Sperm competition and ejaculate economics
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 that occurs when the ejaculates of different males compete to fertilise a …
Sexual selection and sperm quantity: meta‐analyses of strategic ejaculation
Multiple mating or group spawning leads to post‐copulatory sexual selection, which
generally favours ejaculates that are more competitive under sperm competition. In four …
generally favours ejaculates that are more competitive under sperm competition. In four …
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 …
(ARTs). Usually, males attempting to monopolize access to females or fertilizations are …
Conceptual developments in sperm competition: a very brief synopsis
GA Parker - … Transactions of the Royal Society B, 2020 - royalsocietypublishing.org
The past half century has seen the development of the field of post-ejaculatory sexual
selection, the sequel to sexual selection for mate-acquisition (pre-ejaculatory) described by …
selection, the sequel to sexual selection for mate-acquisition (pre-ejaculatory) described by …
Ovarian fluid allows directional cryptic female choice despite external fertilization
In species with internal fertilization, females can favour certain males over others, not only
before mating but also within the female's reproductive tract after mating. Here, we ask …
before mating but also within the female's reproductive tract after mating. Here, we ask …
Sperm and alternative reproductive tactics: a review of existing theory and empirical data
Males that exhibit alternative reproductive tactics (ARTs) often differ in the risk of sperm
competition and the energetic trade-offs they experience. The resulting patterns of selection …
competition and the energetic trade-offs they experience. The resulting patterns of selection …
Sperm investment and alternative mating tactics in bluegill sunfish (Lepomis macrochirus)
Although alternative mating tactics are found in males of many species, little is known about
tactic-specific adaptations to sperm competition and the mechanism by which fertilization …
tactic-specific adaptations to sperm competition and the mechanism by which fertilization …
Testes, sperm, and sperm competition
This chapter looks at some of the diversity of gross morphology in testes and spermatozoa in
the fishes in the context of sexual selection resulting from sperm competition. It explains why …
the fishes in the context of sexual selection resulting from sperm competition. It explains why …
Sexual networks: measuring sexual selection in structured, polyandrous populations
Sexual selection is traditionally measured at the population level, assuming that populations
lack structure. However, increasing evidence undermines this approach, indicating that …
lack structure. However, increasing evidence undermines this approach, indicating that …
Mate guarding, male attractiveness, and paternity under social monogamy
Socially monogamous species vary widely in the frequency of extrapair offspring, but this is
usually discussed assuming that females are free to express mate choice. Using game …
usually discussed assuming that females are free to express mate choice. Using game …