András ABONYI, PhD

IAE Department of Community Ecology
abonyi.andras [at]
Brief description of the main scopes: 

I am an aquatic ecologist with a solid background in phytoplankton ecology and taxonomy. Currently, I am eager to 1) link ecosystem functioning to functional diversity (BEF) in planktic algal assemblages of lakes and rivers, 2) quantify the diet quality effect of chytrid algal parasites at the phytoplankton-zooplankton interface in pelagic food webs, and 3) better understand the long-term response of large rivers to human impacts and global warming at the ecosystem scale, among others e.g. in the River Danube.

Main profile in keywords: 
community ecology, biodiversity—ecosystem functioning, phytoplankton, chytrid algal parasites
Selected publications:


Abonyi A., Kiss K.T., Hidas A., Borics G., Várbíró G. & Ács É. (2020): Cell size decrease and altered size structure of phytoplankton constrain ecosystem functioning in the middle Danube River over multiple decades Ecosystems, doi: 10.1007/s10021-019-00467-6


Abonyi A., Ács É., Hidas A., Grigorszky I., Várbíró G., Borics G. & Kiss K.T. (2018): Functional diversity of phytoplankton highlights long-term gradual regime shift in the middle section of the Danube River due to global warming, human impacts and oligotrophication Freshwater Biology 63(5):456-472 doi:10.1111/fwb.13084
Abonyi A; Horváth Zs; Ptacnik R (2018): Functional richness outperforms taxonomic richness in predicting ecosystem functioning in natural phytoplankton communities Freshwater Biology 63(2):178–186 doi:10.1111/fwb.13051.


Abonyi, A., Leitão, M., Stanković, I., Borics, G., Várbíró, G. and Padisák, J. (2014): A large river (River Loire, France) survey to compare phytoplankton functional approaches: Do they display river zones in similar ways? Ecological Indicators, 46, 11-22.


Abonyi, A., Leitão, M., Lançon, A. M. and Padisák, J. (2012): Phytoplankton functional groups as indicators of human impacts along the River Loire (France) Hydrobiologia, 698, 233-249.