Reposted by Jonas TrepelBrian J. Enquist @bjenquist.bsky.social · 28/09/2026Please pass along: I’m recruiting PhD students to join our Macroecology Lab. We study physical ecology, macroecology, and biodiversity — spanning scaling, trait-based ecology, theory, comparative biology & ecoinformatics. Several avenues for funding. Please reach out if interested 🧪🌐🌾 294130
Reposted by Jonas TrepelJulia Kemppinen @juliakemppinen.bsky.social · 18/09/2026Open position! Postdoc project on snow modelling and Arctic ecosystems ❄️🌿🌡️💧 3-yr position with assistant prof @niittynen.bsky.social at @oulu.fi ! See the link and apply by 15.10.2026 oulunyliopisto.varbi.com/fi/what:job/...oulunyliopisto.varbi.comPostdoctoral Researcher in snow and microclimate processes of cold-climate ecosystemsWe are now looking for a Postdoctoral Researcher in snow and microclimate processes of cold-climate ecosystems for a 3-year fixed-term position to join us in the Faculty of Technology, Water, Energy a 0412
Reposted by Jonas TrepelEcography @ecography.bsky.social · 19/08/2026Global analysis suggests nitrogen deposition as an underestimated driver of vegetation greening vist.ly/5fcap #Anthropocence #GlobalWarming #Restoration 053
Jonas Trepel @jonastrepel.bsky.social · 02/08/2026Many thanks to the absolute stellar team of co-authors! @joe-atkinson.bsky.social, @obaines.bsky.social, @mattkerr.bsky.social, Liza le Roux, Hannah Rubin, @jcsvenning.bsky.social and Rob Buitenwerf @econovoau.bsky.social! (5/5) 020
Jonas Trepel @jonastrepel.bsky.social · 02/08/2026Our study is correlational rather than causal, but the consistency of the pattern across biomes and multiple sensitivity analyses suggests atmospheric nitrogen deposition deserves much greater attention in discussions of global vegetation change, biodiversity and Earth system dynamics. (4/5) 100
Jonas Trepel @jonastrepel.bsky.social · 02/08/2026We also compared strictly protected areas with matched unprotected sites. Greening was slightly slower inside PAs, but protection did not alter the relationship between nitrogen deposition and vegetation greening, suggesting these global pressures extend well beyond reserve boundaries. (3/5) 100
Jonas Trepel @jonastrepel.bsky.social · 02/08/2026Using satellite observations from 2001–2024, we assessed how vegetation greening relates to N deposition alongside climate change, fire and human land-use change. Across most major climate zones and ecosystem types, nitrogen deposition showed the strongest association with greening. (2/5) 111
Jonas Trepel @jonastrepel.bsky.social · 02/08/2026Our 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) 1122
Reposted by Jonas TrepelJens-Christian Svenning @jcsvenning.bsky.social · 24/07/2026New @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... #globalgreeningdoi.orgGlobal analysis suggests nitrogen deposition as an underestimated driver of vegetation greeningThe 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 ... 02416
Reposted by Jonas TrepelEmma-Liina Marjakangas @emmamarjakangas.bsky.social · 29/07/2026📢 PhD opportunity at the University of Helsinki! Join the ANEW project to study ecological networks, seed dispersal and biodiversity conservation under global change. Apply by 31 Aug 2026. 🔗 jobs.helsinki.fi/job/31_8_202... #PhD #Ecology #Conservation #AcademicJobsjobs.helsinki.fiDoctoral Researcher (PhD student) in Ecological Networks and Biodiversity ConservationDoctoral Researcher (PhD student) in Ecological Networks and Biodiversity Conservation 03240
