In: Wood anatomy news, IAWA Newsletter, May 2016 (Pieter Baas)

The COST Action STReESS (Studying Tree Responses to extreme Events: a SynthesiS) celebrated its conclusion with a meeting in the forest of Joachimstahl (Germany, near Eberswalde) from 12–14 April.
The programme featured a stimulating symposium on the major themes of the action, culmination in a key-note by Amy Zanne. During the opening session Hans Beeckman proudly presented a dummy of the bulky special IAWA Journal issue 37 (2) on Functional Traits in Wood Anatomy (which he coedited with Pieter Baas, Katarina Čufar and Veronica De Micco) to Ute Sass-Klaassen, Chair of this COST action. The twelve papers in that special issue are largely the result of intensive international cooperation within the STReESS topic group on functional traits and databases.

Other highlights of the meeting were an outreach event with demonstrations of sophisticated equipment and research projects and Kathy Steppe’s Twittering tree which communicated its physiological condition and activities via a twitter account. Since all the measuring equipment feeding the twitter-data was attached to an as yet leafless birch tree, the German National TV programme Tagesthemen rightly concluded that the tree’s twitter account had effectively been hacked by the large mistletoe, happily transpiring and photosynthesizing a few metres above the sapstream decoders.

Wood anatomy played a major role throughout the COST action with, in the outreach event, a long red carpet manufactured by the Padua group and imprinted with the nicest possible stitched micrograph of an especially long increment core of Larix decidua. IAWA is greatly indebted to the coordinators of the COST action Ute Sass-Klaassen and Paulo Cherubini, who both actively promoted cooperation with IAWA and other specialized international associations throughout the duration of the action.

red carpet 

 Photo: STREeSS delegates (Arturo Pacheco, Angela Prendin and Giai Petit) sitting on the Larix decicua carpet designed and made by Marco Carrer and Arturo Pacheco from Padua.


qwa film2

„Quantitative Wood Anatomy: From Sample to Data for Environmental Research”, the third COST-STReESS instruction film is launched by the Dendroclimatology group, Swiss Federal Institute of Forest, Snow and Landscape Research WSL (Switzerland) in cooperation with the Department of Land, Environment, Agriculture and Forestry (TESAF), University of Padova (Italy), the Department of Wood Science and Technology, University of Ljubliana (Slovenia), and the Forest Ecology and Forest Management Group, Wageningen University (Netherlands).

Quantitative wood anatomy investigates relationships between plant growth, functioning and environment, and typically also how these relationships change over time. It is a challenging multi-step approach, in which deficiencies in one step propagate to the following steps with negative consequences for data quality. This film gives and overview of how to quantify anatomical features in digital images, presents guidelines and pitfalls, and introduces different anatomical metrics used for environmental research.

The script for this film was written by Georg von Arx (Dendroclimatology group, Swiss Federal Institute of Forest, Snow and Landscape Research WSL).

The film is produced by Hans Reijnen of R Media in association with the COST Action STReESS

Citation: G von Arx, A Stritih, K Čufar, A Crivellaro, M Carrer. 2015. Quantitative Wood Anatomy: From Sample to Data for Environmental Research. DOI: 10.13140/RG.2.1.3323.0169

More information:

Previous COST-STReESS films:



H2020banner std

Dramatic reduction in COST budget for STReESS!
Due to the shift of COST from ESF to H2020 lots of changes occurred. For the last news see ( For us the most striking negative change is an drastic reduction in our budget of 30 % in our last Grant period (GP4). This means that we will be unable to organise the training school and the integrating workshops which we planned for the upcoming meeting in the Czech Republic and Slovenia. The Steering Committee will try its best to keep everybody motivated – support us!!!

New Vademecuum
This new document was necessary following the release of the new set of COST Implementation Rules approved by the CSO in December 2014 and which entered into force on the 1st of January 2015. Additionally to the changes necessary to ensure the compliance of the Vademecum with COST Implementation rules, updates of the text have been done in order to clarify the document. It aims at being shorter, simpler and more user-friendly. Please note that no change of the reimbursement rules has been done. Download the new Vademecum.



COST Strategic event 28/29 August in Sarajevo  - 5 marvellous STReESS posters and Ingvar Bauweraerts even won posterprize!

Under the topic “A scientific roadmap for projections of global change impacts on forests" a group of researchers discussed future research needs and possibilities. 5 STReESS ESRs, Ingvar Bauweraerts, Maxime Cailleret, Francesco Minnuno, Srdjan Stojnic;  and  Volodya Trotsiuk presented  posters and joined the interesting open- space discussions. The result of the meeting (and the posters) will be presented by Christopher Reyer,  organiser of the event at our next meeting in Portugal.  
At the end the best 3 posters were awarded and Ingvar’s poster "Heat wave impact on trees" was one of them.
Congrats, Ingvar - the more because you even took the risk to be late at your wedding which was scheduled the very next day... stre(e)ss...