Forschungsinteressen

Als Makroökologe interessieren mich ökologische Prozesse, die sich auf grossen Skalen abspielen und nicht immer intuitiv fassbar sind. Dabei faszinieren mich fundamentale theoretische Fragen, wie die Gründe für die grossen Unterschiede in Arten- und Formvielfalt, aber auch aktuelle Themen, insbesondere Auswirkungen von Klimawandel und Extremereignissen. Ich mag die Arbeit mit grossen Datensätzen und versuche mich gerne darin, neue statistische Methoden und Modelle in meine Analysen zu integrieren. Ich arbeite hauptsächlich mit Pflanzen, insbesondere mit alpinen Arten, aber aus meinem Doktorat habe ich auch Erfahrung mit marinen Organismen, vor allem mit Phyto- und Zooplankton.  

Berufserfahrung

2021-heute Technischer Mitarbeiter an der WSL
2020-2021 Postdoc zum Thema automatisierte Erkennung von Pflanzenarten an der WSL (Projekt COMECO)
2017-2020 Postdoc zum Thema Biodiversität der alpinen Flora an der WSL (Projekt OriginAlps)
2016-2017 Postdoc zum Thema Meeresökologie am Centre for Ocean Life, DTU Aqua in Charlottenlund (Dänemark)

Ausbildung

2013-2017 Doktorat in Meeresbiologie; Titel der Arbeit : “Plankton biogeography - an exploration of patterns, drivers, functions, and predictability” am Centre for Ocean Life, DTU Aqua in Charlottenlund (Dänemark)
2011-2013 Master in Umweltwissenschaften an der ETH Zürich; Major in Biogeochemie und Schadstoffdynamik; Minor in Bodenschutz und Landnutzung; Masterarbeit über die Verbreitung von Phytoplankton im globalen Ozean
2007-2010 Bachelor in Umweltwissenschaften an der ETH Zürich

 

Publikationen (peer reviewed)

