Degrees: MSc in Biology (2006, Eötvös Loránd University)
Position: PhD student
E-mail: ngergely@gmail.com
Phone: +36-1-372-2500/8751
Research interests:
- Prenatal steroid environment and phenotypic life history traits.
- Signals of maternal effects and developmental stability.
Links:
- HUN-REN Evolutionary Ecology Research Group
- Barn Owl Foundation
- Barn Owl Foundation Facebook
- Publications (MTMT, ORCID)
Publications:
Laczi, M., Herczeg, G., Sarkadi, F., Gyarmathy, H., Herényi, M., Jablonszky, M., Kőmüves, G., Markó, G., Nagy, G., Rosivall B., Szabó, G., Török, J., Hegyi, G. (2025) Nestling plumage colour variation in a sexually dichromatic hole-nesting passerine bird – potential functions and mechanisms. Ecology and Evolution 15:e71152. (DOI: 10.1002/ece3.71152)
Jablonszky, M., Laczi, M., Nagy, G., Tóth, Z., Zsebők, S., Garamszegi, L.Z. (2025) Close males sing with dissimilar minimum frequency and repertoire size in a wild passerine. Ecology and Evolution 15:e71044. (DOI: 10.1002/ece3.71044)
Zsebők, S., Vaskuti, É., Laczi, M., Nagy, G., Jablonszky, M., Barta, K. A., Canal, D., Derégnaoucourt, S., Garamszegi, L.Z. (2025). Context-dependent organization of birdsong – experimental evidence from collared flycatcher (Ficedula albicollis). Animal Behaviour 219:123026. (DOI: 10.1016/j.anbehav.2024.11.004)
Jablonszky, M., Canal, D., Hegyi, G, Herényi, M., Laczi, M., Markó, G., Nagy, G., Rosivall, B., Szöllősi, E., Török, J., Garamszegi, L. Z. (2024). The estimation of additive genetic variance in body size in a wild passerine is sensitive to the method used to estimate relatedness among the individuals. Ecology and Evolution 14:e10981. (DOI: 10.1002/ece3.10981)
Krenhardt, K., Martínez-Padilla, J., Canal, D., Jablonszky, M., Hegyi, H., Herényi, M., Laczi, M., Markó, G., Nagy, G., Rosivall, B., Szász, E., Szöllősi, E., Török, J., Vaskuti, É., Zsebők, S. & Garamszegi, LZ. (2024). The effect of environmental variation on the selection of risk-taking behaviour in a migratory songbird. Journal of Evolutionary Biology 37:566-576. (DOI: 10.1093/jeb/voae046)
Laczi, M., Sarkadi, F., Herényi, M., Nagy, G., Hegyi, G., Jablonszky, M., Könczey, R., Krenhardt, K., Markó, G., Rosivall, B., Szász, E., Szöllősi, E., Tóth, L., Zsebők, S., Török, J. (2024). Responses in the breeding parameters of the collared flycatcher to the changing climate. Science of the Total Environment 926:171945. (DOI: 10.1016/j.scitotenv.2024.171945)
Hegyi, G., Laczi, M., Herényi, M., Markó, G., Nagy, G., Rosivall, B., Szász, E., Török, J. (2022). Functional integration of multiple sexual ornaments: signal coherence and sexual selection. American Naturalist 200:486-505. (DOI: 10.1086/720620)
Jablonszky, M., Canal, D., Hegyi, G., Krenhardt, K, Laczi, M., Markó, G., Nagy, G., Rosivall, B., Szász, E., Zsebők, S., Garamszegi, L.Z. (2022). Individual differences in song plasticity in response to social stimuli and singing position. Ecology and Evolution 12:e8883. (DOI: 10.1002/ece3.8883)
Jablonszky, M., Canal D., Hegyi, G., Herényi, M., Laczi M., Lao, O., Markó, G., Nagy, G., Rosivall, B., Szász E., Török, J., Zsebők, S., Garamszegi, L. Z. 2022. Estimating heritability of song considering within-individual variation in a wild songbird: the collared flycatcher. Frontiers in Ecology and Evolution 10: 975687. (DOI: 10.3389/fevo.2022.975687)
