All Research Unit Colloquia ¶
| Datum 2024 | Zeit, Ort | Dauer | Titel | Autor |
| 30.01.2024 | 10:50, Engler-Saal | 25' | Phenological plasticity: shifting growth and developmental phases of North American tree species in response to environmental stressors | Dr. Frederik Baumgarten, Univ. British Columbia, CA |
| 05.03.2024 | 10:30, Engler-Saal | 25' | Future suitability of the tree species composition in Swiss forests | Dr. Christian Walter Temperli, Forest Resources and Management, Scientific Service NFI |
| 25.03.2024 | 10:30, Engler-Saal | 25' | The interplay of naturalness and disturbances in transforming forests under climate change | Dr. Daniel Scherrer, WSL Forest Resources and Management, Plant regeneration ecology |
| 16.04.2024 | 10:30, Engler-Saal | 25' | When peer review fails – the community steps in | Dr. Stefan Klesse, Forest Dynamics, Dendrosciences |
| 21.05.2024 | 10:30, Engler-Saal | 25' | Hydraulic constraints at low root temperatures might hold the answer for the cold limit of tree growth | PD Dr. Günter Hoch, University Basel |
| 02.07.2024 | 10:30, Engler-Saal | 25' | The hydrogen story – Exploring the non-climatic signals of δ2H in tree rings. | Dr. Valentina Vitali, ETHZ |
| 27.08.2024 | 10:30, Engler-Saal | 25' | Multiyear droughts and ecosystem responses – A global look | Dr. Liangzhi Chen, Forest Dynamics, Ecosystem Ecology |
| 24.09.2024 | 8:30, Engler-Saal | 25' | New approaches for monitoring forest functioning in a changing climate - crossing scales from molecular mechanisms to stand wide processes | Prof. Dr. Arthur Gessler, Forest Dynamics, Ecosystem Ecology |
| 29.10.2024 | 10:30, Engler-Saal | 45' | SwissPhenocam: Country-scale automated tree-phenology tracking from webcam imagery | Vivien Sainte Fare Garnot (University Zurich) & Jelle Lever (WSL) |
| 03.12.2024 | 10:30, Engler-Saal | 25' | Helena Vallicrosa (EPFL) | |
Date 2023 | Time, Room | Duration | Title | Author |
| 31.01.2023 | 10:30, Engler-Saal | 25' | The implications of seasonal differences in climate change for the plant seasonal cycle | Dr. Jelle Lever, RG Ecosystem Ecology |
| 27.02.2023 | 10:30, Engler-Saal | 25' | Soil microbiome diversity across Europe and implications for forest functioning | Dr. Mark Anthony, RG Ecosystem Ecology |
| 21.03.2023 | 10:30, Engler-Saal | 25' | 3D printing as a driver for technical innovations in Dendrosciences | Dr. H. Gärtner & L. Schneider, RG Dendrosciences |
| 17.04.2023 | 10:30, Engler-Saal | 25' | Foliar Uptake and Transport to the Wood of Airborne Nanoparticles in Forest Trees | Paula Ballikaya, RG Dendrosciences |
| 23.05.2023 | 10:30, Engler-Saal | 25' | Underrepresented drivers of plant phenology: beyond climate | Yunpeng Luo, RG Ecosystem Ecology |
| 27.06.2023 | 10:30, Engler-Saal | 25' | «Integrated Forest Management» - what does it mean? | Dr. Frank Krumm, RG Ecosystem Ecology |
| 22.08.2023 | 10:30, Engler-Saal | 25' | Inconsistent shifts in warming and temperature variability negatively impact avian fitness | Dr. Ryan Shipley, RG Mountain Ecosystems |
| 26.09.2023 | 10:30, Engler-Saal | 25' | Towards a mechanistic sound drought tolerance classification of temperate tree species | Prof. Dr. Bernhard Schuldt, University of Dresden, Germany |
| 31.10.2023 | 10:30, Engler-Saal | 25' | Introduction to the Center for Climate Systems Modeling (C2SM) and its connection to climate change impact modelling at WSL | Dr. Dirk Karger, Dynamic macroecology |
| 05.12.2023 | 10:30, Engler-Saal | 25' | Dr. Katrin di Bella Meusburger, RG Biogeochemistry | |
Date 2022 | Time, Room | Duration | Title | Author |
| 31.01.2022 | 13:00, Zoom | 25' | Hydrological predictions in an era of change: chances and challenges | Dr. Elham Rouholahnejad Freund, ETHZ D-USYS |
