The Terrestrial Molluscan Fauna in the Slovak Part of the Danubian Lowland
Total Page:16
File Type:pdf, Size:1020Kb
The terrestrial molluscan fauna in the Slovak part of the Danubian Lowland: an annotated checklist Tom´aˇs Cejkaˇ 1 1Institute of Botany, Plant Science and Biodiversity Center, Slovak Academy of Sciences, D´ubravsk´acesta 9, SK-84523 Bratislava, Slovakia, e-mail: [email protected] August 3, 2020 Abstract. This work brings an annotated list of the terrestrial molluscan fauna from the Slovak part of the Danubian Lowland and contains a number of original findings based on field observations. Snails and slugs were collected using visual searches, snails were also sampled using leaf litter collections. Totals of 81 terrestrial gastropod species (45% of the total number of land gastropods in Slovakia) from 27 families were found in the 45 sites in the whole surveyed territory. Checklist Details of the distribution of locally scarce species are given in the following order: a number of the record (in square brackets); coordinates of the finding site; nearest municipality of the site (local name if known); habitat and the date of the last record. Most records come from the author, other collectors are named. In case the species is found in ten or fewer sites, we also give the coordinates of the sampling sites. GASTROPODA ACTEOPHILA Carychiidae Carychium M¨uller,1774 C. minimum M¨uller,1774 – widespread polyhygrophilous (strongly hygrophilous) species of the moistest habitat types (riparian habitats, wet types of floodplain forests, wet meadows). C. tridentatum (Risso, 1826) – hygrophilous species with insular distribution especially in transient and hardwood floodplain forests. STYLOMMATOPHORA Succineidae Succinea Draparnaud, 1801 S. putris (Linn´e,1758) – widespread polyhygrophilous species of the moistest habitat types (riparian habitats, wet types of floodplain forests, wet meadows). Oxyloma Westerlund, 1885 Posted on Authorea 3 Aug 2020 | The copyright holder is the author/funder. All rights reserved. No reuse without permission. | https://doi.org/10.22541/au.159620996.68925423/v2 | This a preprint and has not been peer reviewed. Data may be preliminary. 1 O. elegans (Risso, 1826) – widespread polyhygrophilous species. Succinella Mabille, 1871 S. oblonga (Draparnaud, 1801) – widespread hygrophilous species. Cochlicopidae Cochlicopa F´erussac,1821 C. lubrica (M¨uller,1774) – widespread eurytopic species, but prefers moister patches. C. lubricella (Porro, 1838) – xerotolerant species, typical for different types of xeric grassland. C. nitens (Gallenstein, 1848) – scarce species, recently known only from two sites with viable populations. Distribution data: [1 ] 47.9048°N, 17.4846°E: Bod´ıky(Kr´aˇlovsk´al´uka Nature Reserve); softwood floodplain forest, 15 May 2014; [2] 47.8230°N, 17.5905°E: village of Sap, softwood floodplain forest, 12 Jun 2012). Orculidae Granaria Held, 1838 G. frumentum (Draparnaud, 1801) – at few xeric sites at higher elevations, e.g. the elevated point bars of the paleochannels. Distribution data: [1] 47.9808°N, 17.7093°E; Ohrady (Petre); pseudo-steppe habitat on the former meander point bar; 15 Jun 2003. [2] 48.0952°N, 17.1604°E; Bratislava City (Podunajsk´eBiskupice district); 15 May 2012; [3] 48.0400°N, 17.1751°E; Bratislava City (Cunovo);ˇ forest-steppe like habitat at the gravel elevation (Crataegetum danubiale sensu Jurko 1958); 10 May 2010. Pupillidae Pupilla Fleming, 1828 P. muscorum (Linn´e,1758) – in open habitats (from xeric and wetland grassland, overgrown dam slopes etc.) P. triplicata (Studer, 1820) – recently only at one site: 47.7688°N, 18.5200°E; Cenkovsk´astepˇ Nature Reserve, feather grass steppe on a calcareous sandy substrate; 13 May 2012, 27 Sep 2014; M. Hors´akleg. Valloniidae Vallonia Risso, 1826 V. costata (M¨uller,1774) – widespread semisilvicolous species (sparse woodland sensu lato). V. enniensis (Gredler, 1856) – scarce open-country hygrophilous species: wet and waterlogged meadows; V. enniensis is an distinctive species of salt marshes. The only known recent site: 47.9555°N, 17.6880°E; Doln´y Bar (Mohyla), wet meadow with short sedges; 5 Jun 2011. V. excentrica Sterki, 1893 – probably widespread open-country species. V. pulchella (M¨uller,1774) – widespread open-country species sensu lato: xeric to wet meadows, open ruderals, dikes etc. Acanthinula Beck, 1847 A. aculeata (M¨uller,1774) – thermophilous forest species, widespread in Slovak woodland, but scarce in hardwood floodplain forests around the City of Bratislava (probably these are accidental occurrences comes Posted on Authorea 3 Aug 2020 | The copyright holder is the author/funder. All rights reserved. No reuse without permission. | https://doi.org/10.22541/au.159620996.68925423/v2 | This a preprint and has not been peer reviewed. Data may be preliminary. 