Počet záznamů: 1
Early life-history predator-prey reversal in two cyprinid fishes
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SYSNO ASEP 0479889 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Early life-history predator-prey reversal in two cyprinid fishes Tvůrce(i) Šmejkal, Marek (BC-A) RID, ORCID
Baran, Roman (BC-A)
Blabolil, Petr (BC-A) RID, ORCID
Vejřík, Lukáš (BC-A) RID, ORCID
Prchalová, Marie (BC-A) RID, ORCID
Bartoň, Daniel (BC-A) RID
Mrkvička, Tomáš (BC-A) RID
Kubečka, Jan (BC-A) RID, ORCIDCelkový počet autorů 8 Číslo článku 6924 Zdroj.dok. Scientific Reports. - : Nature Publishing Group - ISSN 2045-2322
Roč. 7, JUL (2017)Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova predator-prey relationship ; fish spawning ; bleak ; asp Vědní obor RIV EH - Ekologie - společenstva Obor OECD Ecology CEP 7F14316 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy GPP505/12/P647 GA ČR - Grantová agentura ČR Institucionální podpora BC-A - RVO:60077344 UT WOS 000424102400001 EID SCOPUS 85026629721 DOI 10.1038/s41598-017-07339-w Anotace Predator-prey relationships are often perceived simply as a situation in which a predator enhances its own fitness while reducing the fitness of its prey. However, this relationship may become reversed when the prey feeds on the juvenile predator stages. We investigated this phenomenon in a model asp (Leuciscus aspius, predator)-bleak (Alburnus alburnus, prey) relationship. The adhesive asp eggs are avail able for bleak predation after a spawning event for only tens of seconds before they adhere to the stones, where bleak do not forage. Gut content analysis demonstrated that eggs were utilized in high quantities, especially in the spawning peak of the asp reproductive season. Furthermore, using underwater video, we recorded the bleak feeding efficiency on naturally drifting asp eggs as the percentage of eggs eaten. Within the 40 cm egg trajectory captured by our cameras, total egg mortality was 21.2 ± 2.2% on average. The highest survival chances occurred among eggs drifting in aggregations, since the short drifting distance together with their aggregated distribution satiated bleak and part of the egg aggregation could attach to the spawning ground. This study emphasizes the potential efficiency of predator egg utilization by prey, which may have further consequences in predator-prey dynamics. Pracoviště Biologické centrum (od r. 2006) Kontakt Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Rok sběru 2018
Počet záznamů: 1