ArticleBiology letters2007
Male crickets adjust ejaculate quality with both risk and intensity of sperm competition.
Article in Biology letters, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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Who cites it
29 citing papers in PubMed.
- Male responses to sperm competition risk associated with increased macronutrient intake and reduced lifespan.Biology letters · 2023Article
- Juvenile socio-sexual experience determines lifetime sperm expenditure and adult survival in a polygamous moth, Ephestia kuehniella.Insect science · 2023Review
- Larval social cues influence testicular investment in an insect.Current zoology · 2022Article
- Article
- Quantifying variation in female internal genitalia: no evidence for plasticity in response to sexual conflict risk in a seed beetle.Proceedings. Biological sciences · 2021Article
- Evidence of sperm removal behaviour in an externally fertilizing species and compensatory behaviour for the risk of self-sperm removal.Proceedings. Biological sciences · 2020Article
- Males adjust their manipulation of female remating in response to sperm competition risk.Proceedings. Biological sciences · 2020Article
- Male responses to sperm competition when rivals vary in number and familiarity.Proceedings. Biological sciences · 2019Article
- Multiple biological mechanisms result in correlations between pre- and post-mating traits that differ among versus within individuals and genotypes.Proceedings. Biological sciences · 2018Article
- Flexible memory controls sperm competition responses in maleProceedings. Biological sciences · 2018Article
- Social manipulation of sperm competition intensity reduces seminal fluid gene expression.Biology letters · 2018Article
- Socially cued seminal fluid gene expression mediates responses in ejaculate quality to sperm competition risk.Proceedings. Biological sciences · 2017Article
- Sperm storage by males causes changes in sperm phenotype and influences the reproductive fitness of males and their sons.Evolution letters · 2017Article
- Protein and carbohydrate intake influence sperm number and fertility in male cockroaches, but not sperm viability.Proceedings. Biological sciences · 2015Article
- Tactic-specific differences in seminal fluid influence sperm performance.Proceedings. Biological sciences · 2013Article
- Tissue-specific transcriptomics in the field cricket Teleogryllus oceanicus.G3 (Bethesda, Md.) · 2013Article
- Article
- Seminal fluid affects sperm viability in a cricket.PloS one · 2011Article
- Article
- Female presence influences sperm velocity in the guppy.Biology letters · 2009Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sperm competition theory predicts that males should increase their expenditure on the ejaculate with increasing risk of sperm competition, but decrease their expenditure with increasing intensity. There is accumulating evidence for sperm competition theory, based on examinations of testes size and/or the numbers of sperm ejaculated. However, recent studies suggest that ejaculate quality can also be subject to selection by sperm competition. We used experimental manipulations of the risk and intensity of sperm competition in the cricket, Teleogryllus oceanicus. We found that males produced ejaculates with a greater percentage of live sperm when they had encountered a rival male prior to mating. However, when mating with a female that presented a high intensity of sperm competition, males did not respond to risk, but produced ejaculates with a reduced percentage of live sperm. Our data suggest that males exhibit a fine-tuned hierarchy of responses to these cues of sperm competition.
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