Theory predicts that costly sexual traits should be reduced when individuals are in poor
condition (ie traits should exhibit condition‐dependent expression). It is therefore widely …

There is mounting evidence that obesity has negative repercussions for reproductive
physiology in males. Much of this evidence has accumulated from rodent studies employing …

Individuals within populations vary enormously in mortality risk and longevity, but the causes
of this variation remain poorly understood. A potentially important and phylogenetically …

Background Male reproduction is impacted by both over-and under-nutrition, demonstrated
by animal studies using high-fat and low-protein dietary interventions. Little is known about …

It is now recognized that post-copulatory traits, such as sperm and ejaculate production can
impose metabolic costs, and such traits are therefore expected to exhibit condition …

Nutrient availability has been shown to influence investment in many fitness‐related traits,
including male reproductive success. Many studies have demonstrated that a reduction in …

Diet significantly affects reproductive outcomes across species, yet the precise effects of
macronutrient compositions beyond caloric intake on reproductive aging are understudied …

Dietary protein is a key regulator of reproductive effort in animals, but protein consumption
also tends to accelerate senescence and reduce longevity. Given this protein-mediated …

Frequent mating can deplete sperm and seminal fluid, limiting male ability to sire offspring.
Frequent mating could also deplete non-genetic ejaculate components that affect offspring …

Frequent mating can deplete ejaculate components, limiting male fecundity. The ejaculate
can also contain molecular signals that mediate non-genetic paternal effects, raising the …