Dr M. Velthuis (Mandy)
Employee - Aquatic Ecology and Environmental Biology
As an aquatic ecologist, I'm interested in the effects of climatic changes on aquatic ecosystems. My work has a strong link to biogeochemical cycling of elements. Using both experimental and numerical (i.e. meta-analytic and modelling) approaches, I assess how environmental changes can impact ecosystem functioning, for instance by altering primary production, carbon cycling and trophic interactions.
Students that are interested in lake carbon cycling and are looking for an internship topic within these topics are encouraged to send me an e-mail. Depending on your research interests, there are opportunities for lab experiments, meta-analyses and numerical modelling.
- Velthuis, M., & Veraart, A. J. (2022). Temperature Sensitivity of Freshwater Denitrification and N2O Emission—A Meta‐Analysis. Global Biogeochemical Cycles, 36(6), e2022GB007339. Full text
- Velthuis, M, Kosten S., Aben, R., Kazanjian, G., Hilt, S., Peeters, E.T.H.M., van Donk, E. & Bakker, E.S. (2018). Warming enhances production, sedimentation and decomposition of organic carbon resulting in a zero net effect on carbon burial. Global Change Biology 24(11): 5231-5242. Full text
- Velthuis, M., de Senerpont Domis, L. N., Frenken, T., Stephan, S., Kazanjian, G., Aben, R., Hilt, S., Kosten, S., van donk, E. & Van de Waal, D. B. (2017). Warming advances top‐down control and reduces producer biomass in a freshwater plankton community. Ecosphere, 8(1), e01651. Full text
Research grants and prizes
- 2020 - NWO-Veni grant: CO2 storage in lakes
- 2018 - IGB postdoctoral fellowship: Macrophyte decomposition by bacteria, the role of stoichiometry and polyphenols
- 2021 - 2025 ‘Rethink the carbon sink: pathways to enhance carbon storage in lake ecosystems’ (NWO-Veni). This project aims to understand the effects of food web interactions on carbon storage in and GHG emissions from lakes. To achieve this goal, I’m using experiments manipulating food web complexity, long-term data analysis and ecosystem modelling.