Tomáš Čejka

Tomáš Čejka
Slovak Academy of Sciences | SAV · Institute of Botany, Plant Science and Biodiversity Center

PhD

About

92
Publications
23,290
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838
Citations
Citations since 2016
34 Research Items
465 Citations
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2016201720182019202020212022020406080
2016201720182019202020212022020406080
Introduction
Education: PhD in Zoology, Faculty of Natural Sciences, Comenius University, Bratislava, Slovakia Professional Experience: ◾ Land and freshwater molluscan ecology [mainly large river floodplains, urban and agriculturally fragmented habitats] ◾ Paleoecology end environmental history [paleolimnology of large rivers, environmental archaeology] ◾ More than 20 yrs experience in monitoring of terrestrial molluscan fauna changes evoked by Gabcikovo Waterworks operation on the Middle Danube, Slovakia.
Additional affiliations
December 2015 - present
Slovak Academy of Sciences, Institute of Botany
Position
  • What is the biological value of drainage ditches? (Project leader)
December 2015 - present
Institute of Botany, Plant Science and Biodiversity Center, Slovak Academy of Sciences
Position
  • Researcher
March 2008 - September 2010
Zoological Society of London
Position
  • Multidisciplinary assessment of the functions and importance of artificial water reservoirs and their environmental management.
Description
  • Small water reservoirs, impoundments, human impact, benthos, neural networks, ecology, environmental management
Education
May 1999 - June 2003
Slovak Academy of Sciences
Field of study
  • Zoology
September 1984 - June 1988
Mendel University in Brno
Field of study
  • Zoology

Publications

Publications (92)
Article
Full-text available
This paper presents important faunistic records conducted in the Czech and Slovak Republics during 2021. In the Šumava Mts, South Bohemia, a hydrobiid snail of the genus Alzoniella was found. Monacha cantiana s. lato was genetically confirmed for the first time in the city of Bratislava, Slovakia. New sites of Cornu aspersum (Prague) and Tandonia k...
Article
Full-text available
Regular diversity surveys are important for monitoring changes in the molluscan fauna's species richness and composition in time, especially in areas of large river floodplains, which are biodiversity hotspots characterised by rapid and dynamic habitat changes. This work brings an annotated list of the terrestrial molluscan fauna from the Slovak pa...
Article
Full-text available
Molluscs of the park complex in Stupava Town (SW Slovakia). Altogether, 53 mollusc species (47 land and 6 freshwater species) have been recorded during the malacological survey of the park complex in Stupava town in 2017 − 2021. As regards the terrestrial molluscan fauna, land snail species comprised 27% of the whole terrestrial species pool known...
Article
Full-text available
In this paper we present the results of interdisciplinary study focused on mineral alluvial soil which has developed from calcareous fluvial silty loams of former Danube River side channel (location: Devín Gate, Bratislava, former Pečňa Island, SW Slovakia). Paleoenvironmental reconstruction is based on fossil molluscan assemblages and spans more t...
Article
Full-text available
This paper presents important faunistic records including location data with all details conducted in the Czech and Slovak Republics during 2020. Four new non-native species, Arion intermedius, Ambigolimax valentianus, Clathrocaspia knipowitschii and Krynickillus melanocephalus, were recorded outdoors in Slovakia. Radix lagotis was genetically conf...
Chapter
Full-text available
A total of 82 mollusc species (46 freshwater, 36 terrestrial) have been recorded at 78 sites in the Latorica Protected Landscape Area (PLA) and surrounding areas, which represents 32 % of the total species number of the Slovak molluscan fauna. The most frequent freshwater species (presence at more than 60 % of the sites) were stagnicolous species (...
Conference Paper
Full-text available
Urban areas cover only 3% of the world's land surface, but they have an enormous impact on climate, biodiversity, and land use. Land structure changes produce alterations in plant and animal species richness and evenness, in both negative and positive directions, but the urbanization process is mostly responsible for decreasing diversity and abunda...
Book
Full-text available
The monograph is a summary of a faunistic survey of the molluscan fauna within the Greater Bratislava City, which the authors obtained during field surveys in 2000–2018 at 156 sites. In addition to comprehensive faunal data, the publication also contains original knowledge about the ecology of individual species, obtained during fieldworks. The pub...