Laczi, M., Jablonszky, M., Markó, G., Nagy, G., Szabó, Gy., Zsebők, S., Török, J., Hegyi, G. (2022). White plumage color as an honest indicator: feather macrostructure links reflectance with reproductive effort and success. Behavioral Ecology and Sociobiology 76:125. (DOI: 10.1007/s00265-022-03238-x)
Jablonszky, M., Zsebők, S., Laczi, M., Nagy, G.. Vaskuti, É., Garamszegi, L.Z. (2021). The effect of social environment on bird song: listener-specific expression of a sexual signal. Behavioral Ecology 32:395-406. (DOI:10.1093/beheco/araa132)
Zsebők, S., Herczeg, G., Laczi, M., Nagy, G., Vaskuti, É., Hargitai, R., Hegyi, G., Herényi, M., Markó, G., Rosivall, B., Szász, E., Szöllősi, E., Török, J., Garamszegi, L.Z. (2021). Sequential organization of birdsong: relationships with individual quality and fitness traits in collared flycatcher (Ficedula albicollis). Behavioral Ecology 32:82-93. (DOI: 10.1093/beheco/araa104)
Zsebők, S., Schmera, D., Laczi, M., Nagy, G., Vaskuti, É., Török, J., Garamszegi, L.Z. (2021). A practical approach to measuring the acoustic diversity by community ecology methods. Methods in Ecology and Evolution 12:874-884. (DOI: 10.1111/2041-210X.13558)
Jablonszky, M., Krenhardt, K., Markó, G., Szász, E., Hegyi, G., Herényi, M., Kötél, D., Laczi M., Nagy, G., Rosivall, B., Török, J., Garamszegi, L.Z. (2020). A behavioural trait displayed in an artificial novel environment correlates with dispersal in a wild bird. Ethology 126:540-552. (DOI: 10.1111/eth.13005)
Laczi, M., Hegyi, G., Nagy, G., Pongrácz, R., Török, J. (2020). Yellow plumage colour of Great Tits Parus major correlates with changing temperature and precipitation. Ibis 162:232-237.
Pecsics, T., Laczi, M., Nagy, G., Kondor, T., Csörgő, T. (2020). Skull morphometric characters in parrots (Psittaciformes). Ornis Hungarica 28:104-120. (DOI: 10.2478/orhu-2020-0008)
Hegyi, G., Jenni-Eiermann, S., Boross, N., Garamszegi, L.Z., Laczi, M., Kötél, D., Krenhardt, K., Jablonszky, M., Markó, G., Nagy, G., Rosivall, B., Szász, E., Török, J. (2019). Ornaments and condition: plumage patch sizes, nutritional reserve state, reserve accumulation, and reserve depletion. Behavioral Ecology and Sociobiology 73:89. (DOI: 10.1007/s00265-019-2701-0)
Hegyi, G., Laczi, M., Boross, N., Jablonszky, M., Kötél, D., Krenhardt, K., Markó, G., Nagy, G., Rosivall, B., Szász, E., Garamszegi, L.Z., Török, J. (2019). When to measure plumage reflectance: a lesson from collared flycatchers Ficedula albicollis. Ibis 161:27-34. (DOI: 10.1111/ibi.12609)
Nagy, G., Garamszegi, L.Z, Hegyi, G., Herényi, M., Laczi, M., Rosivall, B., Szöllősi, E., Török, J. (2019). Digit ratio predicts the number of lifetime recruits in female collared flycatchers. Biology Letters. 15: 20190051 (DOI: 10.1098/rsbl.2019.0051)
Zsebők, S., Blázi, Gy., Laczi, M., Nagy, G., Vaskuti, É., Garamszegi, L.Z. (2018). “Ficedula” – an open-source MATLAB toolbox for cutting, segmenting and computer-aided clustering of bird song. Journal of Ornithology 159:1105-1111.