34 Brun, P., L. C. de Witte, M. R. Popp, D. Zurell, D. N. Karger, P. Descombes, R. de Lutio, J. D. Wegner, C. Bornand, S. Eggenberg, T. Olevski, and N. E. Zimmermann. 2025. FlorID – a nationwide identification service for plants from photos and habitat information. Environmental Modelling & Software 106402, doi: 10.1016/j.envsoft.2025.106402
33 Chen L., P. Brun, P. Buri, S. Fatichi, A. Gessler, M. J. McCarthy, F. Pellicciotti, B. D. Stocker, and D. N. Karger. 2025. Global increase in the occurrence and impact of multiyear droughts. Science 387:278-284, doi: 10.1126/science.ado4245
32 Gessler A., M. Wilhelm, P. Brun, N. E. Zimmermann, and A. Rigling. In Press. Zurück in die Zukunft - Ein neuer Blick auf die Perspektiven für die Buche nach 20 Jahren Forschung und weiter fortschreitendem Klimawandel. Allgemeine Forst und Jagdzeitung 193:206-224, doi: 10.23765/afjz000101
31 Adde A., N. Külling, P.-L. Rey, P. Brun, O. Broennimann, A. Lehmann, B. Petitpierre, N. E. Zimmermann, L. Pellissier, F. Altermatt, and A. Guisan. 2024. Projecting Untruncated Climate Change Effects on Species’ Climate Suitability: Insights from an Alpine Country. Global Change Biology 30:17557, doi: 10.1111/gcb.17557
30 Zurell, D., N. E. Zimmermann, and P. Brun. 2024. The niche through time: Considering phenology and demographic stages in plant distribution models. Journal of Ecology 112:1926-1939, doi: 10.1111/1365-2745.14361
29 Dollinger, J., P. Brun, V. Sainte Fare Garnot, and J. D. Wegner. 2024. SAT-SINR: HIGH-RESOLUTION SPECIES DISTRIBUTION MODELS THROUGH SATELLITE IMAGERY. ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci. X-2-2024, doi: 10.5194/isprs-annals-X-2-2024-41-2024
28 Zou, Y., C. Zohner, C. Averill, H. Ma, J. Merder, M. Berdugo, L. Bialic-Murphy, L. Mo, P. Brun, N. E. Zimmermann, J. Liang, S. de-Miguel. G.-J. Nabuurs, P. B. Reich, Ü. Niinemets, J. Dahlgren, G. Kändler, S. Ratcliffe, P. Ruiz-Benito, M. Zavala, GFBi Consortium, and T. W. Crowther. 2024. Positive feedbacks and alternative stable states in forest leaf types. Nature Communications 15:4658, doi: 10.1038/s41467-024-48676-5
27 van Thiel, N., F. Fopp, P. Brun, J. van den Hoogen, D. N. Karger, C. M. Casadei, D. Tuia, N. E. Zimmermann, T. W. Crowther, and L. Pellissier. 2024. Regional uniqueness of tree species composition and response to forest loss and climate change. Nature Communications 15:4375, doi: 10.1038/s41467-024-48276-3
26 Brun, P., D. N. Karger, D. Zurell, P. Descombes, L. C. de Witte, R. de Lutio, J. D. Wegner, and N. E. Zimmermann. 2024. Multispecies deep learning using citizen science data produces more informative plant community models. Nature Communications 15:4421, doi: 10.1038/s41467-024-48559-9
25 Zemlianskii, V., P. Brun, N. E. Zimmermann, K. Ermokhina, O. Khitun, N. Koroleva, and G. Schaepman-Strub. 2024. Current and past climate co-shape community-level plant species richness in the Western Siberian Arctic. Ecology and Evolution 14:e11140, doi: 10.1002/ece3.11140
24 Dechamps, G., G. Poggiato, P. Brun, C. Galiez, and W. Thuiller. 2023. Predict first–assemble later versus assemble first–predict later: Revisiting the dilemma for functional biogeography. Methods in Ecology and Evolution 14:2680-2696, doi: 10.1111/2041-210X.14203
23 Adde, A., P.-L. Rey, P. Brun, N. Külling, F. Fopp, F. Altermatt, O. Broennimann, A. Lehmann, B. Petitpierre, N. E. Zimmermann, L. Pellissier, and A. Guisan. 2023. N-SDM: a high-performance computing pipeline for Nested Species Distribution Modelling Ecography doi: 10.1111/ecog.06540
22 Rodriguez Torres, R., R. Almeda, J. Xu, N. Hartmann, S. Rist, P. Brun, and T. Nielsen. 2023. The behavior of planktonic copepods minimizes the entry of microplastics in marine food webs Environmental Science & Technology 57:179-189, doi: 10.1021/acs.est.2c04660
21 Kyathanahally, S., T. Hardeman, M. Reyes, E. Merz, T. Bulas, P. Brun, F. Pomati, and M. Baity-Jesi. 2022. Ensembles of Vision Transformers as a New Paradigm for Automated Classification in Ecology. Scientific reports 12:18590, doi: 10.1038/s41598-022-21910-0
20 Meusburger, K., V. Trotsiuk, P. Schmidt-Walter, A. Baltensweiler, P. Brun, F. Bernhard, M. Gharun, R. Habel, F. Hagedorn, R. Köchli, A. Psomas, H. Puhlmann, A. Thimonier, P. Waldner, S. Zimmermann, and L. Walthert. 2022.  Soil-plant interactions modulated water availability of Swiss forests during the 2015 and 2018 droughts. Global Change Biology , doi: 10.1111/gcb.16332
19 Brun, P., N. E. Zimmermann, C. Hari, L. Pellissier, and D. N. Karger. 2022. Global climate-related predictors at kilometer resolution for the past and future. Earth Syst. Sci. Data 56:6455-6465, doi: 10.5194/essd-14-5573-2022
