland population dynamics and melanic plumage evolution in the white-winged fairywren

Jennifer Walsh
The existence of distinct traits in island versus mainland populations offers opportunities to gain insights into how eco-evolutionary processes operate under natural conditions. We used two island colonization events in the white-winged fairywren (Malurus leucopterus) to investigate the genomic and demographic origin of melanic plumage. This avian species is distributed across most of Australia, and males of the mainland subspecies (M. l. leuconotus) exhibit a blue nuptial plumage in contrast to males of two island...

Bill size, bill shape, and body size constrain bird song evolution on a macroevolutionary scale

Amelia-Juliette Demery, Kevin Burns & Nicholas Mason
Studying macroevolutionary patterns of phenotypic variation and their driving forces in large radiations can shed light on how biodiversity is generated across broad spatiotemporal scales. In this study, we integrated song and morphological variation across more than 300 species representing the largest family of songbirds, the tanagers (Thraupidae), to uncover how morphological variables of the vocal tract combine to shape vocal evolution on a macroevolutionary scale. We found that body size correlated with multiple frequency...

Genetic relatedness in social groups of the emerald coral goby Paragobiodon xanthosoma creates potential for weak kin selection

Theresa Rueger, Peter Buston, Steven Bogdanowicz & Marian Wong
The explanation for why animals form social groups that include breeders and non-breeders is an evolutionary puzzle with some parts yet unsolved. Ecological constraints explain why non-breeders do not disperse to breed on their own, while social constraints explain why they do not contest to breed at home. Often kin selection explains why non-breeders behave cooperatively. Originally kin selection was assumed to play no role in social evolution in organisms with dispersive larval phases, such...

Cortex cis-regulatory switches establish scale colour identity and pattern diversity in Heliconius

Luca Livraghi, Joseph J. Hanly, Ling Sheng Loh, Anna Ren, Ian A. Warren, Carolina Concha, Charlotte Wright, Jonah M. Walker, Jessica Foley, Henry Arenas-Castro, Arnaud Martin, William O. McMillan, Chris D. Jiggins, Steven M. Van Bellghem, Gabriela Montejo-Kovacevich, James J. Lewis, Micheal W. Perry, Zachary H. Goldberg, Laura H. Lopez, Riccardo Papa & Eva S.M. Van Der Heijden
In Heliconius butterflies, wing pattern diversity is controlled by a few genes of large effect that regulate colour pattern switches between morphs and species across a large mimetic radiation. One of these genes, cortex, has been repeatedly associated with colour pattern evolution in butterflies. Here we carried out CRISPR knock-outs in multiple Heliconius species and show that cortex is a major determinant of scale cell identity. Chromatin accessibility profiling and introgression scans identified cis-regulatory regions...

Age and social experience induced plasticity across brain regions of the paper wasp Polistes fuscatus

Christopher Jernigan, Natalie Zaba & Michael Sheehan
Developmental studies of brain volumes can reveal which portions of neural circuits are sensitive to environmental inputs. In social insects, differences in relative investment across brain regions emerge as behavioral repertoires change during ontogeny or as a result of experience. Here, we test the effects of maturation and social experience on morphological brain development in Polistes fuscatus paper wasps, focusing on brain regions involved in visual and olfactory processing. We find that mature wasps regardless...

Context dependent benefits of aphids for bacteria in the phyllosphere.

Melanie Smee & Tory Hendry
Insect herbivores, like aphids, are common on plants yet how they interact with plant microbiomes remains largely unknown. For instance, for the widespread bacterial epiphyte and potential aphid pathogen Pseudomonas syringae, aphids could impact bacterial populations by serving as secondary hosts or by altering the epiphytic habitat through feeding and/or waste secretion. Here we examined if the pea aphid, Acyrthosiphon pisum, could influence epiphytic populations of P. syringae. First, we quantified epiphytic growth ability without...

Data from: Selection of floral traits by pollinators and seed predators during sequential life history stages

Diane Campbell, Mascha Bischoff, Robert Raguso, Heather Briggs & Paula Sosenski
Organismal traits often influence fitness via interactions with multiple species. That selection is not necessarily predictable from pairwise interactions, such as when interactions occur during different lifecycle stages. Theoretically, directional selection during two sequential episodes, e.g., pollination and seed survival, can generate quadratic or correlational selection for a set of traits that passes both selective filters. We compared strength of selection during pollination versus seed predation in the field and tested whether interactions with multiple...

