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Jens-Christian Svenning

@jcsvenning.bsky.social
6.6K followers 642 following 442 posts

Scientist: #biodiversity, #macroecology, #climatechange, #restoration & #rewilding, #novelecosystems, #plants & #vegetation, #megafauna, #human-#nature relations & #remotesensing. Director, econovo.au.dk

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Jens-Christian Svenning @jcsvenning.bsky.social · 19/09/2026
Stable carbon isotopes from #Mesolithic hazelnuts from 6 Danish sites show that 83% of source hazels grew under open or semi-open conditions - in contrast to classic closed-forest expectations🔆🍃Thx to Laila Rehmeier & @felixthehauskat.bsky.social for leading!⬇️ #Palaeoecology #Archaeology #Forests
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Alejandro Ordonez @anordonez1.bsky.social · 16/09/2026
Exciting talk by @jcsvenning.bsky.social, director of @econovoau.bsky.social, showcasing the role of #rewilding as a key tool to redirect ecological changes under the ongoing #Ecological #Novelty.
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Jens-Christian Svenning @jcsvenning.bsky.social · 16/09/2026
Glad to give a session keynote today at the #NSO2026–#GfOe2026 conference: megafauna extinctions & trophic #rewilding in temperate/boreal Europe. How can restoring large herbivores revive mosaic biomes? Join us 14–16 in the plenary room. Thx to @skjoldsoendergaard.bsky.social & co-speakers🌿🦬
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Jens-Christian Svenning @jcsvenning.bsky.social · 09/09/2026
In @elife.bsky.social: Small mammalian herbivores at moderate densities facilitate livestock growth by improving vegetation composition in grasslands doi.org/10.7554/eLif... #pika #lagomorph #ochotona #interactions #herbivores
doi.org
Small mammalian herbivores at moderate densities facilitate livestock growth by improving vegetation composition in grasslands
At moderate densities, small mammalian herbivores can enhance livestock weight gains by suppressing toxic plants and improving both the abundance and nutritional quality of palatable forage in rangela...
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Markus Wagner @wagnermarkus.bsky.social · 27/08/2026
A nice study!
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Jens-Christian Svenning @jcsvenning.bsky.social · 27/08/2026
Why did the #neandertals go extinct? Our new analysis shows no climate-driven fragmentation of #neanderthal habitats prior to their #extinction, arguing against climate-driven habitat loss as the cause - and pointing to Homo sapiens👣 #archaeology #hominids ➡️https://doi.org/10.1038/s43247-026-03960-8
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Tom Kimmerer, PhD @tomkimmerer.bsky.social · 25/08/2026
At Our Trees, we are discussing pawpaw, which has become very popular in recent years. Are you a pawpaw fan? Read the story and take the quiz.
ourtrees.substack.com
The PawPaws Ripen
The rise of America’s largest native fruit
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juli g pausas @jgpausas.bsky.social · 23/08/2026
Some photos of the #Gironda fire (42 000 ha) in #Bordeaux I've just received from a friend. A large part of the area were homogeneous Pinus pinaster plantations. In the 21st-century climate, forest plantations need rethinking On the legacy of pine plantations doi.org/10.1111/1365... 🌍🔥🌳🔥🍁 wildfire
Burned pine plantation, with all pines aligned in rowsBurned pine plantation, with all pines aligned in rows
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Jonas Trepel @jonastrepel.bsky.social · 02/08/2026
Our new paper is out in @ecography.bsky.social! We show that atmospheric nitrogen deposition is strongly associated with global vegetation greening, and may be an important - but often underestimated - driver of global vegetation change nsojournals.onlinelibrary.wiley.com/doi/10.1002/... (1/5)
Fig. 1 of the manuscript: Global increases in green plant biomass are strongly linked to atmospheric N deposition. (A) Spatial distribution of trends calculated with an autoregressive model that accounts for temporal autocorrelation; EVI was scaled by 10 000. (B) Model estimates from a generalized linear mixed effects model which accounts for spatial autocorrelation using spatial random fields. The x-axis is restricted to the 2.5–97.5th percentile of the respective variable; see the Supporting information for the full range and raw data points. A solid line indicates a statistically significant relationship, a dashed line a non-significant relationship. The units for the predictors are as follows: fire frequency is given in number of fires between 2001 and 2024; human modification index (HMI) change is the difference in percent of land modified between 2020 and 2000; mean annual temperature (MAT) is in °C and mean annual precipitation in mm, MAT trend and max. annual temperature trend is °C year−1 (from 1951 to 2024), N deposition is in kg km−2 year−1 and precipitation trend is mm year−1 (from 1951 to 2024). All variables have been scaled and centered for modeling but are plotted on their original scale to ease interpretation.
