Current activities

25 Jul 2023: Radio interview: SRF 1 News: Wälder leiden unter letztjährigem Wasserdefizit

1 Jul 2023: Publication in AFM: Towards monitoring stem growth phenology from space

12 May 2023: Publication New Phytologist: Daytime stomatal regulation prioritizes stem rehydration at night

13 February 2023: Publication STOTEN. White Paper TreeNet

25 Nov 2022: Science story SwissForestLab: Tracking the growth of a decapitated tree

22 Sep 2022: Publication J of the Royal Society Interface. TreeNet goes AI

21 Sep 2022: Radio interview: SRF 2 Radio News. Trotz grosser Hitze wachsen die Bäume

27-28 Juni 2022: TreeNet 10-year anniversary conference

9 Juni 2022: Exhibition: Touch Wood, ZAZ, 9.6.22 – 30.10.22

6 Juni 2022: Radio interview: SRF 2 Radio News. Den Schweizer Bäumen scheint es gut zu gehen.

15 April 2022: Publication: Env. Exp. Bot. Krejza J et al. Zweifel R. 2022. Disentangling carbon uptake.

11 Januar 2022: Publication in Nature Communications: Hitzewelle 2018

9. Januar 2022: Publication Ecological Monographs. Lessons learned from an irrigation experiment

9. Dec 2021: Publication Ecology Letters: Saisonal tree growth

4. Nov. 2021: Publication Frontiers: TreeNet infrastructure

19 Oct. 2021: Science-Art-Project Silva im Estnischen TV

14 Jun. 2021: Publication New Phytologist: Why trees grow at night

13 Jun. 2021: Publication FORESTS: treenetproc - Processing and Extraction of Seasonal Tree Physiological Parameters from Stem Radius Time Series 

18 May 2021: Publication Waldschutzüberblick 2020 with contribution of TreeNet.

5 Jan. 2021: Publication Methods in Ecology and Evolution: sap flow data analyses with the TREX R package

25 Apr. 2021: Publication Earth System Science Data DiscussionsSAPFLUXNET database

21 Apr. 2021: Publication STOTENClimate sensitivity of Quercus petraea and Quercus robur in Europe. 

15 Mar. 2021: Publication Forest Ecology and Managementdrought sensitivity of juniper trees on the Tibetan plateau.

25 Aug. 2020: Publication in STOTENFrom the comfort zone to crown dieback of beech

18 Jul 2020: Media reports about legacy effects in pine: Forstpraxis, Bote, Swissinfo, Blick, Wald Schweiz, BZ, DBG, und einige mehr      

15 Jul 2020: News release WSL: Waldföhren haben ein ökologisches Gedächtnis 

20 May 2020: Publication in New Phytologist: Determinants of legacy effects in pine trees

5 May 2020: Publication in Wald und Holz: TreeNet - Wann wachsen unsere Bäume?

10 Mar 2020: Publication in Wald und Holz: TreeNet - Am Puls der Bäume

21 Nov 2019: The research site Seehornwald Davos earned the CLASS 1 Label of ICOS.

21 Nov 2019: TV-Reportage: Ökoakustik: Die Tonspur des Klimas

1 Nov 2019:  Relaunch TreeNet.info

31 Oct 2019: Radio-Reportage im Bayrischen Rundfunk mit Marcus Maeder: Horizonte - Von Käfern, Kiefern und dem Klimawandel

5 Sep 2019: Radio-Reportage auf MDR: Vom Flüstern, Ächzen und Knacken der Bäume

22 Aug 2019: TreeNet.info Artikel: First preliminary results about the effects of the drought summer 2018 on forest trees

