69 Works

Within-host priority effects and epidemic timing determine outbreak severity in coinfected populations

Patrick Clay, Meghan Duffy & Volker Rudolf
Coinfections of hosts by multiple pathogen species are ubiquitous, but predicting their impact on disease remains challenging. Interactions between coinfecting pathogens within hosts can alter pathogen transmission, with the impact on transmission typically dependent on the relative arrival order of pathogens within hosts (within-host priority effects). However, it is unclear how these within-host priority effects influence multi-pathogen epidemics, particularly when the arrival order of pathogens at the host population scale varies. Here we combined models...

The soil microbial community alters patterns of selection on flowering time and fitness‐related traits in Ipomoea purpurea

Lindsay Chaney & Regina S. Baucom
Premise of the study Plant flowering time plays an important role in plant fitness and thus evolutionary processes. Soil microbial communities are diverse and have a large impact, both positive and negative, on the host plant. However, owing to few available studies, how the soil microbial community may influence the evolutionary response of plant populations is not well understood. Here we sought to uncover if below-ground microbial communities act as an agent of selection on...

Risk factors for cardiovascular disease (CVD) in adults with type 1 diabetes: findings from prospective real-life T1D exchange registry

Nicole Foster, Viral N Shah, Ryan Bailey, Mengdi Wu, Rodica Pop-Busui, Michelle Katz, Jill Crandall, Fida Bacha, Kristen Nadeau, Ingrid Libman, Paul Hiers, Kara Mizokami-Stout, Linda A DiMeglio, Jennifer Sherr, Richard Pratley, Shivani Agarwal, Janet Snell-Bergeon, Eda Cengiz, Sarit Polsky & Sanjeev N Mehta
Context Cardiovascular disease (CVD) is a major cause of mortality in adults with type 1 diabetes. Objective We prospectively evaluated CVD risk factors in a large, contemporary cohort of adults with type 1 diabetes living in the United States. Design Observational study of CVD and CVD risk factors over a median of 5.3 years. Setting The T1D Exchange clinic network. Patients Adults (age ≥18 years) with type 1 diabetes and without known CVD diagnosed before...

Speciation rate and the diversity of fishes in freshwaters and the oceans

Daniel Rabosky
Aim: The number of fish taxa that occur exclusively in marine biomes is approximately equal to the number that occur in freshwater biomes. Both the geographic area and habitable volume of the marine realm are vastly greater than for Earth's freshwater ecosystems, suggesting that the density of marine species is proportionately much lower in the oceans. Because freshwater lineages are relatively recently derived from older marine lineages, this difference in species density suggests that speciation...

Territory acquisition mediates the influence of predators and climate on juvenile red squirrel survival

Jack G Hendrix, David Fisher, April Martinig, Stan Boutin, Ben Dantzer, Jeffrey Lane & Andrew McAdam
1) Juvenile survival to first breeding is a key life history stage for all taxa. Survival through this period can be particularly challenging when it can coincide with harsh environmental conditions such as a winter climate or food scarcity, leading to highly variable cohort survival. However, the small size and dispersive nature of juveniles generally makes studying their survival more difficult. 2) In territorial species, a key life history event is the acquisition of a...

Data from: Large-bodied sabre-toothed anchovies reveal unanticipated ecological diversity in early Palaeogene teleosts

Alessio Capobianco, Hermione Beckett, Etienne Steurbaut, Philip Gingerich, Giorgio Carnevale & Matthew Friedman
Many modern groups of marine fishes first appear in the fossil record during the early Palaeogene (66–40 million years ago), including iconic predatory lineages of spiny-rayed fishes that appear to have originated in response to ecological roles left empty after the Cretaceous/Palaeogene extinction. The hypothesis of extinction-mediated ecological release likewise predicts that other fish groups have adopted novel predatory ecologies. Here we report remarkable trophic innovation in early Palaeogene clupeiforms (herrings and allies), a group...