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Jens-Christian Svenning @jcsvenning.bsky.social · 24/07/2026
New @econovoau.bsky.social study led by @jonastrepel.bsky.social: Global analysis shows that #vegetation in semi-natural areas greened (densified) faster w/ higher #Ndeposition - #nitrogen pollution may be an underestimated driver of global vegetation change🌿 doi.org/10.1002/ecog... #globalgreening
doi.org
Global analysis suggests nitrogen deposition as an underestimated driver of vegetation greening
The local effects of atmospheric nitrogen deposition on plants are well established, yet a global empirical analysis of nitrogen deposition effects on vegetation dynamics is missing. Here, we assess ...
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Sabhrina Aninta @sagitaninta.bsky.social · 01/08/2026
"Drawing on an analysis of over 100000 articles in ecology-related disciplines [...], we show that the shift to pay-to-publish OA has already reduced participation by researchers from many middle-income countries." nsojournals.onlinelibrary.wiley.com/doi/full/10....
nsojournals.onlinelibrary.wiley.com
Payment‐based open access is biasing scientific participation from the Global South in ecology
Opening access to the products of scientific research is widely considered a key step toward both fairness and better science worldwide. Since the 1990s, different forms of open access (OA) to journa...
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Rachel @slightlycaustic.bsky.social · 29/07/2026
www.cbc.ca/news/world/h...
cbc.ca
A human-made forest is at the centre of France's raging wildfires | CBC News
Scientists say climate change is driving the extraordinary fire conditions gripping western Europe, but that the scale of those fires cannot be understood without looking at how humans drastically cha...
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Jens-Christian Svenning @jcsvenning.bsky.social · 24/07/2026
Island #biodiversity in the #Anthropocene - see our new paper on how people have reshaped island biota & ecosystems, just out in Science Advances, led by Tom Matthews & nicely summarized by @ferransayol.bsky.social below 🏝🦤🦤🐒
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Jens-Christian Svenning @jcsvenning.bsky.social · 24/07/2026
New @econovoau.bsky.social study led by @jonastrepel.bsky.social: Global analysis shows that #vegetation in semi-natural areas greened (densified) faster w/ higher #Ndeposition - #nitrogen pollution may be an underestimated driver of global vegetation change🌿 doi.org/10.1002/ecog... #globalgreening
doi.org
Global analysis suggests nitrogen deposition as an underestimated driver of vegetation greening
The local effects of atmospheric nitrogen deposition on plants are well established, yet a global empirical analysis of nitrogen deposition effects on vegetation dynamics is missing. Here, we assess ...
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Jens-Christian Svenning @jcsvenning.bsky.social · 07/07/2026
📢 We’re hiring at Aarhus University! Tenure-track or permanent on vertebrate-driven #ecosystem processes, especially large #mammals w/in @econovoau.bsky.social's strong interdisciplinary environment spanning #ecology, paleoecology, biodiversity science & global change biology 🦬🌿🌍 ➡️More info below
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Jens-Christian Svenning @jcsvenning.bsky.social · 17/07/2026
Interview i @weekendavisen.dk om #egeprocessionsspinder 🌿🐛 #econovo
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Danmarks Grundforskningsfond @dg.dk · 17/07/2026
–Man kan fremme de naturlige forsvarsmekanismer mod, at der bliver virkelig mange af de her larver 👉Weekendavisen @jcsvenning.bsky.social, @econovoau.bsky.social Fx ved at danne gode rammer for mejser, der spiser larven, og snyltehvepse, der lægger æg i larven. www.weekendavisen.dk/ideer/at-lev...
weekendavisen.dk
At leve med larven
Toksisk. Egeprocessionsspinderens giftige hår stikker os som chili og brandmænd. Det er virkelig dårligt nyt, hvis man vil udvikle en modgift.
