About: A sperm competition model for the European bitterling (Rhodeus amarus)

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About: A sperm competition model for the European bitterling (Rhodeus amarus) Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Sperm competition occurs when the spermatozoa of one male coincide with those of another to fertilise the same eggs. In some taxa males perform multiple ejaculations, which may function in sperm competition or in maintaining a baseline density of spermatozoa in the female reproductive tract to ensure fertilisation, a process that has been termed %22topping up%22. We investigated multiple ejaculations in the European bitterling (Rhodeus amarus), a freshwater fish that oviposits in freshwater mussels. We quantified spermatozoa in the mussel mantle cavity following ejaculation, and measured sperm motility parameters of males adopting different mating tactics. Following ejaculation spermatozoa density in the mussel increased linearly, peaked after 30 s, and then declined exponentially. Spermatozoa motility parameters did not differ between male mating tactics. We parameterised a model of sperm competition for R. amarus, which accurately predicted male fertilisation probability. We discuss these results in the context of multiple ejaculations and male mating tactics. Sperm competition occurs when the spermatozoa of one male coincide with those of another to fertilise the same eggs. In some taxa males perform multiple ejaculations, which may function in sperm competition or in maintaining a baseline density of spermatozoa in the female reproductive tract to ensure fertilisation, a process that has been termed %22topping up%22. We investigated multiple ejaculations in the European bitterling (Rhodeus amarus), a freshwater fish that oviposits in freshwater mussels. We quantified spermatozoa in the mussel mantle cavity following ejaculation, and measured sperm motility parameters of males adopting different mating tactics. Following ejaculation spermatozoa density in the mussel increased linearly, peaked after 30 s, and then declined exponentially. Spermatozoa motility parameters did not differ between male mating tactics. We parameterised a model of sperm competition for R. amarus, which accurately predicted male fertilisation probability. We discuss these results in the context of multiple ejaculations and male mating tactics. (en)
Title	A sperm competition model for the European bitterling (Rhodeus amarus) A sperm competition model for the European bitterling (Rhodeus amarus) (en)
skos:prefLabel	A sperm competition model for the European bitterling (Rhodeus amarus) A sperm competition model for the European bitterling (Rhodeus amarus) (en)
skos:notation	RIV/68081766:_____/13:00397413!RIV14-GA0-68081766
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA206/09/1163)
http://linked.open...iv/cisloPeriodika	14
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Reichard, Martin Smith, Carl
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav biologie obratlovců AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	59084
http://linked.open...ai/riv/idVysledku	RIV/68081766:_____/13:00397413
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Acheilognathinae; alternative mating tactics; mating system; sneaking; sperm competition; sperm motility (en)
http://linked.open.../riv/klicoveSlovo	Acheilognathinae alternative mating tactics sneaking sperm motility mating system sperm competition
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[3F72E37228F6]
http://linked.open...i/riv/nazevZdroje	Behaviour
http://linked.open...in/vavai/riv/obor	EG
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Personalities, male mating tactics and role of females in sexual selection: studies on fish model systems
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	150
http://linked.open...iv/tvurceVysledku	Reichard, Martin Smith, Carl
http://linked.open...ain/vavai/riv/wos	000325754100004
issn	0005-7959
number of pages	22 (xsd:int)
http://bibframe.org/vocab/doi	10.1163/1568539X-00003116

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