@CONFERENCE{MTMT:34802448, title = {Inváziós fafajok abundancia-becslésének hibája különböző mintavételi intenzitásoknál / Error in abundance estimates of invasive tree species at different sampling intensities}, url = {https://m2.mtmt.hu/api/publication/34802448}, author = {Erdélyi, Arnold and Knakker, Balázs and Hartdégen, Judit and Malatinszky, Ákos and Vadász, Csaba}, booktitle = {XIV. Aktuális Flóra- és Vegetációkutatás a Kárpát-medencében nemzetközi konferencia: Összefoglalók.}, unique-id = {34802448}, year = {2024}, pages = {24-24}, orcid-numbers = {Knakker, Balázs/0000-0002-7725-6544; Malatinszky, Ákos/0000-0001-6388-9191} } @article{MTMT:34493708, title = {Effects of management complexity on the composition, plant functional dominance relationships and physiognomy of high nature value grasslands}, url = {https://m2.mtmt.hu/api/publication/34493708}, author = {Kun, Róbert and Babai, Dániel and Csathó, András István and Erdélyi, Arnold and Hartdégen, Judit and Lengyel, Attila and Kálmán, Nikoletta and Mártonffy, András and Hábenczyus, Alida Anna and Szegleti, Zsófia and Vig, Ákos and Máté, András and Malatinszky, Ákos and Tóth, Tímea and Vadász, Csaba}, doi = {10.3897/natureconservation.55.114385}, journal-iso = {NAT CONSERV}, journal = {NATURE CONSERVATION-BULGARIA}, volume = {55}, unique-id = {34493708}, issn = {1314-6947}, abstract = {A significant proportion of Europe’s species-rich grasslands are semi-natural habitats. They have a long history of traditional management. Several studies have been carried out to conserve them, resulting in the establishment of subsidised conservation management schemes. On the other hand, many of these conservation management schemes have failed to provide locally adaptive solutions to maintain the diversity and functional status of species-rich grasslands. In addition, few studies have compared the conservation effectiveness of different levels of management complexity. The levels of management complexity in our study are based on how different management types (e.g. grazing and mowing etc.) and how different herbage removal intensities (e.g. lower and higher grazing intensities) are combined within and between years. To investigate this, we compared the overall effects of management complexity, herbage removal intensity and management type on plant diversity, plant functional type dominance relationships and plant physiognomy. Our field sampling was carried out in the sandy meso-xeric grasslands of the Turján Region of the Great Hungarian Plain (Central Hungary). We sampled nine 2 m × 2 m plots per grassland site (n = 12), recorded all the rooted plant species and estimated their percentage cover in each plot. High level of management complexity had significant positive effects on plant diversity, grazing had positive effects on plant diversity and phanerophyte density, while the studied levels of herbage removal intensity had no effect on diversity, plant functional types or plant physiognomy. In parallel, mowing and/or low levels of management complexity had some negative effects on conservation value (e.g. lower Shannon and Simpson diversity). In this landscape, the dominance of grazing and the more complex management is more optimal than relatively homogeneous mechanical mowing. The choice of management type and intensity is an important tool in the conservation management system of this landscape, but so too is its appropriate application in space and time. Through a detailed analysis of the effects of management complexity levels compared to management types and herbage removal intensity levels, we provide a new opportunity to make grassland management practices more effective for conserving biodiversity in this region, but it would be important to investigate these in different landscapes and conditions.}, year = {2024}, eissn = {1314-3301}, pages = {1-19}, orcid-numbers = {Lengyel, Attila/0000-0002-1712-6748; Malatinszky, Ákos/0000-0001-6388-9191} } @article{MTMT:34539721, title = {A Tájökológiai Lapok első 20 éve}, url = {https://m2.mtmt.hu/api/publication/34539721}, author = {Centeri, Csaba and Malatinszky, Ákos and Pető, Ákos and Saláta, Dénes}, journal-iso = {TÁJÖKOLÓGIAI LAPOK / J LANDSCAPE ECOL}, journal = {TÁJÖKOLÓGIAI LAPOK / JOURNAL OF LANDSCAPE ECOLOGY}, volume = {21}, unique-id = {34539721}, issn = {1589-4673}, year = {2023}, pages = {3-5}, orcid-numbers = {Centeri, Csaba/0000-0001-6590-4850; Malatinszky, Ákos/0000-0001-6388-9191; Saláta, Dénes/0000-0002-7149-0022} } @article{MTMT:34435076, title = {Comparative analysis of the Macroinvertebrate fauna of ecologicallystable and traditional garden ponds}, url = {https://m2.mtmt.hu/api/publication/34435076}, author = {Tamás, Bence and Hoffmann, Orsolya Ivett and Malatinszky, Ákos}, doi = {10.14232/rard.2023.1-2.68-73}, journal-iso = {REVIEW ON AGRICULTURE AND RURAL DEVELOPMENT}, journal = {REVIEW ON AGRICULTURE AND RURAL DEVELOPMENT}, volume = {12}, unique-id = {34435076}, issn = {2063-4803}, abstract = {Freshwater habitats are considered to be highly vulnerable globally.For some species, mainly invertebrates, artificial ponds created in urbangardens give suitable habitat or function as stepping stones. However,traditional garden ponds use expensive pieces of equipment with high energydemand and might release harmful chemicals into their environment. Incontrast, the ecologically stable garden ponds, which are distinguishedfrom the traditional garden ponds by their design and the complex ecosystemthat maintains them, offer a solution for the problems of eutrophicationand succession and maintain optimal water quality in an environmentally andcost-effective way. This study aimed to compare the aquaticmacroinvertebrate fauna diversity between traditional garden ponds andecologically stable garden ponds designed and constructed by the firstauthor. Five ponds of both types were examined, by collecting biologicalspecimens from 90 sampling points. Altogether 42 species were identified,and one taxon at the genus level. Our statistical analysis indicates thatthe ecologically stable ponds host a much richer macroinvertebrate fauna interms of species abundance compared to traditional garden ponds.}, year = {2023}, eissn = {2677-0792}, pages = {68-73}, orcid-numbers = {Malatinszky, Ákos/0000-0001-6388-9191} } @article{MTMT:34432883, title = {Historical ecological research of the kurgans of Hajdúnánás–Zagolya-dűlő}, url = {https://m2.mtmt.hu/api/publication/34432883}, author = {Braun, Ádám and Bakodi, A and Saláta, Dénes and Malatinszky, Ákos and Rigó, Attila and Pető, Ákos}, journal-iso = {REVIEW ON AGRICULTURE AND RURAL DEVELOPMENT}, journal = {REVIEW ON AGRICULTURE AND RURAL DEVELOPMENT}, volume = {12}, unique-id = {34432883}, issn = {2063-4803}, year = {2023}, eissn = {2677-0792}, pages = {115-121}, orcid-numbers = {Saláta, Dénes/0000-0002-7149-0022; Malatinszky, Ákos/0000-0001-6388-9191} } @article{MTMT:34429729, title = {The distribution of the tree of heaven (Ailanthus altissima (Mill.) Swingle) in the settlements and forests of Southern Börzsöny, Hungary}, url = {https://m2.mtmt.hu/api/publication/34429729}, author = {Vig, Tamás and Erdélyi, Arnold and Malatinszky, Ákos}, doi = {10.17716/BotKozlem.2023.110.2.167}, journal-iso = {BOTANIKAI KÖZL}, journal = {BOTANIKAI KÖZLEMÉNYEK}, volume = {110}, unique-id = {34429729}, issn = {0006-8144}, abstract = {In this study, we investigated the occurrence of the invasive alien tree of heaven (Ailanthus altissima) in the approximately 2,100-hectare area of Southern Börzsöny, along the road network in settlements Zebegény and Nagymaros and in forests. Th e survey was carried out according to the abundance and location of the species (for all occurrences), the maintained or neglected status of the area (for settlements), and the open or closed nature of the stand (for forests). Individuals or more coherent stands of the tree of heaven were recorded using handheld GPS. A new point was taken when the distance between two individuals or stands exceeded 10 m. We recorded 482 occurrences of tree of heaven in the two settlements and found that it occurs most frequently in neglected public green areas (38%) and neglected gardens (21%), and oft en shows up along railway lines (18%). In forested areas between the two settlements, we recorded 193 occurrences and found that the tree occurs mainly along regularly used forest roads (42%), and most frequently in open stands (especially in artifi cial gaps) (69%). Our study also points out that the Hungarian National Forest Inventory data indicate signifi cantly fewer occurrences (covering 23 subcompartments) than our forest mapping survey or earlier ones by other researchers (56 and 60 subcompartments, respectively). Based on our results, anthropogenic impacts are crucial for the spread of the species. Th e tree is expected to spread exponentially in the future, so in order to prevent this, we recommend that treatments are carried out as soon as possible, with the immediate eradication of seed-producing individuals. Th e issue of social perception and knowledge is also crucial, as the majority of the society generally has little knowledge of both the tree of heaven and the dangers posed by invasive plant species. Targeted education of the public can therefore be an important element of prevention.