TY - JOUR AU - Szabó, Zoltán AU - Buczkó, Krisztina AU - Korponai, János AU - Luoto, T AU - Begy, RCs AU - Haliuc, A AU - Veres, D AU - Hamerlik, L AU - Csorba, R AU - Zsigmond, AR AU - Darabos, Gabriella AU - Méhes, Nikoletta AU - Kövér, Csilla AU - Magyari, Enikő Katalin TI - Two chironomid-inferred mean July air temperature reconstructions in the South Carpathian Mountains over the last 2000 years JF - HOLOCENE J2 - HOLOCENE VL - In press PY - 2024 SN - 0959-6836 DO - 10.1177/09596836241236353 UR - https://m2.mtmt.hu/api/publication/34753315 ID - 34753315 AB - We present chironomid-based reconstructions of mean July air temperature changes over the last 2000 years from Lake Latoriței (1530 m a.s.l.) in the Southern Carpathians. A multi-proxy analysis was performed along a 58 cm long sediment core and two training sets were used for quantitative July air temperature reconstructions: the Eastern-European (EE, 212 lakes) and the Finnish-Polish-Carpathian (FPC, 273 lakes). The transfer functions had a coefficient of determination (r2) 0.88 and 0.91 with a root mean squared error of prediction (RMSEP) 0.88°C and 1.02°C. Despite possible biases resulting from methodological problems and the ecological complexity of the chironomid response to both climatic and environmental changes, the agreement of the temperature reconstruction of Lake Latoriței with other alpine records suggests that the transfer function successfully reconstructed past summer temperatures between 750 and 1830 CE. Biases in the temperature reconstruction in the period before 750 and after 1830 CE were likely caused by increased abundance of rheophilic and semi-terrestrial chironomid species related to increased inflow activity before 750 CE and local land use changes after 1830 CE, which was also indicated by increasing deforestation and increasing lake productivity in the pollen and diatom records. Our results suggest that the region experienced a warm period between 750 and 1360 CE, and a cold period between 1360 and 1600 CE followed by fluctuating summer temperatures until 1830 CE. These events were associated with the so-called ‘Mediaeval Warm Period’ (MWP) and the ‘Little Ice Age’ (LIA), respectively. The inference models reconstructed a decrease in July air temperatures by 0.7°C–1.1°C during the LIA relative to the warmer MWP. We also demonstrated that the FPC training set gives better results, supporting that local/continental training sets are efficient to detect weak amplitude summer temperature changes in the Late-Holocene. LA - English DB - MTMT ER - TY - JOUR AU - Buczkó, Krisztina AU - Ács, Éva AU - B-Béres, Viktória AU - Kovács, Tibor AU - Stenger-Kovács, Csilla TI - The first sign of Surirella tientsinensis (Surirellaceae, Bacillariophyceae) spreading in the Carpathian region JF - STUDIA BOTANICA HUNGARICA J2 - STUD BOT HUNG VL - 54 PY - 2023 IS - 2 SP - 105 EP - 112 PG - 8 SN - 0301-7001 DO - 10.17110/StudBot.2023.54.2.105 UR - https://m2.mtmt.hu/api/publication/34740395 ID - 34740395 AB - A characteristic, panduriform, large (ca 80 μm in length) diatom was sporadically detected in the Hungarian rivers in 2021 and 2022. Surirella tientsinensis Skvortzov emend. Liu was regarded as an Asian endemic species practically from its description until the second decade of the 21st century. Here we present the first Hungarian occurrence of the taxon from 2021, which is the second