Jablonszky, M., Szász E., Krenhardt K., Markó G., Hegyi G., Herényi M., Laczi M., Nagy G., Rosivall B., Szöllősi E., Török J., Garamszegi L.Z. (2018). Unravelling the relationships between life history, behaviour and condition under the pace-of-life syndromes hypothesis using long-term data from a wild bird. Behavioral Ecology and Sociobiology 72:52.
Zsebők, S., Herczeg, G., Blázi, Gy., Laczi, M., Nagy, G., Török, J., Garamszegi, L.Z. (2018). Minimum spanning tree as a new, robust repertoire size comparisonmethod: simulation and test on birdsong. Behavioral Ecology and Sociobiology 72:48.
Garamszegi, L.Z., Zagalska-Neubauer, M., Canal, D., Blázi, Gy., Laczi, M., Nagy, G., Szöllősi, E., Vaskuti, É., Török, J., Zsebők, S. (2018). MHC-mediated sexual selection on bird song: generic polymorphism, particular alleles and acoustic signals. Molecular Ecology 27:2620-2633.
Zsebők, S., Herczeg, G., Blázi, Gy., Laczi, M., Nagy, G., Szász, E., Markó, G., Török, J., Garamszegi, L.Z. (2017). Short- and long-term repeatability and pseudo-repeatability of bird song: sensitivity of signals to varying environments. Behavioral Ecology and Sociobiology 71:154.
Hargitai, R., Nagy, G., Nyiri, Z., Bervoets, L., Eke, Zs., Eens, M., Török, J. (2016). Effects of breeding habitat (woodland versus urban) and metal pollution on the egg characteristics of great tits (Parus major). Science of the Total Environment 544:31-38. (DOI: 10.1016/j.scitotenv.2015.11.116)
Nagy, G., Blázi, Gy., Hegyi, G., Török, J. (2016). Side-specific effect of yolk testosterone elevation on second-to-fourth digit ratio in a wild passerine. The Science of Nature 103:4.
Hargitai, R., Herényi, M., Nagy, G., Nyiri, Z., Eke, Zs., Török, J. (2016). Effects of environmental conditions on the egg mass, yolk antioxidant level, eggshell thickness and eggshell spotting pattern of Great Tits (Parus major). Journal of Ornithology 157:995-1006. (DOI: 10.1007/s10336-016-1348-0)
Hegyi, G., Laczi, M., Nagy, G., Szász, E., Kötél, D., Török, J. (2015). Stable correlation structure among multiple plumage colour traits: can they work as a single signal? Biological Journal of the Linnean Society 114:92-108.
Laczi, M., Hegyi, G., Herényi, M., Kiss, D., Markó, G., Nagy, G., Rosivall, B., Szöllősi, E., Török, J. (2013). Integrated plumage colour variation in relation to body condition, reproductive investment and laying date in the collared flycatcher. Naturwissenschaften 100:(10) 983-991.
Hegyi, G., Nagy, G., Török, J. (2013) Reduced compensatory growth capacity in mistimed broods of a migratory passerine. Oecologia 172:279-291.
Markó, G., Azcárate, M., Hegyi, G., Herczeg, G., Laczi, M., Nagy, G., Senar, J.C., Török, J., Garamszegi, L.Z. (2013). Behavioural responses to handling stress in the Great Tit: within-individual consistency and the effect of age, sex and body condition. Ornis Hungarica 21:12-25.
Boross, N., Markó, G., Laczi, M., Garamszegi, L.Z., Hegyi, G., Herényi, M., Kiss, D., Nagy, G., Rosivall, B., Szöllősi, E., Török, J. (2012). Sources of variation in haematocrit in the Collared Flycatcher (Ficedula albicollis). Ornis Hungarica 20:64-72.