| 15.02.2022 | 13:00, Zoom | 25' | Carbon isotope discrimination in developing leaves: implications for inferring intercellular CO2 concentration | Lucas Cernusak, James Cook University, Australia |
| 15.03.2022 | 13:00, Zoom | 25' | Remote sensing of intra-annual tree growth dynamics | Dr. Jan Eitel, WSL-Fellow, RG Ecophysiology |
| 12.04.2022 | 13:00, Englersaal and Zoom | 25' | Unraveling soil organic matter dynamics in a long-term irrigated dry pine forest | Dr. Claudia Guidi, PostDoc, RG Biogeochemistry |
| 17.05.2022 | 13:00, Englersaal and Zoom | 25' | Digitalization in forest monitoring and observation | Prof. Dr. Arthur Gessler, RG Ecosystem Ecology |
| 07.06.2022 | 13:00, Englersaal and Zoom | 25' | Carbon, nutrient and water relationships between mistletoes and its host trees | Ao Wang, RG Ecophysiology |
| 13.07.2022 | 13:00, Englersaal | 25' | Carbon source vs sink controls of forest biomass production | Dr. Antoine Cabon, University of Utah |
| 05.09.2022 | 13:00, Englersaal | 25' | Local and regional variability in crown dieback of European beech after the 2018 drought depends on climatic and edaphic drivers | Dr. Esther Frei, RG Disturbance Ecology and Dr. Stefan Klesse, RG Dendrosciences |
| 04.10.2022 | 13:00, Englersaal | 25' | What makes a Scots pine tree sensitive to climate and how does it die during or after a drought? | Dr. Arun Kanti Bose, RG Ecophysiology |
| 08.11.2022 | 13:00, Englersaal | 25' | Tritrophic phenological interaction in Swiss forests | Sylvain Eichhorn, RG Ecosystem Ecology |
| 12.12.2022 | 13:00, Englersaal | 25' | Forest regeneration dynamics and their interaction with biological legacies, particularly deadwood | Davide Marangon, RU Forest Dynamics |
Date 2021 | Time, Room | Duration | Title | Author |
| 12.01.2021 | 13:00, Zoom | 25' | Determining temporal changes in leaf physiology and anatomy within the Swiss LWF network | Joachim Zhu |
| 16.02.2021 | 13:00, Zoom | 25' | Managing drought in temperate mixed forests with silver fir and norway spruce in central Europe | Dr. Alessandra Bottero |
| 16.03.2021 | 13:00, Zoom | 25' | No risk – no fun: The tradeoff between avoiding frost and maximizing growth | Frederik Baumgarten |
| 13.04.2021 | 13:00, Zoom | 25' | Revisiting the Waldsterben and establishing new methods to assess tree vitality and forest health | Prof. Dr. Paolo Cherubini |
| 26.05.2021 | 13:00, Zoom | 15' | Spreading tendencies and competitive ability of Douglas fir in Switzerland | Dr. Esther Frei |
| 15' | Douglas fir seedlings in competition with Central European tree species | Dr. Barbara Moser | ||
| 15' | On the invasiveness of Douglas-fir and its impacts on soil and biodiversity | Dr. Tom Wohlgemuth | ||
| 29.06.2021 | 13:00, Zoom | 25' | More than climate: Hydrogen isotope ratios in tree rings as a novel plant physiological indicator | Dr. Marco Lehmann |
| 20' | The Green Road for publishing | Dr. Lothar Nunnenmacher (Head Lib4RI, ETH Domain) | ||
| 13.07.2021 | 13:00, Zoom | 25' | cancelled | |
| 24.08.2021 | 13:00, Zoom | 25' | Why trees grow at night | Dr. Roman Zweifel |
| 15.09.2021 | 13:00, Zoom | 25' | Air pollution and Climate change on urban trees in Mongolia: First results | Enkh-Uchral Batkhuyag |
| 27.10.2021 | 13:00, Zoom | 25' | I can tell you are stressed before you show it – How we can capture early drought stress in forests using drone-based sensing of pigments changes | Dr. Petra D'Odorico |
| 24.11.2021 | 13:00, Zoom | 25' | A constraint on historic increases in global photosynthesis due to rising CO2 | Prof. Dr. Benjamin Stocker, ETHZ D-USYS |
| 13.12.2021 | 13:00, Zoom | 25' | Using time series of xylem cell anatomy for climate reconstructions | PD Dr. Georg von Arx |
Date 2020 | Time, Room | Duration | Title | Author |