}, year = {2023}, eissn = {2415-9662}, pages = {167-190}, orcid-numbers = {Malatinszky, Ákos/0000-0001-6388-9191} } @article{MTMT:34406323, title = {Inventory of the urban flora of Budapest (Hungary) highlighting new and noteworthy floristic records}, url = {https://m2.mtmt.hu/api/publication/34406323}, author = {Rigó, Attila and Malatinszky, Ákos and Barina, Zoltán}, doi = {10.3897/BDJ.11.e110450}, journal-iso = {BIODIVERS DATA J}, journal = {BIODIVERSITY DATA JOURNAL}, volume = {11}, unique-id = {34406323}, issn = {1314-2836}, abstract = {The systematic urban floristic research of Budapest was started in 2018 by the authors with detailed methodology. One scope of the research was to gain knowledge on the plant taxa appearing in Budapest and to compile the inventory of the urban flora of Budapest.}, year = {2023}, eissn = {1314-2828}, orcid-numbers = {Malatinszky, Ákos/0000-0001-6388-9191; Barina, Zoltán/0000-0003-3117-7186} } @article{MTMT:34194441, title = {Historical reconstruction of the invasions of four non-native tree species at local scale: a detective work on Ailanthus altissima, Celtis occidentalis, Prunus serotina and Acer negundo}, url = {https://m2.mtmt.hu/api/publication/34194441}, author = {Erdélyi, Arnold and Hartdégen, Judit and Malatinszky, Ákos and Vadász, Csaba}, doi = {10.3897/oneeco.8.e108683}, journal-iso = {ONE ECOSYST}, journal = {ONE ECOSYSTEM}, volume = {8}, unique-id = {34194441}, abstract = {Reconstructing the history (spatio-temporal patterns) of biological invasions at a small spatial scale is challenging, notably because the required data are often not available in sufficient quantity and quality. In this study, we present a mixed approach using six different data sources to explore the spreading history of four non-native invasive tree species, Ailanthus altissima , Celtis occidentalis , Prunus serotina and Acer negundo in a high conservation value foreststeppe habitat with an area of 1000 ha (Peszér Forest, Central Hungary). We carried out a literature search, compiled all the archived and currently valid data of the National Forestry Database (NFD) in a GIS database, conducted a full-coverage field survey, mapped all the large/old tree specimens and carried out annual ring counts, performed a hotspot analysis on the abundance data provided by the field survey and gathered local knowledge. Each of these approaches proved indispensable and their complementary use made it possible to reconstruct the invasion history of all four tree species. According to the available source literature, P. serotina was first planted in the area in 1937 and the first known occurrence of A. altissima could also be traced back to the 1930s. The examination of large specimens of C. occidentalis and querying the NFD for data related to A. negundo provided evidence that these species have been present in the area since at least the 1940s. However, based on the NFD and local knowledge, it is certain that the rapid expansion of the four tree species occurred simultaneously and only around the turn of the millennium, with a lag of at least 60-70 years. The exploration of local knowledge revealed three possible explanations, which interestingly also coincided in time. With the change in the political regime, the intensity of forest use started to decrease in the 1990s, the population of game was drastically reduced at the end of the decade and droughts became more frequent from 2000 onwards. The field survey clearly showed that these tree species were 2-3 times more prevalent and abundant than the relevant NFD data indicated. Finally, the primary hotspots of A. altissima and A. negundo overlapped with the locations of their first known occurrences, while in the case of C. occidentalis and P. serotina , they did not. However, local knowledge revealed that the former two had been ignored since at least the 1950s, while the latter two were occasionally planted until the 1990s. It is likely that the primary hotspots of C. occidentalis and P. serotina indicate the locations of these undocumented plantations.}, year = {2023}, eissn = {2367-8194}, orcid-numbers = {Malatinszky, Ákos/0000-0001-6388-9191} } @inproceedings{MTMT:34192182, title = {A Vác környéki ökológiailag stabil kerti tavak és klasszikus kerti tavak makrogerinctelen faunájának összehasonlító elemzése}, url = {https://m2.mtmt.hu/api/publication/34192182}, author = {Tamás, Bence and Hoffmann, Orsolya Ivett and Malatinszky, Ákos}, booktitle = {XXIX. Ifjúsági Tudományos Fórum : Konferenciakötet}, unique-id = {34192182}, year = {2023}, pages = {161-165}, orcid-numbers = {Malatinszky, Ákos/0000-0001-6388-9191} } @{MTMT:34105138, title = {Alkalmazkodás az éghajlatváltozáshoz}, url = {https://m2.mtmt.hu/api/publication/34105138}, author = {Malatinszky, Ákos and Kajner, P. and Siposs, V.}, booktitle = {Élő és éltető folyók. Folyóvízi rendszerek fenntartható használata}, unique-id = {34105138}, year = {2023}, pages = {147.-161.}, orcid-numbers = {Malatinszky, Ákos/0000-0001-6388-9191} }