Darwinian sex roles confirmed across the animal kingdom

T Janicke, IK Häderer, MJ Lajeunesse, N Anthes - Science advances, 2016 - science.org
Since Darwin's conception of sexual selection theory, scientists have struggled to identify the
evolutionary forces underlying the pervasive differences between male and female …

Sexual selection and its evolutionary consequences in female animals

RM Hare, LW Simmons - Biological Reviews, 2019 - Wiley Online Library
For sexual selection to act on a given sex, there must exist variation in the reproductive
success of that sex as a result of differential access to mates or fertilisations. The …

The mismeasurement of sexual selection

H Klug, J Heuschele, MD Jennions… - Journal of evolutionary …, 2010 - academic.oup.com
Sexual selection can explain major micro‐and macro‐evolutionary patterns. Much of current
theory predicts that the strength of sexual selection (i) is driven by the relative abundance of …

Purging the genome with sexual selection: reducing mutation load through selection on males

MC Whitlock, AF Agrawal - Evolution, 2009 - academic.oup.com
Healthy males are likely to have higher mating success than unhealthy males because of
differential expression of condition-dependent traits such as mate searching intensity …

Unifying cornerstones of sexual selection: operational sex ratio, Bateman gradient and the scope for competitive investment

H Kokko, H Klug, MD Jennions - Ecology Letters, 2012 - Wiley Online Library
What explains variation in the strength of sexual selection across species, populations or
differences between the sexes? Here, we show that unifying two well‐known lines of …

On the opportunity for sexual selection, the Bateman gradient and the maximum intensity of sexual selection

AG Jones - Evolution, 2009 - academic.oup.com
Bateman's classic paper on fly mating systems inspired quantitative study of sexual selection
but also resulted in much debate and confusion. Here, I consider the meaning of Bateman's …

Intensity of sexual selection along the anisogamy–isogamy continuum

A Bjork, S Pitnick - Nature, 2006 - nature.com
Research into the evolution of giant sperm has uncovered a paradox within the foundations
of sexual selection theory. Postcopulatory sexual selection on males (that is, sperm …

Demographic stochasticity, Allee effects, and extinction: the influence of mating system and sex ratio

AM Lee, BE Sæther, S Engen - The American Naturalist, 2011 - journals.uchicago.edu
Demographic stochasticity has a substantial influence on the growth of small populations
and consequently on their extinction risk. Mating system is one of several population …

Does the potential strength of sexual selection differ between mating systems with and without defensive behaviours? A meta‐analysis

RC Macedo‐Rego, MD Jennions… - Biological …, 2024 - Wiley Online Library
ABSTRACT The Darwin–Bateman paradigm predicts that females enhance their fitness by
being choosy and mating with high‐quality males, while males should compete to mate with …

Quantitative measure of sexual selection with respect to the operational sex ratio: a comparison of selection indices

SC Mills, A Grapputo, E Koskela… - Proceedings of the …, 2007 - royalsocietypublishing.org
Despite numerous indices proposed to predict the evolution of mating systems, a unified
measure of sexual selection has remained elusive. Three previous studies have compared …