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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...
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Citations
... V rámci stavovcov možno ešte spomenúť výskumy fauny drobných zemných cicavcov (DUDICH, STOLLMANN 1988, AMBROS et al. 1999, obojživelníkov (RYBANIČOVÁ 2005) a plazov, konkrétne korytnačky močiarnej (JABLONSKI et al. 2015). Z fauny bezstavovcov boli spracované najmä mäkkýše (ČEJKA et al. 2015), vážky (DAVID, 2000), dvojkrídlovce (HRABINOVÁ, BITUŠÍK 1998), chrobáky (MAJZLAN 2001(MAJZLAN , 2002 a pavúkovce, kde možno spomenúť výskumy koscov (MIHÁL, GAJDOŠ 2005) a pavúkov (GAJDOŠ 2005). Práve na výskum GAJDOŠA (2005) nadväzuje náš súčasný výskum, ktorým by sme chceli doplniť poznatky o pavúčej faune Parížskych močiarov. ...
PURGAT, P., MAJZLAN, O. & GAJDOŠ, P. 2024. Epigeic spiders (Arachnida, Araneae) of the National Nature Reserve Parížske močiare. Entomofauna carpathica, 36(1): 45-58. Abstract: In 2019-2020, we conducted research in the National Nature Reserve (NNR) Parížske močiare in southern Slovakia. The research was carried out on five different wetland sites-ecoton of the riparian zone with scrub and abandoned meadow at the canal spillway, ecoton of reed stands and mown mesophilic meadow, dense scrubby growth of willows, humid meadow and group of old willows. We used pitfall trap method to collect material. We examined 4139 spider specimens and we recorded 102 species belonging to 21 families. Totally 14 species of them are listed in Red (ecosozological) List of Spiders (Araneae) of Slovakia. Here we compared spider fauna and species richness and evaluated species composition and occurrence of threatened species in the study sites. We demonstrated the highest species richness and the highest number of rare and threatened spider species at ecotone sites.
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 than ± 250 years of local site development and hydroseral succession. Recognised changes of both water regime and floodplain habitats are based on 4 local malacozones that correspond well with the evidence of island development and land use in the past (17 – 19th century historical maps, written accounts, floristic data, respectively). In total 416 subfossil shells of Mollusca belonging to 33 taxa provide us with a picture of how the early side channel of parapotamal type gradually changed into the isolated waterbody (plesiopotamal type) and eventually transformed itself into a narrow field depression covered by forest. They also characterise a different sedimentary settings (recent vertical accretion of overbank silty loams vs. earlier subaquaceous deposition in abandoned channel). Fosssil molluscan assemblages also illustrate a change in local habitat from 1. shallow marsh with reed bed, through 2. an initial hygrophilous Salici-Populetum woodland and finally into the 3. current mesophilous type of bottomland woodland (Fraxino pannonicae – Ulmetum type). Over a study period, due to the Danube channel modifications and regulation the overbank sediment delivery decreased and became only episodical. Drop in mean groundwater levels coupled with channelisation and elimination of floods by protective levees also explains a soil successsional pathway from initial gleysol, intermediate gleyic fluvisol until the current fluvisol. Although fossil molluscan asseblages may also contain significant proportion of allochthonous shells, in our case they mainly reflect local habitats and even the presence of an agrarain enclave which existed on the island in the past.
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. The rule for selection of the records are: (i) the first record in Bohemia, Moravia or Slovakia, (ii) regionally important new rerords, (iii) records of species listed in NATURA 2000 and the national Red-lists as either critically endangered or endangered species, and (iv) currently spreading non-native species. New records are briefly commented and summarized for each species separately. Location data are published with all details in a supplementary table and are freely accessible.
The mollusc communities of the Zemplínská Šírava dam reservoir were studied in 2019. The reservoir, built in 1961–1965, is situated in the eastern part of Slovakia near the boundary with Ukraine; with its area of 33 km2 it is the second biggest dam reservoir in Slovakia. Nineteen species (13 gastropods, 6 bivalves) were recorded in the first more detailed inventory of its malacofauna. The mollusc communities in individual sites consisted of 8–14 species. The existence of littoral zone overgrown by macrophytes is important especially for populations of pulmonate snails while unionids were usually found on muddy or sandy bottom. Five non-native species were recorded. The abundant population of non-native D. polymorpha probably has a negative impact on unionids because of the shortage of suitable substrata (rocks, stones) for attachment, and as a result D. polymorpha uses shells of dead or live unionids.