Reposted by Jonas TrepelFunctional Ecology @funecology.bsky.social · 08/07/2026👀Behind the Paper!👀 Author Jonas Trepel shares the role of large herbivores as key ecological players, the thorny side of fieldwork, and the importance of doing work that truly interests you🦏 Read it here👇️ buff.ly/pN9WIUX 🧪🌍️ @jonastrepel.bsky.socialbuff.lyJonas Trepel | Keeping the grasses in check: Wild large herbivores promote plant diversity by reducing dominanceIn this behind the Paper blog post, author Jonas Trepel – a postdoctoral researcher at Aarhus University – delves into the world of ecosystems engineers and discusses his paper “W… 13317
Jonas Trepel @jonastrepel.bsky.social · 17/05/2026Thanks @cmlmagneville.bsky.social - likewise! It was a huge pleasure (and incredibly helpful) working with you :) 010
Jonas Trepel @jonastrepel.bsky.social · 16/05/2026Huge thanks to the fantastic co-author team: Liza le Roux, @cmlmagneville.bsky.social, Anika Oosthuizen, Debbie du Preez, Savannah Reichert, @jcsvenning.bsky.social and Rob Buitenwerf - and to everyone else who helped on the ground and maintained these remarkable exclosures over decades. 5/5 162
Jonas Trepel @jonastrepel.bsky.social · 16/05/2026Herbivores also made vegetation more open by reducing vegetation height and density - but these structural changes did not explain impacts on diversity. Instead, reducing dominance seems to be the key mechanism linking herbivores to more diverse and potentially more resilient plant communities. 4/5 161
Jonas Trepel @jonastrepel.bsky.social · 16/05/2026We found that large herbivores increased plant species richness and functional redundancy, mainly by reducing the dominance of a few plant species and allowing more herbaceous plants to coexist. Interestingly, these effects were strong in savannas but largely absent in the thicket. 3/5 141
Jonas Trepel @jonastrepel.bsky.social · 16/05/2026We used six long-term (21-71 years!) exclosure experiments across South African savannas and thicket ecosystems to test how (nearly) intact herbivore communities affect plant communities. 2/5 151
Jonas Trepel @jonastrepel.bsky.social · 16/05/2026Hurray - new paper out in Functional Ecology! @funecology.bsky.social @econovoau.bsky.social Wild large herbivores promote plant diversity and functional redundancy by reducing dominance: besjournals.onlinelibrary.wiley.com/doi/10.1111/... 1/5besjournals.onlinelibrary.wiley.comWild large herbivores promote plant diversity and functional redundancy by reducing dominanceRead the free Plain Language Summary for this article on the Journal blog. 25321
Jonas Trepel @jonastrepel.bsky.social · 16/05/2026We found that large herbivores increased plant species richness and functional redundancy, mainly by reducing the dominance of a few plant species and allowing more herbaceous plants to coexist. Interestingly, these effects were strong in savannas but largely absent in the thicket. 3/5 000
Jonas Trepel @jonastrepel.bsky.social · 16/05/2026We used six long-term (21-71 years!) exclosure experiments across South African savannas and thicket ecosystems to test how (nearly) intact herbivore communities affect plant communities. 2/5 100
Reposted by Jonas TrepelMatt Kerr @mattkerr.bsky.social · 11/05/2026In our new Letter in @society4conbio.bsky.social, we argue that restoration efforts should be guided by ecological impact and not species’ origin. Existing frameworks assess non-native species by their impact on native species. Applied universally, they would indicate all herbivores are harmful. 172
Jonas Trepel @jonastrepel.bsky.social · 11/05/2026This has been a really fun collaboration with a wonderful team: @mattkerr.bsky.social, Rob Buitenwerf, @kristymferraro.bsky.social, Liza le Roux, Erick Lundgren, @maitner.bsky.social, @tanyadoesscience.bsky.social and @jcsvenning.bsky.social @econovoau.bsky.social. Thanks everyone! 182
Jonas Trepel @jonastrepel.bsky.social · 11/05/2026Check out our new letter in Conservation Biology where we argue that (re-)introduced large herbivores are often wrongly framed as harmful because herbivory is automatically equated with ecological damage - overlooking their potential to restore biodiversity and ecosystem functioning. 23512
