Sperm competition and ejaculate economics

GA Parker, T Pizzari - Biological Reviews, 2010 - Wiley Online Library
Sperm competition was identified in 1970 as a pervasive selective force in post‐copulatory
sexual selection that occurs when the ejaculates of different males compete to fertilise a …

Sexual selection and sperm quantity: meta‐analyses of strategic ejaculation

CD Kelly, MD Jennions - Biological Reviews, 2011 - Wiley Online Library
Multiple mating or group spawning leads to post‐copulatory sexual selection, which
generally favours ejaculates that are more competitive under sperm competition. In four …

[图书][B] Reproductive biology of teleost fishes

RJ Wootton, C Smith - 2014 - books.google.com
Reproductive Biology of Teleost Fishes is the first integrated review of the reproductive
biology of the bony fishes, which are the most species-rich and diversified group of …

10· Alternative reproductive tactics in fish

M Taborsky - Alternative reproductive tactics an integrative approach, 2008 - cambridge.org
Among vertebrates, fish show by far the greatest variability of alternative reproductive tactics
(ARTs). Usually, males attempting to monopolize access to females or fertilizations are …

The influence of operational sex ratio on the intensity of competition for mates

LK Weir, JWA Grant, JA Hutchings - The American Naturalist, 2011 - journals.uchicago.edu
The evolution and maintenance of secondary sexual characteristics and behavior are
heavily influenced by the variance in mating success among individuals in a population. The …

Polyandry as a mediator of sexual selection before and after mating

C Kvarnemo, LW Simmons - … Transactions of the Royal …, 2013 - royalsocietypublishing.org
The Darwin–Bateman paradigm recognizes competition among males for access to multiple
mates as the main driver of sexual selection. Increasingly, however, females are also being …

The sperm factor: paternal impact beyond genes

S Immler - Heredity, 2018 - nature.com
The fact that sperm carry more than the paternal DNA has only been discovered just over a
decade ago. With this discovery, the idea that the paternal condition may have direct …

Sophisticated sperm allocation in male fowl

T Pizzari, CK Cornwallis, H Løvlie, S Jakobsson… - Nature, 2003 - nature.com
When a female is sexually promiscuous, the ejaculates of different males compete for the
fertilization of her eggs; the more sperm a male inseminates into a female, the more likely he …

Hormonal manipulations for the enhancement of sperm production in cultured fish and evaluation of sperm quality

CC Mylonas, NJ Duncan, JF Asturiano - Aquaculture, 2017 - Elsevier
This article reviews the use of hormonal treatments to enhance sperm production in
aquaculture fish and the methods available for evaluating sperm quality. The different types …

Image content influences men's semen quality

SJ Kilgallon, LW Simmons - Biology Letters, 2005 - royalsocietypublishing.org
There is increasing evidence from non-human animals that males adjust their ejaculate
expenditure according to the risk of sperm competition. In this study we show that, after …