Genetic mechanisms and correlational selection structure trait variation in a coral snake mimic

John David Curlis, Alison Davis Rabosky, Iris Holmes, Timothy Renney & Christian Cox
Covariation among traits shapes both phenotypic evolution and ecological interactions across space and time. However, rampant geographic variation in the strength and direction of such correlations can be particularly difficult to explain through generalized mechanisms. By integrating population genomics, surveys of natural history collections, and spatially-explicit analyses, we tested multiple drivers of trait correlations in a coral snake mimic that exhibits remarkable polymorphism in mimetic and non-mimetic color traits. We found that although such traits...

Data for Manuscript: A desert songbird with no confamilials in the Western Hemisphere (Verdin, Auriparus flaviceps) investigates divergent conspecific songs

Emma Greig, Eva Kinnebrew, Max Witynski & Eric Larsen
This is the dataset that accompanies the manuscript: A desert songbird with no confamilials in the Western Hemisphere (Verdin, Auriparus flaviceps) investigates divergent conspecific songs, published in the journal Ornithology (2021). One spreadsheet is a dataset for analysis of Verdin song acoustic structure (“Supplementary Material Acoustic Data.xls”), one spreadsheet is a dataset for analysis of Verdin response to playbacks (“Supplementary Material Playback Data.xls”), and one spreadsheet is metadata about all the recordings used in the...

Data from: Accelerated diversification explains the exceptional species richness of tropical characoid fishes

Bruno Melo, Brian Sidlauskas, Thomas Near, Fabio Roxo, Ava Ghezelayagh, Luz Ochoa, Melanie Stiassny, Jairo Arroyave, Jonathan Chang, Brant Faircloth, Daniel MacGuigan, Richard Harrington, Ricardo Benine, Michael Burns, Kendra Hoekzema, Natalia Sanches, Javier Maldonado-Ocampo, Ricardo Castro, Fausto Foresti, Michael Alfaro & Claudio Oliveira
The Neotropics harbor the most species-rich freshwater fish fauna on the planet, but the timing of that exceptional diversification remains unclear. Did the Neotropics accumulate species steadily throughout their long history, or attain their remarkable diversity recently? Biologists have long debated the relative support for these museum and cradle hypotheses, but few phylogenies of megadiverse tropical clades have included sufficient taxa to distinguish between them. We used 1288 ultraconserved element loci spanning 293 species, 211...

Filoplume morphology and number data

Vanya Rohwer
Do birds detect and respond to forces acting on feathers through filoplumes, which appear to be unique mechanosensory feathers? If filoplumes function as sensors, their morphology should co-vary with the morphology of their companion feather to better detect feather movements and position. We explore covariation in filoplumes and primaries across five species of birds that vary in body size, molt strategy, and the functional life-span of their primaries (Green-wing Teal, Ring-billed Gull, Turkey Vulture, Red-tailed...

Data from: The Effects of Host Availability and Fitness on Aedes albopictus Blood Feeding Patterns in New York

Kara Fikrig, Elisabeth Martin, Sharon Dang, Kimberly St Fleur, Henry Goldsmith, Sophia Qu, Hannah Rosenthal, Sylvie Pitcher & Laura Harrington

Evolution and regulation of microbial secondary metabolism

Joao Xavier, Francisc Pinto, Zhe Wang, Kyu Rhee, Chen Liao, Guillem Santamaria & Jinyuan Yan
Microbes have disproportionate impacts on the macroscopic world. This is in part due to their ability to grow to large groups and cooperatively secrete massive amounts of secondary metabolites that impact their environment. Yet, the conditions enabling secondary metabolism without compromising primary needs remain unclear. Here we investigated the biosynthesis of thamnolipids, a secondary metabolite that Pseudomonas aeruginosa makes to decrease the surface tension of surrounding liquid. Using a combination of genomics, metabolomics, transcriptomics, and...

Registration Year

  • 2021
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Affiliations

  • Cornell University
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  • University of Florida
    6
  • University of Georgia
    5
  • Princeton University
    3
  • Duke University
    3
  • George Washington University
    3
  • Oregon State University
    3
  • University of Minnesota
    3
  • University of Chicago
    3
  • Max Planck Institute for Ornithology
    2