5 Works

Data from: Metabolic scaling of individuals vs. populations: evidence for variation in scaling exponents at different hierarchical levels

Tommy Norin & A. Kurt Gamperl
1. The power scaling of metabolic rate with body mass is fundamental to animal biology, due to the profound influence that animal size has on ecology and physiolatically with cell size or metabolic intensity between the boundaries of 0.67 and 1. Despite this tremendous interest in the value of scaling exponents, little is known about metabolic scaling within individual animals and how this relates to population-level scaling. 2. Here, we conducted a long-term study that...

Data from: Applications of random forest feature selection for fine-scale genetic population assignment

Emma V.A. Sylvester, Paul Bentzen, Ian R. Bradbury, Marie Clément, Jon Pearce, John Horne, Robert G. Beiko & Emma V. A. Sylvester
Genetic population assignment used to inform wildlife management and conservation efforts requires panels of highly informative genetic markers and sensitive assignment tests. We explored the utility of machine-learning algorithms (random forest, regularized random forest, and guided regularized random forest) compared with FST ranking for selection of single nucleotide polymorphisms (SNP) for fine-scale population assignment. We applied these methods to an unpublished SNP dataset for Atlantic salmon (Salmo salar) and a published SNP data set for...

Data from: RAD sequencing reveals genomewide divergence between independent invasions of the European green crab (Carcinus maenas) in the Northwest Atlantic

Nicholas W. Jeffery, Claudio DiBacco, Mallory Van Wyngaarden, Lorraine C. Hamilton, Ryan R. E. Stanley, Renée Bernier, Jennifer FitzGerald, K. Matheson, C. H. McKenzie, Praveen Nadukkalam Ravindran, Robert Beiko & Ian R. Bradbury
Genomic studies of invasive species can reveal both invasive pathways and functional differences underpinning patterns of colonization success. The European green crab (Carcinus maenas) was initially introduced to eastern North America nearly 200 years ago where it expanded northwards to eastern Nova Scotia. A subsequent invasion to Nova Scotia from a northern European source allowed further range expansion, providing a unique opportunity to study the invasion genomics of a species with multiple invasions. Here, we...

Data from: Historical biogeography of endemic seed plant genera in the Caribbean: did GAARlandia play a role?

Maria Esther Nieto-Blazquez, Alexandre Antonelli & Julissa Roncal
The Caribbean archipelago is a region with an extremely complex geological history and an outstanding plant diversity with high levels of endemism. The aim of this study is to better understand the historical assembly and evolution of endemic seed plant genera in the Caribbean, by first determining divergence times of endemic genera to test whether the hypothesized Greater Antilles and Aves Ridge (GAARlandia) land bridge played a role in the archipelago colonization, and second by...

Data from: Range wide parallel climate-associated genomic clines in Atlantic salmon

Nicholas W. Jeffery, Ryan R. E. Stanley, Brendan F. Wringe, Javier Guijarro-Sabaniel, Vincent Bourret, Louis Bernatchez, Paul Bentzen, Robert G. Beiko, John Gilbey, Marie Clement & Ian R. Bradbury
Clinal variation across replicated environmental gradients can reveal evidence of local adaptation, providing insight into the demographic and evolutionary processes that shape intraspecific diversity. Using 1773 genome-wide single nucleotide polymorphisms we evaluated latitudinal variation in allele frequency for 134 populations of North American and European Atlantic salmon (Salmo salar). We detected 84 (4.74%) and 195 (11%) loci showing clinal patterns in North America and Europe respectively, with 12 clinal loci in common between continents. Clinal...

Registration Year

  • 2017

Resource Types

  • Dataset


  • Memorial University of Newfoundland
  • Dalhousie University
  • Fisheries and Oceans Canada
  • Bedford Institute of Oceanography
  • Marine Scotland