TY - JOUR AU - Oborny, Beáta AU - Zimmermann, Daniel TI - Advancing and retreating fronts in a changing climate: a percolation model of range shifts JF - ECOGRAPHY J2 - ECOGRAPHY VL - 2023 PY - 2023 IS - 11 PG - 13 SN - 0906-7590 DO - 10.1111/ecog.06645 UR - https://m2.mtmt.hu/api/publication/34112873 ID - 34112873 AB - Climate change causes considerable shifts in the geographic distribution of species worldwide. Most data on range movements, however, derive from relatively short periods, within which it is difficult to distinguish directional shifts from random fluctuations. For detecting a shift, it is indispensable to delineate the range precisely. We propose a new method for the delineation based on percolation theory. We suggest marking the boundary between the connected and fragmented occurrence of the species (the hull). We demonstrate the advantages of this connectivity-based method on simulated examples in which a metapopulation is advancing vs retreating along an environmental gradient with different velocities. The simulations show that the hull is a fractal and has the same dimension (7/4) even when the front is advancing or retreating relatively fast, compared to the generation time. It is particularly robust in the retreating (trailing) edge. Accordingly, we propose marking the range edge at the mean position of the hull, the 'connectivity limit' of the species. Theoretical considerations suggest that the position of the connectivity limit is statistically more reliable than those limits that are delineated according to the outermost occurrences, and the connectivity-based method is broadly applicable to real-life data. LA - English DB - MTMT ER - TY - JOUR AU - Oborny, Beáta TI - Lost in translation? – Caveat to the application of the voter model in ecology and evolutionary biology JF - SCIENCE PROGRESS J2 - SCI PROGRESS VL - 106 PY - 2023 IS - 2 SN - 0036-8504 DO - 10.1177/00368504231175324 UR - https://m2.mtmt.hu/api/publication/33926698 ID - 33926698 N1 - Biological Institute, Eötvös Loránd University, Budapest, Hungary CER Institute of Evolution, Eötvös Loránd Research Network, Budapest, Hungary Export Date: 22 June 2023 Correspondence Address: Oborny, B.; Biological Institute, Hungary; email: beata.oborny@ttk.elte.hu AB - The voter model is a paradigmatic model of competition between alternative states within groups. Its properties have been intensively studied in statistical physics. Due to its generality, the model lends itself to various applications in ecology and evolutionary biology. I briefly review these opportunities, but call attention to a frequently occurring misinterpretation: it is often assumed that the agents in the model represent individual organisms. I argue that this assumption only holds under very specific conditions, and thus the meaning of the agents is often ‘lost in translation’ between physics and biology. Instead of an individual-based view, I propose that an alternative, site-based approach is more plausible. I suggest that the biological applicability of the model could further be broadened by considering the transitional states of the agents (sites) explicitly and letting the network evolve according to the agents’ states. LA - English DB - MTMT ER - TY - JOUR AU - Oborny, Beáta AU - Marcsó, Soma TI - Self-inhibition and optimal ramet mortality in clonal plants JF - FLORA J2 - FLORA VL - 302 PY - 2023 PG - 11 SN - 0367-2530 DO - 10.1016/j.flora.2023.152275 UR - https://m2.mtmt.hu/api/publication/33744077 ID - 33744077 N1 - Department of Plant Taxonomy, Ecology and Theoretical Biology, Loránd Eötvös University, Budapest, Hungary Institute of Evolution, Centre for Ecological Research, Loránd Eötvös Research Network, Budapest, Hungary Department of Ecology, Institute for Biology, University of Veterinary Medicine, Budapest, Hungary Export Date: 9 May 2023 CODEN: FLRAB Correspondence Address: Oborny, B.; Department of Plant Taxonomy, 1/c Pázmány Péter stny, Hungary; email: beata.oborny@ttk.elte.hu LA - English DB - MTMT ER - TY - JOUR AU - Csákvári, Edina AU - Fabók, Veronika AU - Bartha, Sándor AU - Barta, Zoltán AU - Batáry, Péter AU - Borics, Gábor AU - Botta-Dukát, Zoltán AU - Erős, Tibor AU - Gáspár, Judit AU - Hideg, Éva AU - Kovács-Hostyánszki, Anikó AU - Sramkó, Gábor AU - Standovár, Tibor AU - Lengyel, Szabolcs AU - Liker, András AU - Magura, Tibor AU - Márton, András AU - Molnár, V. Attila AU - Molnár, Zsolt AU - Oborny, Beáta AU - Ódor, Péter AU - Tóthmérész, Béla AU - Török, Katalin AU - Török, Péter AU - Valkó, Orsolya AU - Szép, Tibor AU - Vörös, Judit AU - Báldi, András TI - Conservation biology research priorities for 2050. A Central-Eastern European perspective TS - A Central-Eastern European perspective JF - BIOLOGICAL CONSERVATION J2 - BIOL CONSERV VL - 264 PY - 2021 PG - 8 SN - 0006-3207 DO - 10.1016/j.biocon.2021.109396 UR - https://m2.mtmt.hu/api/publication/32508569 ID - 32508569 N1 - Restoration Ecology Research Group, ELKH Centre for Ecological Research, Institute of Ecology and Botany, Alkotmány u. 2-4, Vácrátót, 2163, Hungary “Lendület” Ecosystem Services Research Group, ELKH Centre for Ecological Research, Institute of Ecology and Botany, Alkotmány u. 2-4, Vácrátót, 2163, Hungary ELKH Centre for Ecological Research, Institute of Ecology and Botany, Alkotmány u. 2-4, Vácrátót, 2163, Hungary MTA-DE Behavioural Ecology Research Group, Department of Evolutionary Zoology, University of Debrecen, Egyetem tér 1., Debrecen, 4032, Hungary “Lendület” Landscape and Conservation Ecology Research Group, ELKH Centre for Ecological Research, Institute of Ecology and Botany, Alkotmány u. 2-4, Vácrátót, 2163, Hungary ELKH Centre for Ecological Research, Institute of Aquatic Ecology, Karolina út 29., Budapest, 1113, Hungary Balaton Limnological Research Institute, Klebelsberg Kuno u. 3, Tihany, 8237, Hungary Corvinus University of Budapest, Fővám tér 8., Budapest, 1093, Hungary MTA-DE “Lendület” Evolutionary Phylogenomics Research Group, Debrecen, Hungary Department of Plant Systematics, Ecology and Theoretical Biology, ELTE Eötvös Loránd University, Pázmány P. sétány 1/C, Budapest, 1117, Hungary MTA-PE Evolutionary Ecology Research Group, University of Pannonia, H-8210, Veszprém, Pf. 1158, Hungary Department of Ecology, University of Debrecen, Egyetem tér 1, Debrecen, 4032, Hungary University of Debrecen, Department of Botany, Egyetem tér 1, Debrecen, 4032, Hungary ELKH Centre for Ecological Research, Institute of Evolution, Konkoly-Thege Miklós út 29-33, Budapest, 1121, Hungary Biological Institute, ELTE Eötvös Loránd University, Pázmány P. sétány 1/C, Budapest, 1117, Hungary MTA-TKI Biodiversity and Ecosystem Services Research Group, Debrecen, Hungary MTA-DE “Lendület” Functional and Restoration Ecology Research Group, Egyetem sqr. 1, Debrecen, 4032, Hungary “Lendület” Seed Ecology Research Group, ELKH Centre for Ecological Research, Institute of Ecology and Botany, Alkotmány u. 2-4, Vácrátót, 2163, Hungary University of Nyíregyháza, Institute of Environmental Science, Sóstói út 31/b, Nyíregyháza, 4401, Hungary Department of Zoology, Hungarian Natural History Museum, Baross u. 13, Budapest, 1088, Hungary Export Date: 4 January 2022 CODEN: BICOB Correspondence Address: Csákvári, E.; Restoration Ecology Research Group, Alkotmány u. 2-4, Hungary; email: csakvari.edina@ecolres.hu LA - English DB - MTMT ER - TY - JOUR AU - Ishida, Kota AU - Oborny, Beáta AU - Gastner, Michael T. TI - Agent-based neutral competition in two-community networks JF - PHYSICAL REVIEW E: COVERING STATISTICAL NONLINEAR BIOLOGICAL AND SOFT MATTER PHYSICS (2016-) J2 - PHYSICAL REVIEW E VL - 104 PY - 2021 IS - 2 PG - 12 SN - 2470-0045 DO - 10.1103/PhysRevE.104.024308 UR - https://m2.mtmt.hu/api/publication/32154859 ID - 32154859 N1 - Funding Agency and Grant Number: Singapore Ministry of Education (MOE)Ministry of Education, Singapore; Yale-NUS College [R-607-263-043-121]; National Science Foundation of Hungary [HU NKFI FK K124438] Funding text: This work was supported by the Singapore Ministry of Education (MOE) and Yale-NUS College (through Grant No. R-607-263-043-121) and the National Science Foundation of Hungary (HU NKFI FK K124438) . We thank Editage for English language editing. AB - Competition between alternative states is an essential process in social and biological networks. Neutral competition can be represented by an unbiased random drift process in which the states of vertices (e.g., opinions, genotypes, or species) in a network are updated by repeatedly selecting two connected vertices. One of these vertices copies the state of the selected neighbor. Such updates are repeated until all vertices are in the same "consensus" state. There is no unique rule for selecting