88 Works

Warming during maternal generations delays offspring germination in native and nonnative species

Meredith Zettlemoyer & Jennifer Lau
As environmental conditions shift due to global warming and other human-caused environmental changes, plastic responses in phenological traits like germination or flowering time may become increasingly important. While phenological plasticity is a common response to global warming, with many populations exhibiting earlier germination or flowering in warmer years, warming may also result in transgenerational plasticity, especially on early life stages. In other words, seeds produced by mothers inhabiting warmer environments may germinate faster (or slower)...

Supplemental material for: NINDS consensus diagnostic criteria for Traumatic Encephalopathy Syndrome

Douglas Katz, Charles Bernick, David Dodick, Jesse Mez, Megan Mariani, Charles Adler, Michael Alosco, Laura Balcer, Sarah Banks, William Barr, David Brody, Robert Cantu, Kristen Dams-O'Connor, Yonas Geda, Barry Jordan, Thomas McAllister, Elaine Peskind, Ronald Petersen, Jennifer Wether, Ross Zafonte, Eimear Foley, Debra Babcock, Walter Koroshetz, Ann McKee, Martha Shenton … & Robert Stern
Objective: To develop evidence-informed, expert consensus research diagnostic criteria for Traumatic Encephalopathy Syndrome (TES), the clinical disorder associated with neuropathologically diagnosed Chronic Traumatic Encephalopathy (CTE). Methods: A panel of 20 expert clinician-scientists in neurology, neuropsychology, psychiatry, neurosurgery, and physical medicine and rehabilitation, from 11 academic institutions, participated in a modified Delphi procedure to achieve consensus, initiated at the First NINDS Consensus Workshop to Define the Diagnostic Criteria for TES, April, 2019. Prior to consensus, panelists...

Data from: The relationship between native species richness and exotic species richness or occurrence will always be negative when the total number of species is accounted for in statistical models: A response to Beaury et al.

Ranjan Muthukrishnan
Beaury et al. (2020) attempt to address the scale dependence of evidence for biotic resistance by including environmental covariates that can account for total species richness. However, this approach will incorrectly estimate relationships, driven by the accuracy of the covariates rather than the true relationship between native and non-native species.

Data from: Morphological integration in the hominin dentition: evolutionary, developmental, and functional factors.

Aida Gómez-Robles & P. David Polly
As the most common and best preserved remains in the fossil record, teeth are central to our understanding of evolution. However, many evolutionary analyses based on dental traits overlook the constraints that limit dental evolution. These constraints are diverse, ranging from developmental interactions between the individual elements of a homologous series (the whole dentition) to functional constraints related to occlusion. This study evaluates morphological integration in the hominin dentition and its effect on dental evolution...

Data from: Diplogastrellus nematodes are sexually transmitted mutualists that alter the bacterial and fungal communities of their beetle host

Cristina C. Ledón-Rettig, Armin P. Moczek & Erik J. Ragsdale
A recent accumulation of studies has demonstrated that nongenetic, maternally transmitted factors are often critical to the health and development of offspring and can therefore play a role in ecological and evolutionary processes. In particular, microorganisms such as bacteria have been championed as heritable, symbiotic partners capable of conferring fitness benefits to their hosts. At the same time, parents may also pass various nonmicrobial organisms to their offspring, yet the roles of such organisms in...

Data from: Pervasive and strong effects of plants on soil chemistry: a meta-analysis of individual plant ‘Zinke’ effects

Bonnie G. Waring, Leonor Álvarez-Cansino, Kathryn E. Barry, Kristen K. Becklund, Sarah Dale, Maria G. Gei, Adrienne B. Keller, Omar R. Lopez, Lars Markesteijn, Scott Mangan, Charlotte E. Riggs, Maria Elizabeth Rodríguez-Ronderos, R. Max Segnitz, Stefan A. Schnitzer & Jennifer S. Powers
Plant species leave a chemical signature in the soils below them, generating fine-scale spatial variation that drives ecological processes. Since the publication of a seminal paper on plant-mediated soil heterogeneity by Paul Zinke in 1962, a robust literature has developed examining effects of individual plants on their local environments (individual plant effects). Here, we synthesize this work using meta-analysis to show that plant effects are strong and pervasive across ecosystems on six continents. Overall, soil...