Prehistoric baseline reveals substantial decline of oyster reef condition in a Gulf of Mexico conservation priority area

Stephen Hesterberg, Gregory Herbert, Thomas Pluckhahn, Ryan Harke, Nasser Al-Qattan, C. Trevor Duke, Evan Moore, Megan Smith, Alexander Delgado & Christina Sampson
This dataset contains oyster shell height measurements for prehistoric and modern oysters collected near Crystal River, Florida, USA. Oxygen and carbon stable isotope values for large prehistoric and modern oysters are also reported.

Data from: Detecting aquatic invasive species in bait and pond stores with targeted environmental (e) DNA high-throughput sequencing metabarcode assays: angler, retailer, and manager implications

Matt Snyder, Carol Stepien, Nathaniel Marshall, Hannah Scheppler, Christopher Black & Kevin Czajkowski
Bait and pond stores comprise potential, yet poorly understood, vectors for aquatic invasive species (AIS). We tested for AIS and illegal native species in 51 bait and 21 pond stores from the central Great Lakes (Lake Erie, Ohio and Lake St. Clair, Michigan) and the adjacent Wabash River (Indiana) using environmental DNA (eDNA) metabarcode assays of water samples and morphological identifications. Retailers were questioned about supply chains, and anglers surveyed about baitfish use and disposal....

Higher rates of liana regeneration after canopy fall drives species abundance patterns in central Amazonia

Elisangela Rocha, Juliana Schietti, Caian Gerolamo, Robyn Burnham & Anselmo Nogueira
In tropical rainforest, most vascular plants have some capacity to resprout, and lianas are often effective resprouters after canopy fall. However, the diversity of resprouting responses of liana species and the consequence for plant persistence is poorly understood. We hypothesized that variation in regeneration among liana species causes differences in liana species abundance in tropical rainforest through differential resprouting capacity, such that liana species with higher densities produce more resprouts after canopy falls. We applied...

Data-driven identification of reliable sensor species to predict regime shifts in ecological networks

Amin Ghadami, Shiyang Chen & Bogdan I. Epureanu
Signals of critical slowing down are useful for predicting impending transitions in ecosystems. However, in a system with complex interacting components not all components provide the same quality of information to detect system-wide transitions. Identifying the best indicator species in complex ecosystems is a challenging task when a model of the system is not available. In this paper, we propose a data-driven approach to rank the elements of a spatially-distributed ecosystem based on their reliability...

Spatial variation in diet-microbe associations across populations of a generalist North American carnivore

A. Shawn Colborn, Corbin C. Kuntze, Gabriel I. Gadsden & Nyeema C. Harris
1. Generalist species, by definition, exhibit variation in niche attributes that promote survival in changing environments. Increasingly, phenotypes previously associated with a species, particularly those with wide or expanding ranges, are dissolving and compelling greater emphasis on population-level characteristics. 2. In the present study, we assessed spatial variation in diet characteristics, gut microbiome, and the association between these two ecological traits across populations of coyotes (Canis latrans). We highlight the influence of the carnivore community...

Data from: The evolutionary origins of natural pedagogy: Rhesus monkeys show sustained attention following nonsocial cues versus social communicative signals

Rosemary Bettle & Alexandra Rosati
The natural pedagogy hypothesis proposes that human infants preferentially attend to communicative signals from others, facilitating rapid cultural learning. In this view, sensitivity to such signals are a uniquely human adaptation and as such nonhuman animals should not produce or utilize these communicative signals. We test these evolutionary predictions by examining sensitivity to communicative cues in 206 rhesus monkeys (Macaca mulatta) using an expectancy looking time task modeled on prior work with infants. Monkeys observed...

Elevated atmospheric concentrations of CO2 increase endogenous immune function in a specialist herbivore

Leslie Decker, Chris Jeffrey, Kaitlin Ochsenrider, Abigail Potts, Jaap De Roode, Angela Smilanich & Mark Hunter
1. Animals rely on a balance of endogenous and exogenous sources of immunity to mitigate parasite attack. Understanding how environmental context affects that balance is increasingly urgent under rapid environmental change. In herbivores, immunity is determined, in part, by phytochemistry which is plastic in response to environmental conditions. Monarch butterflies, Danaus plexippus, consistently experience infection by a virulent parasite, Ophryocystis elektroscirrha, and some medicinal milkweed (Asclepias) species, with high concentrations of toxic steroids (cardenolides), provide...

