The effect of crowding and density on male mating behaviour in the rose bitterling (Rhodeus ocellatus)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F10%3A00345138" target="_blank" >RIV/68081766:_____/10:00345138 - 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

The effect of crowding and density on male mating behaviour in the rose bitterling (Rhodeus ocellatus)

Popis výsledku v původním jazyce

Female density and resource availability are two key variables that shape mating systems. Here we tested mean crowding, defined as the number of males per unit of resource, and density per se, defined as the number of individuals present per unit area, to investigate their effect on the mating system of Rhodeus ocellatus. Males were exposed to combinations of high and low levels of crowding and density, while the operational sex ratio was held constant. High levels of crowding significantly affected theproportion of mussel spawning sites defended by males and the proportion of mussels into which sperm was released. In contrast to theoretical predictions, neither density nor crowding influenced overall male aggressive behaviours. Density, but not crowding, had a significant effect on male courtship rate, which arose as a possible trade-off between intra-sexual competition and inter-sexual behaviour.

Název v anglickém jazyce

The effect of crowding and density on male mating behaviour in the rose bitterling (Rhodeus ocellatus)

Popis výsledku anglicky

Female density and resource availability are two key variables that shape mating systems. Here we tested mean crowding, defined as the number of males per unit of resource, and density per se, defined as the number of individuals present per unit area, to investigate their effect on the mating system of Rhodeus ocellatus. Males were exposed to combinations of high and low levels of crowding and density, while the operational sex ratio was held constant. High levels of crowding significantly affected theproportion of mussel spawning sites defended by males and the proportion of mussels into which sperm was released. In contrast to theoretical predictions, neither density nor crowding influenced overall male aggressive behaviours. Density, but not crowding, had a significant effect on male courtship rate, which arose as a possible trade-off between intra-sexual competition and inter-sexual behaviour.

Druh

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

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA206%2F09%2F1163" target="_blank" >GA206/09/1163: Personality, reprodukční strategie samců a role samic v pohlavním výběru: studie modelových druhů ryb</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Behaviour

ISSN

0005-7959

e-ISSN

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Svazek periodika

147

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

16

Strana od-do

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Kód UT WoS článku

000279562700006

EID výsledku v databázi Scopus

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