Arthur Gessler
@arthurobuntspecht.bsky.social
#Ecosystem Science and Impacts of #Climate Change; #Forest #Ecology; #Biodiversity. | Forest and Soil Ecology at @wslresearch.bsky.social | | Professor at @usyseth.bsky.social | | Head of the @SwissForestLab.bsky.social |
When the story of why humanity didn't stop climate change is written, it will feature front pages like this. Even as the skies blacken with climate change-induced wildfires, right wing media continue their relentless crusade against measures to tackle it.
I'll be on #BBCNews TV ~6pm ET / 11pm London to discuss the climate change-fueled wildfires currently ravaging Europe: www.bbc.com/watch-live-n...
Extremwetter mit tausenden Toten bahnt sich an. Wieder wird es keinen Klimaschutz geben und wieder werden skrupellose Manipulanten Wissenschaft leugnen. #Hitzewelle
Yesterday afternoon 14:09 in Lacanau Océan in France. A pale red sun through the smoke tinged everything in Mars style orange. Welcome in the climate emergency! Despite all denial of the fossil fuel lobby, it’s scientific fact: CO2 emissions heat up Earth & make fires worse. 🔥🔥🔥
Spätestens jetzt will ich das Thema #Deregulierung und Verschieben von Natur- und #Klimaschutz nicht mehr auf der politischen Agenda sehen, sondern einen #EUGreenDeal 2.0, werte @cducsu.de und @cducsueuropa.bsky.social! #Bordeaux www.tagesschau.de/ausland/wald...
Waldbrände in Frankreich: Feuer bewegen sich auf Bordeaux zu
Die Waldbrände im Südwesten Frankreichs sind nach wie vor nicht unter Kontrolle. Die Feuer bewegen sich auf die Großstadt Bordeaux zu, erste Vororte wurden evakuiert. Frankreichs Premier Lecornu ordne...
tagesschau.de
It beggars belief that we still carry on as normal - still sucking up and burning more oil and gas - still pretending everything is fine Will anything make us change? Or will we march glassy-eyed and grinning into oblivion? www.theguardian.com/world/live/2...
France and Spain race to control wildfires as suburbs of Bordeaux begin evacuation – live
Officials in Spain warn winds could worsen fires on Saturday
theguardian.com
Mir fehlen die Worte - www.spiegel.de/ausland/schw...
Schweiz: Patrick Frei soll ein Mädchen 40-mal betäubt und missbraucht haben – jetzt droht dem Opfer die Abschiebung
Patrick Frei saß als SVP-Politiker im Parlament des Kantons Aargau. Dort wetterte er gegen Ausländer und Pädophile. Nun kommt raus: Die Übergriffe auf die 14-jährige Tochter seiner Partnerin soll er s...
spiegel.de
What are dendrometers and why do we need a global dendrometer network? 💥Our first GDN paper is out! We document how it all started with a meeting in Norway, and outline some of the great potential that lies in creating a global community. Read: doi.org/10.1093/tree... Join: globaldendro.org
Die Wälder, die wir heute anlegen, werden das Klima der zweiten Hälfte dieses Jahrhunderts erleben. Dabei sollten wir uns von physiologischen Erkenntnissen im ökologischen Kontext leiten lassen. @arthurobuntspecht.bsky.social www.waldwissen.net/de/waldwirts...
Klimafreundliche Waldbewirtschaftung: Baumphysiologie als Grundlage
Ökophysiologisch fundierte Waldbewirtschaftung ist kein Rezept, sondern ein Denkmuster: Wer versteht, warum Bäume bei Hitze und Dürre absterben, kann Massnahmen gezielt an Schwachstellen ausrichten. W...
waldwissen.net
Our new study shows that aboveground and belowground C and N allocation patterns are closely linked during drought recovery and are determined by species-specific traits and the severity of prior drought stress. academic.oup.com/treephys/adv...