Rapid mineral precipitation during shear fracturing of carbonate-rich shale: Supporting xCT data

Anne Menefee, Bill Carey, Luke Frash, Wes Hicks & Brian Ellis
X-ray computed tomography data supporting the work presented in the manuscript "Rapid mineral precipitation during shear fracturing of carbonate-rich shales" (Journal of Geophysical Research-Solid Earth, 2020) by Anne H. Menefee, Nathan J. Welch, Luke P. Frash, Wes Hicks, J. William Carey, and Brian R. Ellis. Descriptions are provided with each sample and xCT data set but please refer to the manuscript for more detailed information on samples and scanning parameters.

Incipient speciation and secondary contact in a fossorial island endemic, the São Tomé caecilian

Kyle O'Connell, Ivan Prates, Lauren Scheinberg, Kevin Mulder & Rayna Bell
Secondary contact of lineages in the early stages of divergence can result in lineage fusion or promote reproductive isolation through reinforcement. While these processes are well studied in many taxonomic groups, we know little about their contribution to diversification of the secretive and enigmatic caecilians (Amphibia: Gymnophiona). Here, we combine genetic (mtDNA and genome-wide SNPs) and phenotypic data to investigate the divergence history of caecilians endemic to the oceanic island of São Tomé in the...

Complex ecological phenotypes on phylogenetic trees: a Markov process model for comparative analysis of multivariate count data

Michael C Grundler & Daniel Rabosky
The evolutionary dynamics of complex ecological traits – including multistate representations of diet, habitat, and behavior – remain poorly understood. Reconstructing the tempo, mode, and historical sequence of transitions involving such traits poses many challenges for comparative biologists, owing to their multidimensional nature. Continuous-time Markov chains (CTMC) are commonly used to model ecological niche evolution on phylogenetic trees but are limited by the assumption that taxa are monomorphic and that states are univariate categorical variables....

Common barriers, but temporal dissonance: genomic tests suggest ecological and paleo-landscape sieves structure a coastal riverine fish community

Andrea Thomaz & L. Lacey Knowles
Assessments of spatial and temporal congruency across taxa from genetic data provide insights into the extent to which similar processes structure communities. However, for coastal regions that are affected continuously by cyclical sea-level changes over the Pleistocene, congruent interspecific response will not only depend upon co-distributions, but also on similar dispersal histories among taxa. Here, we use SNPs to test for concordant genetic structure among four co-distributed taxa of freshwater fishes (Teleostei: Characidae) along the...

Data from: Spatial phylogenetics of the North American flora

Brent Mishler, Robert Guralnick, Pamela Soltis, Stephen Smith, Douglas Soltis, Narayani Barve, Julie Allen & Shawn Laffan
North America is a large continent with extensive climatic, geological, soil, and biological diversity. That biota is under threat from habitat destruction and climate change, making a quantitative assessment of biodiversity of critical importance. Rapid digitization of plant specimen records and accumulation of DNA sequence data enable a much-needed broad synthesis of species occurrences with phylogenetic data. Here we attempted the first such synthesis of a flora from such a large and diverse part of...

Data from: Intraguild dynamics of understudied carnivores in a human-altered landscape

Tara Easter, Paola Bouley & Neil Carter
Mesocarnivores constitute a diverse and often abundant group of species, which are increasingly occupying higher trophic levels within multi-use landscapes. Yet, we know relatively little about their interactions with each other, especially in human-altered areas. Using camera trap data collected in a forestry concession in the Greater Gorongosa ecosystem of central Mozambique, we examined the spatiotemporal relationships and potential for intraguild competition among three understudied African carnivores: African civets (Civettictis civetta), bushy-tailed mongooses (Bdeogale crassicauda),...

