LAND SNAIL ASSEMBLAGES OF OLD LIMESTONE AND IRON QUARRIES (JAHODNA HILL NEAR TRINEC, CZECH REPUBLIC)

2011 ◽  
Author(s):  
Klara Herzogova
Keyword(s):  
Czech Republic ◽  
Land Snail

History of two critically endangered grassland snails (Pulmonata: Helicellinae) in the Czech Republic with first molecular data on extinct populations

Biologia ◽  
2015 ◽  
Vol 70 (8) ◽  
Author(s):  
Ondřej Korábek ◽  
Lucie Juřičková ◽  
Vojen Ložek
Keyword(s):  
Czech Republic ◽  
Land Snail ◽  
Molecular Data ◽  
Critically Endangered ◽  
Rrna Gene ◽  
Relict Species ◽  
The Czech Republic ◽  
The Holocene ◽  
Western Palearctic ◽  
The One

AbstractThe composition of the land snail fauna of central Europe is responsive to environmental conditions and undergoes changes throughout the Holocene. That holds also for the fauna of central-European Helicellinae, a group of dry-adapted western Palearctic snails with five species living in the Czech Republic. While one of them is currently spreading in the country, two, Candidula unifasciata and Helicopsis striata, are critically endangered, both with only a single surviving population. Although sharing a similar fate lately, these two species represent completely different histories. While C. unifasciata is a rather recent immigrant in the area, H. striata is a relict species of the Pleistocene loess steppe, which is declining during the Holocene. However, the origin of the only known extant Czech population of H. striata is deemed to be dubious due to the untypical habitat inhabited, and within C. unifasciata two species or subspecies used to be distinguished, suggesting a dual origin of its populations. We present here sequences of a fragment of the 16S rRNA gene from two extinct and the last surviving populations of H. striata, and from two extinct populations of C. unifasciata from Bohemia, supplemented by Slovak samples of both. The obtained haplotypes of Bohemian C. unifasciata are different from the one found in western Slovakia, suggesting a different origin of the Western Carpathian populations. The sampled extinct Bohemian populations of H. striata shared an identical haplotype with the last living population, supporting native origin and conservation value of the latter. The causes of the disappearance of the two species are discussed

scholarly journals Šíří se suchobytka přehlížená, Cernuella neglecta (Draparnaud, 1805), v České republice? [Is the Dune Snail Cernuella neglecta (Draparnaud, 1805) spreading in the Czech Republic?]

2011 ◽  
Vol 10 ◽  
pp. 45-47
Author(s):  
Dagmar Říhová ◽  
Alena Peltanová ◽  
Lucie Juřičková
Keyword(s):  
Czech Republic ◽  
Urban Areas ◽  
Land Snail ◽  
Snail Species ◽  
The Czech Republic ◽  
European Origin

In 2010, several new sites of the dune snail Cernuella neglecta (Draparnaud, 1805) were documented relatively far from their previously known sites in the Czech Republic. Cernuella neglecta was found at these new sites in front of villas, on dry ruderal meadows and in urban areas. The anthropic origin of those populations is probable. C. neglecta is another land snail species of southern European origin that is spreading to the new sites during last few years.

The lost paradise of snails: Transformation of the middle-Holocene forest ecosystems in Bohemia, Czech Republic, as revealed by declining land snail diversity

The Holocene ◽  
2020 ◽  
Vol 30 (9) ◽  
pp. 1254-1265 ◽  
Author(s):  
Lucie Juřičková ◽  
Petr Šída ◽  
Jitka Horáčková ◽  
Vojen Ložek ◽  
Petr Pokorný
Keyword(s):  
Czech Republic ◽  
Bronze Age ◽  
Late Holocene ◽  
Sedimentary Environment ◽  
Land Snail ◽  
Land Snails ◽  
Anthropogenic Pressure ◽  
Middle Holocene ◽  
Mollusc Assemblages ◽  
Wet Climate

We studied the transformation of a middle-to-late Holocene forested ecosystem using the highly indicative remains of land snails. The study areas were sandstone landscapes of northern Bohemia (Czech Republic) that provide extremely rich terrestrial fossil records. As far as we know, nowhere else in the world does such a type of sedimentary environment provide Holocene records of snail shells. Currently, these sandstone landscapes are covered by low productivity coniferous forests with very low species pools. In sharp contrast, in the middle Holocene, they were dominated by species-rich productive woodland communities. Such ecosystems were then supported by a favourable warm and wet climate and by nutrient-rich, calcareous substrata formed of late Pleistocene aeolian dust (loess). A radical transformation of this temporal ecological equilibrium began in the third millennium BC. Over the next millennia, the species-rich canopy forest mollusc assemblages almost completely disappeared, together with calciphilous rock dwellers. The main driving force of this transformation was gradual soil leaching that resulted in the loss of calcium carbonate and principal nutrients (like P and N) and subsequent ecosystem retrogression. Synergistically with this background trend, the unstable climatic regime of the late Holocene, along with long-term anthropogenic pressure that peaked for the first time during the late Bronze Age, accelerated the transformation.

scholarly journals Arion alpinus Pollonera, 1887 in the Czech Republic (Gastropoda: Arionidae)

