Ramona Heim

Submit your thematic session proposal by Friday, 16 January!
@nordicjbotany.bsky.social @ecography.bsky.social @oikosjournal.bsky.social @wildlifebiology.bsky.social @avianbiology.bsky.social

Come work with us! #PhD position on #ecosystem and #biodiversity effects of large #herbivores on the Eurasian steppes now announced: www.euraxess.de/jobs/395512

Nice combination of fieldwork and meta-analysis, co-supervised by @jonastrepel.bsky.social and ejlundgren.github.io

You can join my free online lecture on GitHub Copilot (Thu 18.12., 4-5 pm CET)

I’ll show context-aware code completion, chatting with your scripts and projects & responsible use.

I'll use R/Python + Positron; but works similarly in other languages/editors.

👉 Details & link: tinyurl.com/2xubc787

With more and more Arctic plant folks joining 🌱❄️, what better excuse to drop this starter pack again? 🔁💎 If you want to join in, just give me a shout!

3 year Postdoctoral Research Fellow position in Landscape Multifunctionality here in beautiful Bergen jobbnorge.no/en/available... please repost

Great fun indeed to win our institute´s volleyball tournament with the migration ecology team including @ramonaheim.bsky.social 🤩

High microplastic pollution in birds of urban waterbodies revealed by non-invasively collected faecal samples | www.sciencedirect.co... | Science of The Total Environment | #ornithology 🪶

#Fieldwork update from our PyroDiv project (uni-goettingen.de/en/690609.html): A Kazakh-German field team is now collecting data on the Great Steppe to reveal the impact of fire legacies and grazing on biodiversity. Great collab between @acbk.bsky.social @consbiogoe.bsky.social and @uni-muenster.de.

Illustration of a Greenlandic landscape, showing in the foreground Rhododendron lapponicum on a cliff, with sea ice and icebergs in the background. Illustration by Alberto S. Ballesteros (@asbillustration.bsky.social)

🌸Plant diversity dynamics over space and time in a warming Arctic 🌸

Our new study @nature.com analysed plant diversity change in >2000 tundra plots over 4 decades. We found that plants changed unevenly, mostly driven by warming and biotic interactions.

www.nature.com/articles/s41...

🧵 (1/7) 🌐🧪🌱🌍

Logo of the 2025 Annual Meeting of the GfÖ in Würzburg, Germany.

Fellow Ecologists,
The #gfoe2025 @gfoesoc.bsky.social call for papers has just been published. Please submit your abstracts for exciting talks and engaging posters to present in Würzburg in September!
gfoe-conference.de/index.php?ca...
@uni-wuerzburg.de @globalchangeeco.bsky.social

Next generation Arctic vegetation maps: Aboveground plant biomass and woody dominance mapped at 30 m resolution across the tundra biome The Arctic is warming faster than anywhere else on Earth, placing tundra ecosystems at the forefront of global climate change. Plant biomass is a fund…

First circumpolar maps of aboveground tundra biomass at 30 m resolution 💪 www.sciencedirect.com/science/arti...

These new estimates show that in total tundra plants (above-and belowground) store around 8 Pg C while the upper 30 cm soils store ca 53 Pg C.

World map showing origin of the data

Our study ‘The global human impact on biodiversity’ is out in Nature!

Through an unprecedented synthesis (2133 studies!) we show that humans are not only shrinking species numbers—but reshaping entire communities across the planet. 🌍🌐🐟🌿🪲

www.nature.com/articles/s41...

Tracking the migration of a Bluethroat Luscinia svecica svecica from central Siberia - Journal of Ornithology The Red-spotted Bluethroat (Luscinia svecica svecica) has a large breeding range in northern Eurasia and populations are known to migrate along the Indo-European or the East Asian flyway towards winte...

Now online in Journal of #Ornithology

Tracking the migration of a Bluethroat Luscinia svecica svecica from central Siberia

Short Communication, Open Access

link.springer.com/article/10.1...

Stationary sites of a Bluethroat breeding Central Siberia and tracked with light-level geolocators in comparison with previously tracked Bluethroats from Europe and East Siberia.

