Jonas Trepel
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jonastrepel.bsky.social
Jonas Trepel
@jonastrepel.bsky.social
Phd student at Aarhus University. Broadly interested in conservation biology, rewilding, megafauna ecology, global change & biodiversity.
Excited 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)
November 13, 2025 at 4:27 PM
Reposted by Jonas Trepel
The 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.
November 12, 2025 at 1:04 PM
Reposted by Jonas Trepel
Please 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🧪🌐🌾
October 21, 2025 at 5:13 AM
Reposted by Jonas Trepel
Debating 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
September 21, 2025 at 9:40 AM
Reposted by Jonas Trepel
Come 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...
PhD Research Fellow in global change ecology (285493) | University of Bergen
Job title: PhD Research Fellow in global change ecology (285493), Employer: University of Bergen, Deadline: Wednesday, October 1, 2025
www.jobbnorge.no
August 28, 2025 at 6:27 PM
Reposted by Jonas Trepel
New 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
August 28, 2025 at 2:33 PM
I’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)
Redirecting
doi.org
August 17, 2025 at 12:47 PM
Reposted by Jonas Trepel
This 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...
Limited carbon sequestration potential from global ecosystem restoration - Nature Geoscience
The 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...
www.nature.com
August 1, 2025 at 7:03 PM
Reposted by Jonas Trepel
We 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 reasons
Limited carbon sequestration potential from global ecosystem restoration - Nature Geoscience
The 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...
www.nature.com
August 1, 2025 at 9:00 AM
Reposted by Jonas Trepel
Half 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?
June 18, 2025 at 11:01 AM
Reposted by Jonas Trepel
fluxible v1.2.3 (dev)
flux_lrc: standardizes CO2 fluxes at fixed PAR values with light response curves

Experimental, feedback more than welcome!

@btwnthefjords-uib.bsky.social @hilaryrosed.bsky.social @jonastrepel.bsky.social @martabaumane.bsky.social #rstats #ecosystemgasfluxes #carbonfluxes
Standardizes CO2 fluxes at fixed PAR values — flux_lrc
Calculates light response curves for CO2 fluxes and standardizes CO2 fluxes according to the LRC
plant-functional-trait-course.github.io
June 13, 2025 at 8:17 AM
Reposted by Jonas Trepel
A 2021 #ScienceReview showed how the rapidly changing soundscape of modern oceans impacts marine life globally—and how mitigating these impacts is key to achieving a healthier ocean.

Learn more on #WorldOceansDay: scim.ag/4jFFb8V
June 8, 2025 at 2:07 PM
Reposted by Jonas Trepel
If you want to reduce the carbon footprint of your diet, less meat is nearly always better than sustainable meat.
May 13, 2025 at 6:24 PM
Reposted by Jonas Trepel
Just got the licoread R package on CRAN!
It imports raw files from LI-COR gas analyzers and turns them into a #fluxible friendly dataframe
#rstats @li-corenv.bsky.social
jogaudard.github.io/licoread/
Reads Raw Files from Li-COR Gas Analyzers
Reads raw files from Li-COR gas analyzers and produces a dataframe that can directly be used with fluxible <https://cran.r-project.org/package=fluxible>.
jogaudard.github.io
May 9, 2025 at 11:56 AM
Check out our new paper, led by Bent Rech: we investigate space use of semi-feral water buffalo, cattle, and horses in a Danish rewilding area. We found that the three species differ markedly in their seasonal habitat selection and responses to resources and infrastructure.
doi.org/10.1007/s002...
April 29, 2025 at 8:50 AM
Reposted by Jonas Trepel
Looking for an R based solution to process ecosystem gas fluxes data from closed loop chamber systems?

Come to my #EGU25 talk!
🗓️2025-04-30
⌚11:50
📍2.95

meetingorganizer.copernicus.org/EGU25/EGU25-...

#rstats #OpenScience
April 29, 2025 at 7:15 AM
Reposted by Jonas Trepel
Postdoc alert! Looking for someone to join our new savanna zoogeochemistry project with @ymalhi.bsky.social and Mark Robertson. Please circulate widely! Contact me if interested. #ecosystemecology #largemammalherbivores #termites

my.corehr.com/pls/ulivrecr...
April 28, 2025 at 12:14 PM
Reposted by Jonas Trepel
Scientists must push back against the threat of rising white nationalism and the dangerous and pseudoscientific ideas of eugenics

https://go.nature.com/4jGqiUc
Eugenics is on the rise again: human geneticists must take a stand
Scientists must push back against the threat of rising white nationalism and the dangerous and pseudoscientific ideas of eugenics.
go.nature.com
April 24, 2025 at 1:18 PM
Reposted by Jonas Trepel
🌿 Our new study in @natplants.nature.com: Most European temperate forest plants are associated with semi-open, herbivore-shaped habitats—not closed-canopy #forests 🐎🌳🔆🌸 Highlights the need for trophic #rewilding in #conservation & need to avoid uniform dense #reforestation🌿
📄 doi.org/10.1038/s414...
Temperate forest plants are associated with heterogeneous semi-open canopy conditions shaped by large herbivores - Nature Plants
Temperate forest plants favour heterogeneous semi-open woodlands associated with high herbivore densities, rather than uniform closed-canopy forests. Herbivore loss is therefore a probable driver of e...
doi.org
April 14, 2025 at 11:30 AM
Reposted by Jonas Trepel
I am recruiting a doctoral researcher to conduct research on tundra plants and microclimates 🌱🌡️💧❄️ Call ends April 25! jobs.helsinki.fi/job/Helsinki...
Doctoral Researcher, Biodiversity Change
Doctoral Researcher, Biodiversity Change
jobs.helsinki.fi
April 16, 2025 at 9:51 AM
Reposted by Jonas Trepel
As climate change will fundamentally change the environment

we cannot carry on with traditional conservation & hope that will be enough

We need to start investigating new approaches to maintain functioning ecosystems

Our new paper
besjournals.onlinelibrary.wiley.com/doi/10.1111/...
Revisiting the case for assisted colonisation under rapid climate change
Maintaining functioning ecosystems in a hotter world will require mass-scale assisted colonisation, so appropriate conservation policy, legislative frameworks and regulating bodies must be urgently d....
besjournals.onlinelibrary.wiley.com
March 28, 2025 at 7:29 AM
Reposted by Jonas Trepel
The third part of my PhD work is now out on Early View in @ecography.bsky.social, available #OpenAccess. 🌐🐚

We were interested in how macroecological patterns recreated from OBIS data might differ from those seen in the field and across methods -

nsojournals.onlinelibrary.wiley.com/doi/10.1111/...
Regional databases demonstrate macroecological patterns less clearly than systematically collected field data
The analysis of macroecological patterns has necessitated the use of large, composite datasets recording local-scale species occurrences distributed across the globe. These datasets, however, have va....
nsojournals.onlinelibrary.wiley.com
March 19, 2025 at 11:20 AM