2006 ◽  
Vol 5 ◽  
pp. 51-55
Author(s):  
Libor Dvořák ◽  
Thierry Backeljau ◽  
Peter L. Reischütz ◽  
Michal Horsák ◽  
Karin Breugelmans ◽  
...  
Keyword(s):  
Czech Republic ◽  
Forest Ecosystems ◽  
Dna Analysis ◽  
Continuous Distribution ◽  
Land Snail ◽  
Distribution Range ◽  
The Czech Republic ◽  
European Distribution ◽  
Distribution And Ecology

The first records of the pulmonate land snail Arion alpinus in the Czech Republic are presented and the European distribution and ecology of this species are discussed. A. alpinus occurs in forest ecosystems in the southern part of the Czech Republic at the margin of its continuous distribution range. Both externally and anatomically the Czech Republican specimens strongly resemble A. alpinus from neighbouring countries. Identification was confirmed by DNA analysis.

scholarly journals First record of Chondrina clienta (Westerlund, 1883) from Bohemia (Czech Republic)

2005 ◽  
Vol 4 ◽  
pp. 39-40
Author(s):  
Michal Horsák ◽  
Jiří Novák
Keyword(s):  
Czech Republic ◽  
First Record ◽  
Land Snail ◽  
First Time

The occurrence of land snail Chondrina clienta (Westerlund, 1883) (Gastropoda: Chondrinidae) from Bohemia (Czech Republic) is reported for the first time.

scholarly journals Subulina octona (Bruguière, 1798) – a new greenhouse species for the Czech Republic (Mollusca: Gastropoda: Subulinidae)

2006 ◽  
Vol 5 ◽  
pp. 1-2
Author(s):  
Lucie Juřičková
Keyword(s):  
Czech Republic ◽  
Land Snail ◽  
The Czech Republic ◽  
First Time

The occurrence of land snail Subulina octona (Bruguière 1798) (Gastropoda: Subulinidae) is reported from the Czech Republic greenhouse for the first time. Molluscan communities of two new Bohemian greenhouses are characterized.

The spread of non-native Cepaea nemoralis and Monacha cartusiana (Gastropoda: Pulmonata) in the Czech Republic with comments on other land snail immigrants

Biologia ◽  
2012 ◽  
Vol 67 (2) ◽  
Author(s):  
Alena Peltanová ◽  
Libor Dvořák ◽  
Lucie Juřičková
Keyword(s):  
Climate Change ◽  
Czech Republic ◽  
Land Snail ◽  
Range Extension ◽  
Snail Species ◽  
Passive Dispersal ◽  
The Czech Republic ◽  
Cepaea Nemoralis ◽  
Increasing Trend ◽  
Indigenous Land

AbstractThe aim of our study is to describe and visualise the spread of two non-indigenous land snail species Cepaea nemoralis and Monacha cartusiana in the Czech Republic during more than 100 years period. Several factors play an important role in changes of the distribution of these species: ecological (climate change), ethological (passive dispersal potencial) and economic (increasing traffic as a vector of spreading). The spreading of M. cartusiana has a rapidly increasing trend. More than half sites in the Czech Republic were colonised by this species in 2000–2010. While the spread of C. nemoralis has been continuous during the last century, the rapid range extension was recorded in the last two decades.

scholarly journals Poznámky k ekologii, rozšíření a ochraně vřetence horského (Pseudofusulus varians) v České republice [Notes to the ecology, distribution and protection of Pseudofusulus varians in the Czech Republic]

2011 ◽  
Vol 10 ◽  
pp. 18-23
Author(s):  
Adam Lacina
Keyword(s):  
Czech Republic ◽  
Dead Wood ◽  
Human Impacts ◽  
Land Snail ◽  
Snail Species ◽  
Forest Patches ◽  
Relict Species ◽  
The Czech Republic ◽  
Clear Cutting ◽  
Atlantic Period

Pseudofusulus varians (C. Pfeiffer, 1828) is one of the most endangered land snail species in the Czech Republic. It is a relict species from Atlantic period of the Holocene, inhabiting exclusively nature beech and scree forests. Originally it was known from 16 sites in the Krušné Hory Mts. (Ore Mts.) (NW Bohemia, Czech Republic) and one site in the Moravskoslezské Beskydy Mts. (East Moravia, Czech Republic). The occurrence of the snail was recently confirmed only at seven sites in the Krušné Hory Mts. Remaining sites were destroyed due to human impacts, mainly acid rains and insensive forest management. Therefore its populations survived only in forest patches hidden in hardly accessible places. P. varians is strictly dendrophilous species, so the main threat is dead wood removing and clear cutting. As it is endangered in the whole Europe (Austria, Croatia, Germany, Slovakia and the others), it is very important to protect its modern sites.

scholarly journals A new record of Oxychilus alliarius (Gastropoda: Zonitidae) with the species distribution in the Czech Republic

2009 ◽  
Vol 8 ◽  
pp. 63-65
Author(s):  
Jitka Horáčková ◽  
Lucie Juřičková
Keyword(s):  
Czech Republic ◽  
Species Distribution ◽  
New Record ◽  
Land Snail ◽  
Snail Species ◽  
The Czech Republic ◽  
European Species ◽  
New Information ◽  
New Finding ◽  
West European

A new finding of the land snail species Oxychilus alliarius was recorded in the Czech Republic. This West European species was found in the six isolated sites during the last thirteen years always in western part of Bohemia. This paper brings new information on the distribution of Oxychilus alliarius in the Czech Republic.

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