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The stabilizing effect of resting eggs banks of the Daphnia longispina species complex for longitudinal taxon heterogeneity in long and narrow reservoirs
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SYSNO ASEP 0343442 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The stabilizing effect of resting eggs banks of the Daphnia longispina species complex for longitudinal taxon heterogeneity in long and narrow reservoirs Tvůrce(i) Vaníčková, I. (CZ)
Seďa, Jaromír (BC-A) RID
Petrusek, A. (CZ)Zdroj.dok. Hydrobiologia. - : Springer - ISSN 0018-8158
Roč. 643, č. 1 (2010), s. 85-95Poč.str. 11 s. Akce International Symposium on Cladocera /8./ Datum konání 21.10.2008-25.10.2008 Místo konání Aguascalientes Země MX - Mexiko Typ akce WRD Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Daphnia ; resting eggs ; ephippia ; canyon-shaped reservoir ; hybridization Vědní obor RIV DA - Hydrologie a limnologie CEP IAA600960901 GA AV ČR - Akademie věd GA206/04/0190 GA ČR - Grantová agentura ČR 1QS600170504 GA AV ČR - Akademie věd CEZ AV0Z60170517 - HBU-Z, BC-A (2005-2011) UT WOS 000276256500012 DOI 10.1007/s10750-010-0126-x Anotace We compared the spatial distribution of the Daphnia longispina complex (D. longispina, D. galeata, D. cucullata, and their hybrids) in the active water column community and in resting egg banks in five long narrow reservoirs in the Czech Republic. Ephippia abundance in the sediments significantly increased in the downstream direction and similarly to the active zooplankton community, in which D. cucullata and D. longispina tended to occur at opposite ends of the reservoirs, taxa of resting eggs revealed a spatially diversified pattern. High relative abundances of hybrids (up to 16% of resting eggs, and 74% of Daphnia in the water column) confirm that interspecific hybridization is frequent in reservoirs, and some hybrids are successfully compete with the parents. We assume that the spatial heterogeneity of Daphnia taxonomic composition in reservoirs, being affected by the seasonal selection of taxa, is substantially strengthened by the presence of spatially heterogeneous egg banks. Pracoviště Biologické centrum (od r. 2006) Kontakt Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Rok sběru 2011
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