| 10.02.2020 | 13:00, Engler | 25' | Impact of tree species interactions on intra-specific trait variability in temperate forests | Margaux Didion-Gency |
| 17.03.2020 | 13:00, Engler | 25' | Open access: the new publication standard | Dr. Lothar Nunnenmacher, LIB4RI |
| 08.04.2020 | 13:00, Engler | 25' | Modelling CO2 & Vegetation | Prof. Dr. Beni Stocker |
| 19.05.2020 | 13:00, Engler | 25' | The production ecology of mixtures: From pattern to process to application | Dr. David Forrester |
| 30.06.2020 | 13:00, Engler | 25' | C pools and fluxes in Swiss forests - Data / Models / Scenarios | Dr. Esther Thürig |
| 25.08.2020 | 13:00, Engler | 25' | Climate sensitivity and drought seasonality determine post-drought growth recovery of Quercus petraea and Quercus robur in Europe | Dr. Arun Kanti Bose |
| 28.09.2020 | 13:00, Engler | 25' | Forest vegetation in Switzerland based on NFI-data | Dr. Daniel Scherrer |
| 26.10.2020 | 13:00, Zoom-Meeting | 25' | Tree species responses to soil water shortage in Swiss forests | Lorenz Walthert |
| 23.11.2020 | 13:00, Zoom-Meeting | 15' | In-situ polytunnel greenhouses to assess the impact of climate smart forests on ecosystem functioning and diversity | Dr. Barbara Moser |
| 15' | Lötschental transect infrastructure up-grade | Dr. Patrick Fonti | ||
| 16.12.2020 | 13:00, Engler | 25' | Linking O3 fluxes to plant responses: physiological, structural and molecular aspects of O3 injury dynamic within deciduous tree foliage | Benjamin Turc, M.Sc |
Date 2019 | Time, Room | Duration | Title | Author |
| 29.01.2019 | 13:00, Engler | 25' | The potential role of transgenerational epigenetic effects for the acclimation of Pinus sylvestris L. to drought | Arun Bose |
| 05.03.2019 | 13:00, Engler | 25' | What drives vulnerability to drought in mixed Norway spruce-silver fir forests in Central Europe? | Alessandra Bottero |
| 01.04.2019 | 13:00, Engler | 25' | Where is the ecological memory in trees? | Roman Zweifel |
| 22.05.2019 | 13:00, Engler | 25' | Phenology and trace gas exchange affected by climate variability in secondary dry dipterocarp forest | Rungnapa Kaewthongrach |
| 11.06.2019 | 13:00, Engler | 25' | Changes in land use and climate: insights from a long term experiment in a dry Scots pine forest from Central Valais | Yann Wittwer |
| 09.07.2019 | 13:00, Engler | 25' | Tree rings as a multi-proxy record of past tropical cyclone activity | Ian Altman, Institute of Botany of the Czech Academy of Sciences |
| 21.08.2019 | 13:00, Engler | 25' | ||
| 26.09.2019 | 10:00, Flury | 25' | Estimating canopy photosynthesis from sapflux and d13C: the key role of mesophyll conductance | John Marshall, Swedish University of Agricultural Sciences, Uppsala |
| 23.10.2019 | 13:00, Engler | 25' | Impact of climate change disturbances affecting Mediterranean plant communities. Implications for restoration | Alberto Vilagrosa, CEAM & University of Alicante, Spain |
| 26.11.2019 | 13:00, Engler | 25' | The role of nutrient and drought in the process of trees morality and survival | Shengnan Ouyang |
| 17.12.2019 | 13:00, Engler | 25' | QUPFiS project results | Volodymyr Trotsiuk |
Date 2018 | Time, Room | Duration | Title | Author |
| 09.01.2018 | 13:00, Engler | no presentation | ||
| 13.02.2018 | 13:00, Engler | 25' | Statistical upscaling of tree-ring data for environmental change research | Flurin Babst |
| 14.03.2018 | 13:00, Engler | 25' | Was the late spring frost in 2017 the frost of the century in Switzerland and Germany? | Yann Vitasse |
| 09.04.2018 | 13:00, Engler | no presentation | ||
| 17.05.2018 | 13:00, Engler | 25' | Linking fungal dynamics, tree growth and forest management in a Mediterranean pine ecosystem | Eduardo Collado |
| 05.06.2018 | 13:00, Engler | 25' | Title not yet defined (Master thesis) | Rahel Mösch |
