@CONFERENCE{MTMT:36119653, title = {Az urbanizáció hatása a kisvízfolyások makroszkopikus vízi gerinctelen együtteseinek hagyományos és jelleg-alapú diverzitási mintázataira}, url = {https://m2.mtmt.hu/api/publication/36119653}, author = {Szivák, Ildikó and Gál, Blanka and Bohus, Attila and Karádi-Kovács, Kata and Boda, Pál and Schmera, Dénes}, booktitle = {PROGRAM ÉS KIVONATOK}, unique-id = {36119653}, year = {2025}, pages = {23}, orcid-numbers = {Szivák, Ildikó/0000-0002-9873-3039} } @article{MTMT:35130699, title = {The spatial extent and the dispersal strategy of species shape the occupancy frequency distribution of stream insect assemblages}, url = {https://m2.mtmt.hu/api/publication/35130699}, author = {Szivák, Ildikó and Csabai, Zoltán Szabolcs and Schmera, Dénes and Móra, Arnold}, doi = {10.1002/ece3.11663}, journal-iso = {ECOL EVOL}, journal = {ECOLOGY AND EVOLUTION}, volume = {14}, unique-id = {35130699}, issn = {2045-7758}, abstract = {Several theoretical models have been proposed as the underlying mechanisms behind occupancy frequency distribution (OFD) patterns. For instance, the metapopulation dynamic model predicts bimodal OFD pattern indicating the dominance of dispersal processes in structuring the assemblages, while the niche‐based model predicts unimodal right‐skewed OFD pattern, and thus assemblages are driven mostly by niche processes. However, it is well known that the observed OFD pattern reflects the interplay of several other factors (e.g. habitat heterogeneity, species specificity and sampling protocol parameters). It follows that the individual contribution of each factor to the OFD pattern is rather complicated to explore. Our main objective was to examine the role of the spatial extent of the sampling and the dispersal strategies of species in shaping OFD pattern. For this, we collected samples of stream insect assemblages inhabiting near‐natural streams in the Pannon Ecoregion. We formed groups of species representing contrasting dispersal strategies (referred to as dispersal groups). Applying a computer program algorithm, we produced samples with different spatial extent. We found that with increasing spatial extent, the OFD pattern changed from bimodal to unimodal for active dispersers. Insect groups with different dispersal strategies differed in the strength of support for OFD patterns within all spatial extent. Furthermore, the strength of support for OFD patterns varied across dispersal groups differently as the spatial extent increased. Our results reflected underlying changes in mechanisms structuring assemblages along an increasing spatial extent. We also assumed that the stream insect dispersal strategy influences the relative role of dispersal and niche processes particularly as spatial extent increases from stream reaches to the extent of adjacent valleys. We could define spatial extents and dispersal strategies within which unique metacommunity processes could underlie the organisation of assemblages.}, year = {2024}, eissn = {2045-7758}, orcid-numbers = {Szivák, Ildikó/0000-0002-9873-3039; Csabai, Zoltán Szabolcs/0000-0003-1700-2574; Móra, Arnold/0000-0001-5878-8281} } @article{MTMT:34681454, title = {Long-term recovery dynamics determined by the degree of the disturbance – Ten years tracking of aquatic macroinvertebrate recolonisation after an industrial disaster (Red Sludge Disaster, Hungary)}, url = {https://m2.mtmt.hu/api/publication/34681454}, author = {Karádi-Kovács, Kata and Szivák, Ildikó and Bozóki, Tamás and Kovács, Krisztián and Móra, Arnold and Padisák, Judit and Selmeczy, Géza Balázs and Schmera, Dénes and Boda, Pál}, doi = {10.1016/j.scitotenv.2024.171071}, journal-iso = {SCI TOTAL ENVIRON}, journal = {SCIENCE OF THE TOTAL ENVIRONMENT}, volume = {921}, unique-id = {34681454}, issn = {0048-9697}, year = {2024}, eissn = {1879-1026}, orcid-numbers = {Szivák, Ildikó/0000-0002-9873-3039; Bozóki, Tamás/0009-0003-7510-3936; Kovács, Krisztián/0009-0001-7424-2876; Móra, Arnold/0000-0001-5878-8281; Padisák, Judit/0000-0001-8285-2896; Selmeczy, Géza Balázs/0000-0002-6386-2738} } @CONFERENCE{MTMT:33750743, title = {A növekvő térlépték hatása vízirovar fajegyüttesek előfordulási-gyakorisági eloszlására.