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| Description
| - Studie sledovala důsledky soupeření mezi samci, které souvisí s existencí alernativních reprodukčních strategií u hořavky duhové. Zjistili jsme, že počet jiker, které samice nakladly, byl ovlivněn počtem mlžů potřebným ke kladení. Tento vliv byl zprostředkován interakcemi mezi soupeřícími samci vzhledem k variabilitě v OSR a ne přímo kapacitou mlžů. Obě studované hustoty samců měly vlyv na chování při tření a vzájemně interagovaly. Agresivita teritoriálních samců prodlužovala intervaly mezi jednotlivými třeními a rostla se samčí hustotou. Při nejvyšší hustotě však došlo ke zlomu, což mělo stabilizující vliv na počet tření. (cs)
- We investigated the consequences of male-male interference competition associated with alternative male mating tactics in the European bitterling (Rhodeus sericeus). We showed that the total number of eggs spawned by females was constrained by the number of mussels available for oviposition. The effect was mediated by behavioral interactions among competing males because of variation in the Operational Sex Ratio (OSR) in close proximity to a mussel and not by a direct limitation in mussel capacity to accommodate the eggs. Both total and local male densities affected spawning behavior, and interacted in their effect on female spawning rate. Territorial male aggression caused courtship interruptions that prolonged the time until successful spawning and increased with male density. However, territoriality broke down at the highest male density, with a consequent stabilizing effect on spawning rate.
- We investigated the consequences of male-male interference competition associated with alternative male mating tactics in the European bitterling (Rhodeus sericeus). We showed that the total number of eggs spawned by females was constrained by the number of mussels available for oviposition. The effect was mediated by behavioral interactions among competing males because of variation in the Operational Sex Ratio (OSR) in close proximity to a mussel and not by a direct limitation in mussel capacity to accommodate the eggs. Both total and local male densities affected spawning behavior, and interacted in their effect on female spawning rate. Territorial male aggression caused courtship interruptions that prolonged the time until successful spawning and increased with male density. However, territoriality broke down at the highest male density, with a consequent stabilizing effect on spawning rate. (en)
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| Title
| - Male-male interference competition decreases spawning rate in the European bitterling (Rhodeus sericeus)
- Souboje mezi samci snižují množství tření hořavky duhové (cs)
- Male-male interference competition decreases spawning rate in the European bitterling (Rhodeus sericeus) (en)
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| skos:prefLabel
| - Male-male interference competition decreases spawning rate in the European bitterling (Rhodeus sericeus)
- Souboje mezi samci snižují množství tření hořavky duhové (cs)
- Male-male interference competition decreases spawning rate in the European bitterling (Rhodeus sericeus) (en)
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| skos:notation
| - RIV/68081766:_____/04:00101755!RIV/2005/AV0/A67005/N
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/68081766:_____/04:00101755
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - alternative mating tactics;density dependence;operational sex ratio (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
| - DE - Spolková republika Německo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Behavioral Ecology and Sociobiology
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Reichard, Martin
- Smith, C.
- Jurajda, Pavel
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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