🌱 Before the winter break, our research group had a tree-planting activity at the #ARBOfun research arboretum Großpösna, kindly supported by the Botanical Garden Oberholz and pupils from the Wilhelm-Wander School. A cold but great day for everyone! 🌳

Autumn is coming to the Arboretum #ArboFun! The field season is drawing to a close, but the colours are still a work of art at this time of year 🥰 Goodbye summertime! #fieldwork #season #autumn #Biodiversity #Research

Very cool to see this coming together! 🌲🔬
Sampling from 12 conifer species at #ARBOfun – part of our trait campaign @idiv-research.bsky.social
We are curious to see what stomata can tell us about drought responses!
#conifers #stomataltraits #fieldtolab

Busy making needle imprints and diving into stomatal worlds under the microscope 🔬🌲
Measuring stomatal size and density — still amazed by the incredible variation, even among conifers!
#ARBOfun #stomata #conifer #drought #forest

Root shrinkage measurements of 40 #tree species at #ARBOfun completed! We've measured root #shrinkage, to understand #root-soil contact under #drought. The campaign was led by Dr. Anvar Sanaei with great support of our technician Nicole Nabel. Excited to see the results! #RootTraits #PlantScience

A person standing on a ladder collecting conifer needles of the species Tsuga canadensis

Close-up of the abaxial side of Abies needles showing the white wax layers over the bands of stomata

Needle of Picea sitchensis under the binocular with wax layers of stomatal pores visible

View of the arboretum ARBOfun in Großpösna, Germany

Into the canopy for tiny pores 🌲🔎
We sampled needles from 12 #conifer species at the arboretum #ARBOfun to study stomatal density and size. Looking forward to the lab work & to uncovering what these traits can reveal about tree drought responses in a changing climate. #stomata #drought #forest

🌿 Fieldwork – Leipzig, Spring 2025 🌿
Pollen traps in the canopy, soil sensors in the arboretum – and a top team in action!
Huge thanks to Ron, Tom, Lena, Daniel, Melanoie & Anneke – and everyone behind the scenes.
#Fieldwork #Ecology #CanopyCrane #ARBOfun

We investigated whether tree growth responses can be explained by tree functional #traits related to #drought tolerance, growth and resource acquisition in the research arboretum #ARBOfun.

We measured branch shoot increments and examined gymnosperms🌲 and angiosperms🌳.

Functional traits explain growth response to successive hotter droughts across a wide set of common and future tree species in Europe Functional traits can explain significant tree growth reductions in response to the 2018–2020 drought for a wide set of 71 species including angiosperms and gymnosperms. Moreover, four distinct respo...

🚨Are you interested in functional #traits, hotter #drought and #tree growth?🌳🔆

We studied tree growth responses to the 2018-2020 drought across 71 tree species.

\w Lena Kretz, @agwirthweigelt.bsky.social, @unileipzig.bsky.social ,@uni-freiburg.de, #ARBOfun

onlinelibrary.wiley.com/doi/10.1111/...

Its really amazing to see what we have already compiled in terms of #traits and multiple response variables in #ARBOfun and what is still to come.

Such a cool group for studying #tree responses to climate extremes!

Thank you for this wonderful #ARBOfun meeting. Very interesting to learn more about your trees and the processes at these scales. Great speakers and discussions!

Really enjoyed the ARBOfun meeting @iDiv! Always a pleasure to exchange ideas in such a unique setting — happy to be part of this community! #ARBOfun

ARBOfun Meeting 2025 @iDiv – Thanks for your brilliant talks, the fruitful discussions, and two inspiring days! Exciting to see how our research evolves on this unique platform, where 100 different tree species grow side by side. #ARBOfun