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Environmental conditions as proximate cues of predation risk inducing defensive response in Daphnia pulex
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SYSNO ASEP 0541188 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Environmental conditions as proximate cues of predation risk inducing defensive response in Daphnia pulex Tvůrce(i) Suppa, A. (IT)
Caleffi, S. (IT)
Gorbi, G. (IT)
Marková, Silvia (UZFG-Y) RID, ORCID
Kotlík, Petr (UZFG-Y) RID, ORCID
Rossi, V. (IT)Zdroj.dok. Biologia. - : Springer - ISSN 0006-3088
Roč. 76, č. 2 (2021), s. 623-632Poč.str. 10 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. SK - Slovensko Klíč. slova neckteeth ; phenotypic plasticity ; photoperiod Vědní obor RIV EB - Genetika a molekulární biologie Obor OECD Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology CEP EF16_027/0008502 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Omezený přístup Institucionální podpora UZFG-Y - RVO:67985904 UT WOS 000583929700002 EID SCOPUS 85093967052 DOI 10.2478/s11756-020-00583-y Anotace Daphnia pulex from a pond in Northern Italy shows four distinct defensive morphotypes, varying in the number, location and thickness of neckteeth, as the results of phenotypic plasticity. Because the frequency of the morphotypes was not related to the density of Chaoborus flavicans larvae, the main predators of D. pulex, it has been suggested that environmental factors such as long-day photoperiod, temperature or crowding might act as proximate cues for the predation risk. Here, we analysed the morphotypes of newborn D. pulex produced by mothers not exposed to chemical cues (kairomones) released by Chaoborus, but reared under environmental conditions simulating seasonal differences in predation risk. Three experimental treatments, low temperature and short-day photoperiod (16 degrees C 12:12 L:D), high temperature and long-day photoperiod (20 degrees C 14:10 L:D), and crowding under high temperature and long-day photoperiod, were compared for three clonal lineages. Almost 70% of neonates produced one or more neckteeth, but the frequencies of different morphotypes varied significantly among clones and treatments, indicating that both abiotic (temperature and photoperiod) and biotic (crowding) environmental factors affected the development of neckteeth. A characteristic S-shaped relationship between percentages of neckteethed and total juveniles per female further suggests an antipredator adaptation to high prey density. Our findings support that environmental conditions serve as proximate cues of predation risk in D. pulex contributing to the phenotypic plasticity of the neckteeth number. Pracoviště Ústav živočišné fyziologie a genetiky Kontakt Jana Zásmětová, knihovna@iapg.cas.cz, Tel.: 315 639 554 Rok sběru 2022 Elektronická adresa https://asep.lib.cas.cz/arl-cav/cs/csg/?repo=crepo1&key=3376700519
Počet záznamů: 1