Reposted by Jonas TrepelECONOVO - DNRF Center of Excellence @econovoau.bsky.social · 20/03/2026On World Rewilding Day, we are celebrating the first ECONOVO @dg.dk-funded PhD 🎉. Today @jonastrepel.bsky.social passed his thesis on Ecological Dynamics in a Novel Biosphere: Large Herbivores as Drivers of Vegetation Structure and Plant Diversity with flying colors and 6 months ahead of time 👏! 0215
Reposted by Jonas TrepelJens-Christian Svenning @jcsvenning.bsky.social · 04/03/2026Dense, dark forests in Europe are a modern phenomenon - Europe’s landscapes for 23 Myr were mostly tree- & flower-rich mosaics shaped by large herbivores, not dense #forests, see our new synthesis www.eurekalert.org/news-release... #forests #woodlands #paleoecology #nature #trees #refiorestationeurekalert.orgDense, dark forests in Europe are a modern phenomenonA new, comprehensive study shows that Europe’s landscapes over the past more than 20 million years have predominantly been a mosaic of grasslands, scrub and woodlands of varying density. A light... 313158
Reposted by Jonas TrepelSean Michaletz @seanmichaletz.bsky.social · 15/01/2026🍁Funding for new PhD students ($40k/yr) & postdocs ($70k/yr) coming from outside Canada. Contact me if interested in #Ecophysiology at #UBC in #Vancouver! Possible topics: leaf physiology, thermal ecology, microclimate, scaling, tree physiology, forest ecology, more! michaletzlab.org Please share! 24449
Reposted by Jonas TrepelJens-Christian Svenning @jcsvenning.bsky.social · 08/01/2026Happy to see this @econovoau.bsky.social paper out in the new issue of Journal of Animal Ecology - higher herbivore activity is linked to greater herb diversity & plant functional redundancy besjournals.onlinelibrary.wiley.com/doi/epdf/10.... #ECONOVO #Biodiversity #savanna #SouthAfrica #Rewilding 02611
Reposted by Jonas TrepelJoe Atkinson @joe-atkinson.bsky.social · 06/01/2026✨ PhD opportunity studying drought and heatwave effects on threatened plants ✨🔥 Funded by an ARC DECRA awarded to the amazing Dr Ilaíne Matos and co-supervised by Dr Sami Rifai and me! Limited by the character limit here, so please see the attached flyer for all the details - please share widely! 11924
Reposted by Jonas TrepelCaroline Lehmann @caroaceae.bsky.social · 23/12/2025"Bond’s work leaves behind an inconvenient lesson for an era of climate urgency: that speed is not a substitute for understanding, and that good intentions, applied without care, can erase ancient worlds as efficiently as neglect." A beautiful tribute to William Bond. Forever missed by many.butlernature.comWilliam Bond, defender of grasslandsIn recent years, one of the loudest ideas in environmental policy has been that trees are the planet’s universal remedy. Plant enough of them, in enough places, and carbon will be soaked up, water wil... 16036
Jonas Trepel @jonastrepel.bsky.social · 17/12/2025Super exciting PhD position on large herbivores, ecosystem functioning and biodiversity conservation in @kampjohannes.bsky.social's fantastic lab in Göttingen @consbiogoe.bsky.social. Please share widely! 021
Reposted by Jonas TrepelBjerknes Center for Climate Research (BCCR) @bjerknes.uib.no · 17/11/2025Ecosystem gas fluxes are crucial to water and energy cycling. Fluxes are measured in closed-loop chambers. But how do you deal with the data? An R package by @jogaudard.bsky.social from @unibergen.bsky.social and Bjerknes simplifies processing and comparison. Check it out! 🧪 doi.org/10.1111/2041... 0103
Reposted by Jonas TrepelJournal of Animal Ecology @animalecology.bsky.social · 17/11/2025🐘 New research - Large herbivores are linked to higher herbaceous plant diversity and functional redundancy across spatial scales ➡️ buff.ly/zqRgqqo @jonastrepel.bsky.social @joe-atkinson.bsky.social @andrewabraham.bsky.social @jessekalwij.bsky.social @jcsvenning.bsky.social @econovoau.bsky.social 14416
