Von: Tree Mortality Network [mailto:treemortnet@gmail.com]
Gesendet: Samstag, 20. Juni 2020 11:18
An: burger@iufro.org
Betreff: International Tree Mortality Network - Newsletter

 

 

NEWSLETTER

Dear members,

 

The International Tree Mortality Network is now up and running! 

We will organize different activities during the upcoming months and years and will use our webpage and regular distribution of newsletters to keep you informed and to get you involved. Despite the fact that the current health situation has jeopardized our first scientific activity, a workshop on harmonizing data on forest condition that was scheduled for late March but was cancelled, we have succeeded in taking up additional momentum.

Please read on, this is the start of a global initiative that will propel science, forest management and policy making!

 

 

 

Data surveys of global forest condition

 

We recently have launched two surveys on data availability of global forest condition. The surveys seeks to assemble metadata on existing field assessments (i) to develop methods for quantification of tree mortality rates consistently across different protocols, and (ii) to link ground and satellite-based information to understand how tree mortality changes over time. We have already received XX responses from contributors around the globe. Please press the buttons to fill out the surveys.

Participants of the surveys and other experts will be given the opportunity to contribute to topical online working groups. Invitations will be sent out this summer. We'll keep you updated.

 

 

Tree mortality event image gallery

 

To increase awareness about climate change-induced tree mortality as a global phenomenon, we want to host images on mortality events on our webpages. To do so, we seek your support, please send us images of mortality events (large group of trees, forest stands,...) to treemortnet@gmail.com, and add a short description about the main species affected, the region and country, the cause (e.g., bark beetle) and year of mortality (if known), and the name of the copyright holder (for example, Spruce_Thuringia_Germany_bark beetles_2019_Hartmann.jpg).

 

 

 

Global database and interactive map of tree mortality events

 

We have posted a tree mortality event map on our webpage. For the time being, the map is a geo-referenced version of the "Allen mortality map" (Allen et al. 2010, Hartmann et al. 2018) and is currently populated by Bill Hammond as part of his PhD dissertation. Once published, we will post on our webpage not only the interactive map that provides geo-referenced information on tree mortality events documented in peer reviewed publications over the last ~50 years, but we will also add a functionality allowing the signalling of new mortality events via an online entry tool.

Fig.: Global map of documented tree mortality events related to drought and hotter temperatures.  Events taken from Allen et al. 2010, IPCC 2014, Allen et al. 2015, Hartmann et al. 2018, Hammond et al. in preparation.  The map currently is being populated with ~1000 precisely georeferenced research plots that document these mortality events by William Hammond. Tree height data are from Simard et al., 2011.

 

Thank you for your support!

Your ITMN organisation team

Henrik, Adriane, Tom, Nadine, Bernhard, Rupert, Cornelius

 

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DE