Strategic sperm allocation and a Coolidge effect in an externally fertilizing species

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F13%3A00380514" target="_blank" >RIV/68081766:_____/13:00380514 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1093/beheco/ars138" target="_blank" >http://dx.doi.org/10.1093/beheco/ars138</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/beheco/ars138" target="_blank" >10.1093/beheco/ars138</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Strategic sperm allocation and a Coolidge effect in an externally fertilizing species

Popis výsledku v původním jazyce

Because sperm is costly and limiting, males are predicted to allocate sperm differentially across matings, according to the level of sperm competition, female reproductive quality, and female novelty. We investigated sperm allocation in the European bitterling (Rhodeus amarus), an externally fertilizing species of fish that spawns and incubates its eggs in the gills of freshwater mussels. We predicted that males would allocate sperm differentially according to the quality and novelty of mussels. Dominant males responded to rivals by increasing both sperm investment and aggression, whereas subordinates responded chiefly through sperm investment. Dominant males invested more sperm in novel mussels in accordance with predictions for a Coolidge effect, themussel representing a new fertilization opportunity. However, subordinate males were not influenced by mussel novelty but were responsive to order of mating. Males did not allocate sperm according to mussel quality, suggesting that certa

Název v anglickém jazyce

Strategic sperm allocation and a Coolidge effect in an externally fertilizing species

Popis výsledku anglicky

Because sperm is costly and limiting, males are predicted to allocate sperm differentially across matings, according to the level of sperm competition, female reproductive quality, and female novelty. We investigated sperm allocation in the European bitterling (Rhodeus amarus), an externally fertilizing species of fish that spawns and incubates its eggs in the gills of freshwater mussels. We predicted that males would allocate sperm differentially according to the quality and novelty of mussels. Dominant males responded to rivals by increasing both sperm investment and aggression, whereas subordinates responded chiefly through sperm investment. Dominant males invested more sperm in novel mussels in accordance with predictions for a Coolidge effect, themussel representing a new fertilization opportunity. However, subordinate males were not influenced by mussel novelty but were responsive to order of mating. Males did not allocate sperm according to mussel quality, suggesting that certa

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

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Behavioral Ecology

ISSN

1045-2249

e-ISSN

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Svazek periodika

24

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

82-88

Kód UT WoS článku

000312431000015

EID výsledku v databázi Scopus

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