Dr Oskar Hagen
Scientific profile
My interdisciplinary interests have led me down a unique career path. Initially, I pursued a formal technical education in informatics for two years, followed by a degree in Conservation Biology. My academic journey then led to a Master’s in Environmental Sciences within the Theoretical Biology group, focusing on Ecology and Evolution in the Department of Integrative Biology. After completing my Master’s, I gained experience in both the public and private sectors. Returning to academia, I earned my PhD, investigating the role of past environmental conditions and eco-evolutionary feedbacks on the emergence of biodiversity. During this time, I developed an eco-evolutionary simulation engine called gen3sis, available as an R package. By integrating this framework with new paleoenvironmental reconstructions and multiple biodiversity datasets, I addressed several complex scientific questions that had previously remained open. I continue to explore these questions at iDiv, working to connect different temporal and spatial dimensions in close collaboration with Jonathan Chase, Renske Onstein, Duarte Viana, and Thorsten Wiegand.
Scientific career
07.2016 – 01.2021
Doctor of Sciences: Environmental Sciences
Swiss Federal Institute of Technology Zürich, ETH, Switzerland
Swiss Federal Institute for Forest, Snow and Landscape Research, WSL, Switzerland
Advisor: Prof. Dr. Loïc Pellissier; Co-Examiners: Dr. Carlos Melian, Prof. Dr. Jens-Christian Svenning and Prof. Dr. Niklaus E. Zimmermann
09.2010 – 09.2013
Master in Environmental Sciences: Ecology and Evolution
Swiss Federal Institute of Technology Zurich, ETH, Switzerland
Advisors: Prof. Dr. Tanja Stadler and Prof. Dr. Sebastian Bonhoeffer
03.2006 – 12.2009
Bachelor in Biology: Conservation Biology
Federal University of São Carlos - campus Sorocaba, UFSCAR, Brazil
Advisors: Prof. Dr. Vadim Viviani and Prof. Dr. Marcelo Nivert
01.2005 – 12.2007
Vocational and Technical Education: Informatics – Communications Networking
SENAI Swiss-Brazilian - Regional Department of São Paulo, SENAI/DR/SP, Brazil
Research fields
Biodiversity Modeling
Conservation Biology
Environmental Sciences
Eco-evolutionary Dynamics
Selected publications
T Keggin, C Waldock, A Skeels A, O Hagen, C Albouy, S Manel, L Pellissier (2023) Diversity across organisational scale emerges through dispersal ability and speciation dynamics in tropical fish. BMC Biology
LM Boschman, FAS Cassemiro, L Carraro, J deVries, F Altermatt, O Hagen, C Hoorn, L Pellissier (2023) Freshwater fish diversity in the western Amazon basin shaped by Andean uplift since the Late Cretaceous. Nature Ecology & Evolution
A Skeels, LM Boschman, IR McFadden, EM Joyce, O Hagen, O Jiménez Robles, W Bach, V Boussange, T Keggin, W Jetz, L Pellissier (2023) Paleoenvironments shaped the exchange of terrestrial vertebrates across Wallace’s Line. Science
O Hagen (2023) Coupling eco-evolutionary mechanisms with deep-time environmental dynamics to understand biodiversity patterns. Ecography
X Li, X Xiang, F Jabbour, O Hagen, RC Ortiz, PS Soltis, DE Soltis, W Wang (2022) Biotic colonization of subtropical East Asian caves through time. PNAS
A Skeels, W Bach, O Hagen, W Jetz, L Pellissier (2022) Temperature-dependent evolutionary speed shapes the evolution of biodiversity patterns across tetrapod radiations. Systematic Biology
L Lyu, F Leugger, O Hagen, F Fopp, LM Boschman, JS Strijk, C Albouy, DN Karger, P Brun, Z Wang, NE Zimmermann, L Pellissier (2022) An integrated high‐resolution mapping shows congruent biodiversity patterns of Fagales and Pinales. New Phytologist
O Hagen*, A Skeels*, RE Onstein, W Jetz, L Pellissier (2021) Earth history events shaped the evolution of uneven biodiversity across tropical moist forests. PNAS
GFA Donati, N Zemp, S Manel, M Poirier, T Claverie, F Ferraton, T Gaboriau, R Govinden, O Hagen, S Ibrahim, D Mouillot, J Leblond, P Julius, L Velez, I Zareer, A Ziyad, F Leprieur, C Albouy, L Pellissier (2021) Species ecology explains the spatial components of genetic diversity in tropical reef fishes. Proceedings of the Royal Society B: Biological sciences
O Hagen, B Flueck, F Fopp, JS Cabral, F Hartig, M Pontarp, TF Rangel, L Pellissier (2021) gen3sis: A general engine for eco-evolutionary simulations of the processes that shape Earth’s biodiversity. PLoS biology
Links
iDiv publications
Hagen, O., Viana, D. S., Wiegand, T., Chase, J. M., Onstein, R. E.
(2024): The macro-eco-evolutionary interplay between dispersal, competition and landscape structure in generating biodiversity. Philosophical Transactions of the Royal Society B: Biological SciencesKeggin, T., Waldock, C., Skeels, A., Hagen, O., Albouy, C., Manel, S., Pellissier, L.
(2023): Diversity across organisational scale emerges through dispersal ability and speciation dynamics in tropical fish. Bmc BiologyBoschman, Lydian M., Carraro, Luca, Cassemiro, Fernanda A. S., de Vries, Jorad, Altermatt, Florian, Hagen, Oskar, Hoorn, Carina, Pellissier, Loïc
(2023): Freshwater fish diversity in the western Amazon basin shaped by Andean uplift since the Late Cretaceous. Nature Ecology & EvolutionSkeels, A., Boschman, L. M., McFadden, I. R., Joyce, E. M., Hagen, O., Jiménez Robles, O., Bach, W., Boussange, V., Keggin, T., Jetz, W., Pellissier, L.
(2023): Paleoenvironments shaped the exchange of terrestrial vertebrates across Wallace’s Line. ScienceLi, X.-Q., Xiang, X.-G., Jabbour, F., Hagen, O., Ortiz, R. d. C., Soltis, P. S., Soltis, D. E., Wang, W.
(2022): Biotic colonization of subtropical East Asian caves through time. Proceedings of the National Academy of SciencesHagen, O.
(2022): Coupling eco-evolutionary mechanisms with deep-time environmental dynamics to understand biodiversity patterns. EcographySkeels, A., Bach, W., Hagen, O., Jetz, W., Pellissier, L.
(2022): Temperature-Dependent Evolutionary Speed Shapes the Evolution of Biodiversity Patterns Across Tetrapod Radiations. Systematic BiologyHagen, O., Skeels, A., Onstein, R. E., Jetz, W., Pellissier, L.
(2021): Earth history events shaped the evolution of uneven biodiversity across tropical moist forests. Proceedings of the National Academy of Sciences
Puschstrasse 4
04103 Leipzig
Germany
B.01.24
Leipzig University