record for Europe, aft er the previously published Ukrainian data. In 2022 Surirella tientsinensis was detected from two other Hungarian river sampling localities. Due to the unmistakable outlook of the species, probably it is a new member of the Hungarian diatom flora, and its parallel occurrences in some localities within a short time, is noteworthy. LA - English DB - MTMT ER - TY - JOUR AU - Török-Krasznai, Enikő AU - Nemes-Kókai, Zsuzsanna AU - Buczkó, Krisztina AU - B-Béres, Viktória TI - SOME TERRESTRIAL ALGAE ON THE SURFACE OF BUILDINGS IN DEBRECEN, HUNGARY JF - STUDIA BOTANICA HUNGARICA J2 - STUD BOT HUNG VL - 54 PY - 2023 IS - 2 SP - 113 EP - 123 PG - 11 SN - 0301-7001 DO - 10.17110/StudBot.2023.54.2.113 UR - https://m2.mtmt.hu/api/publication/34569370 ID - 34569370 LA - English DB - MTMT ER - TY - BOOK ED - Ács, Éva AU - Ács, Éva AU - Bíró, Tibor AU - Buczkó, Krisztina AU - Duleba, Mónika AU - Földi, Angéla AU - Kiss, Keve Tihamér AU - Orgoványi, Péter AU - Trábert, Zsuzsa TI - Képes útmutató Magyarország leggyakoribb bevonatlakó kovaalgáihoz (Bacillariophyceae) PB - Ludovika Egyetemi Kiadó CY - Budapest PY - 2023 SP - 450 SN - 9786156598226 UR - https://m2.mtmt.hu/api/publication/34224787 ID - 34224787 AB - A könyv, amelyet az Olvasó a kezében tart, Magyarország leggyakoribb bevonatlakó kovaalgáit bemutató határozási segédlet, amelynek elkészítését az a 2019-ben és 2020-ban zajló országos felmérés tette lehetővé. Ennek során többek között olyan felszíni vizekből gyűjtöttünk mintákat, amelyeket korábban egyáltalán nem vizsgáltak. Az összeállításban csak azok a taxonok kaptak helyet, amelyek ezen felmérés során legalább egy mintában dominánsak voltak (relatív egyedszámuk elérte az 5%-ot). A könyv megírásával a felszíni vizeknek az Európai Unió Víz Keretirányelve (EU VKI) által előírt ökológiai állapotértékelését kívántuk segíteni azáltal, hogy a bevonatban előforduló legfontosabb taxonokhoz határozási segédletet nyújtunk. Mivel az EU VKI a felszíni vizek monitorozása során a fénymikroszkóp használatát írja elő, így jelen munkában mi is alapvetően a fénymikroszkópos bélyegekre fókuszáltunk, de ahol a határozást az ultrastrukturális bélyegek megismerése is segítheti, ott pásztázó elektronmikroszkópos képeket is közöltünk. LA - Hungarian DB - MTMT ER - TY - JOUR AU - Binti Mahadi, Izzati Hanun AU - Báldi, Katalin AU - Korponai, János AU - Buczkó, Krisztina TI - Diatom-based paleoenvironmental reconstruction in Lake Balaton, Hungary (Tó34f) JF - STUDIA BOTANICA HUNGARICA J2 - STUD BOT HUNG VL - 54 PY - 2023 IS - 1 SP - 5 EP - 38 PG - 34 SN - 0301-7001 DO - 10.17110/StudBot.2023.54.1.5 UR - https://m2.mtmt.hu/api/publication/34210675 ID - 34210675 AB - A high-resolution diatom assemblage’s database was built on a 65 cm long sediment core (Tó34f), obtained from the Siófok Basin of Lake Balaton in 2017. Light microscope photo-documentation was developed out of 15,797 diatom valves. The pictures were arranged according to taxonomy from centric diatoms via araphids, monoraphids to biraphid forms. 