Sperm competition and the evolution of sperm design in mammals [PDF]
BMC Evolutionary Biology, 2011 Background The influence of sperm competition upon sperm size has been a controversial issue during the last 20 years which remains unresolved for mammals.
Gomendio Montserrat +2 more
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Within-ejaculate sperm competition. [PDF]
Philos Trans R Soc Lond B Biol Sci, 2020 Sperm competition was defined by Geoff Parker 50 years ago as the competition between sperm from two or more males over the fertilization of a set of eggs. Since the publication of his seminal paper, sperm competition has developed into a large field of research, and many aspects are still being discovered.
Sutter A, Immler S.
europepmc +8 more sources
Sperm competition and ejaculate economics
Biological Reviews, 2010 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 given set of ova. Since then, sperm competition has been much studied both empirically and theoretically.
G A Parker, Tommaso Pizzari
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Using Gamma Irradiation to Predict Sperm Competition Mechanism in Bagrada hilaris (Burmeister) (Hemiptera: Pentatomidae): Insights for a Future Management Strategy [PDF]
Insects, 2023 The stink bug, Bagrada hilaris, is a pest of mainly Brassicaceae crops. It is native to Africa and Asia and was recently reported as invasive in the southwestern part of the USA and in South America.
Chiara Elvira Mainardi +7 more
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Sperm Viability and Sperm Competition in Insects [PDF]
Current Biology, 2002 Uploaded by Plazi for TaxoDros. We do not have abstracts.
Hunter, F.M, Birkhead, T.R
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Variation in Eusperm Length May Reflect Reproductive Barriers and Differences in Sperm Competition Intensity Among Littorina Snails [PDF]
Ecology and EvolutionReproductive barriers limit gene flow and drive population divergence. Sperm morphology plays an important role in reproductive barriers, as successful fertilization depends on how well sperm perform in the female environment.
Luisa Kumpitsch +3 more
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Genetic Factors Influencing Sperm Competition [PDF]
Frontiers in Genetics, 2019 Females of many different species often mate with multiple males, creating opportunities for competition among their sperm. Although originally unappreciated, sperm competition is now considered a central form of post-copulatory male–male competition ...
Alberto Civetta, José M. Ranz
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Sperm competition, sperm numbers and sperm quality in muroid rodents. [PDF]
PLoS ONE, 2011 Sperm competition favors increases in relative testes mass and production efficiency, and changes in sperm phenotype that result in faster swimming speeds. However, little is known about its effects on traits that contribute to determine the quality of a
Laura Gómez Montoto +7 more
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Male diet affects female fitness and sperm competition in human- and bat-associated lineages of the common bedbug, Cimex lectularius [PDF]
Scientific Reports, 2021 Sperm performance can vary in ecologically divergent populations, but it is often not clear whether the environment per se or genomic differences arising from divergent selection cause the difference.
Jana Křemenová +7 more
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Sperm competition in squamate reptiles. [PDF]
Philos Trans R Soc Lond B Biol Sci, 2020 Multiple paternity is ubiquitous within the polyphyletic group called ‘reptiles', especially within the lizards and snakes. Therefore, the probability of sperm competition occurring, and being intense, is high. Squamates exhibit a diversity of tactics to ensure fertilization success in the face of sperm competition. The duration of female sperm storage,
Friesen CR, Kahrl AF, Olsson M.
europepmc +5 more sources