Jiří Hadrava

Research Interests

I am studying the structure of plant-pollinator networks across various spatial scales. So far I focused on small-scale heterogeneity in the structure of plant-pollinator networks, on temporal changes and on biology of important polllinators, especially syrphid flies (Syrphidae, Diptera).

I have also been involved in numerous other projects, for example a study on phylogeography of the praying mantis, mark-recapture project on diving beetles, and monitoring of insects in postindustrial sites.

Employment

since 2014: Laboratory of Temperate Biodiversity, Institute of Entomology, Biology Centre of the Czech Academy of Sciences, České Budějovice, Czech Republic

2011: Meadow Ecology Group, Department of Botany, Faculty of Science, Charles University in Prague, Czech Republic

Education

since 2013: MSc. study of Zoology, Department of Zoology, Faculty of Science, Charles University in Prague, Czech Republic (expected to finish in September 2015)

2010 – 2013: BSc. study of Biology, Faculty of Science, Charles University in Prague, Czech Republic; BSc thesis: Ecology of pollination networks (in Czech)

Awards

International Statistical Ecology Conference, Oslo 2012 – Best student poster award

The quarry life award 2012, 3rd prize for a project: Insect monitoring in the Špička quarry

High school research projects competiton 2010 – 2nd prize in the national round for a project: Hadrava J. (2010) Estimating the size of closed populations (from theory to applications).

Publications

Janovský Z., Mikát M., Hadrava J., Horčičková E., Kmecová K., Požárová D., Smyčka J. & Herben T. (2013) Conspecific and Heterospecific Plant Densities at Small-Scale Can Drive Plant-Pollinator Interactions. PLoS ONE 8(10): e77361

Conference contributions

Tropek R., Černá I., Čížek O., Hadrava J., Kadlec J., Kocarek J., Malenovský I., Marhoul P., Pech P., Plátek P., Rehounek J., Skuhrovec J., Straka J., Šebek P., Tichánek P. (2014): Can fly ash deposits harbour vanishing arthropods of continental sand dunes? Biodiversity of arthropods of fly ash deposits in the Czech Republic with evaluation of different restoration practice. Talk, 9th European Conference on Ecological Restoration, Oulu, Finland

Hadrava J., Mikát M., Janovský Z. (2014): How does species composition of pollinators change at small spatial scales? Talk (in Czech), Zoological Days, Ostrava, Czech Republic

Hadrava J., Jablonski D., Linn C., Urbánková H., Janšta P. (2013): Phylogeography of the praying mantis (Mantis religiosa) in Europe. Poster (in Czech), Zoological Days, Brno, Czech Republic

Hadrava J., Janovský Z., Mikát M. (2013): The diversity of pollination network structure within a single meadow. Poster (in Czech), Zoological Days, Brno, Czech Republic

Horčičková E., Janovský Z., Pavlíková A., Mikát M., Hadrava J., Kmecová K., Požárová D., Smyčka J., Herben T. (2013): Factors influencing abundances of hoverfly pollinators in agricultural landscape: Do unmown verges provide quality catering? Poster, Zological Days, Brno, Czech Republic

Janovský Z., Horčičková E., Pavlíková A., Uhlíková N., Gruberová P., Mikát M., Kmecová K., Hadrava J., Smyčka J., Požárová D., Herben T. (2013): Syrphid flies (Syrphidae) and pollination in agricultural landscapes – Do we need meadows or are grassland stripes along roads sufficient? Talk (in Czech), Zoological Days, Brno, Czech Republic

Hadrava J., Kazda A., Pavlíková A., Mikát M., Gruberová P., Janovský Z., Uhlíková N., Herben T. (2012): Improving mark-release-recapture estimates of short-lived highly mobile pollinators using additional information on weather and landscape composition. Poster, International Statistical Ecology Conference, Oslo, Norway

Hadrava J., Jablonski D., Janšta P., Urbánková H. (2012): Study of historical and current spread of the praying mantis, Mantis religiosa (Linnaeus, 1758), in Europe. Poster (in Czech), Zoological Days, Olomouc, Czech Republic

Hadrava J., Mikát M., Pavlíková A., Uhlíková N., Gruberová P., Janovský Z., Korábek O., Faltýnková J., Dvořák T., Matoušková E., Požárová D. (2012): Spatial activity of syrphid flies of the genus Eristalis (Diptera: Syrphidae). Poster (in Czech), Zoological Days, Olomouc, Czech Republic

Mikát M., Hadrava J., Janovský Z., Kazda A., Aldorfová K., Mikátová Š., Martinek J. (2011): Spatial activity of several species of genera Eristalis and Helophilus. Poster, 6th International Syrphid Symposium, University of Glasgow, Scotland

Hadrava J., Janovský Z., Mikát M., Faltýnková J., Černá I., Kazda A., Korábek O., Mikátová Š., Horčičková E., Ponert J.H., Aldorfová K., Kmecová K., Holub T., Martinek J. (2011): Spatial and daily activity of syrphid flies in a wet meadow. Talk (in Czech), Zoological Days, Brno, Czech Republic

Workshops

June 2013: Species distribution modelling course, Prague, Czech Republic

July 2012: Hierarchical modelling and R-package ‘unmarked’, Finse, Norway

Other professional activities

2010 – 2012: providing identification courses of Syrphidae (Diptera)

Popularization of science
since 2009: organization of various biological activities for high school students – lectures, workshops, small research projects (e.g. Arachne, Biozvěst)