Jonas Trepel @jonastrepel.bsky.social · 15/11/2025Good question! It's essentially a metric for the functional overlap in a community (i.e., how many species share similarish traits), which is thought to link to resilience as functionally similar species may compensate for each other's loss. See e.g., doi.org/10.1002/ecs2....esajournals.onlinelibrary.wiley.comDoes functional redundancy affect ecological stability and resilience? A review and meta‐analysisIn light of rapid shifts in biodiversity associated with human impacts, there is an urgent need to understand how changing patterns in biodiversity impact ecosystem function. Functional redundancy is... 130
Jonas Trepel @jonastrepel.bsky.social · 13/11/2025Thanks to the great team, including @joe-atkinson.bsky.social , @andrewabraham.bsky.social, @jessekalwij.bsky.social, @jcsvenning.bsky.social, @econovoau.bsky.social, Rob Buitenwerf, Liza le Roux, Londiwe Mokeona, Michelle Greve, Steven Khosa, Caroline Makofane, Anika Oosthuizen & more! (3/3) 1232
Jonas Trepel @jonastrepel.bsky.social · 13/11/2025higher herbivory intensity in South African savannas increases herbaceous plant richness and functional redundancy. Effects were largely consistent across scales, but strongest at the landscape level, highlighting large herbivores’ role in promoting diversity and ecosystem resilience (2/3) 1220
Jonas Trepel @jonastrepel.bsky.social · 13/11/2025Excited to share that my first PhD chapter just got published in @animalecology.bsky.social! You can check it out here: doi.org/10.1111/1365.... Based on fieldwork in the beautiful Waterberg Biosphere Reserve in South Africa, we show that.. (1/3) 25513
Reposted by Jonas TrepelOur World in Data @ourworldindata.org · 12/11/2025The largest mammals have always been at the greatest risk of extinction – this is still the case today. 🧵 The wipeout of the largest mammals is a global phenomenon that we see across many regions. 44717
Reposted by Jonas TrepelBrian J. Enquist @bjenquist.bsky.social · 21/10/2025Please pass along, I’m recruiting PhD students to join our Macroecology Lab @uofa-eeb.bsky.social We study phys ecology, macroecology, biodiversity - spanning scaling, trait-based ecology, theory, comparative biology & ecoinformatics. Several avenues for funding. Please reach out if interested🧪🌐🌾 2104105
Reposted by Jonas TrepelJoseph Gaudard @jogaudard.bsky.social · 25/09/2025My first PhD paper is out! It describes the fluxible #rstats package, a toolbox to process and quality check #ecosystem #gasfluxes in a reproducible and automated way. @unibergen.bsky.social @btwnthefjords-uib.bsky.social @bjerknes.uib.no @li-corenv.bsky.social @methodsinecoevol.bsky.socialdoi.orgfluxible: An R package to process ecosystem gas fluxes from closed‐loop chambers in an automated and reproducible wayMeasuring ecosystem gas fluxes is crucial to understanding the dynamics of ecosystem water and energy cycling. A common method to measure ecosystem gas fluxes (CO2, CH4, N2O) and to compare experi... 24312
Reposted by Jonas TrepelJens-Christian Svenning @jcsvenning.bsky.social · 21/09/2025Debating the aesthetics of #wind & #solar is a luxury. The real crisis is climate change—threatening billions with deadly heat & catastrophic ecosystem breakdowns ♨️🥵🔥 Green #energy is a necessity🍃 Challenges exist (noise, land use) but are manageable - biggest risk is inaction #dkpol #climatechange 1115146
