30.8.2017


New paper on optimal feeding strategies in Ecology Letters

Most heterotrophs feed on substrates that are poor in nutrients (especially nitrogen and phosphorus) compared to their demand, which leads to elemental imbalances that may constrain their growth and reproduction. Optimal carbon-to-nutrient ratio in acquired food can be achieved, e.g., by excretion of surplus C during assimilation. The ratio of C used for growth and reproduction over C consumed (CUE, carbon-use efficiency) however varies with substrate and organism stoichiometry. International... more

2.7.2017


Open postdoc position: Quantifying human impacts on freshwater food webs

Open position focusing on the consequences of human impacts on food webs in standing freshwater bodies is available in the group of David Boukal within the Soil and Water National Research Infrastructure project in Ceske Budejovice, Czech Republic.

Focus: consequences of human impacts such as effects of climate change, habitat alteration and eutrophication on freshwater food webs in standing waters. We primarily use freshwater insects in small standing waters as a model system to study... more

5.6.2017


New paper in Ecology Letters

Body size of ectotherms often changes with temperature. This can further affect trophic interaction strengths and the stability of food webs. However, the potential significance and magnitude of this effect has not been studied. Results of simulation models by Arnaud Sentis et al. published in Ecology Letters show that this effect depends on the type of temperature-size responses in the interacting populations and the predator-prey body mass ratios. Our results indicate that temperature-... more

3.12.2016


Student and Erasmus internships in aquatic ecology

Up to four Master internship positions focusing on population ecology and phenotypic plasticity of aquatic invertebrates are available in the group of Dr. David Boukal at the Faculty of Science, University of South Bohemia and Institute of Entomology in Ceske Budejovice (Czech Republic) in the spring and summer of 2017. The students will work under the supervision of David Boukal, Pavel Sroka, Joacim Näslund (Swedish postdoc) and Julien Mocq (French postdoc). We work mainly on aquatic insects... more

5.10.2016


Results of our research on soil microbial communities published in Functional Ecology

New paper by a group of authors from our department, lead by our PhD student Petr Čapek, has been published in Functional Ecology. For the first time, they directly quantify the concentration of available phosphorus at which soil microbial communities become phosphorus limited. This information will enable a substantial improvement of mathematical models describing the dynamics of entire ecosystems. One unexpected result of this study is that soil microbes are able to store P compounds, which... more

18.9.2016


New postdoc financed by the SoWa research infrastructure

Dr. Joacim Näslund has begun his postdoc financed by by the SoWa research infrastructure. He completed his PhD studies at the Department of Biological and Environmental Sciences, University of Gothenburg, Sweden in 2015. His main research interest is behavioural ecology of aquatic animals, in particular fish and freshwater invertebrates. He has been involved in research spanning several areas from animal personality to antipredator behaviour and environmental effects on fish... more

11.7.2016


Our student Pavel Soukup wins the Best Young Speaker prize at the CESAMIR symposium

Our PhD student Pavel Soukup has received the Best Young Speaker award at the 2nd Central European Symposium for Aquatic Macroinvertebrate Research 9CESAMIR) for his presentation on "The effect of predation risk and habitat complexity on community assembly in small standing waters". The meeting, which took place in Pecs in Hungary on 3-8 July 2016, was attended by more than 130 scientists and specialists from 18 European countries.

 

2.5.2016


Open postdoc position: Quantifying human impacts on freshwater ecosystems

Open postdoc position: Quantifying human impacts on freshwater ecosystems

One postdoctoral position focusing on examining the consequences of human impacts on freshwater ecosystems is available in the group of David Boukal at the Faculty of Science, University of South Bohemia, Ceske Budejovice (Czech Republic).

The position is defined broadly and can be tailored to individual interests, including but not limited to the effects of climate change, habitat alteration and eutrophication on... more

28.10.2015


Two of our students win student poster awards at the conference of the Czech Society for Ecology

Our students Jana Zemanová and Pavel Soukup made impact at the 5th conference of the Czech Society of Ecology, organized jointly by our department, University of South Bohemia and Biology Centre of the Czech Academy of Sciences on 23-25 October 2015.

Among some 50 student posters, Jana Zemanová received the 3rd prize for the presentation of her master thesis "The impact of fish predation and littoral vegetation on the structure and behaviour of zooplankton" and Pavel Soukup received the 2nd... more

17.9.2015


Czech daily Lidové noviny reports on our research published in Global Change Biology

The article "Nature can adapt to heat" published in the printed version of Lidové noviny on Wednesday, 2 Sep 2015, comments on our recent research dealing with the impact of varying temperatures on interspecific interactions (online version can be found here). Our paper on the subject has just appeared in the September issue of Global Change Biology (Sentis et al. 2015). We used dragonfly larvae as model organisms to demonstrate how the ability of individuals to acclimate to different thermal... more