the vertex pair to be updated. Real-world processes comprise three limiting factors that can influence the selected edge and the direction of spread: (1) the rate at which a vertex sends a state to its neighbors, (2) the rate at which a state is received by a neighbor, and (3) the rate at which a state can be exchanged through a connecting edge. We investigate how these three limitations influence neutral competition in networks with two communities generated by a stochastic block model. By using Monte Carlo simulations, we show how the community structure and update rule determine the states' success probabilities and the time until a consensus is reached. We present a heterogeneous mean-field theory that agrees well with the Monte Carlo simulations. The effectiveness of the heterogeneous mean-field theory implies that quantitative predictions about the consensus are possible even if empirical data (e.g., from ecological fieldwork or observations of social interactions) do not allow a complete reconstruction of all edges in the network. LA - English DB - MTMT ER - TY - JOUR AU - Juhász, Róbert AU - Oborny, Beáta TI - Percolation theory suggests some general features in range margins across environmental gradients JF - ECOLOGICAL COMPLEXITY J2 - ECOL COMPLEX VL - 42 PY - 2020 PG - 8 SN - 1476-945X DO - 10.1016/j.ecocom.2020.100814 UR - https://m2.mtmt.hu/api/publication/31229637 ID - 31229637 LA - English DB - MTMT ER - TY - JOUR AU - Kun, Ádám AU - Oborny, Beáta AU - Dieckmann, Ulf TI - Five main phases of landscape degradation revealed by a dynamic mesoscale model analysing the splitting, shrinking, and disappearing of habitat patches JF - SCIENTIFIC REPORTS J2 - SCI REP VL - 9 PY - 2019 PG - 11 SN - 2045-2322 DO - 10.1038/s41598-019-47497-7 UR - https://m2.mtmt.hu/api/publication/30769572 ID - 30769572 N1 - Funding Agency and Grant Number: Hungarian National Research FundOrszagos Tudomanyos Kutatasi Alapprogramok (OTKA) [T29789, T35009, K109215, K124438, K100299, K119347, GINOP-2.3.2-15-2016-00057, GINOP-2.3.2-15-2016-00019, NWO-OTKA N34028]; National Research, Development and Innovation Office (NKFIH) [T29789, T35009, K109215, K124438, K100299, K119347, GINOP-2.3.2-15-2016-00057, GINOP-2.3.2-15-2016-00019, NWO-OTKA N34028]; European Science FoundationEuropean Science Foundation (ESF)European Commission [TBA/01]; Hungarian Academy of SciencesHungarian Academy of Sciences; International Program of the Santa Fe Institute, USA; Sixth Framework Program of the European CommissionEuropean Commission; European Science FoundationEuropean Science Foundation (ESF)European Commission; Austrian Science FundAustrian Science Fund (FWF); Austrian Ministry of Science and Research; Vienna Science and Technology Fund Funding text: We thank Ferenc Jordan, Gabriella Magyar, and Peter Mandl for their helpful comments on earlier versions of this manuscript. Peter Englert kindly allowed us to use his graphical modelling tool PLA-MAZE for producing the pictures in Fig. 1. We are also very grateful to Geza Meszena and Gyorgy Szabo for enjoyable discussions about our project. This work was supported by the Hungarian National Research Fund and the National Research, Development and Innovation Office (NKFIH) under the grant numbers T29789, T35009, K109215, K124438, K100299, K119347, GINOP-2.3.2-15-2016-00057, GINOP-2.3.2-15-2016-00019, and NWO-OTKA N34028. A.K. is grateful for support from the European Science Foundation (TBA/01) for his participation in the Young Scientists Summer Program of the International Institute for Applied Systems Analysis in Laxenburg, Austria, and for support for a Janos Bolyai Research Fellowship from the Hungarian Academy of Sciences. B.O. acknowledges support by the International Program of the Santa Fe Institute, USA. U.D. gratefully acknowledges support by the Sixth Framework Program of the European Commission, the European Science Foundation, the Austrian Science Fund, the Austrian Ministry of Science and Research, and the Vienna Science and Technology Fund. AB - The ecological consequences of habitat loss and fragmentation have been intensively studied on a broad, landscape-wide scale, but have less been investigated on the finer scale of individual habitat patches, especially when considering dynamic turnovers in the habitability of sites. We study changes to individual patches from the perspective