Article
Full-text available
Since the last comprehensive overview of the Czech and Slovak mollusc fauna, released in 2013, several records of species new for the countries or particular regions have appeared. In this paper, we summarize all such records and news collected in 2015-2019, including those affecting nomenclature and the national Check-lists made in 2013 and 2014....
Article
Full-text available
The Mediterranean Massylaea vermiculata (O. F. Müller) is reported from Slovakia for the first time (two sites), and from Hungary for the first time since the 1980 record. There is a reason to suspect the existence of further, yet undetected, specimens or even populations in Central Europe. Based on the dynamics of similar invasions of terrestrial...
Article
Full-text available
The main aim of this article is to summarise data on the biology and conservation of the Western Palaearctic planorbid gastropod Anisus vorticulus (Troschel, 1834). This aquatic gastropod is a threatened species at European level and endangered species in Slovakia according to IUCN red list classification. This paper also deals with comprehensive d...
Article
Full-text available
The main aim of this article is to summarise data on the biology and conservation of the Western Palaearctic planorbid gastropod Anisus vorticulus (Troschel, 1834). This aquatic gastropod is a threatened species at European level and endangered species in Slovakia according to IUCN red list classification. This paper also deals with comprehensive d...
Conference Paper
Full-text available
We hypothesize, that replacement of native tree edificators in original hardwood forest by black locust plantation hardly affects fundamental habitat conditions and consequently species diversity of biocoenosis. To verify the hypothesis we selected plain area along small stream with homogeneous habitat conditions originally covered by native hardwo...
Article
Full-text available
The Gabčíkovo Water Project, a major construction of damming and canalizing on the upper part of the middle Danube, significantly changed hydrological regime of the Danube inland delta, destroyed or affected most of the 230 km² of wetlands and directly disrupted the original and unique ecosystem along a 37 km long river stretch. The aim of this stu...
Article
Full-text available
So far, Pisidium tenuilineatum has been reported from Slovakia only from four sites. Six new sites of this pea mussel have been found during the last twenty years in Slovakia in both small karstic watercourses (e.g. rivulets, brooks and small rivers) and large lowland rivers. These new records show that P. tenuilineatum should be still considered a...
Article
Full-text available
A total of 56 species (36 gastropods, 20 bivalves) have been found, which is 69% of the total species number of freshwater molluscan fauna in the country. Species richness varied from 5 to 35 snail species, with a median value of 12 species. The most frequent species (presence at more than 60% of the sites) were Bithynia tentaculata (89.8%), Lymnae...
Article
Full-text available
The paper presents results of analyses of various types of organic remains recovered from a waterlogged fill of the sunken structure from Hurbanovo (SW Slovakia) dated to the Early Roman period (1st and 2nd century AD). The structure represents a unique find – the only archaeological feature with waterlogged infill at the site and one of nine known...
Article
Full-text available
Drainage canals or ditches are man-made watercourses. Their zooplankton fauna is often neglected as these environments are not an optimal habitat for this community. Within a comparative environmental study, we explored zooplankton assemblages in 12 agricultural drainage ditches, in the Žitný Ostrov. A total of 58 species of zooplankton crustaceans...
Poster
Full-text available
The research of the Czech and Slovak mollusc fauna has a long tradition spanning the last 150 years. Particularly, in the last two decades, existing records were put in databases and distributional maps for most species are available on-line. The journal Malacologica Bohemoslovaca, which focuses on publishing faunistic studies from Europe, has been...
Article
Full-text available
This study deals with the molluscan fauna of the Hostýnské vrchy Hills (Central Moravia, Czech Republic). The main goal was to make a systematic inventory of the molluscan fauna in this area. Snails were collected in September 2010 by hand picking and litter sampling at selected sites. Final database was pooled with earlier published and unpublishe...
Article
Full-text available
New records of an introduced peacock fly Callopistromyia annulipes (Macquart, 1855) from 19 localities in Slovakia are presented.
Article
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Revisory research of floral and animal assemblages from the Neanderthal site of Gánovce-Hrádok confirmed the previous stratigraphic division of the travertine mound to five horizons on the basis of different petrological and palaeontological contents, indicating climatic and palaeoenvironmental changes in the vicinity, from the Saalian termination...