Aboveground and belowground carbon and nitrogen utilization in three drought-exposed subtropical tree species after rewetting
Abstract. Drought frequency and intensity increasingly threaten tree survival and growth by altering trees carbon (C), nitrogen (N), and water utilization.
academic.oup.com
How do plants store C?🌿 A global study of 2,000+ spp reveals that evolutionary history shapes energy reserves far more than modern climate! Plus, leaves store more C at high latitudes, while roots store less🌍 Wei-Ying Xu @joseppenuelas.bsky.social @csic.es @creaf.cat www.nature.com/articles/s41...
Compiling a global database of non-structural carbohydrates (NSCs) from >2,000 plant species, the authors show that evolutionary history explains a larger proportion of NSC variation than environmental controls 🧪 www.nature.com/articles/s41...
Evolutionary history drives organ-specific variability in plant non-structural carbohydrates - Nature Ecology & Evolution
Compiling a global database of non-structural carbohydrates (NSCs) from >2,000 plant species, the authors show that evolutionary history explains a larger proportion of NSC variation than environme...
nature.com
On "climate tumbles" by @alevermann.bsky.social: "Instead of analysing future climate as a sequence of quasi-equilibria—as a system that will settle when the world stops emitting carbon— researchers must treat it as an unstable system that is reorganizing" @nature.com www.nature.com/articles/d41...
‘Climate free fall’: why the biggest risk to our economies is yet to be recognized
Increasing instability of the ocean, ice and atmosphere threatens farming, finance and society. We all need to wake up to that fact.
nature.com
In our new paper we apply explainable AI (XAI) to model annual diameter growth of individual trees from four dominant European tree species. Potentials & limitations of XAI for forest ecology: effective for large datasets - but requires cautious interpretation. papers.ssrn.com/sol3/papers.cf…
Non-structural carbohydrates (NSC) serve as key metabolic substrates and carbon reserves in plants. Our new research shows the central role of evolutionary history in shaping global NSC variability - Important implications for vegetation carbon modeling. www.nature.com/articles/s41...
Evolutionary history drives organ-specific variability in plant non-structural carbohydrates - Nature Ecology & Evolution
Compiling a global database of non-structural carbohydrates (NSCs) from >2,000 plant species, the authors show that evolutionary history explains a larger proportion of NSC variation than environme...
nature.com
Hitzestress bei Bäumen - Waldökologe: Wir Menschen werden Probleme bekommen
Hitze setzt den Bäumen und Wäldern zu: Die Menschen werden Probleme bekommen
Die Hitzewelle schädigt Bäume schon ungewöhlich früh im Jahr. Wir müssten aktiv eingreifen, um einen neuen Wald zu bekommen, sagt Waldökologe Gessler.
deutschlandfunk.de
Laut einem Bericht waren in der EU rund 300 Millionen Menschen während der Hitzewelle im Juni schädlichen Ozongasen ausgesetzt. Die höchsten Werte wurden an einem Ort in Deutschland festgestellt.
Hitze in Europa: 300 Millionen Menschen schädlichen Ozonwerten ausgesetzt
Laut einem Bericht waren in der EU rund 300 Millionen Menschen während der Hitzewelle im Juni schädlichen Ozongasen ausgesetzt. Die höchsten Werte wurden an einem Ort in Deutschland festgestellt.
spiegel.de
Early defoliation, leaf browning and wilting and shedding of green leaves in Switzerland (Jura) and Southern Germany (Black Forest) - beech but also cherry and maple affected - heat and drought stress - and no rain forecasted for the next weeks. This is not unexpected - this is climate change!
