Group intrusions by a brood parasitic fish are not cooperative

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F22%3A00551056" target="_blank" >RIV/68081766:_____/22:00551056 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/22:00127317
Result on the web
<a href="https://academic.oup.com/beheco/article/33/1/178/6400008" target="_blank" >https://academic.oup.com/beheco/article/33/1/178/6400008</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/beheco/arab123" target="_blank" >10.1093/beheco/arab123</a>

Result language
angličtina
Original language name
Group intrusions by a brood parasitic fish are not cooperative
Original language description
Brood parasites relegate all parental duties to unrelated hosts. Host resistance against brood parasitism is most effective during egg laying and is best countered by surreptitious oviposition. This may be aided through distraction of host attention by the male partner or a larger cooperative group. Cuckoo catfish (Synodontis multipunctatus) parasitize the broods of mouthbrooding cichlids, which collect their eggs immediately after oviposition. Cuckoo catfish must time their intrusion precisely, as the temporal window for parasitism lasts only a few seconds. As the cuckoo catfish typically intrude host spawning as a group, we tested whether groups of catfish distract spawning cichlid pairs more successfully than a single catfish pair. We found that larger catfish groups were not more effective in parasitism, as parasitism success by groups of three catfish pairs increased only proportionally to single catfish pairs. The number of cichlid eggs in host clutches decreased at high catfish abundance, apparently due to elevated cuckoo catfish predation on the eggs. Hence, group intrusions do not represent cooperative actions, but incur an increased cost to the host cichlid from greater egg predation by cuckoo catfish.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10613 - Zoology

Project
<a href="/en/project/GA18-00682S" target="_blank" >GA18-00682S: A novel system to understand brood parasitism: the cuckoo catfish parasitizing African cichlids</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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