64 Works

Natural variation for carotenoids in fresh kernels is controlled by uncommon variants in sweet corn

Matheus Baseggio, Matthew Murray, Maria Magallanes-Lundback, Nicholas Kaczmar, James Chamness, Edward Buckler, Margaret Smith, Dean DellaPenna, William Tracy & Michael Gore
Sweet corn (Zea mays L.) is highly consumed in the United States, but does not make major contributions to the daily intake of carotenoids (provitamin A carotenoids, lutein and zeaxanthin) that would help in the prevention of health complications. A genome-wide association study of seven kernel carotenoids and twelve derivative traits was conducted in a sweet corn inbred line association panel ranging from light to dark yellow in endosperm color to elucidate the genetic basis...

Consumer movement dynamics as hidden drivers of stream habitat structure: suckers as ecosystem engineers on the night shift

Michael Booth, Nelson Hairston & Alex Flecker
Ecosystem engineers engineering can control the spatial and temporal distribution of resources and movement by engineering organisms within an ecosystem can transport mobilize resources across boundaries and distribute engineering effects. Movement patterns of fishes can cause physical changes to stream aquatic habitats though nesting or feeding, both of which often vary in space and time. Here we present evidence of ecosystem engineering by the Sonora sucker (Catostomus insignis), a dominant fish in streams of the...

Data from: Increases and decreases in marine disease reports in an era of global change

Allison M. Tracy, Madeline L. Pielmeier, Reyn M. Yoshioka, Scott F. Heron & C. Drew Harvell
Outbreaks of marine infectious diseases have caused widespread mass mortalities, but the lack of baseline data has precluded evaluating whether disease is increasing or decreasing in the ocean. We use an established literature proxy method from Ward and Lafferty (2004) to analyze a 44-year global record of normalized disease reports from 1970 to 2013. Major marine hosts are combined into nine taxonomic groups, from seagrasses to marine mammals, to assess disease swings, defined as positive...

Data from: Nocturnal flight-calling behaviour predicts vulnerability to artificial light in migratory birds

Benjamin M. Winger, Brian C. Weeks, Andrew Farnsworth, Andrew W. Jones, Mary Hennen & David E. Willard
Understanding interactions between biota and the built environment is increasingly important as human modification of the landscape expands in extent and intensity. For migratory birds, collisions with lighted structures are a major cause of mortality, but the mechanisms behind these collisions are poorly understood. Using 40 years of collision records of passerine birds, we investigated the importance of species’ behavioral ecologies in predicting rates of building collisions during nocturnal migration through Chicago, IL and Cleveland,...

Data from: Agriculturally dominated landscapes reduce bee phylogenetic diversity and pollination services

Heather Grab, Michael G. Branstetter, Nolan Amon, Katherine R. Urban-Mead, Mia G. Park, Jason Gibbs, Eleanor J. Blitzer, Katja Poveda, Greg Loeb & Bryan N. Danforth
Land-use change threatens global biodiversity and may reshape the tree of life by favoring some lineages over others. Whether phylogenetic diversity loss compromises ecosystem service delivery remains unknown. We address this knowledge gap using extensive genomic, community, and crop datasets to examine relationships among land use, pollinator phylogenetic structure, and crop production. Pollinator communities in highly agricultural landscapes contain 230 million fewer years of evolutionary history; this loss was strongly associated with reduced crop yield...

Data from: Interactions among morphotype, nutrition, and temperature impact fitness of an invasive fly.

Dalila Rendon, Vaughn Walton, Gabriella Tait, Jessica Buser, Ivana Lemos Souza, Anna Wallingford, Greg Loeb & Jana Lee
Invasive animals depend on finding a balanced nutritional intake to colonize, survive, and reproduce in new environments. This can be especially challenging during situations of fluctuating cold temperatures and food scarcity, but phenotypic plasticity may offer an adaptive advantage during these periods. We examined how lifespan, fecundity, pre-oviposition periods, and body nutrient contents were affected by dietary protein and carbohydrate (P:C) ratios at variable low temperatures in two morphs (winter morphs WM and summer morphs...

