Research interests

  • Statistical modelling of forest processes and dynamics
  • Better understanding the influence of climate on background tree mortality in forests
  • Characterising near-natural forests using the Swiss National Forest Inventory data
  • Bridging tree diversity indicators between different inventories

 

 

Education and Experience

Since 2021

Research scientist

Resource Analysis, WSL, Switzerland

Since 2019

PostDoc, Project DivScaling

Resource Analysis, WSL, Switzerland

Since 2018

PostDoc, Project SessFor

Resource Analysis, WSL, Switzerland

2017 - 2018

Research Assistant on fire ecology

Centre for Forest Research, Université du Québec à Montréal, Canada

2012 - 2017

PhD in Environmental Science

Thesis: Activity, driving factors and consequences of wildfires in the boreal forests of Quebec at the interface between closed and open forests

Centre for Forest Research, Université du Québec à Montréal, Canada

2008 - 2010

Master in “Biodiversity, Ecology, Environment”

Université Joseph Fourier, Grenoble, France

  • Research project on climate in the Craiegieburn region of New Zealand: trends, periodicity and ecological implications (2010)

    Landcare Research – Manaaki Whenua, Lincoln, New Zealand

  • Research project on the climate influence on tree regeneration dynamics of French Alps forests (2009)

    Cemagref, Grenoble, France

 
2005 - 2008

Bachelor in Biological Sciences

Université de Savoie, Chambéry, France

 

Projekte

The main objective of this project is to elaborate how different diversity components in Swiss forest change with increasing area and how they depend on changing heterogeneity.

Options for the use of wood in construction will be investigated, developed and tested as a contribution to a functioning circular economy and the Swiss bioeconomy. The aim is to identify the most important leverage points in the value chain to increase the use of wood in construction and to develop ecologically optimal scenarios for the use of wood in Switzerland.

Publikationen

Margolis E., Wion A., Abatzoglou J., Daniels L., Falk D., Guiterman C., … Yocom L. (2025) Spatiotemporal synchrony of climate and fire occurrence across North American forests (1750–1880). Glob. Ecol. Biogeogr. 34(1), e13937 (14 pp.). doi:10.1111/geb.13937 Institutional Repository DORA

Rougemont V., Portier J., Stadelmann G., Aubry M. (2025) Approches suisse et française pour l'adaptation des forêts aux changements climatiques. Schweiz. Z. Forstwes. 176(1), 44-47. doi:10.3188/szf.2025.0044 Institutional Repository DORA

Annen M., Golay A.M., Portier J., Finger A. (2024) «Eau en forêt: enjeux et défis?» Retour sur la 25e journée du Forum Forestier Lémanique. Bull. Soc. Vaud. Sci. Nat. 103, 67-71. doi:10.5169/seals-1061943 Institutional Repository DORA

Flury R., Portier J., Rohner B., Baltensweiler A., Di Bella Meusburger K., Scherrer D., … Stadelmann G. (2024) Soil and climate‐dependent ingrowth inference: broadleaves on their slow way to conquer Swiss forests. Ecography. 2024(7), e07174 (14 pp.). doi:10.1111/ecog.07174 Institutional Repository DORA

Idoate-Lacasia J., Stillhard J., Portier J., Brang P., Zimmermann S., Bigler C., … Hobi M.L. (2024) Long-term biomass dynamics of temperate forests in Europe after cessation of management. For. Ecol. Manag. 554, 121697 (11 pp.). doi:10.1016/j.foreco.2024.121697 Institutional Repository DORA

Klesse S., Portier J., Shackleton R. (2024) Bohren beeinflusst weder das Wachstum noch die Sterblichkeit. Wald Holz. 77(6), 40-41. Institutional Repository DORA

Portier J., Shackleton R., Klesse S. (2024) Croissance et mortalité des arbres pas influencées par le carottage. Forêt. 77(6), 40-41. Institutional Repository DORA

Portier J., Finger-Stich A. (2024) Der Nutzen des Waldes für die psychische Gesundheit. Wald Holz. 77(5), 26-28. Institutional Repository DORA