New #ornithology paper ⏰

#birdmigration of a Bluethroat from Siberia along the Central Asian flyway to India/Pakistan

doi.org/10.1007/s103...

Based on BSc thesis of Sarah Strubbe & together with many collaborators 🇷🇺🇩🇪🇩🇰🇨🇭 incl. @ramonaheim.bsky.social

Great fieldwork in Siberia during pre-war times

🌳 These heterogeneous burn areas contain small unburned patches that may be crucial for post-fire vegetation recovery.
🏞️ Pre-fire topography and vegetation conditions were key predictors for burn patterns, offering potential improvements for future fire spread models.

🛰️ We used high-resolution (3 m) satellite imagery to map patchy tundra fire scars from the extreme 2020 Siberian fire season.
🔍 Our fine-scale analysis revealed mixed burned/unburned areas missed by previous studies, potentially underestimating fire effects like carbon emissions.

Pre‐Fire Vegetation Conditions and Topography Shape Burn Mosaics of Siberian Tundra Fire Scars Fine-scale burn patterns of Siberian tundra fires led to an underestimation of burned area in medium-resolution satellite products Small unburned patches (<30 m)–which are crucial for post-fire e...

🔥🔥🔥 Exciting new tundra fire paper led by Nils Rietze!
Fine-scale burn patterns in Siberian tundra fires hold clues for improved predictions of fire spread and vegetation recovery.
Read more: agupubs.onlinelibrary.wiley.com/doi/10.1029/...

🚨We are hiring🚨ECR with a PhD within 7 years? Tenure track position (akin to Assistant Prof) in Earth and Env Data Science at U of Gothenburg, Sweden. Expertise in remote sensing and machine learning. Work on climate change, Earth systems, biodiversity, #EO, #UAV Deadline May 10 tinyurl.com/58ft38du

Thank you, Robert!

Thanks a lot for this Pack! Could you add me as well, please?

Coloured dots on a circumpolar Arctic map show data from the 15 datasets included.

We call for future studies to address possible tundra ecosystem shifts linked to fires, using methods that cover greater temporal and spatial scales.

We hypothesise that post-fire tundra recovery, coupled with climate change, may not return to pre-fire conditions.
We propose two climate-fire driven trajectories:
1) Low fire frequency 🔥: Increased woody vegetation 🌳
2) High fire frequency 🔥🔥🔥: Grass dominance 🌾

Trends in the long-term development of vegetation cover of five plant functional types after tundra fires

Our review synthesises current knowledge on post-fire vegetation cover trajectories in Arctic tundra ecosystems:

Arctic tundra ecosystems under fire—Alternative ecosystem states in a changing climate? Climate change is altering the Arctic tundra, with fires driving vegetation shifts. We hypothesise that post-fire recovery, shaped by climate change, may not return to pre-fire conditions, leading to...

Just published: A mini-review on post- #fire vegetation trajectories in #Arctic #tundra, co-authored with a team of international researchers @jandt-or.bsky.social 🌿🔥Link to the paper: doi.org/10.1111/1365...

Postdoctoral Researcher, Biodiversity Change Postdoctoral Researcher, Biodiversity Change

Fab-looking postdoc in biodiversity change with Julia Kemppinen at @helsinki.fi to work on plant-microclimate relationships:

jobs.helsinki.fi/job/Helsinki...

Possible migrations routes and survival estimates for eastern and western populations of Yellow-breasted Bunting.

Yellow-breasted Bunting with coloured leg rings and tracking device (geolocator) on its back

Finally published: migration routes and adult survival of the critically endangered Yellow-breasted Bunting

doi.org/10.1038/s415...

-moderate survival in E but no returning birds in W
-long autumn (moult) stopovers in China

Many thanks to all collaborators in 🇷🇺🇩🇪🇲🇳🇹🇭🇲🇲

#animalmigration #ornithology

Oil and gas extraction regions are the hotspots of light-emitting human activity in the Arctic

Industrial activity in the Arctic is rapidly increasing and now we can map hotspots of development at pan-Arctic scale. Our latest paper is out.

www.pnas.org/doi/10.1073/...