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Jens-Christian Svenning @jcsvenning.bsky.social · 10/07/2026
1/5: Hej danske medier - kan vi lige stoppe agurketids-hysteriet om #egeprocessionsspinder = "Larven fra helvede"). Herunder lidt perspektivering & praktisk info➡️ #larvenfrahelvede (Foto fra Wikipedia's udmærkede tyske side om arten)
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Sean Pang @seh-pang.bsky.social · 09/07/2026
Yesterday we shared the paper. Today I want to share the story behind it. We thought it was all about climate change. Then the models failed. That failure eventually led us to disturbances, and to a very different view of Europe’s flora. Read it @ communities.springernature.com/posts/europe...
communities.springernature.com
Europe’s flora is living in a landscape out of Equilibrium
99% of plant distributions in Europe show signs of disequilibrium. The surprise? Climate change was only part of the story. Disturbance emerged as an even more pervasive force shaping where species oc...
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Jens-Christian Svenning @jcsvenning.bsky.social · 08/07/2026
Fine-grained plant species distributions across Europe are strongly shaped by disturbance regimes - and by short-term #climatechange lags (in addition to long-term lags); see our new study in @natecoevo.nature.com 🌿🌼🌍 Thx @seh-pang.bsky.social for leading #macroecology #vegetation #plants #eccb2026
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Jens-Christian Svenning @jcsvenning.bsky.social · 08/07/2026
Looking forward to our symposium on recovery, #restoration & #rewilding at #ECCB2026 later today (16:30, C1)
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KinarNicholas.bsky.social @kinarnicholas.bsky.social · 08/07/2026
Hydrology Paper of the Day @jcsvenning.bsky.social on the causes of 50,000 years of extinctions: evidence for human influences on the environment and hydrological cycles; geographical patterns and processes; ecosystem stability and the loss of large-bodied species; and examining gaps in knowledge.
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Nature Ecology & Evolution @natecoevo.nature.com · 07/07/2026
Analysis based on over 1 million vegetation plots across Europe shows that disturbance explains range disequilibrium and whether species can occupy landscapes with suitable climate www.nature.com/articles/s41... @seh-pang.bsky.social @jcsvenning.bsky.social @econovoau.bsky.social
nature.com
Disturbance regimes drive widespread plant range disequilibrium in Europe alongside climate change - Nature Ecology & Evolution
Ecological constraints may prevent species from occupying potentially suitable areas. Here the authors show that disturbance is a widespread predictor of range disequilibrium in the vascular flora of ...
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Jens-Christian Svenning @jcsvenning.bsky.social · 07/07/2026
Much talk about ecosystem integrity at #ECCB2026 - imo #ecosystemintegrity should be redefined to not focus on fixed reference states BUT rather on general functionality for species diversity + large-scale persistence of long-resident lineages🌿🐎 onlinelibrary.wiley.com/doi/10.1111/... #restoration
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Jens-Christian Svenning @jcsvenning.bsky.social · 07/07/2026
📢 We’re hiring at Aarhus University! Tenure-track or permanent on vertebrate-driven #ecosystem processes, especially large #mammals w/in @econovoau.bsky.social's strong interdisciplinary environment spanning #ecology, paleoecology, biodiversity science & global change biology 🦬🌿🌍 ➡️More info below
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KinarNicholas.bsky.social @kinarnicholas.bsky.social · 07/07/2026
Hydrology Paper of the Day @mattkerr.bsky.social @andrewabraham.bsky.social on the concept of ecological novelty: biotic, abiotic and social processes; species composition in the context of functionality; human perceptions and metrics; and representation of synthesis for baselines.
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Jens-Christian Svenning @jcsvenning.bsky.social · 06/07/2026
Looking forward to speaking at #ECCB2026 in Leiden! My talk: Trophic rewilding as a key restoration approach Symposium: Ecosystem recovery, #restoration and rewilding 🐎🌿🌼🐗🦬 ➡️ Wed 8 July, 16:30–18:00, Room C1 #Rewilding #RestorationEcology
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Jens-Christian Svenning @jcsvenning.bsky.social · 04/07/2026
#EcosystemIntegrity #ECCB2026 #SERE2026 #restoration 🌿🐎
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Alan McElligott @amcell.bsky.social · 03/07/2026
2026. A 2100‐km jaguar journey redefines mobility and large‐scale conservation priorities during large carnivore dispersal. esajournals.onlinelibrary.wiley.com/doi/full/10....
static.klipy.com
Jaguar Hunt
ALT: Jaguar Hunt
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PLOS Climate @plosclimate.org · 02/07/2026
In a major new Essay, Manuel Esperon-Rodriguez and colleagues call for a reframing of urban forests as essential living infrastructure embedded in legal, financial and planning frameworks to deliver cooler, healthier, more biodiverse and socially just cities. journals.plos.org/climate/arti...
journals.plos.org
Rethinking urban forests as essential infrastructure for resilience, equity, and biodiversity in the current climate emergency
Urban forests are not merely green amenities; they support critical ecosystem functioning and services vital for healthy, resilient cities. Recognising urban forests as core infrastructure is essentia...
