Sex roles and sex ratios in animals
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 …
physiology and behaviour. Such sex‐specific traits are functionally linked to variation in …
Adult sex ratios: causes of variation and implications for animal and human societies
Converging lines of inquiry from across the social and biological sciences target the adult
sex ratio (ASR; the proportion of males in the adult population) as a fundamental population …
sex ratio (ASR; the proportion of males in the adult population) as a fundamental population …
Sex roles in birds: phylogenetic analyses of the influence of climate, life histories and social environment
Sex roles describe sex differences in courtship, mate competition, social pair‐bonds and
parental care. A key challenge is to identify associations among the components and the …
parental care. A key challenge is to identify associations among the components and the …
The 150th anniversary of The Descent of Man: Darwin and the impact of sex-role reversal on sexual selection research
The year 2021 marks the 150th anniversary of the publication of Charles Darwin's
extraordinary book The Descent of Man and Selection in Relation to Sex. Here, we review …
extraordinary book The Descent of Man and Selection in Relation to Sex. Here, we review …
The causes and implications of sex role diversity in shorebird breeding systems
Males and females often exhibit different behaviours during mate acquisition, pair‐bonding
and parenting, and a convenient label to characterize these behaviours is sex role. The …
and parenting, and a convenient label to characterize these behaviours is sex role. The …
Sex-differences in phenology: A Tinbergian perspective
Shifts in the timing of cyclic seasonal life-history events are among the most commonly
reported responses to climate change, with differences in response rates among interacting …
reported responses to climate change, with differences in response rates among interacting …
Can sex-specific metabolic rates provide insight into patterns of metabolic scaling?
Females and males can exhibit striking differences in body size, relative trait size,
physiology, and behavior. As a consequence, the sexes can have very different rates of …
physiology, and behavior. As a consequence, the sexes can have very different rates of …
Evolutionary origins of cooperative and communal breeding: lessons from the crotophagine cuckoos
C Riehl - Ethology, 2021 - Wiley Online Library
Most cooperatively breeding birds live in family groups, in which a breeding pair is assisted
by genetically related “helpers” who do not reproduce. In some species, however, several …
by genetically related “helpers” who do not reproduce. In some species, however, several …
The evolution of sex roles: The importance of ecology and social environment
N Fresneau, I Pipoly, D Gigler… - Proceedings of the …, 2024 - National Acad Sciences
Males and females often have different roles in reproduction, although the origin of these
differences has remained controversial. Explaining the enigmatic reversed sex roles where …
differences has remained controversial. Explaining the enigmatic reversed sex roles where …
Androgen-armoured amazons: reversed sex roles in coucals are associated with testosterone in females but not males
W Goymann - Proceedings of the Royal Society B, 2023 - royalsocietypublishing.org
In some species, sexual selection is stronger in females than males. In classically
polyandrous birds, for instance, females compete for mating opportunities and males care …
polyandrous birds, for instance, females compete for mating opportunities and males care …