2 Works

Data from: Breeding system, shell size and age at sexual maturity affect sperm length in stylommatophoran gastropods

Dénes Schmera, Julia Pizá, Ellen Reinartz, Sylvain Ursenbacher & Bruno Baur
Background: Sperm size and quality are key factors for fertilization success. There is increasing empirical evidence demonstrating that sperm form and function are influenced by selective pressures. Theoretical models predict that sperm competition could favour the evolution of longer sperm. In hermaphrodites, self-fertilizing species are expected to have shorter sperm than cross-fertilizing species, which use sperm stored from several mating partners for the fertilization of their eggs and thus are exposed to intense sperm competition....

Data from: Demographic history inferred from genome-wide data reveals two lineages of sheldgeese endemic to a glacial refugium in the southern Atlantic

Cecilia Kopuchian, Leonardo Campagna, Adrián S. Di Giacomo, Robert E. Wilson, Mariana Bulgarella, Pablo Petracci, Juan Mazar Barnett, Ricardo Matus, Olivia Blank & Kevin G. McCracken
Aim: The Malvinas/Falkland Islands (MFI) constitute the largest archipelago in the southern Atlantic, and harbour endemic lineages that presumably evolved after sea-level rise, associated with glacial periods, isolated ancestral populations. We investigate the role of the MFI in isolating populations from continental counterparts of two highly vagile species: the sheldgeese Chloephaga picta and Chloephaga rubidiceps. Location: Patagonia and the Malvinas/Falkland Islands. Methods: We sampled C. picta and C. rubidiceps on the continent and MFI. Using...

Registration Year

  • 2016
    2

Resource Types

  • Dataset
    2

Affiliations

  • Universidad Nacional del Sur
    2
  • University of Minnesota
    1
  • University of Alaska Fairbanks
    1
  • University of Miami
    1
  • University of Basel
    1
  • National Scientific and Technical Research Council
    1
  • Cornell University
    1