Data from: Running with the Red Queen: host-parasite coevolution selects for biparental sex

Levi T. Morran, Olivia G. Schmidt, Ian A. Gelarden, & Curtis M. Lively
Most organisms reproduce through outcrossing, even though it comes with significant costs. The Red Queen hypothesis proposes that selection from coevolving pathogens facilitates the persistence of outcrossing in spite of these costs. We utilized experimental coevolution to test the Red Queen hypothesis, and found that coevolution with a bacterial pathogen (Serratia marcescens) resulted in significantly more outcrossing in mixed mating experimental populations of the nematode Caenorhabditis elegans. Furthermore, we found that coevolution with the pathogen...

Data from: The origins of novelty from within the confines of homology: the developmental evolution of the digging tibia of dung beetles

David Linz, Hu Yonggang & Armin Moczek
Understanding the origin of novel complex traits is among the most fundamental goals in evolutionary biology. The most widely used definition of novelty in evolution assumes the absence of homology, yet where homology ends and novelty begins is increasingly difficult to parse as evo devo continuously revises our understanding of what constitutes homology. Here, we executed a case study to explore the earliest stages of innovation by examining the tibial teeth of tunneling dung beetles....

Data from: Directional cultural change by modification and replacement of memes

Gonçalo C Cardoso & Jonathan W Atwell
Evolutionary approaches to culture remain contentious. A source of contention is that cultural mutation may be substantial and, if it drives cultural change, then current evolutionary models are not adequate. But we lack studies quantifying the contribution of mutations to directional cultural change. We estimated the contribution of one type of cultural mutations – modification of memes - to directional cultural change using an amenable study system: learned birdsongs in a species that recently entered...

Data from: Reduced drought tolerance during domestication and the evolution of weediness results from tolerance-growth trade-offs

Elizabeth Katherine Koziol, Loren H. Rieseberg, Nolan Coburn Kane & James D. Bever
The increased reproductive potential, size, shoot allocation, and growth rate of weedy plants may result from reduced resource allocation to other aspects of plant growth and defense. To investigate whether changes in resource allocation occurred during domestication or the evolution of weediness, we compared the mycorrhizal responsiveness, growth, and drought tolerance of nine native ruderal, nine agriculturally weedy (four US weedy and five Australian weedy), and fourteen domesticated populations (eight ancient landraces and six improved...

Data from: Isotopic evidence for oligotrophication of terrestrial ecosystems

Joseph M. Craine, Andrew J. Elmore, Lixin Wang, Julieta Aranibar, Marijn Bauters, Pascal Boeckx, Brooke E. Crowley, Melissa A. Dawes, Sylvain Delzon, Alex Fajardo, Yunting Fang, Lei Fujiyoshi, Alan Gray, Rossella Guerrieri, Michael J. Gundale, David J. Hawke, Peter Hietz, Mathieu Jonard, Elizabeth Kearsley, Tanaka Kenzo, Mikhail Makarov, Sara Marañón-Jiménez, Terrence P. McGlynn, Brenden E. McNeil, Stella G. Mosher … & Katarzyna Zmudczyńska-Skarbek
Human societies depend on an Earth System that operates within a constrained range of nutrient availability, yet the recent trajectory of terrestrial nitrogen (N) availability is uncertain. Examining patterns of foliar N concentrations ([N]) and isotope ratios (15N) from more than 42,000 samples acquired over 37 years, here we show that foliar [N] declined by 8% and foliar 15N declined by 0.8 – 1.9 ‰. Examining patterns across different climate spaces, foliar 15N declined across...

Light availability and rhizobium variation interactively mediate the outcomes of legume-rhizobium symbiosis

Katy Heath, Justin Podowski, Stephanie Heniff, Christie Klinger, Jennifer Lau, Wendy Yang, Dylan Weese & Patricia Burke
Premise of the study: Nutrients, light, water, and temperature are key factors limiting the growth of individual plants in nature. Mutualistic interactions between plants and microbes often mediate resource limitation for both partners. In the mutualism between legumes and rhizobia, plants provide rhizobia with carbon in exchange for fixed nitrogen. Because partner quality in mutualisms is genotype-dependent, within-species genetic variation is expected to alter the responses of mutualists to changes in the resource environment. Here...

