Hans Juergen Boehmer
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hjboehmer.bsky.social
Hans Juergen Boehmer
@hjboehmer.bsky.social
Vegetation Dynamics - Forests & Grasslands - Biological Invasions
Coordinator, IUFRO Task Force "Legacy Forest Data and Related Resources"
Editor, "Endangered Species Research" (ESR)
https://www.researchgate.net/profile/Hans-Juergen-Boehmer
Pinned
“A truly global monitoring effort should promote fair and equitable collaborations, transferring funding to and empowering scientists from less wealthy regions.” Proud to see this published! 🌳Many thanks to @corneliussenf.bsky.social, Adriane Esquivel-Muelbert, and Thomas Pugh for leading the paper!
Towards a global understanding of tree mortality - out in @newphyt.bsky.social a collaboration between 113 of our members exploring the potential to better understand tree death globally nph.onlinelibrary.wiley.com/doi/full/10....
Turning a #tree into a home: how #beetles, their associated #microbes, trees, and #fungi work together. "A comprehensive resource for new researchers while encouraging them to question established hypotheses and to explore new avenues of enquiry." #forest
onlinelibrary.wiley.com/doi/10.1111/...
October 15, 2025 at 9:45 AM
Reposted by Hans Juergen Boehmer
Check out our piece in @theconversation.com explaining how intraspecific trait coordination across climatic gradients helps to avoid heat stress in some (but not all) tropical tree species

theconversation.com/some-tropica...
Some tropical trees cool their leaves to survive the heat — but not all species have ways to cope
In full sun, tropical leaves can become much hotter than the surrounding air. Their ability to cope can be a matter of life or death.
theconversation.com
September 4, 2025 at 10:32 PM
Reposted by Hans Juergen Boehmer
Good news for a change: Background mortality in unmanaged forests of Europe has not increased over past decades. Great work from the European Forest Reserve Initiative EuFoRIa, out in @journalofecology.bsky.social doi.org/10.1111/1365...
September 2, 2025 at 1:42 PM
‼️🪶The future reference for basic and applied research on #invasivespecies. 🏝️It was an honour and a pleasure to contribute to this important global study from the perspective of the tropical #Pacific #Islands. Thank you for taking me on board!
#biodiversity #conservation #globalchange
August 15, 2025 at 10:52 AM
Reposted by Hans Juergen Boehmer
Read our latest paper on the trends and statuses of #biologicalinvasions worldwide.
Led by @hannoseebens.bsky.social , L Meyerson, P Pyšek and D Richardson and ~60 other coauthors, and based on Chap2 of the #IAS #IPBES Report, it has all the basic info you need!
A MUST READ!
doi.org/10.1111/brv....
Biological invasions: a global assessment of geographic distributions, long‐term trends, and data gaps
Biological invasions are one of the major drivers of biodiversity decline and have been shown to have far-reaching consequences for society and the economy. Preventing the introduction and spread of ...
doi.org
August 13, 2025 at 1:08 PM
Reposted by Hans Juergen Boehmer
Human connection to nature has declined 60% in 200 years, study finds
Human connection to nature has declined 60% in 200 years, study finds
Prof Miles Richardson says people risk ‘extinction of experience’ in the natural world without new policies
www.theguardian.com
August 9, 2025 at 8:03 AM
Dieter Mueller-Dombois (26 July 1925- 19 July 2022) would have turned 100 years old last week.
#vegetation #ecology #Pacific #islands #conservation
biodiversityoceania.com/2022/08/05/d...
August 11, 2025 at 6:26 AM
Where modern multi-causal #research into #forest #decline began...
Dieter´s interdisciplinary research into the causes of large-scale #forest #dieback in forests on the islands of #Hawai´i throughout the 1970s and 80s had a global impact and can be seen as exemplary for modern multi-causal forest #decline #research. Context: muse.jhu.edu/pub/5/articl...
August 5, 2025 at 12:26 PM
Forest dieback in 1972, Alaka´i Swamp, Kaua´i, State of Hawai´i
#Pacific #islands #rainforest
Prof. Mueller-Dombois has been studying #forest #dieback in the Hawaiian #Islands since the late 1960s. This aerial photograph was taken during a reconnaisance flight over the dieback area in #Alaka´i Swamp, Kaua´i, in March 1972. Photo by D. M.-D.. Context: www.google.de/books/editio...
August 2, 2025 at 8:03 AM
Forest decline research in 1976... #forest #dieback #history
Let's start with our header. August 1976, Hawaii, Big Island, Saddle Road area: Prof. Dieter Mueller-Dombois, University of Hawaii at Manoa, takes notes on the dieback of native Ohia trees (Metrosideros polymorpha). Photo by James D. Jacobi. Context: scholarspace.manoa.hawaii.edu/server/api/c...
August 1, 2025 at 12:48 PM
Reposted by Hans Juergen Boehmer
Our latest work with @colauttilab.bsky.social is out today!
Always great to work with Rob, one of the best evolutionary biologists out there. We hope this work sparks some important conversations on allelopathy and reproducibility in ecological research.
nph.onlinelibrary.wiley.com/doi/10.1111/...
July 29, 2025 at 2:58 PM
Reposted by Hans Juergen Boehmer
#Podcast | InneHalten. NachDenken. VerÄndern.