Data from: Time of emergence of novel climates for North American migratory bird populations

Frank A. La Sorte, Daniel Fink & Alison Johnston
To better understand the ecological implications of global climate change for species that display geographically and seasonally dynamic life-history strategies, we need to determine where and when novel climates are projected to first emerge. Here, we use a multivariate approach to estimate time of emergence (ToE) of novel climates based on three climate variables (precipitation, minimum and maximum temperature) at a weekly temporal resolution within the Western Hemisphere over a 280-year period (2021-2300) under a...

Data from: Bee pathogen transmission dynamics: deposition, persistence and acquisition on flowers

Laura L. Figueroa, Malcolm Blinder, Cali Grincavitch, Angus Jelinek, Emilia K. Mann, Liam A. Merva, Lucy E. Metz, Amy Y. Zhao, Rebecca E. Irwin, Scott H. McArt & Lynn S. Adler
Infectious diseases are a primary driver of bee decline worldwide, but limited understanding of how pathogens are transmitted hampers effective management. Flowers have been implicated as hubs of bee disease transmission, but we know little about how interspecific floral variation affects transmission dynamics. Using bumble bees (Bombus impatiens), a trypanosomatid pathogen (Crithidia bombi), and three plant species varying in floral morphology, we assessed how host infection and plant species affect pathogen deposition on flowers, and...

Data from: Integrated metabolic strategy: a framework for predicting the evolution of carbon-water tradeoffs within plant clades

Ellie M. Goud, Jed P. Sparks, Mark Fishbein & Anurag A. Agrawal
1. The fundamental tradeoff between carbon gain and water loss has long been predicted as an evolutionary driver of plant strategies across environments. Nonetheless, challenges in measuring carbon gain and water loss in ways that integrate over leaf lifetime have limited our understanding of the variation in and mechanistic bases of this tradeoff. Furthermore, the microevolution of plant traits within species versus the macroevolution of strategies among closely related species may not be same, and...

Maltreatment and the Academic and Social Adjustment of School Children, 1987-1988

John Eckenrode & John Doris
This study examined the effects of child abuse and neglect on academic achievement and social adjustment in the school setting. The data were derived from a population of 8600 children attending public schools (grades K to 12) in a small city in New York State between 1987 and 1988. From this population of children, 1239 were found to have been substantiated victims of abuse or neglect on at least one occasion. A stratified sampling procedure...

Data from: Accounting for interspecific competition and age structure in demographic analyses of density dependence improves predictions of fluctuations in population size

Marlène Gamelon, Stefan J.G. Vriend, Steinar Engen, Frank Adriaensen, Andre A. Dhondt, Simon R. Evans, Erik Matthysen, Ben C. Sheldon & Bernt-Erik Sæther
Understanding species coexistence has long been a major goal of ecology. Coexistence theory for two competing species posits that intraspecific density dependence should be stronger than interspecific density dependence. Great tits and blue tits are two bird species that compete for food resources and nesting cavities. Based on long-term monitoring of these two competing species at sites across Europe, combining observational and manipulative approaches, we show that the strength of density regulation is similar for...

Pre-Hackathon Questionnaire

Natalie Meyers, Michael Hildreth, Ted Habermann, Nancy Hoebelheinrich, Leah McEwen, Albert Mons, Erin Robinson, Erik Schultes, Shelley Stall, George Strawn, Gordon Watts, Sara Bowman, Pamfilos Fokianos, Margaret Berta, Maria Cruz, Evan Bolton, Stuart Chalk, Vincent Scalfani, Nicole Pfeiffer, Ted Habermann & Ian Bruno

Parallel evolution of ancient, pleiotropic enhancers underlies butterfly wing pattern mimicry

James Lewis, Rachel Geltman, Patrick Pollack, Kathleen Rondem, Steven Van Belleghem, Melissa Hubisz, Paul Munn, Linlin Zhang, Caleb Benson, Anyi Mazo-Vargas, Charles Danko, Brian Counterman, Riccardo Papa & Robert Reed
Color pattern mimicry in Heliconius butterflies is a classic case study of complex trait adaptation via selection on a few large effect genes. Association studies have linked color pattern variation to a handful of noncoding regions, yet the presumptive cis-regulatory elements (CREs) that control color patterning remain unknown. Here we combine chromatin assays, DNA sequence associations, and genome editing to functionally characterize 5 cis-regulatory elements of the color pattern gene optix. We were surprised to...