18 Xu, J., R. Rodriguez Torres, S. Rist, T. Nielsen, N. Hartmann, P. Brun, D. Li, and R. Almeda. 2022. Unpalatable plastic: efficient taste-discrimination of microplastics in planktonic copepods Environmental Science & Technology  56:6455-6465, doi: 10.1021/acs.est.2c00322
17 Lyu, L., F. Leugger, O. Hagen, F. Fopp, L. M. Boschman, J. S. Srijk, C. Albouy, D. N. Karger, P. Brun, Z. Wang, N. E. Zimmermann, and L. Pellissier. 2022. An integrated high‐resolution mapping shows congruent biodiversity patterns of Fagales and Pinales New Phytologist  235:759-772, doi: 10.1111/nph.18158
16 Brun, P., C. Violle, D. Mouillot, N. Mouquet, B. J. Enquist, F. Munoz, T. Münkemüller, A. Ostling, N. E. Zimmermann, and W. Thuiller. 2022. Plant community impact on productivity: trait diversity or key(stone) species effects? Ecology Letters 24:913-925, doi: 10.1111/ele.13968
15 de Lutio, R., Y. She, S. D'Aronco, S. Russo, P. Brun, J. D. Wegner, and K. Schindler. 2021. Digital taxonomist: Identifying plant species in community scientists’ photographs. ISPRS Journal of Photogrammetry and Remote Sensing 182:112-121, doi: 10.1016/j.isprsjprs.2021.10.002
14 Chauvier, Y., N. E. Zimmermann, G. Poggiato, D. Bystrova, P. Brun, and W. Thuiller. 2021. Novel methods to correct for observer and sampling bias in presence-only species distribution models. Global Ecology and Biogeography 30:2312-2325, doi: 10.1111/geb.13383
13 Polanco, A. F., F. Fopp, C. Albouy, P. Brun, L. Boschman, and L. Pellissier. 2020. Marine fish diversity in Tropical America associated with both past and present environmental conditions. Journal of Biogeography 47:2597-2610, doi: 10.1111/jbi.13985
12 Visser, A. W., P. Brun, S. Chakraborty, T. S. Dencker, P. D. van Denderen, R. van Gemert, H. van Someren Gréve, I. Heilmann, M. W. Holm, S. H. Jónasdóttir, K. M. Kenitz, T. Kiørboe, M. Lindegren, P. Mariani, L. T. Nielsen, M. Pancic, M. R. Payne, L. Pécuchet, N. A. Schnedler-Meyer, U. H. Thygesen, A. Törnroos and Andersen K. H. 2020. Seasonal strategies in the world’s oceans. Progress in Oceanography 189:102466, doi:10.1016/j.pocean.2020.102466
11 Brun, P., A. Psomas, C. Ginzler, W. Thuiller, M. Zappa, and N. E. Zimmermann. 2020. Large-scale early-wilting response of Central European forests to the 2018 extreme drought. Global Change Biology 26:7021-7035, doi: 10.1111/gcb.15360
10 Chauvier, Y., W. Thuiller, P. Brun, S. Lavergne, P. Descombes, D. N. Karger, J. Renaud, and N. E. Zimmermann. 2020. Influence of climate, soil, and land cover on plant species distribution in the European Alps. Ecological Monographs, doi: 10.1002/ecm.1433
9 Brun, P., W. Thuiller, Y. Chauvier, L. Pellissier, R. O. Wüest, Z. Wang, and N. E. Zimmermann. 2020. Model complexity affects species distribution projections under climate change. Journal of Biogeography 47:130-142, doi: 10.1111/jbi.13734
8 Brun, P., N. E. Zimmermann, C. H. Graham, S. Lavergne, L. Pellissier, T. Münkemüller, and W. Thuiller. 2019. The productivity-biodiversity relationship varies across diversity dimensions. Nature Communications 10:5691, doi: 10.1038/s41467-019-13678-1
7 Brun, P., K. Stamieszkin, A. W. Visser, P. Licandro, M. R. Payne, and T. Kiørboe. 2019. Climate change has altered zooplankton-fuelled carbon export in the North Atlantic. Nature Ecology & Evolution 3:416-423, doi:10.1038/s41559-018-0780-3
6 Holm, M. W., T. Kiørboe, P. Brun, P. Licandro, R. Almeda, and B. W. Hansen. 2017. Resting eggs in free living marine and estuarine copepods. Journal of Plankton Research, 1–14, doi:10.1093/plankt/fbx062
5 Brun, P., M. R. Payne, and T. Kiørboe. 2017. A trait database for marine copepods. Earth System Science Data 9:99-113, doi:10.5194/essd-9-99-2017
4 Brun, P., M. R. Payne, and T. Kiørboe. 2016. Trait biogeography of marine copepods - an analysis across scales. Ecology Letters 19:1403–1413, doi:10.1111/ele.12688
3 Brun, P., T. Kiørboe, P. Licandro, and M. R. Payne. 2016. The predictive skill of species distribution models for plankton in a changing climate. Global Change Biology 22:3170–3181, doi:10.1111/gcb.13274
2 Brun, P., T. Kiørboe, and M. R. Payne. 2015. Measuring evolutionary adaptation of phytoplankton with local field observations. PNAS 201513353, doi:10.1073/pnas.1513353112
1 Brun, P., M. Vogt, M. R. Payne, N. Gruber, C. J. O’Brien, E. T. Buitenhuis, C. Le Quéré, K. Leblanc, and Y.-W. Luo. 2015. Ecological niches of open ocean phytoplankton taxa. Limnology and Oceanography 60:1020–1038, doi:10.1002/lno.10074

