65 Works

Data from: Continental-level population differentiation and environmental adaptation in the mushroom Suillus brevipes

Sara Branco, Ke Bi, Hui-Ling Liao, Pierre Gladieux, Helene Badouin, Chris E. Ellison, Nhu H. Nguyen, Rytas Vilgalys, Kabir G. Peay, John W. Taylor, Thomas D. Bruns & Christopher E. Ellison
Recent advancements in sequencing technology allowed researchers to better address the patterns and mechanisms involved in microbial environmental adaptation at large spatial scales. Here we investigated the genomic basis of adaptation to climate at the continental scale in Suillus brevipes, an ectomycorrhizal fungus symbiotically associated with the roots of pine trees. We used genomic data from 55 individuals in seven locations across North America to perform genome scans to detect signatures of positive selection and...

Data from: Host stress hormones alter vector feeding preferences, success, and productivity

Stephanie S. Gervasi, Nathan Burkett-Cadena, Sarah C. Burgan, Aaron W. Schrey, Hassan K. Hassan, Thomas R. Unnasch & Lynn B. Martin
Stress hormones might represent a key link between individual-level infection outcome, population-level parasite transmission, and zoonotic disease risk. Although the effects of stress on immunity are well known, stress hormones could also affect host–vector interactions via modification of host behaviours or vector-feeding patterns and subsequent reproductive success. Here, we experimentally manipulated songbird stress hormones and examined subsequent feeding preferences, feeding success, and productivity of mosquito vectors in addition to defensive behaviours of hosts. Despite being...

Data from: Stimulation of the salicylic acid pathway aboveground recruits entomopathogenic nematodes belowground

Camila Cramer Filgueiras, Denis S. Willett, Alcides Moino, Martin Pareja, Fahiem El Borai, Donald W. Dickson, Lukasz L. Stelinski, Larry W. Duncan & Alcides Moino Junior
Plant defense pathways play a critical role in mediating tritrophic interactions between plants, herbivores, and natural enemies. While the impact of plant defense pathway stimulation on natural enemies has been extensively explored aboveground, belowground ramifications of plant defense pathway stimulation are equally important in regulating subterranean pests and still require more attention. Here we investigate the effect of aboveground stimulation of the salicylic acid pathway through foliar application of the elicitor methyl salicylate on belowground...

Data from: Evaluating citizen vs. professional data for modelling distributions of a rare squirrel

Courtney A. Tye, Robert A. McCleery, Robert J. Fletcher, Daniel U. Greene & Ryan S. Butryn
To realize the potential of citizens to contribute to conservation efforts through the acquisition of data for broad-scale species distribution models, scientists need to understand and minimize the influences of commonly observed sample selection bias on model performance. Yet evaluating these data with independent, planned surveys is rare, even though such evaluation is necessary for understanding and applying data to conservation decisions. We used the state-listed fox squirrel Sciurus niger in Florida, USA, to interpret...

Data from: Cold adaptation increases rates of nutrient flow and metabolic plasticity during cold exposure in Drosophila melanogaster

Caroline M. Williams, Marshall D. McCue, Nishanth E. Sunny, Andre Szejner-Sigal, Theodore J. Morgan, David B. Allison & Daniel A. Hahn
Metabolic flexibility is an important component of adaptation to stressful environments, including thermal stress and latitudinal adaptation. A long history of population genetic studies suggest that selection on core metabolic enzymes may shape life histories by altering metabolic flux. However, the direct relationship between selection on thermal stress hardiness and metabolic flux has not previously been tested. We investigated flexibility of nutrient catabolism during cold stress in Drosophila melanogaster artificially selected for fast or slow...

Data from: Genetic surfing, not allopatric divergence, explains spatial sorting of mitochondrial haplotypes in venomous coralsnakes

Jeffrey W. Streicher, Jay P. McEntee, Laura C. Drzich, Daren C. Card, Drew R. Schield, Utpal Smart, Christopher L. Parkinson, Tereza Jezkova, Eric N. Smith & Todd A. Castoe
Strong spatial sorting of genetic variation in contiguous populations is often explained by local adaptation or secondary contact following allopatric divergence. A third explanation, spatial sorting by stochastic effects of range expansion, has been considered less often though theoretical models suggest it should be widespread, if ephemeral. In a study designed to delimit species within a clade of venomous coralsnakes, we identified an unusual pattern within the Texas coral snake (Micrurus tener): strong spatial sorting...