Longitudinal white-matter abnormalities in sports-related concussion: a diffusion MRI study of the NCAA-DoD CARE Consortium

Yu-Chien Wu, Jaroslaw Harezlak, Nahla Elsaid, Zikai Lin, Qiuting Wen, Sourajit Mustafi, Larry Riggen, Kevin Koch, Andrew Nencka, Timothy Meier, Andrew Mayer, Yang Wang, Christopher Giza, John DiFiori, Kevin Guskiewicz, Jason Mihalik, Stephen LaConte, Stefan Duma, Steven Broglio, Andrew Saykin, Michael McCrea & Thomas McAllister
Objective To study longitudinal recovery trajectories of white-matter after sports-related concussion (SRC), we performed diffusion tensor imaging (DTI) on collegiate athletes who sustained SRC. Methods Collegiate athletes (n=219, 82 concussed athletes, 68 contact-sport controls, and 69 non-contact-sport controls) were included from the Concussion Assessment, Research and Education (CARE) Consortium. The participants completed clinical assessments and DTI at four time points: 24-48-hours post-injury, asymptomatic state, seven days following return-to-play, and six-months post-injury. Tract-based spatial statistics were...

Supplementary data for: Primate phylogenomics uncovers multiple rapid radiations and ancient interspecific introgression

Dan Vanderpool, Bin Quang Minh, Robert Lanfear, Daniel Hughes, Shwetha Murali, R. Alan Harris, Muthuswamy Raveendran, Donna M. Muzny, Richard A. Gibbs, Kim C. Worley, Jeffrey Rogers, Matthew W. Hahn, Mark S. Hibbins & Robert J. Williamson
Our understanding of the evolutionary history of primates is undergoing continual revision due to ongoing genome sequencing efforts. Bolstered by growing fossil evidence, these data have led to increased acceptance of once controversial hypotheses regarding phylogenetic relationships, hybridization and introgression, and the biogeographical history of primate groups. Among these findings is a pattern of recent introgression between species within all major primate groups examined to date, though little is known about introgression deeper in time....

Data from: A phylogeny for the Drosophila montium species group: a model clade for comparative analyses

William Conner, Emily Delaney, Michael Bronski, Paul Ginsberg, Timothy Wheeler, Kelly Richardson, Brooke Peckenpaugh, Kevin Kim, Masayoshi Watada, Ary Hoffmann, Michael Eisen, Artyom Kopp, Brandon Cooper & Michael Turelli
The Drosophila montium species group is a clade of 94 named species closely related to the model D. melanogaster species group. The montium species group is distributed over a broad geographic range throughout Asia, Africa, and Australasia. Species of this group possess a wide range of morphologies, mating behaviors, and endosymbiont associations, making this clade useful for comparative analyses. We use genomic data from 42 available species to estimate the phylogeny and relative divergence times...

Observational evidence of herbivore-specific associational effects between neighboring conspecifics in natural, dimorphic populations of Datura wrightii

Jay Goldberg, Sonya Sternlieb, Genevieve Pintel & Lynda Delph
Associational effects – in which the vulnerability of a plant to herbivores is influenced by its neighbors – have been widely implicated in mediating plant-herbivore interactions. Studies of associational effects typically focus on interspecific interactions or pest-crop dynamics. However, associational effects may also be important for species with intraspecific variation in defensive traits. In this study, we observed hundreds of Datura wrightii – which exhibits dimorphism in its trichome phenotype – from over 30 dimorphic...

Genotypic variation in an ecologically important parasite is associated with host species, lake, and spore size

Clara Shaw, Rebecca Bilich, Bruce O'Brien, Carla Cáceres, Spencer Hall, Timothy James & Meghan Duffy
Genetic variation in parasites has important consequences for host-parasite interactions. Prior studies of the ecologically important parasite Metschnikowia bicuspidata have suggested low genetic variation in the species. Here, we collected M. bicuspidata from two host species (Daphnia dentifera and Ceriodaphnia dubia) and two regions (Michigan and Indiana, USA). Within a lake, outbreaks tended to occur in one host species but not the other. Using microsatellite markers, we identified six parasite genotypes grouped within three distinct...

The evolutionary genetics of paternal care: how good genes and extra-pair copulation affect the trade-off between paternal care and mating success

Courtney Fitzpatrick, Colette Ciresi & Michael Wade
We investigate the evolution of a gene for paternal care, with pleiotropic effects on male mating fitness and offspring viability, with and without extra pair copulations (EPCs). We develop a population genetic model to examine how pleiotropic effects of a male mating advantage and paternal care are affected by ‘good genes’ and EPCs. Using this approach, we show that the relative effects of each on fitness do not always predict the evolutionary change. We then...

Data from: A multi-tissue view on telomere dynamics and postnatal growth

Sarah Wolf & Kimberly Rosvall
Trade-offs between growth and self-maintenance are common in nature, such that early-life effects on growth can generate lasting consequences on survival and longevity. Telomeres – putative biomarkers of self-maintenance – may link early growth with these later phenotypic effects, but evidence for growth-telomere trade-offs is mixed. Null or even positive relationships between growth and telomeres may be driven by heterogeneity in resource availability or invariable allocation towards telomere maintenance within a population. We used nestling...