🌱 New ReCLEAN publication 🙌 @wslresearch.bsky.social and EPFL colleagues show how drought and warming threaten nitrogen stability in grasslands, especially under intensive management. Thanks to @vallicrosah.bsky.social and @charlottegrossiord.bsky.social ! 🔬💡 ▶️ Publication here: lnkd.in/dByaM6nx
🌲🌳 PhD opportunity: Forest Vulnerability to Hotter Droughts Interested in forest ecosystems, climate extremes & tree stress resilience? 🎓 Dual PhD (KIT 🇩🇪 + Melbourne 🇦🇺) 🔬 Plant Ecophysiology Lab, Garmisch-Partenkirchen 🇩🇪 🌍 +1-year research stay 🇦🇺 👉 Apply here: t1p.de/g39co
Excited to share our new paper on leaf scorching. 🔥Early leaf browning during heat and drought is often interpreted as premature leaf senescence - but it may reflect rapid heat damage. Separating these processes is essential. www.nature.com/articles/s41... @wslresearch.bsky.social
Trees in Switzerland are intensively drought-stressed - the hot and dry period we are still in has led to very high tree water deficits (determined with point dendrometers) in forest stands across the whole country treenet.info. @wslresearch.bsky.social
In Europa sterben Bäume zunehmend verfrüht ab. Eine neue Studie der WSL über französische #Wälder zeigt nun: Nicht nur extrem trockene Sommer, sondern allgemein klimatische Abweichungen treiben das #Baumsterben an – insbesondere warme und feuchte Frühlinge. www.wsl.ch/de/news/waru...
Warum Europas Bäume sterben
Abweichungen vom üblichen Klima bewirken, dass Bäume verfrüht absterben. Selbst günstige Wachstumsbedingungen können sich negativ auswirken.
wsl.ch
En Europe, les arbres meurent de plus en plus prématurément. Une nouvelle étude sur les forêts françaises démontre qu'en plus des étés extrêmement secs, les anomalies climatiques favorisent aussi la mortalité des arbres – en particulier les printemps chauds et humides. www.wsl.ch/fr/news/pour...
Pourquoi les arbres d’Europe meurent
Les anomalies climatiques mènent à la mort prématurée des arbres. Même des conditions favorables peuvent avoir à terme des effets négatifs.
wsl.ch
In Europa gli alberi muoiono sempre più spesso in modo prematuro. Da un nuovo studio sulle foreste francesi emerge ora che non sono solo le estati estremamente secche, ma le anomalie climatiche in generale a favorire la moria degli alberi, come le primavere calde e umide: www.wsl.ch/it/news/perc...
Perché gli alberi europei muoiono
Le anomalie climatiche fanno sì che gli alberi muoiano prima. Anche condizioni favorevoli alla crescita possono avere effetti negativi.
wsl.ch
Original Paper: www.nature.com/articles/s41...
Rising tree mortality in France is associated with distinct seasonal climate anomalies - Nature Communications
This study explores climate-driven tree mortality risk beyond summer drought. It links rising tree mortality in France to distinct seasonal climate anomalies, including winter and spring warming, diff...
nature.com
🍁 Trees in Europe are increasingly dying prematurely. A new WSL study on French #forests now shows that it is not only extremely dry summers but #climate anomalies in general that are driving tree mortality – particularly warm and wet springs: www.wsl.ch/en/news/why-... @lsce-ipsl.bsky.social 🌍
Why Europe’s trees are dying
Deviations from the usual climate are causing trees to die prematurely. Even favourable growing conditions can have a negative impact.
wsl.ch
In Europe, trees are increasingly dying prematurely. A new study by @wslresearch.bsky.social on French forests now shows that it is not only drought, but also unusually warm or wet springs that increase the risk – even ideal growing conditions can prove fatal later on. www.wsl.ch/en/news/why-...
Why Europe’s trees are dying
Deviations from the usual climate are causing trees to die prematurely. Even favourable growing conditions can have a negative impact.
wsl.ch
1. A bit of evolutionary biology. I'm really intrigued by a new perspective piece from Steve Frank that explores connections between how natural selection creates systems that generalize and recent work in machine learning about the surprising capabilities of massively overparameterized systems.
Generalization as the great leap in evolvability: insights from machine learning
Abstract. Natural selection encodes learned information in the genome. Learned solutions may be tuned specifically to past challenges, failing in altered e
academic.oup.com