Portier J., Shackleton R.T., Klesse S., Ferretti M., Flury R., Hobi M.L., … Thürig E. (2024) No evidence that coring affects tree growth or mortality in three common European temperate forest tree species. Eur. J. For. Res. 143, 129-139. doi:10.1007/s10342-023-01612-6 Institutional Repository DORA

Portier J., Finger-Stich A. (2024) Regards croisés sur les bienfaits de la forêt pour la santé mentale. Forêt. 77(5), 26-28. Institutional Repository DORA

Rohner B., Wüest Karpati R., Abegg M., Portier J. (2024) Web-App zur erwarteten Baumartenvielfalt in Abhängigkeit der Waldfläche. Schweiz. Z. Forstwes. 175(5), 268-269. doi:10.3188/szf.2024.0268 Institutional Repository DORA

Stadelmann G., Portier J., Rohner B., Frehner M., Ibrahim M., Klesse S., … Flury R. (2024) Ökologisch kohärente Baumartengruppen für die praxisnahe Forschung. Schweiz. Z. Forstwes. 175(6), 312-313. doi:10.3188/szf.2024.0312 Institutional Repository DORA

Stillhard J., Portier J., Murzynowska I., Projer G., Hobi M. (2024) Monitoring de la structure forestière et de sa composition spécifique dans le Parc naturel du Jorat lors de sa création. Bull. Soc. Vaud. Sci. Nat. 103, 121-127. doi:10.5169/seals-1061949 Institutional Repository DORA

Montoro Girona M., Aakala T., Aquilué N., Bélisle A.C., Chaste E., Danneyrolles V., … Gauthier S. (2023) Challenges for the sustainable management of the boreal forest under climate change. In M. Montoro Girona, H. Morin, S. Gauthier, & Y. Bergeron (Eds.), Advances in global change research: Vol. 74. Boreal forests in the face of climate change. Sustainable management. Cham: Springer. 773-837. doi:10.1007/978-3-031-15988-6_31 Institutional Repository DORA

Chavardès R.D., Danneyrolles V., Portier J., Girardin M.P., Gaboriau D.M., Gauthier S., … Bergeron Y. (2022) Converging and diverging burn rates in North American boreal forests from the Little Ice Age to the present. Int. J. Wildland Fire. 31(12), 1184-1193. doi:10.1071/WF22090 Institutional Repository DORA

Finger A., Portier J., Radet M., Aubry M., Charvoz M., Gay J.L., … Zimmermann N. (2022) Changements climatiques et forêts : perception et expériences des gestionnaires de terrain. Nat. Patrim. Pays Savoie. (68), 14-20. Institutional Repository DORA

Margolis E.Q., Guiterman C.H., Chavardès R.D., Coop J.D., Copes‐Gerbitz K., Dawe D.A., … Weisberg P.J. (2022) The North American tree‐ring fire‐scar network. Ecosphere. 13(7), e4159 (36 pp.). doi:10.1002/ecs2.4159 Institutional Repository DORA

Portier J., Zellweger F., Zell J., Alberdi Asensio I., Bosela M., Breidenbach J., … Rohner B. (2022) Plot size matters: toward comparable species richness estimates across plot‐based inventories. Ecol. Evol. 12(6), e8965 (12 pp.). doi:10.1002/ece3.8965 Institutional Repository DORA

Portier J., Wunder J., Stadelmann G., Zell J., Abegg M., Thürig E., Rohner B. (2021) 'Latent reserves': A hidden treasure in National Forest Inventories. J. Ecol. 109, 369-383. doi:10.1111/1365-2745.13487 Institutional Repository DORA

Stadelmann G., Portier J., Didion M., Rogiers N., Thürig E. (2021) From Paris to Switzerland: four pathways to a forest reference level. Front. For. Glob. Change. 4, 685574 (13 pp.). doi:10.3389/ffgc.2021.685574 Institutional Repository DORA

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