44 Works

TCCON data from Indianapolis (US), Release GGG2020.R0

L. T. Iraci, J. R. Podolske, P. W. Hillyard, C. Roehl, P. O. Wennberg, J.-F. Blavier, J. Landeros, N. Allen, D. Wunch, J. Zavaleta, E. Quigley, G. B. Osterman, E. Barrow & J. Barney
The Total Carbon Column Observing Network (TCCON) is a network of ground-based Fourier Transform Spectrometers that record direct solar absorption spectra of the atmosphere in the near-infrared. From these spectra, accurate and precise column-averaged abundances of atmospheric constituents including CO2, CH4, N2O, HF, CO, H2O, and HDO, are retrieved. This is the GGG2020 data release of observations from the TCCON station at Indianapolis, Indiana, USA

Data from: Above- and belowground drivers of intraspecific trait variability across subcontinental gradients for five ubiquitous forest plants in North America

Isabelle Aubin, Françoise Cardou, Alison Munson, Madhur Anand, André Arsenault, F. Wayne Bell, Yves Bergeron, Isabelle Boulangeat, Sylvain Delagrange, Nicole J. Fenton, Dominique Gravel, François Hébert, Jill Johnstone, S. Ellen Macdonald, Azim Mallik, Anne C.S. McIntosh, Jennie R. McLaren, Christian Messier, Dave Morris, Bill Shipley, Luc Sirois, Nelson Thiffault, Laura Boisvert-Marsh & Bright B. Kumordzi
Intraspecific trait variability (ITV) provides the material for species adaptation to environmental changes. To advance our understanding of how ITV can contribute to species adaptation to a wide range of environmental conditions, we studied five widespread understory forest species exposed to both continental-scale climate gradients, and local soil and disturbance gradients. We investigated the environmental drivers of between-site leaf and root trait variation, and tested whether higher between-site ITV was associated with increased trait sensitivity...

Evolution in response to climate in the native and introduced ranges of a globally distributed plant

Simon Innes, James Santangelo, Nicholas Kooyers, Kenneth Olsen & Marc Johnson
The extent to which species can adapt to spatiotemporal climatic variation in their native and introduced ranges remains unresolved. To address this, we examined how clines in cyanogenesis (HCN production—an antiherbivore defense associated with decreased tolerance to freezing) have shifted in response to climatic variation in space and time over a 60-year period in both the native and introduced ranges of Trifolium repens. HCN production is a polymorphic trait controlled by variation at two Mendelian...

Morphological adaptations linked to flight efficiency and aerial lifestyle determine natal dispersal distance in birds

Brian Weeks, Bruce OBrien, Jonathan Chu, Santiago Claramunt, Catherine Sheard & Joseph Tobias
Natal dispersal—the movement from birthplace to breeding location—is often considered the most significant dispersal event in an animal’s lifetime. Natal dispersal distances may be shaped by a variety of intrinsic and extrinsic factors, and remain poorly quantified in most groups, highlighting the need for indices that capture variation in dispersal among species. In birds, it is hypothesized that dispersal distance can be predicted by flight efficiency, which can be estimated using wing morphology. However, the...

Community science reveals links between migration arrival timing advance, migration distance, and wing shape

Jonathan Chu, Daniel Gillis & Shelby Riskin
Substantial global data show that many taxa are shifting their phenologies in response to climate change. For birds, migration arrival dates in breeding regions have been shifting earlier, and there is evidence that both evolutionary adaptation and behavioural flexibility influence these shifts. As more efficient flyers may be able to demonstrate more flexibility to respond to changing conditions during migratory flight, we hypothesize that differences among passerine species in flight efficiency, as reflected by morphology,...

Quantifying and comparing male harm between two Drosophila serrata lab populations

Howard Rundle, Julie Colpitts, Will M.C. Jarvis & Aneil F. Agrawal
Male harm arises when traits that increase reproductive success in competition with other males also harm females as a side-effect. The extent of harm depends on male and female phenotypes, both of which can diverge between populations. Within a population, harm is inferred when increased exposure to males reduces female fitness, but studies of the divergence of male harm rarely manipulate male exposure. Here, we quantify male harm and compare its magnitude between two lab...

