Anika Happe
Research Focus
My research combines the analysis of long-term temporal trends in aquatic populations with experimental tests of responses to changing means and variance in environmental factors. Additionally, I am interested in biodiversity assessment approaches and indicators used in scientific studies and in policy frameworks.
Keywords
Community Ecology – Phytoplankton – Biodiversity – Stoichiometry – Multiple Drivers
Project
ACTNOW: Advancing understanding of Cumulative Impacts on European marine biodiversity, ecosystem functions and services for human wellbeing. European Union’s Horizon Europe Research and Innovation Programme.
2022 – AQUACOSM-Plus: European network of mesocosm facilities for research on marine and freshwater ecosystems open for global collaboration, EU Horizon 2020 funded project (e.g. see „SupOpTrons”).
Selected publications
Happe, A., Buttyán, B., Gergácz, B., Langenheder, S., Berger, S.A., Nejstgaard, J.C., and Striebel, M. (2025). Nutrient pulse scenarios drive contrasting patterns in the functional stability of freshwater phytoplankton. Limnology and Oceanography. doi: 10.1002/lno.12782
Happe, A., Meijer, K.J., Dajka, J.-C., Franken, O., Haslob, H., Govers, L.L., Kleyer, M., Kok, A.C.M., Kuczynski, L., Lõhmus, K., Van Der Meij, S.E.T., Olff, H., Rönn, L., Ryabov, A., Sell, A.F., Thieltges, D.W., Eriksson, B.K., and Hillebrand, H. (2025). Synthesis of Population Trends Reveals Seascape-Wide Reorganisation of Biodiversity From Microalgae to Birds. Global Change Biology 31, e70298. doi: 10.1111/gcb.70298
Happe, A., Ahme, A., Cabrerizo, M.J., Gerhard, M., John, U., and Striebel, M. (2024). The experimental implications of the rate of temperature change and timing of nutrient availability on growth and stoichiometry of a natural marine phytoplankton community. Limnology and Oceanography 69, 1769-1781. doi: 10.1002/lno.12613
Short CV
M.S., Marine Environmental Sciences, University of Oldenburg, 2021
B.S., Physical Geography and Landscape Ecology, University of Hanover, 2018