Warming and pollutants interact to modulate octocoral immunity and shape disease outcomes

Allison M. Tracy, Ernesto Weil & C. Drew Harvell
Warming environments can alter the outcome of host-parasite relationships with important consequences for biodiversity. Warming often increases disease risk, and interactions with other environmental factors can intensify impacts by modifying the underlying mechanisms, such as host immunity. In coastal ecosystems, metal pollution is a pervasive stressor that influences disease and immunity in many organisms. Despite the crisis facing coral reefs, which stems in part from warming-associated disease outbreaks, the impacts of metal pollutants on scleractinian...

Selling Crops Early to Pay for School: A Large-scale Natural Experiment in Malawi

Brian Dillon
PI-Provided Abstract: In 2010, primary school in Malawi began in September, three months earlier than in 2009. We show that this change forced households to sell crops early, when prices are low. The effect is limited to households with school children, increases in the number of children, and is present only for poor households. Households that financed school by selling crops early missed out on an expected 17.3-26.5% increase in output prices over three months....

TypeTE: a tool to genotype mobile element insertions from whole genome resequencing data

Clément Goubert, Jainy Thomas, Lindsay Payer, Jeffrey Kidd, Julie Feusier, W. Scott Watkins, Kathleen Burns, Lynn Jorde & Cédric Feschotte
Alu retrotransposons account for more than 10% of the human genome, and insertions of these elements create structural variants segregating in human populations. Such polymorphic Alu are powerful markers to understand population structure, and they represent variants that can greatly impact genome function, including gene expression. Accurate genotyping of Alu and other mobile elements has been challenging. Indeed, we found that Alu genotypes previously called for the 1000 Genomes Project are sometimes erroneous, which poses...

Data from: Contrasting evolutionary histories in Neotropical birds: divergence across an environmental barrier in South America

Pablo D. Lavinia, Ana S. Barreira, Leonardo Campagna, Pablo L. Tubaro & Dario A. Lijtmaer
Avian diversity in the Neotropics has been traditionally attributed to the effect of vicariant forces promoting speciation in allopatry. Recent studies have shown that phylogeographic patterns shared among co-distributed species cannot be explained by a single vicariant event, as species responses to a common barrier depend on the biological attributes of each taxon. The open vegetation corridor (OVC) isolates Amazonia and the Andean forests from the Atlantic Forest, creating a notorious pattern of avian taxa...

Data from: Achromatic plumage brightness predicts stress resilience and social interactions in tree swallows (Tachycineta bicolor)

Conor C. Taff, Cedric Zimmer & Maren N. Vitousek
Theory suggests that signal honesty may be maintained by differential costs for high and low quality individuals. For signals that mediate social interactions, costs can arise from the way that a signal changes the subsequent social environment via receiver responses. These receiver-dependent costs may be linked with individual quality through variation in resilience to environmental and social stress. Here, we imposed stressful conditions on female tree swallows (Tachycineta bicolor) by attaching groups of feathers during...

Data from: The tomato pan-genome uncovers new genes and a rare allele regulating fruit flavor

Lei Gao, Itay Gonda, Honghe Sun, Qiyue Ma, Kan Bao, Denise M. Tieman, Elizabeth A. Burzynski-Chang, Tara L. Fish, Kaitlin A. Stromberg, Gavin L. Sacks, Theodore W. Thannhauser, Majid R. Foolad, Maria Jose Diez, Joaquin Canizares, Yimin Xu, Esther Van Der Knaap, Sanwen Huang, Harry J. Klee, James J. Giovannoni & Zhangjun Fei
Modern tomatoes have narrow genetic diversity limiting their improvement potential. We present a tomato pan-genome constructed using genome sequences of 725 phylogenetically and geographically representative accessions, revealing 4,873 genes absent from the reference genome. Presence/absence variation analyses reveal substantial gene loss and intense negative selection of genes and promoters during tomato domestication and improvement. Lost or negatively selected genes are enriched for important traits, especially disease resistance. We identify a rare allele in TomLoxC promoter...