2 from Small Carpathians Mts.); found only at two sites: [1] 48.1230°N, 17.1357°E; Bratislava (Petrˇzalka – Hra- biny), hardwood floodplain forest (association Fraxino Pannonicae-Ulmetum); 15 May 2010; [2] 48.1222°N, 17.1601°E; Bratislava (Ruˇzinov, Vlˇciehrdlo), degraded stand of the hardwood floodplain forest; 12 Jun 2003. Vertiginidae Columella Westerlund, 1878 C. edentula (Draparnaud, 1805) – not very frequent hygrophilous species, its occurrence is untypical for the Danube floodplain forests (probably these are accidental occurrences comes from Small Carpathians Mts.). Records are concentrated in the Bratislava hardwood floodplain forests. Truncatellina Lowe, 1852 T. cylindrica (F´erussac,1807) – open-country species: sunny dry and mesic open habitats on calcareous substrate, typically under Sedum and Artemisia (dikes and Danubian pseudo-steppe habitats, open semi- ruderal sites). Vertigo M¨uller,1773 V. antivertigo (Draparnaud, 1801) – polyhygrophilous species, scarce in the surveyed area: swampy meadows, river, ditch and pond margins, found even in regularly flooded areas. Fragmented areal in the Danubian Lowland. Distribution data: [1] 47.87335°N, 17.67124°E; Pataˇs,sedge wetland; 17 May 2012 (Cejkaˇ et al. 2014); [2] 47.88097°N, 17.64193°E; Pataˇs;a bank of the drainage ditch overgrown by tall sedges and reed. [3] 47.77161°N, 17.75238°E; C´ıˇcov,ˇ waterlogged reed stand; 15 Apr 2015. V. moulinsiana (Dupuy, 1849) – rare polyhygrophilous species. Restricted to old calcareous wetlands, marshes and fens, beds of reed, along pond shores and river or ditch banks: [1] 47.87335°N, 17.67124°E; Pataˇs,sedge wetland; 17 May 2012 (Cejkaˇ et al. 2014, 2015a); [2] 47.88097°N, 17.64193°E; Pataˇs;a bank of the drainage ditch overgrown by tall sedges and reed. V. pygmaea (Draparnaud, 1801) – relatively frequent at open habitats of very variable humidity, from dry sunny slopes with little vegetation to humid or marshy meadows. Enidae Chondrula Beck, 1837 C. tridens (M¨uller,1774) – rare xerophilous species known only from four sites in Podunajsk´arovina Low- land. Distribution data: [1] 48.03993°N, 17.17621°E, Bratislava (Cunovo,ˇ Ostrovn´el´uˇckyNature Reserve, Sparse xeric shrubland on gravel elevation (Crataegetum danubiale); 8 May 2013; [2] 47.81949°N, 18.65790°E; N´ana(V´rˇsok Nature Reserve), xeric grassland on blown calcareous sand; 7 Jun 2011; [3] 47.76961°N, 18.31906°E; Virt (MaˇsanNature Reserve), blown calcareous sand; 27 Sep 2014; [4] 47.92062°N, 18.160291°E; Nesvady (L´ıˇsˇciediery Nature Reserve); 12 Apr 2015. Merdigera Held, 1838 M. obscura (M¨uller,1774) – thermophilous species preferring deciduous forests in warmer areas, occurring mostly in lower altitudes. It also lives in the litter of drier scrubland. It is common on limestone substrates, but it is not an explicitly calciphile species. The species does not avoid human affected areas, it often occurs also in urban areas. It is a rare species in the Danube Lowland area, and it was found only in the small floodplain forest patch at Bratislava City: 48.13207°N, 17.11366°E; Bratislava, Petrˇzalka; 13 May 2015; 4 live ind. Clausiliidae Posted on Authorea 3 Aug 2020 | The copyright holder is the author/funder. All rights reserved. No reuse without permission. | https://doi.org/10.22541/au.159620996.68925423/v2 | This a preprint and has not been peer reviewed. Data may be preliminary. 3 Cochlodina F´erussac,1821 C. laminata (Montagu, 1803) – ecologically less demanding forest species, which is abundant in the Danubian Lowland, especially in hardwood floodplain forests, where it lives near trunks, under the bark and in the plant litter. Clausilia Draparnaud, 1805 C. pumila C. Pfeiffer, 1828 – the forest hygrophilous species with insular distribution. It prefers wetter types of floodplain forests, where it dwells under the litter on wet ground, under fallen trunks, to a lesser extent under their bark. Alinda H. et A. Adams, 1855 A. biplicata (Montagu, 1803) – frequent forest eurytopic species. It occurs mainly from the softwood flood- plain forests to hardwood floodplain forests near trunks and under the bark. F´erussaciidae Cecilioides F´erussac,1814 C. acicula (M¨uller,1774) – widespread species in sunlight Danubian steppes (pseudo-steppes or forest- steppes) on calcareous substrate. It inhabits upper soil layers down to 50 cm deep. C. petitiana (Benoit, 1862) – only one recent record: 48.15179°N, 17.12570°E ; Bratislava City (Karadˇziˇcova Street); mowed lawn on a busy street. Punctidae Punctum Morse, 1864 P. pygmaeum (Draparnaud, 1801) – frequently occurring species, especially in drier types of softwood and hardwood floodplain forests. It avoids regularly flooded areas. Helicodiscidae Lucilla Lowe, 1852 L. scintilla (Lowe, 1852) – a minute, blind and subterranean snail living in rootlet holes and shrinkage cracks down to depths of