Assessment of sperm competition by European bitterling, Rhodeus sericeus.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F03%3A67030007" target="_blank" >RIV/68081766:_____/03:67030007 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Assessment of sperm competition by European bitterling, Rhodeus sericeus.

Popis výsledku v původním jazyce

We investigated male assessment of sperm competition in the bitterling. Field experiments showed males increased their inspection rate of mussels into which sperm had been experimentally released. Males avoided leading females to mussels that contained high numbers of embryos, but did not alter their leading behavior in response to the presence of sperm. In laboratory experiments males also increased their inspection rate of mussels into which sperm had been released and also failed to alter their leading behavior in response to the presence of sperm in mussels. However, males avoided leading females to mussels in proximity to other males. In a second field study, territorial males ejaculated into mussels at a low rate in the absence of competitors, increase the ejaculations in competition with a rival, then decrease ejaculate expenditure as the number of competing males increased. Observed data significantly correlated with predicted estimates of ejaculate expenditure.

Název v anglickém jazyce

Assessment of sperm competition by European bitterling, Rhodeus sericeus.

Popis výsledku anglicky

We investigated male assessment of sperm competition in the bitterling. Field experiments showed males increased their inspection rate of mussels into which sperm had been experimentally released. Males avoided leading females to mussels that contained high numbers of embryos, but did not alter their leading behavior in response to the presence of sperm. In laboratory experiments males also increased their inspection rate of mussels into which sperm had been released and also failed to alter their leading behavior in response to the presence of sperm in mussels. However, males avoided leading females to mussels in proximity to other males. In a second field study, territorial males ejaculated into mussels at a low rate in the absence of competitors, increase the ejaculations in competition with a rival, then decrease ejaculate expenditure as the number of competing males increased. Observed data significantly correlated with predicted estimates of ejaculate expenditure.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Behavioral Ecology and Sociobiology

ISSN

0340-5443

e-ISSN

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Svazek periodika

53

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

206-213

Kód UT WoS článku

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EID výsledku v databázi Scopus

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