Reposted by Jonas TrepelProf. Vigdis Vandvik @vvandvik.bsky.social · 28/08/2025Come work with us! Fully funded #PhD position in global change ecology - working in a cross-disciplinary cohort of 8 PhD students studying mountains in transition. 🧪🌐🏔️ @btwnthefjords-uib.bsky.social @cesam-uib.bsky.social www.jobbnorge.no/en/available...jobbnorge.noPhD Research Fellow in global change ecology (285493) | University of BergenJob title: PhD Research Fellow in global change ecology (285493), Employer: University of Bergen, Deadline: Wednesday, October 1, 2025 13438
Reposted by Jonas TrepelConservation Biology Göttingen @consbiogoe.bsky.social · 28/08/2025New paper: 3rd chapter of Anne Graser's PhD thesis now published: How #forest disturbance, post-disturbance management and wild #ungulates affect #moth communities: besjournals.onlinelibrary.wiley.com/doi/10.1111/... @jappliedecology.bsky.social 1228
Jonas Trepel @jonastrepel.bsky.social · 17/08/2025Team: It was a pleasure working with a great team from @econovoau.bsky.social, the Bavarian Forest NP and @wild-ecol-cons.bsky.social, including @andrewabraham.bsky.social, Walter Di Nicola, Uriel Gélin, Martin Gahbauer, Marco Heurich and Elizabeth le Roux. (5/5) 030
Jonas Trepel @jonastrepel.bsky.social · 17/08/2025Takeaway: A solution to one problem (deer-human conflict) may inadvertently shift landscape chemistry and compromise conservation goals, highlighting the need to critically evaluate all potential consequences of common management approaches such as supplementary feeding. (4/5) 130
Jonas Trepel @jonastrepel.bsky.social · 17/08/2025Why it matters: These elevated nutrients could cascade through the ecosystem and for example affect soil microbial activity, alter plant communities, and even affect other herbivores. (3/5) 130
Jonas Trepel @jonastrepel.bsky.social · 17/08/2025Setup & findings: In the Bavarian Forest NP (and many other places), managers use winter feeding to manage deer populations. We found this raises plant nutrient levels not just at feeding sites, but hundreds of meters beyond. Read the full paper for more detail! (2/5) 130
Jonas Trepel @jonastrepel.bsky.social · 17/08/2025I’m very happy to share our new paper “Intensive feeding modifies nutrient patterns in a strictly protected area” (doi.org/10.1016/j.je...), just out in Journal of Environmental Management. We explore underestimated consequences of a common management practice: supplementary feeding of deer. (1/5)doi.orgRedirecting 183
Reposted by Jonas TrepelMeade Krosby @meadekrosby.bsky.social · 01/08/2025This paper is getting attention for suggesting ecosystem restoration won't help with mitigation, but restoration is still *critical* for adaptation. Restoring coastal wetlands helps reduce risks from sea level rise and hurricanes, restoring urban forests helps reduce risks from extreme heat, etc...nature.comLimited carbon sequestration potential from global ecosystem restoration - Nature GeoscienceThe maximum carbon sequestration potential from global terrestrial ecosystem restoration efforts until 2100 is 96.9 Gt, which is equivalent to 3.7–12.0% of anthropogenic emissions until then, accordin... 36834
Reposted by Jonas TrepelDr Charlie Gardner @charliejgardner.bsky.social · 01/08/2025We can't rely on nature to fix climate change because ecosystems will collapse as heating worsens The only way out is to eliminate fossil fuels at double speed ... and protect and restore nature for a gazillion other reasonsnature.comLimited carbon sequestration potential from global ecosystem restoration - Nature GeoscienceThe maximum carbon sequestration potential from global terrestrial ecosystem restoration efforts until 2100 is 96.9 Gt, which is equivalent to 3.7–12.0% of anthropogenic emissions until then, accordin... 26334
Reposted by Jonas TrepelOur World in Data @ourworldindata.org · 18/06/2025Half of the world’s habitable land is used for agriculture, with most of this used to raise livestock for dairy and meat. How much would our agricultural land use decline if the world adopted a plant-based diet? 816573