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Jens-Christian Svenning @jcsvenning.bsky.social · 02/07/2026
Earliest Americans specialized in #megafauna hunting from Alaska to South America, analysis of 50 sites reveals - earliest Native Americans had highly specialized diets, targeting the largest animals consistentlyhttps://phys.org/news/2026-07-earliest-americans-specialized-megafauna-alaska.html
phys.org
Earliest Americans specialized in megafauna hunting from Alaska to South America, analysis of 50 sites reveals
New research led by a University of Alaska Fairbanks archaeologist reveals that the earliest Native Americans had highly specialized diets, primarily hunting the largest animals on the landscape, and ...
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🍁 Alex Smith 🍁 @alexsmithants.bsky.social · 29/06/2026
🧪🧵 🪰 🐜🪲🐞🦗🐛🦋🪳🦟 How many species of insect are there?  A seemingly simple question, but one that has been 'bugging' scientists for years.  Our work out today suggests that there are millions more than we had previously expected.  doi.org/10.1073/pnas... @gdfcf.bsky.social
This photo was taken in Area de Conservacion GuanacasteThis microgastrine wasp was named by co-author Jose Fernandez-Triana in honour of Costa Rican parataxonomist Roberto Espinoza in recognition of his contribution to understanding the plant biology of ACG.  The species is Snellenius robertoespinozai.  The image is Creative Commons Attribution License (CC BY 4.0) so can reused provided the original author (Jose Fernandez-Triana) and the source are properly cited.  The source is: Fernandez-Triana JL, Whitfield JB, Smith MA, Kula RR, Hallwachs W, Janzen DH (2015) Revision of the genera Microplitis and Snellenius (Hymenoptera, Braconidae, Microgastrinae) from Area de Conservacion Guanacaste, Costa Rica, with a key to all species previously described from Mesoamerica. Deutsche Entomologische Zeitschrift 62(2): 137-201. https://doi.org/10.3897/dez.62.5276image of a Malaise trap in Area de Conservacion Guanacaste
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Jens-Christian Svenning @jcsvenning.bsky.social · 27/06/2026
Nice feature by @jdtonkin.bsky.social on my proposal to rethink #ecosystemintegrity from a focus on match to static references to functionality for biodiversity and regional persistence of long-resident lineages - to allow to work more constructively with our Anthropocene biosphere 🌿♨️🌍 #restoration
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Johannes Kasper @herzkasper.bsky.social · 23/06/2026
Thank you for the inspiring keynote at the 68. Annual #IAVS Conference! @jcsvenning.bsky.social @iavs5.bsky.social @iavs-young-sci.bsky.social
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Jens-Christian Svenning @jcsvenning.bsky.social · 22/06/2026
#IAVS2026 #IAVS #vegetation 🌿
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Jens-Christian Svenning @jcsvenning.bsky.social · 22/06/2026
Great start to the annual symposium of International Association for #VegetationScience [#IAVS2026; @iavs5.bsky.social) symposium with a thought-provoking keynote by Mark Vellend on #Anthropocene #vegetation dynamics & #conservation actions🌿Below links to some related work by ECONOVO & collaborators
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Germán Orizaola @gorizaola.bsky.social · 19/06/2026
"Changes in wildlife activity patterns in response to war in Ukraine" @science.org #ChornobylWildlife www.science.org/doi/10.1126/...
science.org
Changes in wildlife activity patterns in response to war in Ukraine
Conflict zones are inherently hazardous and inaccessible for researchers, which results in a knowledge gap about the immediate effects of armed conflicts on the environment, particularly wildlife. We ...
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Conservation Biology Göttingen @consbiogoe.bsky.social · 19/06/2026
Out now: Very nice special issue in #BiologicalConservation: Conservation of Palaearctic steppes and semi-natural grasslands: challenges and solutions.