Data from: The evolution of reproductive diversity in Afrobatrachia: a phylogenetic comparative analysis of an extensive radiation of African frogs

Daniel M. Portik & David C. Blackburn
The reproductive modes of anurans (frogs and toads) are the most diverse of terrestrial vertebrates, and a major challenge is identifying selective factors that promote the evolution or retention of reproductive modes across clades. Terrestrialized anuran breeding strategies have evolved repeatedly from the plesiomorphic fully aquatic reproductive mode, a process thought to occur through intermediate reproductive stages. Several selective forces have been proposed for the evolution of terrestrialized reproductive traits, but factors such as water...

Data from: Changing light conditions in pine rockland habitats affect the intensity and outcome of ant–plant interactions

Ian M. Jones, Suzanne Koptur, Hilma R. Gallegos, Joseph P. Tardanico, Patricia A. Trainer & Jorge Peña
Extrafloral nectar (EFN) mediates food-for-protection mutualisms between plants and ants. Such mutualisms exist within a complex web of biotic interactions, and in a framework provided by the abiotic environment. Both biotic and abiotic factors, therefore, affect the outcome of ant–plant interactions. We conducted an experiment to determine the effects of ant activity, and light intensity, on herbivory rates, growth, and reproductive fitness in Senna mexicana var. chapmanii, a perennial legume native to pine rockland habitats...

Data from: The mutational structure of metabolism in Caenorhabditis elegans

Sarah K. Davies, Armand Leroi, Austin Burt, Jacob G. Bundy & Charles F. Baer
A properly functioning organism must maintain metabolic homeostasis. Deleterious mutations degrade organismal function, presumably at least in part via effects on metabolic function. Here we present an initial investigation into the mutational structure of the Caenorhabditis elegans metabolome by means of a mutation accumulation experiment. We find that pool sizes of 29 metabolites vary greatly in their vulnerability to mutation, both in terms of the rate of accumulation of genetic variance (the mutational variance, VM)...

Data from: Taxonomic and phylogenetic determinants of functional composition of Bolivian bat assemblages

Luis F. Aguirre, Flavia A. Montaño-Centellas, M. Mercedes Gavilanez, Richard D. Stevens, Luis Acosta, Marcos F. Terán, M. Gabriela Flores-Saldaña & Aideé Vargas
Understanding diversity patterns and the potential mechanisms driving them is a fundamental goal in ecology. Examination of different dimensions of biodiversity can provide insights into the relative importance of different processes acting upon biotas to shape communities. Unfortunately, patterns of diversity are still poorly understood in hyper-diverse tropical countries. Here, we assess spatial variation of taxonomic, functional and phylogenetic diversity of bat assemblages in one of the least studied Neotropical countries, Bolivia, and determine whether...

Data from: The rules for symbiont community assembly change along a mutualism-parasitism continuum

James Skelton, Sam Doak, Meredith Leonard, Robert P. Creed & Bryan L. Brown
Symbiont community assembly is driven by host-symbiont and symbiont-symbiont interactions.The effects that symbionts exert on their hosts are often context-dependent and existing theoretical frameworks of symbiont community assembly do not consider the implications of variable outcomes to assembly processes. We hypothesized that symbiont-symbiont interactions become increasingly important along a parasitism/mutualism continuum because; a) negative outcomes favor host resistance which in turn reduces symbiont colonization and subsequently reduce symbiont-symbiont interactions, whereas b) positive host outcomes favor...

Data from: Population characteristics, mechanisms of primary care and premature mortality in England: a cross-sectional study

Richard Baker, Kate Honeyford, Louis S. Levene, , David R. Jones, M. John Bankart & Tim Stokes
Objectives. Health systems with strong primary care tend to have better population outcomes, but in many countries demand for care is growing. We sought to identify mechanisms of primary care that influence premature mortality. Design. We developed a conceptual model of the mechanisms by which primary care influences premature mortality, and undertook a cross-sectional study in which population and primary care variables reflecting the model were used to explain variations in mortality under aged 75...