| 09.07.2018 | 13:00, Engler | 35' | Mediteranean Tree Rings, Pharaons and the Olive-Tree Radiocarbon Dating of the Santorini Minoan Volcanic Eruption | Paolo Cherubini |
| 21.08.2018 | 13:00, Engler | 25' | Chilling requirements of major tree species: an experimental approach | Frederik Baumgarten |
| 18.09.2018 | 13:00, Engler | 25' | Carbon storage and allocation under drought and nutrient availability | Leonie Schönbeck |
| While carbon dynamics in drought exposed trees have gained increasing interest over the last years, the combined effects of drought and nutrient availability on tree functioning are still largely unknown. In the past 3 years, the Model Ecosystem Facility at WSL has been subject of a combined study on drought and nutrient availability on Scots pine. Using photosynthesis, biomass, and carbon allocation measurements we want to unravel the thresholds of drought to tree mortality, and answer the question whether nutrients mitigate or exacerbate the negative effects of drought. | ||||
| 23.10.2018 | 13:00, Engler | 25' | Quantifying, understanding and predicting forest growth in Switzerland | Volodymir Trotsiuk |
| 13.11.2018 | 13:00, Engler | 25' | 10 years of high-resolution tree growth monitoring in the Loetschental | Patrick Fonti |
| 04.12.2018 | 13:00, Engler | 25' | Climate change impacts and mitigation in forest ecosystems | Charlotte Grossiord |
| Predictions on how warming and drying will affect forests are challenged by important lacks in mechanistic understanding of tree species community dynamics. Particularly recognized processes that could influence forest responses to climate change, but that are largely misunderstood, are how trees acclimate to long-term shifts in climate, and how the interactions among species in natural conditions influence this acclimation potential. This presentation will summarize my findings on this topic by combining experimental and observational studies conducted in multiple forest types around the globe (boreal, temperate, Mediterranean, semi-arid and tropical forests). | ||||
Date 2017 | Time, Room | Duration | Title | Author |
| Di 24. Januar | 10:00, Engler | Die nächste Gradation des Lärchenwicklers wird erwartet (35') | Beat Forster, WSL | |
| Alle zehn Jahre steigt die Population des Lärchenwicklers (Zeiraphera griseana) in den inneralpinen Tälern deutlich an. Wie eine Welle zieht die Massenvermehrung jeweils von West nach Ost durch den Alpenraum. Eine neue Gradation hat in Frankreich begonnen. Wird sie so ablaufen wie in früheren Jahrzehnten oder wird eine Beeinflussung durch die Klimaerwärmung immer deutlicher? | ||||
| Mo 13. März | 10:00, Flury | Stitching together ‘big data’ sources: a pan-European fungal meta-database that addresses contemporary questions in ecology and global change biology (35'+15') | Carrie Andrew, WSL | |
| Species occurrence observations from citizen science projects, herbaria, and the digitization of museum records represent a largely underutilized ecological resource. Yet there is unparalleled potential for understanding many aspects of the ecology and biogeography of organisms with these data. This talk demonstrates how such continental-scale meta-databases, in this case a pan-European mycological one (ClimFun), offer unique insights into climate change effects on phenology in recent decades. | ||||
| Di 11. April | 10:00, Engler | Introduced tree species in European forests – Opportunities and challenges (45'+15') | Frank Krumm, WSL | |