Projekte

As the climate continues to change, Switzerland edges closer to a future in which extreme drought in the Alps is increasingly likely – and could push water and ecological systems to their limits. The EMERGE project studies past extreme droughts in mountain regions to help us better understand, and prepare for, potential impacts in the future.

In Zusammenarbeit mit Info Flora entwickeln wir eine Webplattform und ein Identifikationsmodul für die beliebte FlorApp, um die Fähigkeit einer künstlichen Intelligenz zur Identifikation von Schweizer Pflanzenarten anhand von Bildern und Koordinaten verfügbar zu machen.

Wir entwickeln eine Softwareumgebung in der Tools zur automatischen Identifizierung von Arten verschiedener Organismengruppen eingebettet, und Nutzern im Feld via Mobiltelefon zugänglich gemacht werden.

In diesem Projekt wird eine globale Analyse zu Ökosystem-Störungen mit einer neuen Biom-Theorie kombiniert, um präziser vorhersagen zu können, wo auf der Erde welche Störungen aufgrund des fortschreitenden Klimawandels auftreten können.

ECHOES integrates climate impact models with audio-visual art, using speculative design to convey complexities and engage diverse audiences.

Publikationen

Brun P., de Witte L., Popp M.R., Zurell D., Karger D.N., Descombes P., … Zimmermann N.E. (2025) FlorID – A nationwide identification service for plants from photos and habitat information. Environ. Model. Softw. 188, 106402 (25 pp.). doi:10.1016/j.envsoft.2025.106402 Institutional Repository DORA

Chen L., Brun P., Buri P., Fatichi S., Gessler A., McCarthy M.J., … Karger D.N. (2025) Global increase in the occurrence and impact of multiyear droughts. Science. 387(6731), 278-284. doi:10.1126/science.ado4245 Institutional Repository DORA

Adde A., Külling N., Rey P.‐L., Fopp F., Brun P., Broennimann O., … Guisan A. (2024) Projecting untruncated climate change effects on species' climate suitability: insights from an alpine country. Glob. Chang. Biol. 30(11), e17557 (16 pp.). doi:10.1111/gcb.17557 Institutional Repository DORA

Brun P., Karger D.N., Zurell D., Descombes P., de Witte L.C., de Lutio R., … Zimmermann N.E. (2024) Multispecies deep learning using citizen science data produces more informative plant community models. Nat. Commun. 15, 4421 (15 pp.). doi:10.1038/s41467-024-48559-9 Institutional Repository DORA

Dollinger J., Brun P., Sainte Fare Garnot V., Wegner J.D. (2024) Sat-SINR: high-resolution species distribution models through satellite imagery. In A. Yilmaz, J. D. Wegner, & R. Qin (Eds.), ISPRS Annals: Vol. X-2-2024. ISPRS annals of the photogrammetry, remote sensing and spatial information sciences. Hannover: Copernicus. 41-48. doi:10.5194/isprs-annals-X-2-2024-41-2024 Institutional Repository DORA

Gessler A., Wilhelm M., Brun P., Zimmermann N., Rigling A. (2024) Zurück in die Zukunft – Ein neuer Blick auf die Perspektiven für die Buche nach 20 Jahren Forschung und weiter fortschreitendem Klimawandel. Allg. Forst- Jagdztg. 193(9-12), 206-224. doi:10.23765/afjz000101 Institutional Repository DORA

Zemlianskii V., Brun P., Zimmermann N.E., Ermokhina K., Khitun O., Koroleva N., Schaepman-Strub G. (2024) Current and past climate co-shape community-level plant species richness in the Western Siberian Arctic. Ecol. Evol. 14(3), e11140 (12 pp.). doi:10.1002/ece3.11140 Institutional Repository DORA