Article
Full-text available
Revisory research of floral and animal assemblages from the Neanderthal site of Gánovce-Hrádok confirmed the previous stratigraphic division of the travertine mound to five horizons on the basis of different petrological and palaeontological contents, indicating climatic and palaeoenvironmental changes in the vicinity, from the Saalian termination...
Article
Full-text available
The importance of macroclimate and dispersal limitation in the broad-scale variation of European urban land snail assemblages is likely to differ between native and non-native species because of the southern origin of many non-native snails, often spread by humans. We sampled land snails in each of 32 European cities and compiled from the literatur...
Article
Full-text available
In 2004 – 2015, we conducted a malacological survey at 12 sites of wind-blown sand in the Danubian lowland. During the fieldwork, we used conventional methods of sampling; mostly individual searching and litter sieving. At each site, one person have collected snails for one hour. A total of 22 species were found in the whole surveyed territory. The...
Data
Full-text available
The current version of the check-list follows Horsák et al. (2013) with up-to-date modifications supplemented with a reference. Distribution map for each species was constructed based on published data and our knowledge based on unpublished records. So far 251 species of molluscs, including 223 species of gastropods (51 aquatic and 172 terrestrial)...
Article
Full-text available
Tandonia kusceri (Wagner, 1931) is reported from Slovakia for the first time. The slug was found in the Ružinov and Petržalka housing estates, Bratislava, in 2014 and 2015, respectively. Our observations suggest that the species is well established in the Slovak capital. This finding calls for verification of some of the older reports of a similar...
Article
Full-text available
In stream corridors, driftwood represents mainly a dead vegetation biomass and diverse artificial material relocated along a stream by flooding. Most driftwood can contain empty molluscan shells or a minor proportion of live individuals (i.e. molluscan allocoenoses). Drifted material is important for spreading of fauna and flora. Molluscan allocoen...
Article
Full-text available
In the autumn of 2014, we conducted a malacological survey at 23 freshwater bodies in the Danubian lowland, SW Slovakia. We aimed to conduct a malacological inventory of semi-natural sites of a high conservation value. During the fieldwork, we used conventional methods of sampling; mostly sweeping by a hemispherical metal kitchen strainer from both...
Article
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A numerous population of the Turkish snail (Helix lucorum L.) (Mollusca: Gastropoda) has been found for the first time in the Slovak Republic (Bratislava City, April 2013).
Article
Full-text available
Šírenie a existencia druhov mimo ich domoviny sa stáva celosvetovým problémom a týka sa takmer všetkých skupín organizmov. Rovnaké javy sa preto často nazývajú rôznymi menami, zatiaľ čo jeden a ten istý výraz sa môže aplikovať na rôzne javy. Pre medzinárodnú aj medziodborovú komunikáciu je nutné zjednotenie tejto terminológie. Doteraz najvýraznejší...
Article
Full-text available
Forested scree slopes represent one of the types of shallow subterranean habitats characterised by several unique traits, such as close contact with the soil surface, better availability of organic matter, and lower seasonal fluctuations in microclimate. Relatively varied assemblages of gastropods were collected using a series of subterranean traps...
Article
Full-text available
Until 2013, no published records of the Desmoulin's whorl snail (Vertigo moulinsiana) were known from the Danube lowland in the Slovak Republic. In this paper we present the first record of the Desmoulin's whorl snail in this area, and report the site conditions and the structure of accompanying land snail community. The site was examined by visual...
Article
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This contribution introduces a professional and human profile of the leading Slovak malacologist Jozef Šteffek, which has sadly passed away in April 2013. A bibliography of his abundant work (yrs 1976–2013) is also included.
Article
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The effects of non-native species invasions on community diversity and biotic homogenization have been described for various taxa in urban environments, but not for land snails. Here we relate the diversity of native and non-native land-snail urban faunas to urban habitat types and macroclimate, and analyse homogenization effects of non-native spec...
Data
List of native and alien species recorded in 32 Central European cities; numbers of plots and cities with the species presence are given. (PDF)
Article
Full-text available
The paper brings a review of a long-term malacological survey of fragmented urban alluvial woodland, an important refuge of Middle-Danubian terrestrial molluscan fauna. In the area of Bratislava agglomeration we surveyed two softwood and 26 hardwood alluvial forests. Altogether, 52 mollusc species have been recorded during the last 20 years (repres...