Introduced populations of ragweed show as much evolutionary potential as native populations

Brechann McGoey & John Stinchcombe
Invasive species are a global economic and ecological problem. They also offer an opportunity to understand evolutionary processes in a colonizing context. The impacts of evolutionary factors, such as genetic variation, on the invasion process are increasingly appreciated, but there remain gaps in the empirical literature. The adaptive potential of populations can be quantified using genetic variance–covariance matrices (G), which encapsulate the heritable genetic variance in a population. Here, we use a multivariate Bayesian approach...

Barcoded Bulk QTL mapping reveals highly polygenic and epistatic architecture of complex traits in yeast

Alex N. Nguyen Ba, Katherine Lawrence, Artur Rego-Costa, Shreyas Gopalakrishnan, Daniel Temko, Franziska Michor & Michael Desai
Mapping the genetic basis of complex traits is critical to uncovering the biological mechanisms that underlie disease and other phenotypes. Genome-wide association studies (GWAS) in humans and quantitative trait locus (QTL) mapping in model organisms can now explain much of the observed heritability in many traits, allowing us to predict phenotype from genotype. However, constraints on power due to statistical confounders in large GWAS and smaller sample sizes in QTL studies still limit our ability...

Data from: No evidence of foliar disease impact on crop root functional strategies and soil microbial communities: What does this mean for organic coffee?

Stephanie Gagliardi, Jacques Avelino, Roberta Fulthorpe, Elias De Melo Virginio Filho & Marney Isaac
Global climate change is increasing pest and pathogen pressures on plant communities, deteriorating optimal plant functioning. In plant communities, root functional trait expression and microbial communities are important indicators of plant functioning belowground, and, when confronted with pathogens aboveground, can simultaneously reflect plant defence strategies. Yet, while research is continuing to emerge on the response of root functional traits and microbial processes to pathogens aboveground, little work has investigated these interactions in tree-crops, or the...

Data and source code from: Contingency and selection in mitochondrial genome dynamics

Christopher Nunn & Sidhartha Goyal
Eukaryotic cells contain numerous copies of mitochondrial DNA (mtDNA), allowing for the coexistence of mutant and wild-type mtDNA in individual cells. The fate of mutant mtDNA depends on their relative replicative fitness within cells and the resulting cellular fitness within populations of cells. Yet the dynamics of the generation of mutant mtDNA and features that inform their fitness remain unaddressed. Here we utilize long read single-molecule sequencing to track mtDNA mutational trajectories in Saccharomyces cerevisiae....

A new marrellomorph arthropod from southern Ontario: A rare case of soft tissue preservation on a late Ordovician open marine shelf

Joseph Moysiuk, Alejandro Izquierdo-López, George E. Kampouris & Jean-Bernard Caron
Ordovician open marine lagerstätten are relatively rare and widely dispersed, producing a patchy picture of the diversity and biogeography of non-mineralized marine organisms, and challenging our understanding of the fate of Cambrian groups. Here, for the first time, we report soft-bodied fossils, including a well-preserved marrellomorph arthropod, fragmentary carapaces, and macroalgae, from the late Ordovician (Katian) Upper Member of the Kirkfield Formation near Brechin, Ontario. The unmineralized elements and associated exceptionally preserved shelly biota were...

Ecological data for: Subsidy accessibility drives asymmetric food web responses

Marie Gutgesell, Marie Gutgesell, Bailey McMeans, Matthew Guzzo, Valesca De Groot, Aaron Fisk, Timothy Johnson & Kevin McCann
Global change is fundamentally altering flows of natural and anthropogenic subsidies across space and time. After a pointed call for research on subsidies in the 1990s, an industry of empirical work has documented the ubiquitous role subsidies play in ecosystem structure, stability and function. Here, we argue that physical constraints (e.g., water temperature) and species traits can govern a species’ accessibility to resource subsidies, which has been largely overlooked in the subsidy literature. We examined...

