12 Works

Data from: Egg size and the adaptive capacity of early life history traits in Chinook salmon (Oncorhynchus tshawytscha)

Michael W. Thorn & Yolanda E. Morbey
Offspring traits are greatly influenced by maternal effects and these maternal effects may provide an important pathway through which populations can adapt to changing thermal environments. We investigated the effect of egg size on the among and within population variation in early life history traits among introduced Great Lakes Chinook salmon (Oncorhynchus tshawytscha) populations under varying thermal conditions. We reared Chinook salmon from three populations in a common garden hatchery study at 6.5°C, 9.4°C, and...

Data from: Birdsong signals individual diversity at the major histocompatibility complex

Joel W.G. Slade, Matthew J. Watson, Elizabeth A. MacDougall-Shackleton & J. W. G. Slade
The major histocompatibility complex (MHC) plays a key role in vertebrate immunity, and pathogen-mediated selection often favours certain allelic combinations. Assessing potential mates' MHC profiles may provide receivers with genetic benefits (identifying MHC-compatible mates and producing optimally diverse offspring) and/or material benefits (identifying optimally diverse mates capable of high parental investment). Oscine songbirds learn songs during early life, such that song repertoire content can reflect population of origin while song complexity can reflect early life...

Data from: Livestock abundance predicts vampire bat demography, immune profiles, and bacterial infection risk

Daniel J. Becker, Gábor Á. Czirják, Dmitriy V. Volokhov, Alexandra B. Bentz, Jorge E. Carrera, Melinda S. Camus, Kristen J. Navara, Vladimir E. Chizhikov, M. Brock Fenton, Nancy B. Simmons, Sergio E. Recuenco, Amy T. Gilbert, Sonia Altizer & Daniel G. Streicker
Human activities create novel food resources that can alter wildlife–pathogen interactions. If resources amplify or dampen pathogen transmission likely depends on both host ecology and pathogen biology, but studies that measure responses to provisioning across both scales are rare. We tested these relationships with a four-year study of 369 common vampire bats across ten sites in Peru and Belize that differ in the abundance of livestock, an important anthropogenic food source. We quantified innate and...

Data from: Evaluation of sex differences in the stopover behavior and postdeparture movements of wood-warblers

Yolanda E. Morbey, Christopher G. Guglielmo, Philip D. Taylor, Ivan Maggini, Jessica Deakin, Stuart A. Mackenzie, J. Morgan Brown & Lin Zhao
Sex differences in the behaviors underlying avian protandry, where males arrive at breeding areas earlier than females, are still poorly understood for most species. We tested for sex differences in stopover behavior, refueling rates, and post-departure movements during spring migration in two consecutive years in wood-warblers (Parulidae) at a coastal site on Lake Erie, Ontario, using automated radio telemetry (black-throated blue warblers Setophaga caerulescens and magnolia warblers S. magnolia) and analysis of plasma metabolites as...

Data from: Too important to tamper with: predation risk affects body mass and escape behaviour but not escape ability

Benjamin T. Walters, Tin Nok Natalie Cheng, Justin Doyle, Christopher G. Guglielmo, Michael Clinchy, Liana Y. Zanette & Chistopher G. Guglielmo
1. Escaping from a predator is a matter of life or death, and prey are expected to adaptively alter their physiology under chronic predation risk in ways that may affect escape. Theoretical models assume that escape performance is mass-dependent whereby scared prey strategically maintain an optimal body mass to enhance escape. Experiments testing the mass-dependent predation risk (MDPR) hypothesis have demonstrated that prior experience of predation risk can affect body mass, and the behavioural decisions...

Data from: CRISPR-induced null alleles show that Frost protects Drosophila melanogaster reproduction after cold exposure

Claire E. Newman, Jantina Toxopeus, Hiroko Udaka, Soohyun Ahn, David M. Martynowicz, Steffen P. Graether, Brent J. Sinclair & Anthony Percival-Smith
The ability to survive and reproduce after cold exposure is important in all kingdoms of life. However, even in a sophisticated genetic model system like Drosophila melanogaster, few genes have been identified as functioning in cold tolerance. The accumulation of the Frost (Fst) gene transcript increases after cold exposure, making it a good candidate for a gene that has a role in cold tolerance. However, despite extensive RNAi knockdown analysis, no role in cold tolerance...