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Jens-Christian Svenning @jcsvenning.bsky.social · 18/06/2026
The Anthropocene is being mentioned a lot at the World Biodiversity Forum (#WBF2026) - read why it clearly deserves to be recognized as a geological epoch, read our paper: Defining the #Anthropocene as a geological #epoch captures human impacts’ triphasic nature to empower science and action ♨️🌍👣
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Pedro Godoy @pedrolgodoy.bsky.social · 17/06/2026
This is the plain language summary of our recent paper: fesummaries.wordpress.com/2026/06/05/w...
fesummaries.wordpress.com
What do fossils teach us about conservation and ecological restoration?
Thayara S. Carrasco, Catalina Pimiento, Tiago B. Quental, Pedro L. Godoy This is a plain language summary of a Functional Ecology research article which can be found here. The fossil record documen…
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Alejandro Ordonez @anordonez1.bsky.social · 17/06/2026
At #WBF26, @jcsvenning.bsky.social head of @econovoau.bsky.social, takes the stage at #WBF26 to explore the exciting future of biodiversity, delving into Non-Native Species, Novel Ecosystems, and the transformative changes shaping our biosphere.
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Jens-Christian Svenning @jcsvenning.bsky.social · 16/06/2026
#WBF2026 #brainhealth #mentalhealth #greenspace
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Jens-Christian Svenning @jcsvenning.bsky.social · 16/06/2026
🌍 At #WBF2026, “ecosystem integrity” is frequently mentioned. Important: we need to redefine it for an Anthropocene biosphere; not as resemblance to static states but wrt biodiversity-maintaining processes & persistence of long-resident lineages: Integrity should anchor biodiverse futures 🌿➡️
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Jens-Christian Svenning @jcsvenning.bsky.social · 15/06/2026
Check out this postdoc opportunity with us at @econovoau.bsky.social🐪🌿🦌🍃🐂 #ungulates #megafauna #feralspecies #alienspecies #novelecosystems PS: For those at #WBF2026, we have quite a few related presentations in the FUT4 track on Wednesday🐪🌿
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Alejandro Ordonez @anordonez1.bsky.social · 14/06/2026
Had a blast sharing the session on ecological novelty with their team from @econovoau.bsky.social. It was great to have a full room; Laura engaged the audience. Thanks to @jcsvenning.bsky.social, @mattkerr.bsky.social, and Nora Schlenker for joining me on this adventure.
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Jens-Christian Svenning @jcsvenning.bsky.social · 11/06/2026
Our 900,000 people study (PNAS 2019) found children growing up w/ lowest levels of #greenspace had up to 55% higher risk of later psychiatric disorders. Now >1,000 citations — great to see this work continue to inform work on urban #nature & #mentalhealth🌳🏥 ➡️Link in response
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Alejandro Ordonez @anordonez1.bsky.social · 09/06/2026
novelty: not just as loss, but as a lever for biodiversity, society, and biosphere resilience. Come and hear @jcsvenning.bsky.social, head of @econovoau.bsky.social, talk on how we can manage novelty in our #WBF2026 session. 14 June, 3pm | Room Wisshorn #Rewilding #BiodiversityFutures
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Jens-Christian Svenning @jcsvenning.bsky.social · 09/06/2026
New study underscores on DNA from 120,000-year-old fallow deer from Germany shows low genetic differentiation to modern fallow deer specimens, rejecting a separate species status www.eurekalert.org/news-release... 🦌 #fallowdeer #dådyr #deer
eurekalert.org
120,000-year-old European fallow deer – Tracing the loss of genetic diversity
European fallow deer faced a dramatic loss of genetic diversity since the last interglacial period. This was revealed by 120,000-year-old fossils from central Germany's Neumark-Nord site (Saxony-A...
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Alan McElligott @amcell.bsky.social · 02/06/2026
2026. Importance of elephants for dung beetle biodiversity and ecosystem functions | Science www.science.org/doi/10.1126/...
science.org
Importance of elephants for dung beetle biodiversity and ecosystem functions
Ecologists theorize that removing highly connected species from ecological networks will trigger waves of coextinction, but empirical evidence is scant. We show that elephants are central to a general...
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Brian J. Enquist @bjenquist.bsky.social · 01/06/2026
Robust projections of risks to the Amazon rainforest Amazonian deforestation is altering atmospheric moisture transport; as a result, even low levels of global warming could trigger dieback of most of the remaining forest. 🌐🧪https://www.nature.com/articles/d41586-026-01158-8 🌐🧪
nature.com
Robust projections of risks to the Amazon rainforest
Amazonian deforestation is altering atmospheric moisture transport; as a result, even low levels of global warming could trigger dieback of most of the remaining forest.
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