| An emotional discussion across Europe is dominating the debate among non-native tree species. Varying definitions of specific terms, social perception – often based on different historic backgrounds, political and economic influences and finally fast environmental changes that are often too fast for basic research activities to provide scientific consultation. The project In-Tree aimed to create a compilation of chapters highlighting some of the major aspects of the topic of introduced tree species within a European context. The presented findings are based on sound scientific studies as well as on reliable examples from practice. The main final product is a book where 90 authors from 45 different institutions and 18 countries have contributed their expertise - some are forestry practitioners actively engaged in forest management, while others are researchers, others are civil servants, and others work for non-governmental agencies focusing on natural sciences. The variety of expertise amongst the authors ranges from nature conservation to forestry, but authors from social sciences and invasion ecology have also contributed. The book has been translated into German language and as a further outcome of the project that has been funded by the German Ministry of Food and Agriculture, a policy brief has been produced that appeared in 6 different languages and aims to provide policy makers the essentials of the book publication. | ||||
| Di 16. Mai | 10:00, Flury | The new stable isotope research lab at WSL (35+15') | Matthias Saurer, WSL | |
| Recently, the stable isotope lab of PSI was transferred to WSL. This opens new possibilities for WSL researchers to apply the cutting edge technology of compound-specific isotope analysis and expands the capacity for bulk isotope analysis already available at WSL Zentrallabor. In this talk, background information on stable isotopes is given, the new facilities are presented, and research opportunities discussed. It will be shown that stable isotopes are very helpful to improve our understanding of physiological and biochemical responses of trees to environmental conditions and thus their adaptation/acclimation potential to changing climate conditions. | ||||
| Di 20. Juni | 10:00, Engler | From Waldsterben to Klimawandel - changing perspective on forest monitoring and inventorying (45'+15') | Marco Ferretti, WSL | |
| Information about forest resources was traditionally based on national forest inventories (NFIs). Starting in the 1970s, emerging environmental concerns make also monitoring to become a popular investigation approach across the forest community. Since then, forest inventory and forest monitoring developed rather independently across Europe, up to the point to be perceived and implemented as two separate, sometimes competing systems. Scientific and political priorities (e.g. from forest decline to climate change) and spatial and temporal scales (e.g. from national to global) of concern have changed a lot over the past 40 years. Alongside, the demand for multidisciplinary, comparable, long-term, multiscale, high-quality data on forest ecosystem status and changes has increased. As a result, the dualism between forest inventorying and forest monitoring sounds quite obsolete now. Rather, a conceptual and functional integration between forest inventory and forest monitoring is essential. | ||||
| Do 6. Juli | 10:00, Engler | Kein Vortrag | ||
| Mo 21. August | 10:00, Engler | Ecological responses to de-icing salt contamination in the street greenery of Riga, Latvia (25'+10') | Dalinda Bouraoui, WSL | |
| Mo 2. Oktober | 10:00, Engler | Sounds of soils and trees (35'+15') | Marcus Mäder, WSL | |
| Di 14. November | 10:00, Engler | A synthesis of radial growth patterns preceding tree mortality | Maxime Cailleret, WSL | |
| Di 19. Dezember | 10:00, Engler | Mountain pine beetle, global marketsCoupling of the canopy and the root system through carbon dynamics in tropical trees | José Grünzweig |