12. Aug 2019: TV-Reportage auf RTS 1: La canicule tue nos forêt

11 Ju 2019: Zeitungsartikel in der NZZ: Rückblick auf den Trockensommer 2018

24 May 2019: Forum für Wissen Artikel: Wie viel Trockenheit ertragen unjsere Wälder? Lehren aus extremen Trockenjahren

23 Apr 2019: Zeitungsartikel in La Forêt: TreeNet fait 'parler' les arbres

6 Dec 2018: TV-Reportage auf SRF1 - Einstein: Wie die Trockenheit unseren Wald umbaut

10 Dec 2018: Publication in WSL BerichteTreeNet - Analyses (in German)

28 Nov 2018: Publication in FrontiersLegacy effects on stem growth

9 Nov 2018:  News article in Zürichsee Zeitung: Sie fühlen dem Sihlwald den Puls

1 Nov 2018: Publication in TreesGrowth potential of Ailanthus

15 Aug 2018: TV-Reportage in 3Sat – nanoBäume leiden unter akutem Wassermangel

13 Aug 2018: TV-Reportage with SRF – Schweiz aktuellBäume leiden unter akutem Wassermangel

7 Aug 2018:  News article in Schaffhauser NachrichtenBäume leiden unter Stress wegen der Trockenheit 

7 Aug 2018:  News article in Schweizer BauerBäume leiden unter Trockenheit

3 Aug 2018:  News article in 20minSo belastet die Hitze die Gesundheit und die Natur

2 Aug 2018: News article in NZZWie der Wald unter der Trockenheit leidet

1 Aug 2018: Publikation in Environmental and Experimental BotanyLong-term soil water change affects control of tree water relations.

17 Apr 2018: Publikation in Tree PhysiologyWater relations of a mangrove species

4 Apr 2018: Vortrag 'Das Flüstern der Bäume'Flying Science. Basel

15 Mar 2018: Publikation in Tree Physiology: Tree water deficit allows for estimating crown water potentials 

29 Jan 2018: Radio Interview SRF2 - Kultur: What about nature's worth? Musik, Soundkunst und der Klimawandel

26 Jan 2018: Vortrag Naturwissenschaftliche Gesellschaft Winterthur: Das Flüstern der Bäume

22 Dec 2017: Publication in Forest, Ecology and Management: Competition for water in xeric forest

21 Dec 2017: Radio interview Hessischer Rundfunk

9 May 2017: STARTS Prize 2017TreeLab earns 'Honorary Mention'

17 Oct 2016: Publication in Tree Physiology: Trees maintain a similar conductance per leaf area

25 Sep 2016: Publication in Tree Physiology: Temperate tree species show identical response in tree water deficit

19 May 2016: Publication in New Phytologist: Are trees able to grow in periods of stem shrinkage?

24 Jan 2016: TreeNet in der Sonntagszeitung

2 Dec 2015: 'trees' at COP21 in Paris

25 Oct 2015: Publication in PCE: Radial stem variations

2 Jul 2015: Radio reportage about 'trees'Ö1 (Austrian radio)

23 Apr 2015: US-ambassador LeVine visits  'trees'Salgesch 

16 Apr 2015: State president of France, Francois Hollande, visits 'trees'ZHdK

18 Nov 2014: TV report: Gesang der Bäume, Nano, 3SAT

4 Sep 2014: Exhibition trees: Pinus sylvestris, WSL

6 Jun 2014: Das Flüstern der Föhren, Die Zeit

4 Jun 2014: Die leise Symphonie der Bäume, SRF Kultur

10 Dec 2012: NEW Webpage Treenet.info

24 Jul 2012: Exhibition in San Francisco

Swissnex: trees: Downy Oak

 

-> Link to: www.natkon.ch

 

Curriculum Vitae

 Roman Zweifel (Dr. sc. nat. ETHZ)

Education

   
1986-1990   Matura, Kantonsschule St.Gallen.
1990-1996   Studies of Biology, University of Zurich.
1995   MSc in Ecophysiology, University of Zurich and WSL Birmensdorf.
1996-1999   PhD „The Rhythm of Trees“, ETH Zurich and WSL Birmensdorf.

Experience

   
2000   Postdoc, WSL Birmensdorf.
2000-2005   Swiss Federal Research Fellowship (Oberassistenz), Institute of Plant Sciences, University of Bern.
2002-2003   Consultant and analyst for sustainable development, Julius Bär Asset Management Ltd., Zurich.
2005-2010   Zweifel Consulting: System analyses and strategic consulting: the concepts of natural systems.
2006-today   Zweifel Consulting/Natkon: Measurement systems for the ecological research (www.natkon.ch).
2006-today   Senior Researcher at the WSL Birmensdorf.

PI TreeNet

Co-PI ICOS Switzerland

PI TEA

Co-PI trees

PI research site Seehornwald, Davos

PI Tree response to climate change

and many more ...

2010-today   Review Editor of Frontiers in Plant Biophysics and Modeling
Member Editorial Review Board Tree Physiology
2001-today   Lectureships and research contracts at the Universities of Bern (2001-2005, 2008) and Basel (2007-2015), at ETH Zurich (2010), and at CSIRO Hobart Tasmania Australia (2010), Auckland University of Technology AUT (2015)

Projects

Publications