2012
Life-history traits controlling the survival of Tillaea aquatica: a threatened wetland plant species in intensively managed fishpond landscapes of the Czech Republic
ŠUMBEROVÁ, Kateřina, Michal DUCHÁČEK and Zdeňka LOSOSOVÁBasic information
Original name
Life-history traits controlling the survival of Tillaea aquatica: a threatened wetland plant species in intensively managed fishpond landscapes of the Czech Republic
Authors
ŠUMBEROVÁ, Kateřina (203 Czech Republic, guarantor), Michal DUCHÁČEK (203 Czech Republic) and Zdeňka LOSOSOVÁ (203 Czech Republic, belonging to the institution)
Edition
Hydrobiologia, Holandsko, Springer Netherlands, 2012, 0018-8158
Other information
Language
English
Type of outcome
Article in a journal
Field of Study
10600 1.6 Biological sciences
Country of publisher
Netherlands
Confidentiality degree
is not subject to a state or trade secret
Impact factor
Impact factor: 1.985
RIV identification code
RIV/00216224:14410/12:00059855
Organization unit
Faculty of Education
UT WoS
000303591200008
Keywords (in Czech)
stanovištní ekologie; půdní semenná banka; šíření semen
Keywords in English
habitat ecology; soil seed bank; seed dispersal
Tags
International impact, Reviewed
Changed: 11/2/2013 18:33, doc. RNDr. Zdeňka Lososová, Ph.D.
V originále
Tillaea aquatica (Crassulaceae) is considered as annual wetland species threatened by changes in land use and progressing eutrophication in large part of its European distribution range. We summarised the historical and recent data on this species, and analysed its distribution and associated habitat changes in the Czech Republic. We used permanent plots as well as seed bank and seed dispersal studies to obtain better insight into the plant’s survival strategy. During the second half of the twentieth century T. aquatica disappeared from most historical localities situated mainly in large fishponds. After 1999, altogether 18 new populations were found in small fry ponds and other fish-farming ponds. The largest populations of Tillaea were found in ponds with long-term bottom exposure where the vegetation of perennial herbs was eliminated by herbicides or grazing. Propagules easily dispersible by water, on gumboots or tyres of vehicles, and longterm soil seed bank also might contribute to persistence of the species in the habitats, diminishing the chance of extinction. As the fishpond management has changed, and so have done the original habitats of Tillaea, the species could survive in habitats different from those in the past. In this article, we suggest management measures aimed at promoting survival of Tillaea under new circumstances.
In Czech
Tillaea aquatica (Crassulaceae) je jednoletý mokřadní druh ohrožený změnami v hospodaření, postupující eutrofizací ve velké části svého evropského areálu. Shrnuli jsme historická a současná data o tomto druhu a analyzovali jsme jeho rozšíření v závislosti na změnách biotopů v České republice. Studovali jsme populace na trvalých plochách, v půdní semenné bance a schopnosti šíření semen. V druhé polovině 20. století T. aquatica zmizela z většiny historických lokalit. Po roce 1999 bylo nalezeno 18 nových lokalit vesměs na dnech malých chovných rybníků a sádek.
Links
| MSM0021622416, plan (intention) |
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