Počet záznamů: 1
Longitudinal demographic study of wild populations of African annual killifish
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SYSNO ASEP 0488800 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Longitudinal demographic study of wild populations of African annual killifish Tvůrce(i) Vrtílek, Milan (UBO-W) RID, ORCID, SAI
Žák, Jakub (UBO-W) RID, ORCID, SAI
Polačik, Matej (UBO-W) RID, SAI, ORCID
Blažek, Radim (UBO-W) RID, ORCID, SAI
Reichard, Martin (UBO-W) RID, ORCID, SAI, SAICelkový počet autorů 5 Číslo článku 4774 Zdroj.dok. Scientific Reports. - : Nature Publishing Group - ISSN 2045-2322
Roč. 8, č. 1 (2018)Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova annual nothobranchius fishes ; short-lived fish ; adult sex-ratio ; life-span ; natural-populations ; senescence ; mortality ; evolution ; furzeri ; model Vědní obor RIV EG - Zoologie Obor OECD Zoology CEP GA16-00291S GA ČR - Grantová agentura ČR Institucionální podpora UBO-W - RVO:68081766 UT WOS 000427684900005 EID SCOPUS 85044210928 DOI 10.1038/s41598-018-22878-6 Anotace The natural history of model organisms is often overlooked despite its importance to correctly interpret the outcome of laboratory studies. Ageing is particularly understudied in natural populations. To address this gap, we present lifetime demographic data from wild populations of an annual species, the turquoise killifish, Nothobranchius furzeri, a model species in ageing research, and two other species of coexisting annual killifishes. Annual killifish hatch synchronously, have non-overlapping generations, and reproduce daily after reaching sexual maturity. Data from 13 isolated savanna pools in southern Mozambique demonstrate that the pools supporting killifish populations desiccated 1-4 months after their filling, though some pools persisted longer. Declines in population size over the season were stronger than predicted, because they exceeded the effect of steady habitat shrinking on population density that, contrary to the prediction, decreased. Populations of N. furzeri also became more female-biased with progressing season suggesting that males had lower survival. Nothobranchius community composition did not significantly vary across the season. Our data clearly demonstrate that natural populations of N. furzeri and its congeners suffer strong mortality throughout their lives, with apparent selective disappearance (condition-dependent mortality) at the individual level. This represents selective force that can shape the evolution of lifespan, and its variation across populations, beyond the effects of the gradient in habitat persistence. Pracoviště Ústav biologie obratlovců Kontakt Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Rok sběru 2019
Počet záznamů: 1