Data from: Resilience of tropical dry forests – a meta-analysis of changes in species diversity and composition during secondary succession

Géraldine Derroire, Patricia Balvanera, Carolina Castellanos-Castro, Guillaume Decocq, Deborah K. Kennard, Edwin Lebrija-Trejos, Jorge A. Leiva, Per-Christer Odén, Jennifer S. Powers, Víctor Rico-Gray, Mulualem Tigabu & John R. Healey
Assessing the recovery of species diversity and composition after major disturbance is key to understanding the resilience of tropical forests through successional processes, and its importance for biodiversity conservation. Despite the specific abiotic environment and ecological processes of tropical dry forests, secondary succession has received less attention in this biome than others and changes in species diversity and composition have never been synthesised in a systematic and quantitative review. This study aims to assess in...

Data from: Opsin repertoire and expression patterns in horseshoe crabs: evidence from the genome of Limulus polyphemus (Arthropoda: Chelicerata)

Barbara-Anne Battelle, Joseph F. Ryan, Karen E. Kempler, Spencer R. Saraf, Catherine E. Marten, Wesley C. Warren, Patrick Minx, Michael J. Montague, Pamela J. Green, Skye A. Schmidt, Lucinda Fulton, Nipam H. Patel, Merideth E. Protas, Richard K. Wilson & Megan L. Porter
Horseshoe crabs are xiphosuran chelicerates, the sister group to arachnids. As such, they are important for understanding the most recent common ancestor of Euchelicerata and the evolution and diversification of Arthropoda. Limulus polyphemus is the most investigated of the four extant species of horseshoe crabs, and the structure and function of its visual system have long been a major focus of studies critical for understanding the evolution of visual systems in arthropods. Likewise, studies of...

Data from: Losing reduces maximum bite performance in house cricket contests

Catriona Condon & Simon P. Lailvaux
Whole-organism performance capacities influence male combat outcomes in many animal species. However, several species also exhibit winner and loser effects, and current theory predicts that losers are more likely to lose again due to a decrease in aggression following defeat, not because of any change in underlying maximum performance capacity. To test the effect of fight experience on performance, we measured the maximum bite force of male Acheta domesticus crickets that were pitted against size-matched...

Data from: Roads increase population growth rates of a native leaf-cutter ant in Neotropical savannahs

Ernane H. M. Vieira-Neto, Heraldo L. Vasconcelos & Emilio M. Bruna
A challenge in applied ecology is understanding the responses of native species to roads, which are ubiquitous drivers of environmental heterogeneity. While most studies highlight their negative effects, the potential for native species to increase in abundance near roads has been underappreciated, and the demographic mechanisms underlying abundance changes remain unclear. Elucidating these mechanisms requires first determining how demographic vital rates and life-history stages interact to influence population growth. One can then assess how roads...

Data from: Geosmithia associated with bark beetles and woodborers in the western USA: taxonomic diversity and vector specificity

Miroslav Kolařík, Steven J. Seybold, Ned Tisserat, Wilhelm De Beer, David M. Rizzo, Jiri Hulcr & Martin Kostovčík
Fungi in the genus Geosmithia (Ascomycota: Hypocreales) are frequent associates of bark beetles and woodborers that colonize hardwood and coniferous trees. One species, Geosmithia morbida, is an economically damaging invasive species. The authors surveyed the Geosmithia species of California and Colorado, USA, to (i) provide baseline data on taxonomy of Geosmithia and beetle vector specificity across the western USA; (ii) investigate the subcortical beetle fauna for alternative vectors of the invasive G. morbida; and (iii)...

Data from: Do thermoregulatory costs limit altitude distributions of Andean forest birds?

Gustavo A. Londono, Mark A. Chappell, Jill E. Jankowski & Scott K. Robinson
Along tropical mountains, species often occupy narrow altitude ranges. Numerous biotic and abiotic factors have been proposed as determinants of altitude occupancy. We measured several aspects of thermal physiology of 215 bird species across a 2·6-km altitude gradient in the Peruvian Andes. We predicted that highland species would show adaptation to the colder high-altitude climate and that energy costs of thermoregulation might limit upslope dispersal of lowland natives. We found reductions in thermal conductance, body...

