TY - JOUR AU - Bartha, Sándor AU - Szentes, Szilárd AU - Horváth, András AU - Házi, Judit AU - Zimmermann, Zita AU - Molnár, Csaba AU - Dancza, I AU - Margóczi, Katalin AU - Pál, Róbert AU - Purger, Dragica AU - Schmidt, Dávid AU - Óvári, M AU - Komoly, Cecília AU - Szentesné Sutyinszki, Zsuzsanna AU - Szabó, Gábor AU - Csathó, András István AU - Juhász, Melinda AU - Penksza, Károly AU - Molnár, Zsolt TI - Impact of mid-successional dominant species on the diversity and progress of succession in regenerating temperate grasslands JF - APPLIED VEGETATION SCIENCE J2 - APP VEGE SCI VL - 17 PY - 2014 IS - 2 SP - 201 EP - 213 PG - 13 SN - 1402-2001 DO - 10.1111/avsc.12066 UR - https://m2.mtmt.hu/api/publication/2423989 ID - 2423989 N1 - Funding Agency and Grant Number: OTKA [F04878, K81971, K72561, K105608]; European Union under REA [300639] Funding text: We appreciate helpful comments on our manuscript from Klara Viragh, Amy Eycott, Jonathan Mitchley and two anonymous referees. We thank Pinke Gyula, Szuromi Tamas, Maria Feher and Monika Hrtyan who helped during the field sampling. The project was supported by the OTKA F04878 (A. H.), K81971 (A. H.), K72561 (Zs.M.), K105608 (S. B.) and funding from the People Programme (Marie Curie Actions) of the European Union Seventh Framework Programme (FP7/2007-2013) under REA grant agreement number 300639 (R. W. P.). Thanks to Patrick Murphy (Hellgate High School, Missoula, USA) for the linguistic improvement of the text. MTA Centre for Ecological Research, Institute of Ecology and Botany, Alkotmány str. 2., Vácrátót, H-2163, Hungary Institute of Botany and Ecophysiology, Szent István University, Páter Károly str. 1., Gödöllo, H-2103, Hungary National Food Chain Safety Office, Directorate of Plant Protection, Soil Conservation and Agri-Environment, Kassai u. 34., Gömörszolos, H-3728, Hungary National Food Chain Safety Office, Directorate of Plant Protection, Soil Conservation and Agri-Environment, Budaörsi út 141-145., Budapest, H-1118, Hungary Department of Ecology, University of Szeged, Középfasor 52., Szeged, H-6726, Hungary Faculty of Sciences, Institute of Biology, University of Pecs, Ifjusag u. 6, Pecs, H-7624, Hungary National Institute for the Environment, Köztársaság tér 7, Pécs, H-7623, Hungary Institute of Botany and Nature Conservation, Faculty of Forestry, University of West Hungary, Ady E. u. 5., Sopron, H-9400, Hungary Balaton Upland National Park, Alsóerdei út 6., Zalaegerszeg, H-8900, Hungary Institute of Botany and Ecophysiology, Szent István University, Páter Károly u. 1., Gödöllo, H-8900, Hungary Division of Biological Sciences, The University of Montana, Missoula, MT, 59812, United States Cited By :25 Export Date: 3 December 2019 CODEN: AVSCF Correspondence Address: Bartha, S.; MTA Centre for Ecological Research, Institute of Ecology and Botany, Alkotmány str. 2., Vácrátót, H-2163, Hungary; email: sandor@okologia.mta.hu Funding Agency and Grant Number: OTKAOrszagos Tudomanyos Kutatasi Alapprogramok (OTKA) [F04878, K81971, K72561, K105608]; European Union under REA [300639] Funding text: We appreciate helpful comments on our manuscript from Klara Viragh, Amy Eycott, Jonathan Mitchley and two anonymous referees. We thank Pinke Gyula, Szuromi Tamas, Maria Feher and Monika Hrtyan who helped during the field sampling. The project was supported by the OTKA F04878 (A. H.), K81971 (A. H.), K72561 (Zs.M.), K105608 (S. B.) and funding from the People Programme (Marie Curie Actions) of the European Union Seventh Framework Programme (FP7/2007-2013) under REA grant agreement number 300639 (R. W. P.). Thanks to Patrick Murphy (Hellgate High School, Missoula, USA) for the linguistic improvement of the text. LA - English DB - MTMT ER - TY - JOUR AU - Bátori, Zoltán AU - Farkas, T. AU - Erdős, László AU - Tölgyesi, Csaba AU - Körmöczi, László AU - Vojtkó, András TI - A comparison of the vegetation of forested and non-forested solution dolines in Hungary: a preliminary study JF - BIOLOGIA (BRATISLAVA) J2 - BIOLOGIA VL - 69 PY - 2014 IS - 10 SP - 1339 EP - 1348 PG - 10 SN - 0006-3088 DO - 10.2478/s11756-014-0430-4 UR - https://m2.mtmt.hu/api/publication/2725970 ID - 2725970 N1 - Funding Agency and Grant Number: European Union, Hungary; European Social Fund in the framework of 'National Excellence Program' [TAMOP 4.2.4.A/2-11-1-2012-0001] Funding text: This research was supported by the European Union, Hungary, and co-financed by the European Social Fund in the framework of TAMOP 4.2.4.A/2-11-1-2012-0001 'National Excellence Program'. Department of Ecology, University of Szeged, Közép fasor 52, Szeged, H-6726, Hungary Directorate of the Aggtelek National Park, Tengerszem oldal 1, Jósvafő, H-3758, Hungary Department of Botany, Eszterházy Károly College, Leányka utca 6, Eger, H-3300, Hungary Cited By :7 Export Date: 3 December 2018 Correspondence Address: Bátori, Z.; Department of Ecology, University of Szeged, Közép fasor 52, Hungary Department of Ecology, University of Szeged, Közép fasor 52, Szeged, H-6726, Hungary Directorate of the Aggtelek National Park, Tengerszem oldal 1, Jósvafő, H-3758, Hungary Department of Botany, Eszterházy Károly College, Leányka utca 6, Eger, H-3300, Hungary Cited By :7 Export Date: 4 December 2018 Correspondence Address: Bátori, Z.; Department of Ecology, University of Szeged, Közép fasor 52, Hungary Department of Ecology, University of Szeged, Közép fasor 52, Szeged, H-6726, Hungary Directorate of the Aggtelek National Park, Tengerszem oldal 1, Jósvafő, H-3758, Hungary Department of Botany, Eszterházy Károly College, Leányka utca 6, Eger, H-3300, Hungary Cited By :7 Export Date: 5 December 2018 Correspondence Address: Bátori, Z.; Department of Ecology, University of Szeged, Közép fasor 52, Hungary Department of Ecology, University of Szeged, Közép fasor 52, Szeged, H-6726, Hungary Directorate of the Aggtelek National Park, Tengerszem oldal 1, Jósvafő, H-3758, Hungary Department of Botany, Eszterházy Károly College, Leányka utca 6, Eger, H-3300, Hungary Cited By :14 Export Date: 3 May 2021 Correspondence Address: Bátori, Z.; Department of Ecology, University of Szeged, Közép fasor 52, Hungary AB - The present study compares the vegetation characteristics of two large forested and one large non-forested solution dolines in Hungary. We investigated the species composition and vegetation pattern along north to south transects (across the doline bottoms) and compared the richness of different species groups (dry and wet groups) on the doline slopes. We applied linear regression models for each slope to explore the effects of topography on species richness, and Detrended Correspondence Analysis (DCA) to detect the major gradients of floristic variation within each site. We found that the vegetation changed significantly along all transects; and, regardless of the vegetation cover, the doline bottoms contained several cool-adapted species. Variations within the two species groups were more pronounced on the south-facing slopes. The changes were similar in the forested dolines, indicating the role of forest cover in maintaining many cool-adapted species on the north-facing slopes as well. However, the number of cool-adapted species increased significantly along both slopes of the non-forested doline from the upper edge to the bottom. Contrary to our expectations, the species turnover along the slopes of the non-forested doline was lower than that along the slopes of the forested ones. We conclude that both the forested and non-forested dolines serve as refuges for many plant species adapted to different environmental