Data from: What makes a multimodal signal attractive? A preference function approach

Kelly L. Ronald, Ruiyu Zeng, David J. White, Esteban Fernández-Juricic & Jeffrey R. Lucas
Courtship signals are often complex and include components within and across sensory modalities. Unfortunately, the evidence for how multimodal signals affect female preference functions is still rather limited. This is an important scientific gap because preference function shape can indicate which male traits are under the strongest selection. We modelled how preference function shape can be altered under 4 scenarios of varying signal content, including both redundant and non-redundant signals. The model was tested with...

Data from: Shaping communicative colour signals over evolutionary time

Alison G. Ossip-Drahos, José R. Oyola Morales, Cuauhcihuatl Vital-Garcia, José Jaime Zúñiga-Vega, Diana K. Hews & Emilia P. Martins
Many evolutionary forces can shape the evolution of communicative signals, and the long-term impact of each force may depend on relative timing and magnitude. We use a phylogenetic analysis to infer the history of blue belly patches of Sceloporus lizards, and a detailed spectrophotometric analysis of four species to explore the specific forces shaping evolutionary change. We find that the ancestor of Sceloporus had blue patches. We then focus on four species; the first evolutionary...

Data from: Rapid evolution rescues hosts from competition and disease but—despite a dilution effect—increases the density of infected hosts

Alexander T. Strauss, Jessica L. Hite, Marta S. Shocket, Carla E. Cáceres, Meghan A. Duffy & Spencer R. Hall
Virulent parasites can depress the densities of their hosts. Taxa that reduce disease via dilution effects might alleviate this burden. However, ‘diluter’ taxa can also depress host densities through competition for shared resources. The combination of disease and interspecific competition could even drive hosts extinct. Then again, genetically variable host populations can evolve in response to both competitors and parasites. Can rapid evolution rescue host density from the harm caused by these ecological enemies? How...

Data from: Connecting the sun to flowering in sunflower adaptation

Benjamin K Blackman, Scott D Michaels & Loren H Rieseberg
Species living in seasonal environments often adaptively time their reproduction in response to photoperiod cues. We characterized the expression of genes in the flowering-time regulatory network across wild populations of the common sunflower, Helianthus annuus, that we found to be adaptively differentiated for photoperiod response. The observed clinal variation was associated with changes at multiple hierarchical levels in multiple pathways. Paralog-specific changes in FT homolog expression and tissue-specific changes in SOC1 homolog expression were associated...

Conflicting signal in transcriptomic markers leads to a poorly resolved backbone phylogeny of Chalcidoid wasps

Junxia Zhang, Amelia R.I. Lindsey, Ralph S. Peters, John M. Heraty, Keith R. Hopper, John H. Werren, Ellen O. Martinson, James B. Woolley, Matt J. Yoder & Lars Krogmann
Chalcidoidea (Hymenoptera) are a megadiverse superfamily of wasps with astounding variation in both morphology and biology. Most species are parasitoids and important natural enemies of insects in terrestrial ecosystems. In this study, we explored a transcriptome-based phylogeny of Chalcidoidea and found that poorly resolved relationships could only be marginally improved by adding more genes (a total of 5,591) and taxa (a total of 65), proof-checking for errors of homology and contamination, and decreasing missing data....

Novel plant-microbe interactions: rapid evolution of a legume-rhizobium mutualism in restored prairies

Susan Magnoli & Jennifer Lau
1. When plants colonize new habitats, the novel interactions they form with new mutualists or enemies can immediately affect plant performance. These novel interactions also may provoke rapid evolutionary responses and can be ideal scenarios for investigating how species interactions influence plant evolution. 2. To explore how mutualists influence the evolution of colonizing plant populations, we capitalized on an experiment in which two former agricultural fields were seeded with identical prairie seed mixes in 2010....

Registration Year

  • 2022
  • 2021
  • 2020
  • 2019
  • 2018
  • 2017
  • 2016
  • 2015
  • 2014
  • 2012

Resource Types

  • Dataset


  • Indiana University
  • Indiana University Bloomington
  • Stanford University
  • University of Michigan-Ann Arbor
  • University of Georgia
  • University of Minnesota
  • University of Melbourne
  • Indiana State University
  • Texas A&M University
  • Purdue University