Wissenschaft weiter denken | Beiträge aus der Geographie mit Bezügen zu anderen Wissenschaften wie Philosophie/Ethik Philosophie Der neue Podcast "Innehalten. NachDenken. Verändern" beschäftigt sich mit der Frage, ob und wie die Wissenschaften zur…
#Podcast | InneHalten. NachDenken. VerÄndern.
Wissenschaft weiter denken | Beiträge aus der Geographie mit Bezügen zu anderen Wissenschaften wie Philosophie/Ethik Philosophie Der neue Podcast "Innehalten. NachDenken. Verändern" beschäftigt sich mit der Frage, ob und wie die Wissenschaften zur Bewältigung beitragen können. Welche Verantwortung kommt ihnen dabei zu? Welche Missstände und Ungerechtigkeiten gilt es anzugehen, welche guten Wege weiterzugehen? Und wie müssten sich Wissenschaft und insbesondere die Geographie als „Wissenschaft von der Welt“ verändern, um wirkungsvolle Beiträge zur Bewältigung globaler, wenn nicht planetarer Herausforderungen zu erarbeiten?
doinggeoandethics.com
July 28, 2025 at 3:51 AM
Reposted by Hans Juergen Boehmer
An important paper considering time scales of turnover and the coupling with the climate.
P.S. The detected breakpoint at the time scale of 1000 years is what Shaun Lovejoy called macroweather-climate transition (in the Holocene epoch).
www.science.org/doi/10.1126/...
🧪 ⚒️ #Paleobio #Geology
July 6, 2025 at 10:22 PM
Fieldwork in #forests and incredibly beautiful #meadows of southern #Slovenia as part of the EU Horizon project @zoe-eu.bsky.social . Fantastic support by Nataša Knap & Team (Institute of Microbiology and Immunology, University of Ljubljana) and Tea Knapič (Slovenian Museum of Natural History)!
June 13, 2025 at 12:14 PM
It is a great honour to become the coordinator of the #IUFRO Task Force 57 ‘Legacy Forest Data and Related Resources’ and to work with my deputy coordinator Sheila Ward and numerous colleagues from many countries around the world to rescue, curate and disseminate legacy #forest data.
IUFRO Headquarters in Vienna is happy to currently host its Enlarged Board for its 1st meeting in the new term of office.

70+ forest scientists from around the world participate either in person or virtually to discuss matters related to forest research and forest science.

www.iufro.org
May 26, 2025 at 7:24 AM
Reposted by Hans Juergen Boehmer
Successful mid-term meeting of our @zoe-eu project #Bratislava organised by #Slovak Academy of Sciences #SAVBA @unihannover.bsky.social #Charité Berlin
May 25, 2025 at 7:19 AM
We had inspiring days of intensive fieldwork in #forests and #meadows in the region north of #Bratislava as part of the EU Horizon project @zoe-eu.bsky.social. Many thanks to Boris Klempa and the Biomedical Research Centre of the Slovak Academy of Sciences (BMC SAS) for their fantastic support!
May 26, 2025 at 7:03 AM
Vulnerability of cloud forests under global change and the urgency to increase monitoring of species’ responses. 🌳 Upslope plant species shifts in Mesoamerican cloud forests driven by climate and land use change | Science www.science.org/doi/10.1126/...
Upslope plant species shifts in Mesoamerican cloud forests driven by climate and land use change
Global change drives biodiversity shifts worldwide, but these shifts are poorly understood in highly diverse tropical regions. In tropical mountains, plants are mostly expected to migrate upslope in r...
www.science.org
March 9, 2025 at 11:31 AM
Reposted by Hans Juergen Boehmer
Museum 'dark data'! Really interesting paper. Similar problem of 'legacy data sets' in forestry - being explored with a view to rescue by group led by Sheila Ward in @iufro.bsky.social
February 26, 2025 at 11:20 AM
Reposted by Hans Juergen Boehmer
Trees might profit from the reduced foliage area, allowing them to stabilize their #water relations in a #drying #climate: Losing half the crown hardly affects the stem growth of a xeric southern beech population - Scientific Reports
Losing half the crown hardly affects the stem growth of a xeric southern beech population - Scientific Reports
Scientific Reports - Losing half the crown hardly affects the stem growth of a xeric southern beech population
www.nature.com
February 23, 2025 at 1:52 PM
Reposted by Hans Juergen Boehmer
#Reassembly of a tropical #rainforest: A new #chronosequence in the #Chocó tested with the #recovery of #ree attributes
Our basic article is now online, with all the information on our study design and exciting results for trees.
www.reassembly.de/posts/basic-...
February 17, 2025 at 10:57 AM
Reposted by Hans Juergen Boehmer
This big pantropical analysis led by @kofitim.bsky.social integrates tree diversity, ecology and biogeography. Combining long-term records from ForestPlots and ForestGEO, reveals that faster life-history strategies tend to drive bigger ranges and more diversity.
www.nature.com/articles/s41...
February 13, 2025 at 1:53 PM
Reposted by Hans Juergen Boehmer
ForestPlots.net connects researchers measuring tropical forests to create a shared, scientific picture of their health. This worldwide collaboration is transforming our understanding of tropical forests and their shifting dynamics and is informing policy on their protection. Visit: forestplots.net
February 12, 2025 at 11:54 AM
“A truly global monitoring effort should promote fair and equitable collaborations, transferring funding to and empowering scientists from less wealthy regions.” Proud to see this published! 🌳Many thanks to @corneliussenf.bsky.social, Adriane Esquivel-Muelbert, and Thomas Pugh for leading the paper!
Towards a global understanding of tree mortality - out in @newphyt.bsky.social a collaboration between 113 of our members exploring the potential to better understand tree death globally nph.onlinelibrary.wiley.com/doi/full/10....
February 13, 2025 at 4:58 PM