Data from: An increase in immature β-cells lacking Glut2 precedes the expansion of β-cell mass in the pregnant mouse

Christine A. Beamish, Linhao Zhang, Sandra K. Szlapinski, Brenda J. Strutt & David J. Hill
A compensatory increase in β-cell mass occurs during pregnancy to counter the associated insulin resistance, and a failure in adaptation is thought to contribute to gestational diabetes. Insulin-expressing but glucose-transporter-2-low (Ins+Glut2LO) progenitor cells are present in mouse and human pancreas, being predominantly located in extra-islet β-cell clusters, and contribute to the regeneration of the endocrine pancreas following induced ablation. We therefore sought to investigate the contribution of Ins+Glut2LO cells to β-cell mass expansion during pregnancy....

Data from: Prophage as a genetic reservoir: Promoting diversity and driving innovation in the host community

Alina Nadeem & Lindi M. Wahl
Sequencing of bacterial genomes has revealed an abundance of prophage sequences in many bacterial species. Since these sequences are accessible, through recombination, to infecting phages, bacteria carry an arsenal of genetic material that can be used by these viruses. We develop a mathematical model to isolate the effects of this phenomenon on the coevolution of temperate phage and bacteria. The model predicts that prophage sequences may play a key role in maintaining the phage population...

Data from: Fear of the human ‘super predator’ reduces feeding time in large carnivores

Justine A. Smith, Justin P. Suraci, Michael Clinchy, Ayana Crawford, Devin Roberts, Liana Y. Zanette & Christopher C. Wilmers
Large carnivores' fear of the human ‘super predator’ has the potential to alter their feeding behaviour and result in human-induced trophic cascades. However, it has yet to be experimentally tested if large carnivores perceive humans as predators and react strongly enough to have cascading effects on their prey. We conducted a predator playback experiment exposing pumas to predator (human) and non-predator control (frog) sounds at puma feeding sites to measure immediate fear responses to humans...

Data from: Wintering areas predict age-related breeding phenology in a migratory passerine bird

Cosme López-Calderón, Keith A. Hobson, Alfonso Marzal, Javier Balbontín, Marivel Reviriego, Sergio Magallanes, Luz García-Longoria, Florentino De Lope & Anders P. Møller
Understanding connections between breeding, stopover and wintering grounds for long-distance migratory birds can provide important insight into factors influencing demography and the strength of carry-over effects among various periods of the annual cycle. Using previously described, multi-isotope (δ13C, δ15N, δ2H) feather isoscapes for Africa, we identified the most probable wintering areas for house martins (Delichon urbica) breeding at Badajoz in southwestern Spain. We identified two most-probable wintering areas differing in latitude in West Africa. We...

Data from: What can we learn about beat perception by comparing brain signals and stimulus envelopes?

Molly J. Henry, Bjorn Herrmann & Jessica A. Grahn
Entrainment of neural oscillations on multiple time scales is important for the perception of speech. Musical rhythms, and in particular the perception of a regular beat in musical rhythms, is also likely to rely on entrainment of neural oscillations. One recently proposed approach to studying beat perception in the context of neural entrainment and resonance (the “frequency-tagging” approach) has received an enthusiastic response from the scientific community. A specific version of the approach involves comparing...

Data from: Modulation of social space by dopamine in Drosophila melanogaster, but no effect on the avoidance of the Drosophila stress odorant

Robert W. Fernandez, Adesanya A. Akinleye, Marat Nurilov, Omar Feliciano, Matthew Lollar, Rami R. Aijuri, Janis M. O'Donnell & Anne F. Simon
Appropriate response to others is necessary for social interactions. Yet little is known about how neurotransmitters regulate attractive and repulsive social cues. Using genetic and pharmacological manipulations in Drosophila melanogaster, we show that dopamine is contributing the response to others in a social group, specifically, social spacing, but not the avoidance of odours released by stressed flies (dSO). Interestingly, this dopamine-mediated behaviour is prominent only in the day-time, and its effect varies depending on tissue,...

Registration Year

  • 2017
    12

Resource Types

  • Dataset
    12

Affiliations

  • Western University
    12
  • National University of San Marcos
    1
  • Acadia University
    1
  • University of Georgia
    1
  • Sichuan University
    1
  • University of Extremadura
    1
  • United States Department of Agriculture
    1
  • University of Guelph
    1
  • University of Paris-Sud
    1
  • French National Centre for Scientific Research
    1