8 Works

Data from: “Balancing” balancing selection? Assortative mating at the major histocompatibility complex despite molecular signatures of balancing selection

Joel W. G. Slade, Matthew J. Watson & Elizabeth A. MacDougall-Shackleton
In vertebrate animals, genes of the major histocompatibility complex (MHC) determine the set of pathogens to which an individual's adaptive immune system can respond. MHC genes are extraordinarily polymorphic, often showing elevated nonsynonymous relative to synonymous sequence variation and sharing presumably ancient polymorphisms between lineages. These patterns likely reflect pathogen‐mediated balancing selection, for example, rare‐allele or heterozygote advantage. Such selection is often reinforced by disassortative mating at MHC. We characterized exon 2 of MHC class...

Not a melting pot: plant species aggregate in their non-native range

Gisela C. Stotz, James F. Cahill, Jonathan A. Bennett, Cameron N. Carlyle, Edward W. Bork, Diana Askarizadeh, Sandor Bartha, Carl Beierkuhnlein, Bazartseren Boldgiv, Leslie Brown, Marcelo Cabido, Giandiego Campetella, Stefano Chelli, Ofer Cohen, Sandra Díaz, Lucas Enrico, David Ensing, Batdelger Erdenetsetseg, Alessandra Fidelis, Heath W. Garris, Hugh A.L. Henry, Anke Jentsch, Mohammad Hassan Jouri, Kadri Koorem, Peter Manning … & Lauchlan H. Fraser
Aim: Plant species continue to be moved outside of their native range by human activities. Here, we aim at determining whether, once introduced, plants assimilate into native communities, or whether they aggregate, thus forming mosaics of native- and alien-rich communities. Alien species may aggregate in their non-native range due to shared habitat preferences, such as their tendency to establish in high-biomass, species-poor areas. Location: 22 herbaceous grasslands in 14 countries, mainly in the temperate zone....

Data from: Brachiopod shell thickness links environment and evolution

Uwe Balthasar, Jisuo Jin, Linda Hints & Maggie Cusack
While it is well established that the shapes and sizes of shells are strongly phylogenetically controlled, little is known about the phylogenetic constraints on shell thickness. Yet, shell thickness is likely to be sensitive to environmental fluctuations and has the potential to illuminate environmental perturbations through deep time. Here we systematically quantify the thickness of the anterior brachiopod shell which protects the filtration chamber and is thus considered functionally homologous across higher taxa of brachiopods....

Data from: Molecular diet analysis finds an insectivorous desert bat community dominated by resource sharing despite diverse echolocation and foraging strategies

Rowena Gordon, Sally Ivens, Loren K. Ammerman, M. Brock Fenton, Joanne E. Littlefair, John M. Ratcliffe & Elizabeth L. Clare
Interspecific differences in traits can alter the relative niche use of species within the same environment. Bats provide an excellent model to study niche use because they have a wide variety of behavioural, acoustic and morphological traits that may lead to multi-species, functional groups. Predatory bats have been classified by their foraging location (edge, clutter, open space), ability to aerial hawk and/or substrate glean prey and echolocation call design and flexibility, all of which may...

Data from: Toxic diffuse isolated cerebellar edema from over-the-counter health supplements

David Dongkyung Kim, Christen L. Shoesmith & Lee-Cyn Ang
Figure e-1. Pathology images of the cerebellar biopsy sample.(Panel A) Biopsy shows cerebellar cortex with dark Purkinje neurons and Purkinje neuron dropout. There is microvacuolation of neuropil and white matter. Features are consistent with ischemic neuronal changes with surrounding edema. Luxol-fast blue/hematoxylin-eosin (Bar = 50 microns). (Panel B) Neurofilament immunohistochemistry highlights collapsed basket cells which emphasize the Purkinje neuron dropout. (Bar = 50 microns).Supplementary Figure.tifTable e-1. Labelled ingredients of each herbal or naturopathic product that...

Data from: Marking mosquitoes in their natural larval sites using 2H-enriched water: a promising approach for tracking over extended temporal and spatial scales

Roy Faiman, Adama Dao, Alpha Yaro, Moussa Diallo, Samake Djibril, Zana L. Sonogo, Yossi Ousmane, Margerie Sullivan, Laura Veru, Benjamin Krajacich, Asha Krishna, Joy Matthews, Christine France, Gabriel Hamer, Keith Hobson & Tovi Lehmann
1. Background. Tracking mosquitoes using current methods of mark-release-recapture are limited to small spatial and temporal scales exposing major gaps in understanding long-range movements and extended survival. Novel approaches to track mosquitoes may yield fresh insights into their biology which improves intervention activities to reduce disease transmission. Stable isotope enrichment of natural mosquito breeding sites allows large-scale marking of wild mosquitoes absent human handling. Mosquito larvae that develop in 2H-enriched water are expected to be...

Data from: Thermal variability and plasticity drive the outcome of a host-pathogen interaction

Laura Ferguson & Brent Sinclair
Variable, changing, climates may affect each participant in a biotic interaction differently. We explored the effects of temperature and plasticity on the outcome of a host-pathogen interaction to try to predict the outcomes of infection under fluctuating temperatures. We infected Gryllus veletis crickets with the entomopathogenic fungus Metarhizium brunneum under constant (6 °C, 12 °C, 18 °C or 25 °C) or fluctuating temperatures (6 °C to 18 °C or 6 °C to 25 °C). We...

Migration takes extra guts for juvenile songbirds: energetics and digestive physiology during the first journey

Christopher Guglielmo & Brendan McCabe
Many birds undertake long migrations when they are only a few months of age. Although they are typically of adult body size, their performance and survival are often poor compared to adults. This differential performance could be due to lack of experience, selection against poor-performing cohort members, or inherent constraints of continuing physiological and morphological maturation of juveniles. Limited evidence suggests that digestive and muscle physiology of juveniles during their first migration may differ from...

Registration Year

  • 2019
    8

Resource Types

  • Dataset
    8

Affiliations

  • Western University
    8
  • University of Camerino
    1
  • Islamic Azad University
    1
  • Plymouth University
    1
  • Sao Paulo State University
    1
  • University of Pretoria
    1
  • University of Saskatchewan
    1
  • Free University of Bozen-Bolzano
    1
  • University of Alberta
    1
  • National Institutes of Health
    1