TCCON data from Caltech (US), Release GGG2020.R0

P. O. Wennberg, C.M. Roehl, D Wunch, J.-F. Blavier, G. C. Toon, N. T. Allen, R. Treffers & J. Laughner
The Total Carbon Column Observing Network (TCCON) is a network of ground-based Fourier Transform Spectrometers that record direct solar absorption spectra of the atmosphere in the near-infrared. From these spectra, accurate and precise column-averaged abundances of atmospheric constituents including CO2, CH4, N2O, HF, CO, H2O, and HDO, are retrieved. This is the GGG2020 data release of observations from the TCCON station at California Institute of Technology, Pasadena, California, USA

TCCON data from Four Corners (US), Release GGG2020.R0

, , B. G. Henderson, N. T. Allen, C. M. Roehl, J.-F. Blavier, S. Love & D. Wunch
The Total Carbon Column Observing Network (TCCON) is a network of ground-based Fourier Transform Spectrometers that record direct solar absorption spectra of the atmosphere in the near-infrared. From these spectra, accurate and precise column-averaged abundances of atmospheric constituents including CO2, CH4, N2O, HF, CO, H2O, and HDO, are retrieved. This is the GGG2020 data release of observations from the TCCON station at Four Corners, NM, USA

Data from: Historical mitochondrial genome introgression confounds species delimitation—evidence from phylogenetic inference in the Odorrana grahami species complex

Dongyi Wu, Zhiyong Yuan, Yang Wen, Wei Xu, Wei Gao, A. Dahn Hollis, Xiaolong Liu, Jieqiong Jin, Chuanxin Yu, Jing Che & Heng Xiao
Species delimitation is essential to informing conservation policy and understanding ecological and evolutionary processes. Most of our recent gains in knowledge on animal diversity rely on morphological characteristics and mitochondrial (mt) DNA variation. Concordant results based on both have led to an unprecedented acceleration in the identification of new species and enriched the field of taxonomy. However, discordances are also found commonly between morphological and mtDNA evidence. This confounds species delimitation, especially when gene flow...

GLOWCAD: A global database of woody tissue carbon concentrations/fractions

Mahendra Doraisami, Rosalyn Kish, Nicholas Paroshy, Grant Domke, Sean Thomas & Adam Martin
Woody tissue carbon (C) concentration is a key wood trait necessary for accurately estimating forest C stocks and fluxes, which also varies widely across species and biomes. However, coarse approximations of woody tissue C (e.g., 50%) remain commonplace in forest C estimation and reporting protocols, despite leading to substantial errors in forest C estimates. Here, we describe the Global Woody Tissue Carbon Concentration Database (GLOWCAD): a database containing 3,676 individual records of woody tissue C...

Data from: Population genomic evidence of selection on structural variants in a natural hybrid zone

Zachariah Gompert, Linyi Zhang, Samridhi Chaturvedi, Chris Nice & Lauren Lucas
Structural variants (SVs) can promote speciation by directly causing reproductive isolation or by suppressing recombination across large genomic regions. Whereas examples of each mechanism have been documented, systematic tests of the role of SVs in speciation are lacking. Here, we take advantage of long-read (Oxford nanopore) whole-genome sequencing and a hybrid zone between two Lycaeides butterfly taxa (L. melissa and Jackson Hole Lycaeides) to comprehensively evaluate genome-wide patterns of introgression for SVs and relate these...

Amazon forests capture high levels of atmospheric mercury pollution from artisanal gold mining

Jacqueline Gerson, Natalie Szponar, Arianna Agostini, Rand Alotaibi, Bridget Bergquist, Arabella Chen, Luis Fernandez, Kelsey Lansdale, Anne Lee, Maria Machicao, Melissa Marchese, Simon Topp, Claudia Vega & Emily Bernhardt
AbstractMercury emissions from artisanal and small-scale gold mining throughout the Global South exceed coal combustion as the largest global source of mercury. We examined mercury deposition and storage in an area of the Peruvian Amazon heavily impacted by artisanal gold mining. Intact forests in the Peruvian Amazon near gold mining receive extremely high inputs of mercury and experience elevated total mercury and methylmercury in the atmosphere, canopy foliage, and soils. Here we show for the...

TCCON data from Park Falls (US), Release GGG2020.R0

P. O. Wennberg, C. M. Roehl, D. Wunch, G. C. Toon, J.-F. Blavier, R. Washenfelder, G. Keppel-Aleks & N. T. Allen
The Total Carbon Column Observing Network (TCCON) is a network of ground-based Fourier Transform Spectrometers that record direct solar absorption spectra of the atmosphere in the near-infrared. From these spectra, accurate and precise column-averaged abundances of atmospheric constituents including CO2, CH4, N2O, HF, CO, H2O, and HDO, are retrieved. This is the GGG2020 data release of observations from the TCCON station at Park Falls, Wisconsin, USA

The life and times of Pteridinium simplex

Simon Darroch, Brandt Gibson, Maggie Syversen, Imran Rahman, Rachel Racicot, Frances Dunn, Susana Gutarra-Diaz, Eberhard Schindler, Achim Wehrmann & Marc Laflamme
Pteridinium simplex is an iconic erniettomorph taxon best known from late Ediacaran successions in South Australia, Russia, and Namibia. Despite nearly 100 years of study, there remain fundamental questions surrounding the paleobiology and -ecology of this organism, including it’s life position relative the sediment-water interface, and how it fed and functioned within benthic communities. Here, we combine a re-description of specimens housed at the Senckenberg Forschungsinstitut und Naturmuseum Frankfurt with field observations of fossiliferous surfaces...