Zou Y., Zohner C.M., Averill C., Ma H., Merder J., Berdugo M., … Zo-Bi I.C. (2024) Positive feedbacks and alternative stable states in forest leaf types. Nat. Commun. 15, 4658 (15 pp.). doi:10.1038/s41467-024-48676-5 Institutional Repository DORA

Zurell D., Zimmermann N.E., Brun P. (2024) The niche through time: considering phenology and demographic stages in plant distribution models. J. Ecol. 112(9), 1926-1939. doi:10.1111/1365-2745.14361 Institutional Repository DORA

van Tiel N., Fopp F., Brun P., van den Hoogen J., Karger D.N., Casadei C.M., … Pellissier L. (2024) Regional uniqueness of tree species composition and response to forest loss and climate change. Nat. Commun. 15, 4375 (12 pp.). doi:10.1038/s41467-024-48276-3 Institutional Repository DORA

Adde A., Rey P.L., Brun P., Külling N., Fopp F., Altermatt F., … Guisan A. (2023) N-SDM: a high-performance computing pipeline for Nested Species Distribution Modelling. Ecography. 2023(6), e06540 (11 pp.). doi:10.1111/ecog.06540 Institutional Repository DORA

Deschamps G., Poggiato G., Brun P., Galiez C., Thuiller W. (2023) Predict first–assemble later versus assemble first–predict later: revisiting the dilemma for functional biogeography. Methods Ecol. Evol. 14(10), 2680-2696. doi:10.1111/2041-210X.14203 Institutional Repository DORA

Rodríguez Torres R., Almeda R., Xu J., Hartmann N., Rist S., Brun P., Nielsen T.G. (2023) The behavior of planktonic copepods minimizes the entry of microplastics in marine food webs. Environ. Sci. Technol. 57(1), 179-189. doi:10.1021/acs.est.2c04660 Institutional Repository DORA

Brun P., Zimmermann N.E., Hari C., Pellissier L., Karger D.N. (2022) Global climate-related predictors at kilometer resolution for the past and future. ESSD. 14(12), 5573-5603. doi:10.5194/essd-14-5573-2022 Institutional Repository DORA

Brun P., Violle C., Mouillot D., Mouquet N., Enquist B.J., Munoz F., … Thuiller W. (2022) Plant community impact on productivity: trait diversity or key(stone) species effects? Ecol. Lett. 25(4), 913-925. doi:10.1111/ele.13968 Institutional Repository DORA

Kyathanahally S.P., Hardeman T., Reyes M., Merz E., Bulas T., Brun P., … Baity-Jesi M. (2022) Ensembles of data-efficient vision transformers as a new paradigm for automated classification in ecology. Sci. Rep. 12(1), 18590 (11 pp.). doi:10.1038/s41598-022-21910-0 Institutional Repository DORA

Lyu L., Leugger F., Hagen O., Fopp F., Boschman L.M., Strijk J.S., … Pellissier L. (2022) An integrated high‐resolution mapping shows congruent biodiversity patterns of Fagales and Pinales. New Phytol. 235(2), 759-772. doi:10.1111/nph.18158 Institutional Repository DORA

Meusburger K., Trotsiuk V., Schmidt-Walter P., Baltensweiler A., Brun P., Bernhard F., … Walthert L. (2022) Soil–plant interactions modulated water availability of Swiss forests during the 2015 and 2018 droughts. Glob. Chang. Biol. 28(20), 5928-5944. doi:10.1111/gcb.16332 Institutional Repository DORA

Xu J., Rodríguez-Torres R., Rist S., Nielsen T.G., Hartmann N.B., Brun P., … Almeda R. (2022) Unpalatable plastic: efficient taste discrimination of microplastics in planktonic copepods. Environ. Sci. Technol. 56(10), 6455-6465. doi:10.1021/acs.est.2c00322 Institutional Repository DORA

Chauvier Y., Thuiller W., Brun P., Lavergne S., Descombes P., Karger D.N., … Zimmermann N.E. (2021) Influence of climate, soil, and land cover on plant species distribution in the European Alps. Ecol. Monogr. 91(2), e01433 (14 pp.). doi:10.1002/ecm.1433 Institutional Repository DORA

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