30 categories were established to group the diatom taxa instead of species level identification requiring high level of expertise. Some (1) characteristic, and easily identifiable taxa (Karayevia clevei, Cavinula scutelloides) were distinguished on species level, (2) taxa were grouped at genus level (like Amphora, Aulacoseira, Neidium), while (3) were joined based on their morphological features. Two large groups were created based on this approach, the “light fragilarioids” and the “heavy fragilarioids”. Both groups contain diatoms with taxonomic problems, e.g. Staurosira, Staurosirella genera and other fragilarioids. This approach allowed us to make paleo-ecological reconstruction on (1) rough taxonomic data and (2) apply trait-based methods. Diatom assemblage’s zones were defined by CONISS clustering method, validated by the broken stick model. Though the planktonic trait (referring the high lake level) is insignificant (< 5%) in most of the studied record, but some peaks (>35%) point to high water level. The most recent trend of increasing number of planktonic diatoms is hypothesized to be due to the recent global warming. We demonstrated that traits are a good alternative to time and expertise demanding species-level determination of diatoms, thus a quick method is found for paleo-ecological reconstructions, while the photo-base good for detailed taxonomic work at a future time. LA - English DB - MTMT ER - TY - JOUR AU - Buczkó, Krisztina AU - Stenger-Kovács, Csilla TI - Sósodás - A sókoncentráció hatása a kovaalgákra JF - ÉLET ÉS TUDOMÁNY J2 - ÉLET ÉS TUDOMÁNY VL - 78 PY - 2023 IS - 27 SP - 838 EP - 841 PG - 4 SN - 0013-6077 UR - https://m2.mtmt.hu/api/publication/34194526 ID - 34194526 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Buczkó, Krisztina AU - Stenger-Kovács, Csilla AU - Höhn, Mária Margit AU - Lőkös, László AU - Szurdoki, Erzsébet AU - Báldi, Katalin AU - Korponai, János TI - CRYPTIC 2023: CRYPTOGAMS' TRAITS IN THE CARPATHIANS JF - ACTA BIOLOGICA PLANTARUM AGRIENSIS J2 - ACTA BIOL PLAN AGR VL - 11 PY - 2023 IS - 2 SP - 4 SN - 2061-6716 DO - 10.21406/abpa.2023.11.2.4 UR - https://m2.mtmt.hu/api/publication/34162329 ID - 34162329 LA - English DB - MTMT ER - TY - CONF AU - Tombor, Eszter AU - Szabó, Zoltán AU - Zsigmond, R. Andrea AU - Wojewódka-Przybył, Marta AU - Buczkó, Krisztina AU - Korponai, János AU - Begy, Robert-Csaba AU - Magyari, Enikő Katalin TI - Magashegyi tavak ökoszisztéma-átalakulása a klímaváltozás és az emberi tevékenység hatására: a tavak biztonságos működési keretének meghatározása T2 - Department of Geoinformatics, Physical and Environmental Geography, Abstract Book PY - 2023 SP - 57 UR - https://m2.mtmt.hu/api/publication/34141050 ID - 34141050 LA - Hungarian DB - MTMT ER - TY - CONF AU - Tombor, Eszter AU - Zoltán, Szabó AU - Andrea, Zsigmond AU - Marta, Wojewódka-Przybył AU - Buczkó, Krisztina AU - János, Korponai AU - Robert-Csaba, Begy AU - Magyari, Enikő Katalin TI - Ecosystem response to climate change and human impact in South Carpathian alpine lakes: can we define restoration targets? T2 - Book of Abstracts PY - 2023 SP - 1314 UR - https://m2.mtmt.hu/api/publication/34140894 ID - 34140894 LA - English DB - MTMT ER - TY - CONF AU - Magyari, Enikő Katalin AU - Pálfi, Ivett AU - Pósfai, M. AU - Buczkó, Krisztina AU - Demény, A. AU - Czuppon, Gy. AU - Szabó, Z. AU - Korponai, J. AU - Szalai, Z. AU - Veres, D. AU - Arnaud, F. AU - Falus, Gy. AU - Bihari, Á TI - Stable isotope, biogenic calcite crystal structure and biotic proxy based low stands of Lake Balaton at 8.2 and 5.3 kyr BP, the largest shallow lake of Central Europe T2 - Book of Abstracts PY - 2023 SP - 1160 UR - https://m2.mtmt.hu/api/publication/34140798 ID - 34140798 LA - English DB - MTMT ER -