conditions. Apart from providing an understanding of population patterns along environmental gradients, our results may also contribute to our understanding of an even more fundamental question for a future research agenda: the probable effects of climate change on vegetation characteristics in climatic islands with environmental conditions substantially different from the surrounding areas. LA - English DB - MTMT ER - TY - JOUR AU - Bátori, Zoltán AU - Csiky, János AU - Erdős, László AU - Morschhauser, Tamás AU - Török, Péter AU - Körmöczi, László TI - Vegetation of the dolines in Mecsek mountains (South Hungary) in relation to the local plant communities JF - ACTA CARSOLOGICA J2 - ACTA CARSOLOGICA VL - 38 PY - 2009 IS - 2-3 SP - 237 EP - 252 PG - 16 SN - 0583-6050 DO - 10.3986/ac.v38i2-3.125 UR - https://m2.mtmt.hu/api/publication/1290843 ID - 1290843 LA - English DB - MTMT ER - TY - JOUR AU - Chytry, M AU - Tichy, L AU - Holt, J AU - Botta-Dukát, Zoltán TI - Determination of diagnostic species with statistical fidelity measures JF - JOURNAL OF VEGETATION SCIENCE J2 - J VEG SCI VL - 13 PY - 2002 IS - 1 SP - 79 EP - 90 PG - 12 SN - 1100-9233 DO - 10.1111/j.1654-1103.2002.tb02025.x UR - https://m2.mtmt.hu/api/publication/1139674 ID - 1139674 AB - Statistical measures of fidelity, i.e. the concentration of species occurrences in vegetation units, are reviewed and compared. The focus is on measures suitable for categorical data which are based on observed species frequencies within a vegetation unit compared with the frequencies expected under random distribution. Particular attention is paid to Bruelheide's it value. It is shown that its original form, based on binomial distribution, is an asymmetric measure of fidelity of a species to a vegetation unit which tends to assign comparatively high fidelity values to rare species. Here, a hypergeometric form of it is introduced which is a symmetric measure of the joint fidelity of species to a vegetation unit and vice versa. It is also shown that another form of the binomial it value may be defined which measures the asymmetric fidelity of a vegetation unit to a species. These it values are compared with phi coefficient, chi-square, G statistic and Fisher's exact test. Contrary to the other measures, phi coefficient is independent of the number of releves in the data set, and like the hypergeometric form of it and the chi-square it is little affected by the relative size of the vegetation unit. It is therefore particularly useful when comparing species fidelity values among differently sized data sets and vegetation units. However, unlike the other measures it does not measure any statistical significance and may produce unreliable results for small vegetation units and small data sets. The above measures, all based on the comparison of observed/expected frequencies, are compared with the categorical form of the Dufrene-Legendre Indicator Value Index, an index strongly underweighting the fidelity of rare species. These fidelity measures are applied to a data set of 15 989 releves of Czech herbaceous vegetation. In a small subset of this data set which simulates a phytosociological table, we demonstrate that traditional table analysis fails to determine diagnostic species of general validity in different habitats and large areas. On the other hand, we show that fidelity calculations used in conjunction with large data sets can replace expert knowledge in the determination of generally valid diagnostic species. Averaging positive fidelity values for all species within a vegetation unit is a useful approach to measure quality of delimination of the vegetation unit. We propose a new way of ordering species in synoptic species-by-releve tables, Using fidelity calculations. LA - English DB - MTMT ER -