}, url = {https://m2.mtmt.hu/api/publication/33750743}, author = {Szivák, Ildikó and Móra, Arnold}, booktitle = {8. Szünzoológiai Szimpózium: Program és összefoglalók}, unique-id = {33750743}, year = {2023}, pages = {25-25}, orcid-numbers = {Szivák, Ildikó/0000-0002-9873-3039} } @article{MTMT:33728597, title = {Negligible native and significant alien colonization of artificial shoreline by macroinvertebrates in a large shallow lake (Lake Balaton, Hungary)}, url = {https://m2.mtmt.hu/api/publication/33728597}, author = {Karádi-Kovács, Kata and Boda, Pál and Csabai, Zoltán Szabolcs and Deák, C. and Móra, Arnold and Szivák, Ildikó and Schmera, Dénes}, doi = {10.1007/s10750-023-05186-7}, journal-iso = {HYDROBIOLOGIA}, journal = {HYDROBIOLOGIA}, volume = {850}, unique-id = {33728597}, issn = {0018-8158}, abstract = {The aim of our study was to compare the richness and composition of macroinvertebrate assemblages in natural reed and artificial rip-rap habitats in a shallow lake 50+ years after shoreline modifications. Lake Balaton (Hungary) provided a unique study system as approximately half of its shoreline (c.105 km) has been modified. Littoral macroinvertebrates were collected in two habitat types (artificial rip-rap and natural reed) around the shoreline over two seasons. We found that native taxon richness of rip-rap habitat was only one-twentieth of the natural reed habitat. Rip-rap habitat harboured significantly more alien species. We found that the proportion of alien taxa was higher in rip-rap habitat (89.2%) than in reed habitat (16.7%). The composition of macroinvertebrate assemblages in the two habitats was also significantly different with limited to moderate overlap. Furthermore, all 8 indicator taxa of rip-rap habitat were alien, whilst all 28 indicator taxa were native in reed habitat. These results suggest that artificial engineering structure creates a novel ecosystem dominated by alien species.}, year = {2023}, eissn = {1573-5117}, pages = {1837-1848}, orcid-numbers = {Csabai, Zoltán Szabolcs/0000-0003-1700-2574; Móra, Arnold/0000-0001-5878-8281; Szivák, Ildikó/0000-0002-9873-3039} } @article{MTMT:33562173, title = {Effects of urbanization-induced local alterations on the diversity and assemblage structure of macroinvertebrates in low-order streams}, url = {https://m2.mtmt.hu/api/publication/33562173}, author = {Bohus, Attila and Gál, Blanka and Barta, Barbara and Szivák, Ildikó and Karádi-Kovács, Kata and Boda, Pál and Padisák, Judit and Schmera, Dénes}, doi = {10.1007/s10750-022-05130-1}, journal-iso = {HYDROBIOLOGIA}, journal = {HYDROBIOLOGIA}, volume = {850}, unique-id = {33562173}, issn = {0018-8158}, abstract = {Urbanization is one of the most serious threats to stream ecosystems worldwide. It is crucial to understand its effects on stream organisms as a prerequisite for the mitigation of urban degradation. Our aim was to investigate the general effects of urbanization in a moderately urbanized landscape and to assess the relationship between local environmental variables and biotic attributes of macroinvertebrate assemblages. Multiple sites at low-order streams flowing from natural forested areas to moderately urbanized landscapes were surveyed. We found that local habitat properties