Data from: Genetics and evidence for balancing selection of a sex-linked colour polymorphism in a songbird

Kang-Wook Kim, Benjamin C. Jackson, Hanyuan Zhang, David P. L. Toews, Scott A. Taylor, Emma I. Greig, Irby J. Lovette, Mengning M. Liu, Angus Davison, Simon C. Griffith, Kai Zeng & Terry Burke
Colour polymorphisms play a key role in sexual selection and speciation, yet the mechanisms that generate and maintain them are not fully understood. Here, we use genomic and transcriptomic tools to identify the precise genetic architecture and evolutionary history of a sex-linked colour polymorphism in the Gouldian finch Erythrura gouldiae that is also accompanied by remarkable differences in behaviour and physiology. We find that differences in colour are associated with an ~72-kbp region of the...

Data from: Context-dependent induction of allelopathy in plants under competition

Akane Uesugi, Robert Johnson & Andre Kessler
Some plants use allelopathy to compete against neighbouring plants, and the ability to induce allelopathic compound production in response to competition is hypothesized to be adaptive, as plants can save costs of metabolite production in the absence of competitors. However, whether plants induce allelopathy has rarely been explored so far. We studied the inducibility of polyacetylenes—putative allelopathic compounds in Solidago altissima—in response to competition. Polyacetylenes were found in natural soil surrounding S. altissima patches within...

Data from: Survey completeness of a global citizen-science database of bird occurrence

Frank La Sorte & Marius Somveille
Measuring the completeness of survey inventories created by citizen-science initiatives can identify the strengths and shortfalls in our knowledge of where species occur geographically. Here, we use occurrence information from eBird to measure the survey completeness of the world’s birds in this database at three temporal resolutions and four spatial resolutions across the annual cycle during the period 2002 to 2018. Approximately 84% of the earth’s terrestrial surface contained bird occurrence information with the greatest...

Mental Health Service Use Of Youth Leaving Foster Care (Voyages) 2001-2003

Curtis McMillen, Lionel Scott & Wendy Fran Auslander
The study was funded to explore the changes in mental health service use as older youth leave the foster care system. The data, however, examine many parameters of the lives of older youth in the foster care system, from their perspective. Four-hundred six youth in the Missouri foster care system were interviewed in person near their 17th birthday. They were re-interviewed when possible every three months until their 19th birthday. Eighty percent of the youth...

Data from: Differences in combinatorial calls among the 3 elephant species cannot be explained by phylogeny

Michael A. Pardo, Joyce H. Poole, Angela S. Stoeger, Peter H. Wrege, Caitlin E. O'Connell-Rodwell, Udaha Kapugedara Padmalal & Shermin De Silva
Understanding why related species combine calls in different ways could provide insight into the selection pressures on the evolution of combinatorial communication. African savannah elephants (Loxodonta africana), African forest elephants (Loxodonta cyclotis), and Asian elephants (Elephas maximus) all combine broadband calls (roars, barks, and cries) and low-frequency calls (rumbles) into single utterances known as “combination calls.” We investigated whether the structure of such calls differs among species and whether any differences are better explained by...

Data from: Maternally induced intraclutch cannibalism: an adaptive response to predation risk?

Natasha Tigreros, Rachel H. Norris, Eugenia H. Wang & Jennifer S. Thaler
Theory on condition‐dependent risk‐taking indicates that when prey are in poor condition, their anti‐predator responses should be weak. However, variation in responses resulting from differences in condition is generally considered an incidental by‐product of organisms living in a heterogeneous environment. Using Leptinotarsa decemlineata beetles and stinkbug (Podisus maculiventris) predators, we hypothesised that in response to predation risk, parents improve larval nutritional condition and expression of anti‐predator responses by promoting intraclutch cannibalism. We showed that mothers...

Registration Year

  • 2019
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Affiliations

  • Cornell University
    64
  • University of Notre Dame
    3
  • Virginia Tech
    3
  • University of Michigan-Ann Arbor
    2
  • University of Michigan–Ann Arbor
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  • University of Vermont
    2
  • University of Minnesota
    2
  • United States Department of Agriculture
    2
  • American University
    2
  • Bernardino Rivadavia Natural Sciences Museum
    1