Data from: The global diversity and distribution of lizard clutch sizes

Shai Meiri, Luciano Avila, Aaron Bauer, David Chapple, Indraneil Das, Tiffany Doan, Paul Doughty, Ryan Ellis, Lee Grismer, Fred Kraus, Mariana Morando, Paul Oliver, Daniel Pincheira-Donoso, Marco-Antonio Ribeiro-Junior, Glenn Shea, Omar Torres-Carvajal, Alex Slavenko & Uri Roll
Aim. Clutch size is a key life-history trait. In lizards, it ranges over two orders of magnitude. The global drivers of spatial and phylogenetic variation in clutch have been extensively studied in birds, but such tests in other organisms are lacking. To test the generality of latitudinal gradients in clutch size, and their putative drivers, we present the first global-scale analysis of clutch sizes across of lizard taxa. Location, Global Time period. Recent Major taxa...

Shedding light on environmentally transmitted parasites: darker conditions within lakes promote larger epidemics

Clara Shaw, Spencer Hall, Erin Overholt, Carla Cáceres, Craig Williamson & Meghan Duffy
Parasite fitness depends on a successful journey from one host to another. For parasites that are transmitted environmentally, abiotic conditions might modulate the success of this journey. Here we evaluate how light, a key abiotic factor, influences spatiotemporal patterns of zooplankton disease where light varies seasonally, across lakes, and with depth in a lake. In an in situ experiment using those three sources of variation, we tested the sensitivity of spores of two parasites to...

Data from: Healthy cardiovascular biomarkers across the lifespan in wild-born chimpanzees (Pan troglodytes)

Megan Cole, Averill Cantwell, Joshua Rukundo, Lilly Ajarova, Sofia Fernandez-Navarro, Rebeca Atencia & Alexandra Rosati
Chimpanzees (Pan troglodytes) are a crucial model for understanding the evolution of human health and longevity. Cardiovascular disease is a major source of mortality during ageing in humans and therefore a key issue for comparative research. Current data indicate that compared to humans, chimpanzees have proatherogenic blood lipid profiles, an important risk factor for cardiovascular disease in humans. However, most work to date on chimpanzee lipids come from laboratory-living populations where lifestyles diverge from a...

Decoupling the effects of food and density on life history plasticity of wild animals using field experiments: Insights from the steward who sits in the shadow of its tail, the North American red squirrel

Ben Dantzer
Long-term studies of wild animals provide the opportunity to investigate how phenotypic plasticity is used to cope with environmental fluctuations, and how the relationships between phenotypes and fitness can be dependent upon the ecological context. Most previous studies have only investigated life history plasticity in response to changes in temperature, yet wild animals often experience multiple environmental fluctuations simultaneously. This requires field experiments to decouple which ecological factor induces plasticity in fitness-relevant traits to better...

Data from: Belowground competition favors character convergence but not character displacement in root traits

Sara Colom & Regina Baucom
1. Character displacement can play a major role in species ecology and evolution, however, research testing whether character displacement can influence the evolution of root traits in plant systems remains scarce in the literature. Here we investigated the potential that character displacement may influence the evolution of root traits using two closely related morning glory species, Ipomoea purpurea and I. hederacea. 2. We performed a field experiment where we grew the common morning glory, I....

Artificial nightlight alters the predator-prey dynamics of an apex carnivore

Mark Ditmer, David Stoner, Clinton D. Francis, Jesse Barber, James Forester, David Choate, Kirsten Ironside, Kathleen Longshore, Kent Hersey, Randy Larsen, Brock McMillan, Daniel Olson, Alyson Andreasen, Jon Beckmann, Brandon Holton, Terry Messmer & Neil Carter
Artificial nightlight is increasingly recognized as an important environmental disturbance that influences the habitats and fitness of numerous species. However, its effects on wide-ranging vertebrates and their interactions remain unclear. Light pollution has the potential to amplify land-use change, and as such, answering the question of how this sensory stimulant affects behavior and habitat use of species valued for their ecological roles and economic impacts is critical for conservation and land-use planning. Here, we combined...

Registration Year

  • 2020

Resource Types

  • Dataset


  • University of Michigan-Ann Arbor
  • University of Michigan–Ann Arbor
  • University of Nevada Reno
  • University of Minnesota
  • University of Florida
  • University of Sao Paulo
  • Emory University
  • California Polytechnic State University
  • Estación Biológica de Doñana
  • Stanford University