Data from: The effects of phylogeny, habitat, and host characteristics on the thermal sensitivity of helminth development

Jessica Phillips, Juan Vargas Soto, Samraat Pawar, Janet Koprivnikar, Daniel Benesh & Péter Molnár
Helminth parasites are part of almost every ecosystem, with more than 300 000 species worldwide. Helminth infection dynamics are expected to be altered by climate change, but predicting future changes is difficult due to lacking thermal sensitivity data for greater than 99.9% of helminth species. Here, we compiled the largest dataset to date on helminth temperature sensitivities and used the Metabolic Theory of Ecology to estimate activation energies (AEs) for parasite developmental rates. The median...

Prevalence, severity, and risk factors of disability among adults living with HIV accessing routine outpatient HIV care in London, United Kingdom (UK): A cross-sectional self-report study

Darren Brown, Kelly O'Brien, Richard Harding, Phillip Sedgwick, Mark Nelson, Marta Boffito & Agieszka Lewko
Background The study objectives were to measure disability prevalence and severity, and examine disability risk factors, among adults living with HIV in London, United Kingdom (UK). Methods Self-reported questionnaires were administered: World Health Organization Disability Assessment Schedule 2.0 (WHODAS), HIV Disability Questionnaire (HDQ), Equality Act disability definition (EADD), and demographic questionnaire. We calculated proportion (95% Confidence Interval; CI) of “severe” and “moderate” disability measured using EADD and WHODAS scores ≥2 respectively. We measured disability severity...

Mating traits and fitness components in two breeding designs in Drosophila serrata

Julie Collet, Julie Collet & Jacqueline Sztepanacz
Misalignment between male and female interests over mating creates inter-locus sexual conflict that is known to drive the coevolution of reproductive traits. Males and females also share the majority of their genome, which may cause these traits to genetically covary between the sexes and experience intra-locus sexual conflict where beneficial alleles in one sex are costly when expressed in the other. Traits expressed during mating may uniquely be subject to both intra- and interlocus sexual...

Risks for overwintering eggs of the dragonfly Sympetrum vicinum in aquatic and terrestrial environments

Rosemary Martin & Shannon McCauley
Risk-spreading behaviour is often exhibited by animals as a response to unpredictably variable environments. Using field and laboratory studies, we tested the hypothesis that Sympetrum vicinum dragonflies spread the risks of winter environments by laying eggs across a terrestrial–aquatic gradient. Sympetrum vicinum eggs that overwintered in terrestrial and benthic-limnetic habitats had significantly higher hatching success compared with eggs that overwintered in littoral sites. Low success may have been caused by hypoxia due to excess sediment...

Invasive widow spiders perform differently at low temperatures than conspecifics from the native range

Monica A. Mowery, Susan E. Anthony, Alexandra N. Dorison, Andrew C. Mason & Maydianne C. B. Andrade
Temperature challenges are one of the leading abiotic causes of success or failure of non-native species in a novel environment, and this is particularly true for low temperatures. Establishing and reproducing in a novel thermal environment can alter survival, behaviour, and traits related to fitness. It has been proposed that plasticity or adaptation of thermal tolerance may allow an introduced species to thrive, or that successful invaders may be those with a thermal breadth in...

Registration Year

  • 2022

Resource Types

  • Dataset


  • University of Toronto
  • Jet Propulsion Laboratory, Pasadena, CA (US)
  • Harvard University, Cambridge, MA (US)
  • 7
  • California Institute of Technology, Pasadena, CA (US)
  • University of Guelph
  • Department of Physics, University of Toronto, Toronto, ON (CA)
  • Yunnan University
  • University of Michigan, Ann Arbor, MI (US)
  • Los Alamos National Laboratory, Los Alamos, NM (US)