TY - JOUR AU - Szivák, Ildikó AU - Csabai, Zoltán Szabolcs AU - Schmera, Dénes AU - Móra, Arnold TI - The spatial extent and the dispersal strategy of species shape the occupancy frequency distribution of stream insect assemblages JF - ECOLOGY AND EVOLUTION J2 - ECOL EVOL VL - 14 PY - 2024 IS - 7 PG - 24 SN - 2045-7758 DO - 10.1002/ece3.11663 UR - https://m2.mtmt.hu/api/publication/35130699 ID - 35130699 AB - 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. LA - English DB - MTMT ER - TY - JOUR AU - Karádi-Kovács, Kata AU - Szivák, Ildikó AU - Bozóki, Tamás AU - Kovács, Krisztián AU - Móra, Arnold AU - Padisák, Judit AU - Selmeczy, Géza Balázs AU - Schmera, Dénes AU - Boda, Pál TI - 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) JF - SCIENCE OF THE TOTAL ENVIRONMENT J2 - SCI TOTAL ENVIRON VL - 921 PY - 2024 PG - 15 SN - 0048-9697 DO - 10.1016/j.scitotenv.2024.171071 UR - https://m2.mtmt.hu/api/publication/34681454 ID - 34681454 N1 - Megosztott első szerzőség LA - English DB - MTMT ER - TY - CONF AU - Szivák, Ildikó AU - Móra, Arnold ED - Szivák, Ildikó ED - Takács, Péter TI - A növekvő térlépték hatása vízirovar fajegyüttesek előfordulási-gyakorisági eloszlására. T2 - 8. Szünzoológiai Szimpózium: Program és összefoglalók C1 - Tihany PY - 2023 SP - 25 EP - 25 PG - 1 UR - https://m2.mtmt.hu/api/publication/33750743 ID - 33750743 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Karádi-Kovács, Kata AU - Boda, Pál AU - Csabai, Zoltán Szabolcs AU - Deák, C. AU - Móra, Arnold AU - Szivák, Ildikó AU - Schmera, Dénes TI - Negligible native and significant alien colonization of artificial shoreline by macroinvertebrates in a large shallow lake (Lake Balaton, Hungary) JF - HYDROBIOLOGIA J2 - HYDROBIOLOGIA VL - 850 PY - 2023 IS - 8 SP - 1837 EP - 1848 PG - 12 SN - 0018-8158 DO - 10.1007/s10750-023-05186-7 UR - https://m2.mtmt.hu/api/publication/33728597 ID - 33728597 AB - 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. LA - English DB - MTMT ER - TY - JOUR AU - Bohus, Attila AU - Gál, Blanka AU - Barta, Barbara AU - Szivák, Ildikó AU - Karádi-Kovács, Kata AU - Boda, Pál AU - Padisák, Judit AU - Schmera, Dénes TI - Effects of urbanization-induced local alterations on the diversity and assemblage structure of macroinvertebrates in low-order streams JF - HYDROBIOLOGIA J2 - HYDROBIOLOGIA VL - 850 PY - 2023 IS - 4 SP - 881 EP - 899 PG - 19 SN - 0018-8158 DO - 10.1007/s10750-022-05130-1 UR - https://m2.mtmt.hu/api/publication/33562173 ID - 33562173 N1 - Research Group of Limnology, Center of Natural Sciences, University of Pannonia, Egyetem u. 10, Veszprém, 8200, Hungary Balaton Limnological Research Institute, Klebelsberg K. u. 3, Tihany, 8237, Hungary Centre for Ecological Research, Institute of Aquatic Ecology, Karolina út 29, Budapest, 1113, Hungary Doctoral School of Biology, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, 1117, Hungary Centre for Ecological Research, Institute of Aquatic Ecology, Bem tér 18/c, Debrecen, 4026, Hungary ELKH-Limnoecology Research Group, Egyetem u. 10, Veszprém, 8200, Hungary Export Date: 6 April 2023 CODEN: HYDRB Correspondence Address: Bohus, A.; Research Group of Limnology, Egyetem u. 10, Hungary; email: bohus.attila@blki.hu AB - 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. LA - English DB - MTMT ER - TY - CONF AU - Bohus, Attila AU - Gál, Blanka AU - Barta, Barbara AU - Szivák, Ildikó AU - Karádi-Kovács, Kata AU - Boda, Pál AU - Padisák, Judit AU - Schmera, Dénes TI - Effects of urbanization-induced local alterations on the diversity and assemblage structure of macroinvertebrates in low-order streams. T2 - 36th Congress of the International Society of Limnology (SIL 100) PY - 2022 SP - 229 UR - https://m2.mtmt.hu/api/publication/34555157 ID - 34555157 LA - English DB - MTMT ER - TY - CONF AU - Bohus, Attila AU - Gál, Blanka AU - Barta, Barbara AU - Szivák, Ildikó AU - Karádi-Kovács, Kata AU - Boda, Pál AU - Padisák, Judit AU - Schmera, Dénes ED - Molnár, Dániel ED - Molnár, Dóra TI - EFFECTS OF URBANIZATION-INDUCED LOCAL ALTERATIONS ON THE DIVERSITY AND ASSEMBLAGE STRUCTURE OF MACROINVERTEBRATES IN LOW-ORDER STREAMS T2 - XXV. Tavaszi Szél Konferencia 2022. Absztraktkötet PB - Doktoranduszok Országos Szövetsége (DOSZ) C1 - Budapest SN - 9786158205481 PY - 2022 SP - 166 UR - https://m2.mtmt.hu/api/publication/33262958 ID - 33262958 LA - English DB - MTMT ER - TY - JOUR AU - Turić, Nataša AU - Temunović, Martina AU - Szivák, Ildikó AU - Herczeg, Róbert AU - Vignjević, Goran AU - Csabai, Zoltán Szabolcs TI - Importance of floodplains for water beetle diversity: a crucial habitat for the endangered beetle Graphoderus bilineatus in Southeastern Europe JF - BIODIVERSITY AND CONSERVATION J2 - BIODIVERS CONSERV VL - 30 PY - 2021 SP - 1781 EP - 1801 PG - 21 SN - 0960-3115 DO - 10.1007/s10531-021-02168-w UR - https://m2.mtmt.hu/api/publication/31955811 ID - 31955811 N1 - Cited By :1 Export Date: 9 January 2023 CODEN: BONSE Correspondence Address: Turić, N.; Department of Biology, Cara Hadrijana 8/A, Croatia; email: nturic@biologija.unios.hr LA - English DB - MTMT ER - TY - JOUR AU - Weiperth, András AU - Czeglédi, István AU - Dragán, P. E. AU - Boross, Nóra AU - Erős, Tibor AU - Ferincz, Árpád AU - Gál, Blanka AU - Lente, Vera AU - Lőkkös, Andor AU - Lőkkösné, Kelbert B. AU - Specziár, András AU - Staszny, Ádám AU - Szivák, Ildikó AU - Takács, Péter AU - Vitál, Zoltán AU - Preiszner, Bálint TI - Tízlábú rákfajok aktuális elterjedése a Balatonban és vízgyűjtőjén JF - PISCES HUNGARICI J2 - PISCES HUNGARICI VL - 14 PY - 2020 SP - 145 EP - 150 PG - 6 SN - 1789-1329 UR - https://m2.mtmt.hu/api/publication/31780949 ID - 31780949 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Menczelesz, Noemi AU - Szivák, Ildikó AU - Schmera, Dénes TI - How do we construct and operate experimental streams? An overview of facilities, protocols, and studied questions JF - HYDROBIOLOGIA J2 - HYDROBIOLOGIA VL - 847 PY - 2020 IS - 1 SP - 1 EP - 10 PG - 10 SN - 0018-8158 DO - 10.1007/s10750-019-04093-0 UR - https://m2.mtmt.hu/api/publication/31099950 ID - 31099950 AB - Experimental streams are bounded and partly enclosed lotic units that facilitate the simulation of certain aspects of natural stream ecosystems under controlled conditions. We summarized the current knowledge regarding experimental streams in order to support researchers in designing and undertaking future studies using experimental streams. We observed an increase in the number of such studies since 1975. The geographically uneven distribution of studies suggests that the generalization of findings to global scale may not be straightforward. Our results indicate that macroinvertebrates, fish, and algae are the most frequently studied organisms and that the size of the experimental streams was related to the focal organism group(s) studied. The size of the units decreased over time, while the number of treatments, interpreted as the combination of the levels of factors, increased. These results suggest that biologically complex studies have gradually been replaced by biologically less complex ones. In contrast, the experimental complexity (the number of treatments) and the statistical power (number of replication) increased. Finally, we identified a number of important, but poorly documented pieces of information regarding experimental stream systems and experimental protocols and made recommendations for future research. LA - English DB - MTMT ER -