Data from: Assessing the value of novel habitats to snail kites through foraging behavior and nest survival

Kyle E. Pias, Robert J. Fletcher & Wiley M. Kitchens
Novel ecosystems arise for a variety of reasons, most notably from the introduction of non-native species. To be successful, conservation strategies must both focus on traditional habitats and acknowledge the interplay between novel habitats and species of conservation interest. In the United States, the snail kite (Rostrhamus sociabilis plumbeus) is a federally endangered species whose population in Florida has undergone declines within the past decade. While studying the foraging behavior of breeding snail kites on...

Data from: The tale of the shrinking weapon: seasonal changes in nutrition affect weapon size and sexual dimorphism, but not contemporary evolution

Christine W. Miller, Grant C. McDonald & Allen J. Moore
Sexually selected traits are often highly variable in size within populations due to their close link with the physical condition of individuals. Nutrition has a large impact on physical condition, and thus, any seasonal changes in nutritional quality are predicted to alter the average size of sexually selected traits as well as the degree of sexual dimorphism in populations. However, although traits affected by mate choice are well studied, we have a surprising lack of...

Data from: Data sources for trait databases: comparing the phenomic content of monographs and evolutionary matrices

T. Alex Dechecchi, Paula M. Mabee, David C. Blackburn & T. Alex Dececchi
Databases of organismal traits that aggregate information from one or multiple sources can be leveraged for large-scale analyses in biology. Yet the differences among these data streams and how well they capture trait diversity have never been explored. We present the first analysis of the differences between phenotypes captured in free text of descriptive publications (‘monographs’) and those used in phylogenetic analyses (‘matrices’). We focus our analysis on osteological phenotypes of the limbs of four...

Data from:A large eagle (Aves, Accipitridae) from the early Miocene of Panama

David W. Steadman & Bruce J. MacFadden
We report the first Tertiary bird fossil from Central America, an ungual phalanx from a large, unknown genus and species of Accipitridae from the early Miocene Centenario Fauna, Panama. This specimen provides another example of a Neogene bird from North and Central America with its possible closest living relatives occurring today in Africa. In contrast, there is no evidence of African affinities among the reptile or mammal fossils from the Centenario Fauna.

Data from: Social selection parapatry in Afrotropical sunbirds

Jay P. McEntee, Joshua V. Peñalba, Chacha Werema, Elia Mulungu, Maneno Mbilinyi, David Moyer, Louis Hansen, Jon Fjeldså & Rauri C. K. Bowie
The extent of range overlap of incipient and recent species depends on the type and magnitude of phenotypic divergence that separates them, and the consequences of phenotypic divergence on their interactions. Signal divergence by social selection likely initiates many speciation events, but may yield niche-conserved lineages predisposed to limit each others’ ranges via ecological competition. Here we examine this neglected aspect of social selection speciation theory in relation to the discovery of a non-ecotonal species...

Data from: Counteracting effects of a non-native prey on demography of a native predator culminate in positive population growth

Christopher E. Cattau, , Brian E. Reichert, Wiley M. Kitchens & Robert J. Fletcher
Identifying impacts of non-native species on native populations is central to conservation and ecology. While effects of non-native predators on native prey populations have recently received much attention, impacts of introduced prey on native predator populations are less understood. Non-native prey can influence predator behavior and demography through direct and indirect pathways, yet quantitative assessments of the relative impacts of multiple, potentially counteracting, effects on native predator population growth remain scarce. Using ≈20 years of...

Data from: Disparities in influenza mortality and transmission related to sociodemographic factors within Chicago in the pandemic of 1918

Kyra H. Grantz, Madhura S. Rane, Henrik Salje, Gregory E. Glass, Stephen E. Schachterle & Derek A. T. Cummings
Social factors have been shown to create differential burden of influenza across different geographic areas. We explored the relationship between potential aggregate-level social determinants and mortality during the 1918 influenza pandemic in Chicago using a historical dataset of 7,971 influenza and pneumonia deaths. Census tract-level social factors, including rates of illiteracy, homeownership, population, and unemployment, were assessed as predictors of pandemic mortality in Chicago. Poisson models fit with generalized estimating equations (GEEs) were used to...

Registration Year

  • 2016

Resource Types

  • Dataset


  • University of Florida
  • University of California, Berkeley
  • University of California System
  • Duke University
  • United States Department of Agriculture
  • California Polytechnic State University
  • University of Kansas
  • University of Washington
  • Princeton University
  • University of Notre Dame