Sökning: "Matthew Gage"

Hittade 2 avhandlingar innehållade orden Matthew Gage.

1. 1. Sperm motility in Gasterosteiform fishes : The role of salinity and ovarian fluid

   Författare :Helena Elofsson; Bertil Borg; Matthew Gage; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Biologi;

   Sammanfattning : In externally fertilising fishes, various factors in the surrounding environment may influence the viability of the sperm and eggs, thus determining the success of reproduction. In this thesis, the influence of salinity and ovarian fluid on sperm motility has been investigated in three Gasterosteiform fishes. LÄS MER

3. 2. Pre- and post-copulatory sexual selection in the fowl, Gallus gallus

   Författare :Hanne Løvlie; Sven Jakobsson; Tommaso Pizzari; Matthew J. G. Gage; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; cryptic female choice; Gallus; inbreeding avoidance; mate choice; sexual conflict; sexual selection; sperm competition; Ethology and behavioural ecology; Etologi och beteendeekologi; etologi; Ethology;

   Sammanfattning : The evolutionary goal of individuals is reproduction and sexual selection favours traits improving reproductive success. When males invest less than females in offspring, males have potentially a higher reproductive rate than females. LÄS MER