Eszter Szász

MSc in Biology (2012, Eötvös Loránd University)
research assistant, PhD candidate

Research interests

  • Sex ratio manipulation in birds - ultimate and proximate causes
  • Role of behavioural traits in sex ratio manipulation in birds
  • Sex-specific fitness consequences of behavioural, morphological and environmental variables
  • Consistency of behavioural traits in the courtship and nestling caring periods
  • Sex ratio manipulation in humans - influential factors and fitness consequences


Jablonszky, M., Szász, E., Markó, G., Török, J., Herczeg, G., Garamszegi, L.Z. (2017). Escape ability and risk-taking behaviour in a Hungarian population of the collared flycatcher (Ficedula albicollis). Behavioral Ecology and Sociobiology 71:54.
Szász, E., Szöllősi, E., Hegyi, G., Török, J., Rosivall, B. (2017). Rearing conditions have long-term sex-specific fitness consequences in the collared flycatcher. Behavioral Ecology 28:717-723.
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.
Krenhardt, K., Markó, G., Szász, E., Jablonszky, M., Zsebők, S., Török, J., Garamszegi, L.Z. (2016). A test on within-individual changes in risk-taking behaviour due to experience to predation in the Collared Flycatcher (Ficedula albicollis). Ornis Hungarica 24:115-127. (DOI: 10.1515/orhu-2016-0007)
Garamszegi, L.Z., Zagalska-Neubauer, M. Canal, D., Markó, G., Szász, E., Zsebők, S., Szöllősi, E., Herczeg, G., Török, J. (2015). Malaria parasites, immune challenge, MHC variability, and predator avoidance in a passerine bird. Behavioral Ecology 26:1292-1302. (DOI:10.1093/beheco/arv077)
Szász, E., Rosivall, B. (2015). The chimeric embryo hypothesis as a mechanism of avian sex ratio manipulation? Comment on Tagirov and Rutkowska. Behavioral Ecology 26(5):e1-e3
Garamszegi, L.Z., Markó, G., Szász, E., Zsebők, S., Azcárate, M., Herczeg, G., Török, J. (2015). Among-year variation in the repeatability, within- and between-individual, and phenotypic correlations of behaviors in a natural population. Behavioral Ecology and Sociobiology 69:2005–2017. (DOI 10.1007/s00265-015-2012-z)
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.
Garamszegi, L.Z., Mueller, J.C., Markó, G., Szász, E., Zsebők, S., Herczeg, G., Eens, M., Török, J. (2014). The relationship between DRD4 polymorphisms and phenotypic correlations of behaviors in the collared flycatcher. Ecology and Evolution 4:1466-1479. (open access)
Szász, E., Garamszegi, L.Z., Hegyi, G., Szöllősi, E., Markó, G., Török, J., Rosivall, B. (2014). Aggressive behavior of the male parent predicts brood sex ratio in a songbird. Naturwissenschaften 101:653–660. (doi: 10.1007/s00114-014-1204-0)
Szász, E., Kiss, D., Rosivall, B. (2012). Sex ratio adjustment in birds. Ornis Hungarica 20(1):26-36.

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