ReviewPhilosophical transactions of the Royal Society of London. Series B, Biological sciences2020
Sperm competition and fertilization mode in fishes.
Review in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
23 citing papers in PubMed, 1 synthesis or guideline pooled it, 65 citations in OpenAlex.
- Male alternative reproductive tactics and sperm competition: a meta-analysis.Biological reviews of the Cambridge Philosophical Society · 2022Pooled it
- Article
- Single cell RNA-sequencing reveals no evidence for meiotic sex chromosome inactivation in the threespine stickleback fish.PLoS genetics · 2025Article
- Variation in Eusperm Length May Reflect Reproductive Barriers and Differences in Sperm Competition Intensity AmongEcology and evolution · 2025Article
- Single cell RNA-sequencing reveals no evidence for meiotic sex chromosome inactivation in the threespine stickleback fish.bioRxiv : the preprint server for biology · 2025Article
- Size-dependent resource allocation to reproduction in Japanese anchovies (Engraulis japonicus).Scientific reports · 2025Article
- Transformation of sperm structure in Octopus vulgaris: From spermatogenesis to spermatophoric release.PloS one · 2025Article
- The ancient and helical architecture of Elasmobranchii's spermatozoa enables progressive motility in viscous environments.PloS one · 2025Article
- Polyandry and sperm competition in two traumatically inseminating species of Strepsiptera (Insecta).Scientific reports · 2024Article
- Sperm competition increases sperm production and quality inProceedings. Biological sciences · 2023Article
- Molecular, behavioural and morphological comparisons of sperm adaptations in a fish with alternative reproductive tactics.Evolutionary applications · 2023Article
- Characterization of sperm and implications for male fertility in the last of the Rhynchocephalians.Conservation physiology · 2023Article
- Fertilization modes and the evolution of sperm characteristics in marine fishes: Paired comparisons of externally and internally fertilizing species.Ecology and evolution · 2022Article
- Effects of reliance on stored sperm on reproduction in the sailfin molly Poecilia latipinna.Journal of fish biology · 2022Article
- Article
- Switches, stability and reversals in the evolutionary history of sexual systems in fish.Nature communications · 2022Article
- Review
- Article
- Black goby territorial males adjust their ejaculate's characteristics in response to the presence of sneakers.Biology letters · 2021Article
- Ancestral Sperm Ecotypes Reveal Multiple Invasions of a Non-Native Fish in Northern Europe.Cells · 2021Article
Corrections and comments
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Authors and funding
1 author at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sperm competition is a powerful selective force that has shaped sexual traits throughout animal evolution. Yet, how fertilization mode (i.e. external versus internal fertilization) influences the scope and potential for sperm competition to act on ejaculates remains unclear. Here, I examine how fertilization mode shapes ejaculatory responses to sperm competition in fishes, a diverse group that constitute the majority of vertebrate biological diversity. Fishes are an ideal group for this examination because they exhibit a wide range of reproductive behaviours and an unparalleled number of transitions in fertilization mode compared to any other vertebrate group. Drawing on data from cartilaginous and bony fishes, I first show that rates of multiple paternity are higher in internally than externally fertilizing fishes, contrary to the prevailing expectation. I then summarize how sperm competition acts on sperm number and quality in internally and externally fertilizing fishes, highlighting where theoretical predictions differ between these groups. Differences in how ejaculates respond to sperm competition between fertilization modes are most apparent when considering sperm size and swimming performance. Clarifying how fertilization mode influences evolutionary responses in ejaculates will inform our understanding of ejaculate evolution across the animal tree of life. This article is part of the theme issue 'Fifty years of sperm competition'.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.