| Attributes | Values |
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| rdf:type
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| Description
| - V článku se teoreticky a empiricky studuje rozložení dvou druhů ryb. Každý z obou druhů se bez přítomnosti druhého rozložil mezi dvě krmítka v poměru, který odpovídal přísunu potravy. To odpovídá klasické predikci založené na tzv. Parkerově pravidle. Pokud byly oba druhy pohromadě, rozložení kardinálek se nezměnilo, ale dania využívala více horší z obou krmítek než by odpovídalo jednodruhovému rozložení. Důvodem byla odlišná potravní strategie, kdy kardinálky zůstávaly v blízkosti krmítek a získávaly více potravy než dania. Tato mezidruhová interference vede k tomu, že Parkerův princip, zobecněný pro dva druhy, neodpovídal empirickému pozorování. (cs)
- In this article a distribution of two fish species (danio and minnow) is studied. In the presence of conspecifics alone, individuals of each species conform to Parker’s matching rule, distributing themselves according to the ratio of the food supply rates. When both species are present, the minnow distribut. still follows the matching rule but the danio selects the feeding site with the lower food supply rate disproportionately more often than when it is alone. Hence, while intraspecific competition does not affect feeding site preferences in either of the species, interspecific competition between minnows and danios is asymmetric; the minnow is the dominant competitor. We trace the asymmetry to species-specific foraging tactics. Minnows stay much closer to a feeding site and reach food items twice as quickly as danios. Thus, interference between species appears to drive the asymmetric competition which makes Parker’s matching rule generalized to a two-species environment inadequate.
- In this article a distribution of two fish species (danio and minnow) is studied. In the presence of conspecifics alone, individuals of each species conform to Parker’s matching rule, distributing themselves according to the ratio of the food supply rates. When both species are present, the minnow distribut. still follows the matching rule but the danio selects the feeding site with the lower food supply rate disproportionately more often than when it is alone. Hence, while intraspecific competition does not affect feeding site preferences in either of the species, interspecific competition between minnows and danios is asymmetric; the minnow is the dominant competitor. We trace the asymmetry to species-specific foraging tactics. Minnows stay much closer to a feeding site and reach food items twice as quickly as danios. Thus, interference between species appears to drive the asymmetric competition which makes Parker’s matching rule generalized to a two-species environment inadequate. (en)
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| Title
| - Asymmetric competition, body size, and foraging tactics: testing the ideal free distribution in two competing fish species
- Asymmetric competition, body size, and foraging tactics: testing the ideal free distribution in two competing fish species (en)
- Asymetrická kompetice: prostorové rozložení dvou kompetujících si druhů ryb (cs)
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| skos:prefLabel
| - Asymmetric competition, body size, and foraging tactics: testing the ideal free distribution in two competing fish species
- Asymmetric competition, body size, and foraging tactics: testing the ideal free distribution in two competing fish species (en)
- Asymetrická kompetice: prostorové rozložení dvou kompetujících si druhů ryb (cs)
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| skos:notation
| - RIV/60077344:_____/06:00039263!RIV07-AV0-60077344
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| http://linked.open.../vavai/riv/strany
| |
| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| - P(IAA100070601), P(IAA6007303), Z(AV0Z50070508), Z(MSM6007665801)
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| http://linked.open...iv/cisloPeriodika
| |
| http://linked.open...vai/riv/dodaniDat
| |
| http://linked.open...aciTvurceVysledku
| |
| http://linked.open.../riv/druhVysledku
| |
| http://linked.open...iv/duvernostUdaju
| |
| http://linked.open...titaPredkladatele
| |
| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/60077344:_____/06:00039263
|
| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - allopatric species; asymmetric competititon; body size (en)
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| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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| http://linked.open...ontrolniKodProRIV
| |
| http://linked.open...i/riv/nazevZdroje
| - Evolutionary Ecology Research
|
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...v/svazekPeriodika
| |
| http://linked.open...iv/tvurceVysledku
| - Berec, Luděk
- Křivan, Vlastimil
- Berec, M.
|
| http://linked.open...n/vavai/riv/zamer
| |
| issn
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| number of pages
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