The extent to which the age of parents at reproduction can affect offspring lifespan and other
fitness-related traits is important in our understanding of the selective forces sha** life …

The idea that there is an impenetrable barrier that separates the germline and soma has
shaped much thinking in evolutionary biology and in many other disciplines. However …

Male reproductive traits such as ejaculate size and quality, are expected to decline with
advancing age due to senescence. It is however unclear whether this expectation is upheld …

When males compete, sexual selection favors reproductive traits that increase their mating
or fertilization success (pre-and postcopulatory sexual selection). It is assumed that males …

Male mate choice occurs in several animal species, but we know little about the factors that
influence the expression of this behaviour. Males vary in their capacity to acquire mates (ie …

Ageing and sexual selection are intimately linked. There is by now compelling evidence
from studies performed across diverse organisms that males allocating resources to mating …

Reproductive ageing can occur due to the deterioration of both the soma and germline. In
males, it has mostly been studied with respect to age-related changes in sperm. However …

Variation in sperm traits is widely documented both at inter-and intraspecific level. However,
sperm traits vary also between ejaculates of the same male, due for example, to fluctuations …

Sperm ageing after ejaculation can generate paternal environment effects that impact
offspring fitness. In many species, female reproductive fluids (FRFs), ie ancillary fluids …

Although it is widely stated that both mating behavior and sperm traits are energetically
costly for males, we currently lack empirical estimates of the relative costs to males of pre …