Conference Paper
Full-text available
The loessic hilly lands in the Danube Basin (Slovakia) are characterised by favourable climatic conditions, smooth topography, fertile soils and a long land-use history. In a 28 ha large zero-order catchment (Voderady) differentiation of Chernozem cover was studied based on 219 soil augerings and 4 trenches. Severe erosion on the hillslopes was det...
Article
Full-text available
The research was focused on the impact of the small dams on the structure and ecological parameters of the permanent macrozoobenthos community in the inflow and outflow of these dams. The quantitative samples were taken in the inflow, outflow and littoral zone of the reservoir Doľany, Suchá nad Parnou, Dolné Dubové, Kuchyňa, Lozorno and Vývrat from...
Article
Full-text available
Aim Urbanization is associated with strong changes in biodiversity, but the diversity of plant and animal assemblages varies among urban habitats. We studied effects of urban habitats on the diversity of vascular plants and land snails in 32 large cities. Location Central Europe, Belgium and the Netherlands. Methods The species composition of all v...
Article
Full-text available
The survey presents the molluscan fauna from six impoundment systems of two sides (NW and SE) of the Small Carpathians. Altogether 25 species (15 gastropod and 10 bivalve) species were identified in reservoirs and their subsystems (inflows and outlets). The number of species per site ranged from 2 to 12, the mean number of species per site was 7. T...
Article
Aim It is generally believed that communities of small organisms, or those with small propagules, are structured mainly by local niche-based processes, and less by dispersal limitation. Conversely, weaker environmental and stronger spatial structure, indicating dispersal limitation, are expected to occur more frequently in communities of large orga...
Article
Full-text available
City parks represent fragments of natural habitats often with altered pro­perties. We were curious how many molluscan species a historic castle garden may host, what is the composition of such community and whether there are endangered or rare species present in such habitat. We sampled eight different habitat types in the Frederiksborg Castle Gard...
Article
Full-text available
Paleofloristic and paleofaunistic analysis of Dudváh River oxbow and implication for Late Holocene paleoenvironmental development of the Žitný ostrov Island (SW Slovakia) Žitný ostrov, the largest island of the Danube River (SW Slovakia) gained its present shape in the Neoholocene period. As a result of increased flood and geomorphological Danube r...
Article
Full-text available
Pupilla pratensis (Clessin, 1871) was recently confirmed as a distinct species based on morphological, ecological and molecular evidence. The main purpose of this study is to publish the first reliable data on the occurrence of P. pratensis in the Czech Republic and Slovakia. The second goal is to analyse conchometry of P. pratensis, P. muscorum (L...
Article
Full-text available
In this paper we provide a new list of all the mollusc species recorded outdoors in the Czech and Slovak Republics. This work is a supplement of the Ložek’s key on molluscs of the former Czechoslovakia. For the species recorded after the publishing of the book, publications of their first records in the Czech and Slovak Republics are given. Species...
Article
Full-text available
Moisture along with available calcium content are the major environmental factors controlling species richness and composition of the terrestrial molluscan fauna. In the present study, we focused on snails in a floodplain forest and their response on humidity. We described the model of response and calculate the humidity optima of particular specie...
Poster
Full-text available
Diversity of Central European urban land snails
Conference Paper
Full-text available
č Impact of the wind disaster in High Tatras on 19 November 2004 on molluscs and Carabids was studied in six plots ranging from an intact mature spruce forest, through damaged forests with timber letin situ, four plots with extracted timber, among which two plots were additionally affected by fire. The molluscs reacted on the increasing damaging of...
Article
Full-text available
The purpose of this paper is to summarise up-to-date information on the ecology and distribution of Vertigo angustior, V. geyeri, and V. moulinsiana in Slovakia. V. moulinsiana is an inhabitant of both treeless calcareous-fens and calcium-rich sedge marshes situated in warm lowland regions. V. angustior occurs in various types of habitats (i.e. dif...
Article
Full-text available
Previously only one species of the genus Lucilla was reported from the Czech and Slovak Republics. Since this taxon is currently considered as two distinct species (L. singleyana and L. scintilla), a revision of older Czech and Slovak records was needed. The revision of available voucher material yielded findings of both species in Slovakia, contra...
Article
Full-text available
The checklist of 245 mollusc species known so far from the Slovak Republic is presented, plus 11 species limited to greenhouses or thermal waters. Critical comments on species erroneously mentioned in recent publications from Slovakia are included.