The Tree-Ring Society is an international scientific association dedicated to tree-ring research and education. 

Goals of the Society are:

  • To promote tree-ring research to the global scientific community
  • To support the organization of symposia, conferences, and workshops on all aspects of tree-ring research
  • To publish results of tree-ring studies
  • To disseminate knowledge of tree-ring research to other disciplines and to the public
  • To provide a forum for communication for dendrochronologists from around the world

The Tree-Ring Society now offers a 50% discount on membership fees to colleagues in developing countries with the same rights and privileges as full-rate members. The 50% discount fee also is now available to retired colleagues wherever they are located.  A developing country shall be defined as one with a per capita gross net income of USD$15,000 or less as determined by the World Bank. 

Our journal Tree-Ring Research is now in digital-only format.  Members have full password access to all articles.  Please visit the new journal pages, and consider submitting your tree-ring related papers. We now offer  authors an open-access option.   

 High resolution versions of past issues  of Tree-Ring Bulletin and Tree-Ring Research from Volume 1 (1934-35) to Volume 62 (2006) are available from the University of Arizona.

The Tree-Ring Society is on Facebook and Twitter. And be sure to join The Tree-Ring Times, a Facebook forum dedicated to disseminating and discussing information, news items, and recent activities and advances in the tree-ring sciences.

The Tree-Ring Society offers a "Traveling Dendro Kit" for workshops and fieldweeks that provides all the basic equipment for sampling and crossdating.  The TDK includes five increment borers, microscope (ten optical plus a digital scope), battery-operated lights, sanding gear, straws, and more, in a hard-sided suitcase that weighs less than 22 kg (50 lbs) to meet most airline check-in baggage requirements. Please contact Peter Brown (pmb at rmtrr dot org) for more details about obtaining the TDK for use in your workshop or fieldweek.   

Conferences and Workshops

3rd AmeriDendro Conference, 28 March to 1 April 2016, Mendoza, Argentina.

TRACE 2016 Conference: Tree Rings in Archaeology, Climatology and Ecology, 11 to 15 May 2016, Białowieża, Poland.

NEW! The Laboratory of Tree-Ring Research (LTRR) is offering short summer courses in dendrochronology, including studies in dendroclimatology, dendroecology, and dendroarchaeology. Classes will convene for three weeks starting 16 May 2016 at the campus of the University of Arizona in Tucson.

North American Dendro-Ecological Fieldweek  26 July - 1 August 2016, Pack Forest, Eatonville, WA, USA.

The 2018 WorldDendro meeting will be held in Thimphu, Bhutan!  Please check back here as more information becomes available, and we look forward to seeing all our tree-ring colleagues from around the world in Bhutan in summer 2018! 


NEW! The Laboratory of Tree-Ring Research at the University of Arizona is calling for applications for the Agnese N. Haury Visiting Scholar & Trainee Fellowship for summer-fall 2016 to Spring 2017. Applications are 6 March 2016.

The Tree-Ring Society has a new format and membership management system.  Please let us know if you find any issues with the new system, and look for more changes in coming months.

For questions or comments, contact Peter M. Brown (pmb [at]
Last update: February 2016
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