2 Works

Data from: Hidden survival heterogeneity of three common eider populations in response to climate fluctuations

Loreleï Guéry, Sébastien Descamps, Roger Pradel, Sveinn Are Hanssen, Kjell Einar Erikstad, Geir W. Gabrielsen, H. Grant Gilchrist & Joël Bêty
(1) Understanding how individuals and populations respond to fluctuations in climatic conditions is critical to explain and anticipate changes in ecological systems. Most such studies focus on climate impacts on single populations without considering inter- and intra-population heterogeneity. However, comparing geographically dispersed populations limits the risk of faulty generalizations and helps to improve ecological and demographic models. (2) We aimed to determine whether differences in migration tactics among and within populations would induce inter- or...

Data from: Origins of the Greenland shark (Somniosus microcephalus): impacts of ice-olation and introgression

Ryan P. Walter, Denis Roy, Nigel E. Hussey, Björn Stelbrink, Kit M. Kovacs, Christian Lydersen, Bailey C. McMeans, Jörundur Svavarsson, Steven T. Kessel, Sebastian Biton Porsmoguer, Sharon Wildes, Cindy A. Tribuzio, Steven E. Campana, Stephen D. Petersen, R. Dean Grubbs, Daniel D. Heath, Kevin J. Hedges & Aaron T. Fisk
Herein, we use genetic data from 277 sleeper sharks to perform coalescent-based modeling to test the hypothesis of early Quaternary emergence of the Greenland shark (Somniosus microcephalus) from ancestral sleeper sharks in the Canadian Arctic-Subarctic region. Our results show that morphologically cryptic somniosids S. microcephalus and Somniosus pacificus can be genetically distinguished using combined mitochondrial and nuclear DNA markers. Our data confirm the presence of genetically admixed individuals in the Canadian Arctic and sub-Arctic, and...

Registration Year

  • 2017
    2

Resource Types

  • Dataset
    2

Affiliations

  • Norwegian Polar Institute
    2
  • Université Paul-Valéry Montpellier
    1
  • University of Iceland
    1
  • University of Windsor
    1
  • Environment Canada
    1
  • Marine Research Institute
    1
  • University of Connecticut
    1
  • French National Centre for Scientific Research
    1
  • Fisheries and Oceans Canada
    1
  • University of Giessen
    1