In species with separate sexes, females and males often differ in their morphology,
physiology and behaviour. Such sex‐specific traits are functionally linked to variation in …

Early survival is highly variable and strongly influences observed population growth rates in
most vertebrate populations. One of the major potential drivers of survival variation among …

Research conducted in the last fifteen years has placed in question many of the traditional
conclusions scholars have formed about human female sexuality. Though conventional …

Abstract Model averaging, specifically information theoretic approaches based on Akaike's
information criterion (IT-AIC approaches), has had a major influence on statistical practices …

Steroid hormones have similar functions across vertebrates, but circulating concentrations
can vary dramatically among species. We examined the hypothesis that variation in titres of …

In vertebrates, stressors such as starvation or predator attacks stimulate the rapid elevation
of circulating glucocorticoid hormones, triggering physiological and behavioral responses …

Androgen levels show strong patterns throughout the year in male vertebrates and play an
important role in the seasonal modulation of the frequency, intensity and persistence of …

For male vertebrates, androgens are considered physiological mediators of the trade-off
between mating and parenting effort. About 30 years ago, the challenge hypothesis …

The steroid hormone testosterone (T) plays a central role in the regulation of breeding in
males, because many physiological, morphological and behavioural traits related to …

Background The evolutionary role of postcopulatory sexual selection in shaping male
reproductive traits, including sperm morphology, is well documented in several taxa …