presented degraded conditions at urban sites. Urbanization had a negative effect on the richness and Shannon diversity of macroinvertebrate assemblages, and altered assemblage composition. Biotic assemblage parameters showed negative, neutral or positive relationships with local physical parameters. Concrete cover was one of the most important variables, which explained a decreasing richness and diversity of macroinvertebrates. In natural conditions, microhabitat-level environmental variables significantly impacted community variation, while in degraded conditions microhabitat and site-level environmental variables had a substantial impact together. Individual streams showed considerable variability under natural conditions, as well as in their response to urban effects. Subsequently, the mitigation of the effects of urbanization might also need considerable variability in the type of actions required.}, year = {2023}, eissn = {1573-5117}, pages = {881-899}, orcid-numbers = {Szivák, Ildikó/0000-0002-9873-3039; Padisák, Judit/0000-0001-8285-2896} } @CONFERENCE{MTMT:34555157, title = {Effects of urbanization-induced local alterations on the diversity and assemblage structure of macroinvertebrates in low-order streams.}, url = {https://m2.mtmt.hu/api/publication/34555157}, author = {Bohus, Attila and Gál, Blanka and Barta, Barbara and Szivák, Ildikó and Karádi-Kovács, Kata and Boda, Pál and Padisák, Judit and Schmera, Dénes}, booktitle = {36th Congress of the International Society of Limnology (SIL 100)}, unique-id = {34555157}, year = {2022}, pages = {229}, orcid-numbers = {Szivák, Ildikó/0000-0002-9873-3039} } @CONFERENCE{MTMT:33262958, title = {EFFECTS OF URBANIZATION-INDUCED LOCAL ALTERATIONS ON THE DIVERSITY AND ASSEMBLAGE STRUCTURE OF MACROINVERTEBRATES IN LOW-ORDER STREAMS}, url = {https://m2.mtmt.hu/api/publication/33262958}, author = {Bohus, Attila and Gál, Blanka and Barta, Barbara and Szivák, Ildikó and Karádi-Kovács, Kata and Boda, Pál and Padisák, Judit and Schmera, Dénes}, booktitle = {XXV. Tavaszi Szél Konferencia 2022. Absztraktkötet}, unique-id = {33262958}, year = {2022}, pages = {166}, orcid-numbers = {Szivák, Ildikó/0000-0002-9873-3039; Padisák, Judit/0000-0001-8285-2896} } @article{MTMT:31955811, title = {Importance of floodplains for water beetle diversity: a crucial habitat for the endangered beetle Graphoderus bilineatus in Southeastern Europe}, url = {https://m2.mtmt.hu/api/publication/31955811}, author = {Turić, Nataša and Temunović, Martina and Szivák, Ildikó and Herczeg, Róbert and Vignjević, Goran and Csabai, Zoltán Szabolcs}, doi = {10.1007/s10531-021-02168-w}, journal-iso = {BIODIVERS CONSERV}, journal = {BIODIVERSITY AND CONSERVATION}, volume = {30}, unique-id = {31955811}, issn = {0960-3115}, year = {2021}, eissn = {1572-9710}, pages = {1781-1801}, orcid-numbers = {Szivák, Ildikó/0000-0002-9873-3039; Herczeg, Róbert/0000-0002-5903-0082; Csabai, Zoltán Szabolcs/0000-0003-1700-2574} } @article{MTMT:31780949, title = {Tízlábú rákfajok aktuális elterjedése a Balatonban és vízgyűjtőjén}, url = {https://m2.mtmt.hu/api/publication/31780949}, author = {Weiperth, András and Czeglédi, István and Dragán, P. E. and Boross, Nóra and Erős, Tibor and Ferincz, Árpád and Gál, Blanka and Lente, Vera and Lőkkös, Andor and Lőkkösné, Kelbert B. and Specziár, András and Staszny, Ádám and Szivák, Ildikó and Takács, Péter and Vitál, Zoltán and Preiszner, Bálint}, journal-iso = {PISCES HUNGARICI}, journal = {PISCES HUNGARICI}, volume = {14}, unique-id = {31780949}, issn = {1789-1329}, year = {2020}, eissn = {3057-8876}, pages = {145-150}, orcid-numbers = {Weiperth, András/0000-0001-7824-6885; Szivák, Ildikó/0000-0002-9873-3039; Takács, Péter/0000-0001-5247-7597} }