of the inhabitant organisms requiring a minimum area for survival. With patches given by contiguous assemblages of discrete habitat sites, the removal of a single site necessarily causes one of the following three elementary local events in the affected patch: splitting into two or more pieces, shrinkage without splitting, or complete disappearance. We investigate the probabilities of these events and the effective size of the habitat removed by them from the population's living area as the habitat landscape gradually transitions from pristine to totally destroyed. On this basis, we report the following findings. First, we distinguish four transitions delimiting five main phases of landscape degradation: (1) when there is only a little habitat loss, the most frequent event is the shrinkage of the spanning patch; (2) with more habitat loss, splitting becomes significant; (3) splitting peaks; (4) the remaining patches shrink; and (5) finally, they gradually disappear. Second, organisms that require large patches are especially sensitive to phase 3. This phase emerges at a value of habitat loss that is well above the percolation threshold. Third, the effective habitat loss caused by the removal of a single habitat site can be several times higher than the actual habitat loss. For organisms requiring only small patches, this amplification of losses is highest during phase 4 of the landscape degradation, whereas for organisms requiring large patches, it peaks during phase 3. LA - English DB - MTMT ER - TY - JOUR AU - Gastner, Michael T. AU - Takács, Károly AU - Gulyás, Máté AU - Szvetelszky, Zsuzsanna AU - Oborny, Beáta TI - The impact of hypocrisy on opinion formation: A dynamic model JF - PLOS ONE J2 - PLOS ONE VL - 14 PY - 2019 IS - 6 PG - 21 SN - 1932-6203 DO - 10.1371/journal.pone.0218729 UR - https://m2.mtmt.hu/api/publication/30731080 ID - 30731080 N1 - Cited By :1 Export Date: 29 October 2019 CODEN: POLNC Correspondence Address: Gastner, M.T.; Division of Science, Yale-NUS CollegeSingapore; email: michael.gastner@yale-nus.edu.sg Funding Agency and Grant Number: European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programmeEuropean Research Council (ERC) [648693]; NKFIH-OTKAOrszagos Tudomanyos Kutatasi Alapprogramok (OTKA) [K109215, K124438, K112929]; Szechenyi 2020 program [GINOP-2.3.2-15-2016-00019] Funding text: This project has received funding from the European Research Council (ERC, https://erc.europa.eu/) under the European Union's Horizon 2020 research and innovation programme (grant agreement no 648693). BO and MG were supported by NKFIH-OTKA (https://nkfih.gov.hu/funding/otka#, grant agreements K109215 and K124438 [BO], K112929 [MG]). Additional funding from Szechenyi 2020 program (GINOP-2.3.2-15-2016-00019 to BO). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. LA - English DB - MTMT ER - TY - JOUR AU - Oborny, Beáta TI - The plant body as a network of semi-autonomous agents: a review JF - PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B - BIOLOGICAL SCIENCES J2 - PHILOS T ROY SOC B VL - 374 PY - 2019 IS - 1774 SN - 0962-8436 DO - 10.1098/rstb.2018.0371 UR - https://m2.mtmt.hu/api/publication/30671210 ID - 30671210 N1 - Institute of Biology, Loránd Eötvös University, Budapest, Hungary GINOP Sustainable Ecosystems Group, Centre for Ecological Research, Hungarian Academy of Sciences, Tihany, Hungary Cited By :1 Export Date: 8 October 2019 CODEN: PTRBA Correspondence Address: Oborny, B.; Institute of Biology, Loránd Eötvös UniversityHungary; email: beata.oborny@ttk.elte.hu Funding Agency and Grant Number: National Research Fund of Hungary (NKFIH-OTKA)Orszagos Tudomanyos Kutatasi Alapprogramok (OTKA) [K109215, K124438]; [GINOP-2.3.2-15-2016-00019] Funding text: The research was supported by the National Research Fund of Hungary (NKFIH-OTKA, grant nos K109215 and K124438), and GINOP-2.3.2-15-2016-00019. The revised version of the manuscript was prepared while the author was a visiting researcher at the Department of Ecology and Biodiversity, Catholic University of Chile. LA - English DB - MTMT ER - TY - CONF AU - Gastner, M. AU - Oborny, Beáta AU - Gulyás, M. TI - A voter model with concealed and publicly expressed opinions T2 - Abstracts of the 2018 Conference on Complex Systems PY - 2018 UR - https://m2.mtmt.hu/api/publication/30672889 ID - 30672889 LA - English DB - MTMT ER -