2 Works

Data from: Consequences of sibling rivalry vary across life in a passerine bird

Kat Bebbington, Sjouke Anne Kingma, Eleanor A. Fairfield, Lewis G. Spurgin, Jan Komdeur & David S. Richardson
Many studies have assessed the costs of sibling rivalry in systems where offspring always have competitors, but conclusions about sibling rivalry in these species are restricted to interpreting the cost of changes in the relative level of competition and are often complicated by the expression of potentially costly rivalry related traits. Additionally, the majority of studies focus on early-life sibling rivalry, but the costs of competition can also affect later-life performance. We test a suite...

Data from: Post-copulatory opportunities for sperm competition and cryptic female choice provide no offspring fitness benefits in externally fertilizing salmon

Alyson J. Lumley, Sian E. Diamond, Sigurd Einum, Sarah E. Yeates, Danielle Peruffo, Brent C. Emerson & Matthew JG Gage
There is increasing evidence that females can somehow improve their offspring fitness by mating with multiple males, but we understand little about the exact stage(s) at which such benefits are gained. Here, we measure whether offspring fitness is influenced by mechanisms operating solely between sperm and egg. Using externally fertilizing and polyandrous Atlantic salmon (Salmo salar), we employed split-clutch and split-ejaculate in vitro fertilization experiments to generate offspring using designs that either denied or applied...

Registration Year

  • 2016
    2

Resource Types

  • Dataset
    2

Affiliations

  • Norwich Research Park
    2
  • University of Groningen
    1
  • University of East Anglia
    1
  • Norwegian University of Science and Technology
    1