Dr. Mariana García Criado
@nanitundra.bsky.social
1.4K followers 660 following 57 posts
She/her | Macroecologist | Lover of maps, plants & cheese | Marie Skłodowska-Curie Research Fellow @creaf.cat via University of Edinburgh, IUCN | Assoc Editor at Arctic, Antarctic and Alpine Research
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nanitundra.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) 🌐🧪🌱🌍
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)
Reposted by Dr. Mariana García Criado
Reposted by Dr. Mariana García Criado
instaar.bsky.social
🌱 New ecology paper:
A large team led by Mariana García Criado (U Edinburgh) analyzed 1,100+ plots in the Arctic (40 years of data) to look in detail at how boreal plants are increasing on the tundra as the climate warms. Sarah Elmendorf (INSTAAR+EBIO) is a co-author. Read the thread ⬇️
nanitundra.bsky.social
🌲 Boreal-tundra species drive Arctic plant borealization 🌲

Our new study in #EcologyLetters quantifies tundra plant borealization, assesses its main drivers and identifies the species & traits contributing to borealization.

doi.org/10.1111/ele....

🧵 (1/6) 🌐🧪🌱🌍
Illustration of a branch of Betula glandulosa (Resin birch). Illustration by Alberto S. Ballesteros (@asbillustration.bsky.social).
Reposted by Dr. Mariana García Criado
robertgbjork.bsky.social
Excited to welcome a passionate group of Arctic scientists to the 22nd International Tundra Experiment (ITEX) meeting at Nordens Ark, on Sweden’s stunning west coast!
Reposted by Dr. Mariana García Criado
plantteaching.bsky.social
I can't help it, I just think they are so cute.
Living in Scotland means I'm constantly lagging behind on our walks as I stop to get a closer look.
Does everyone react that way when they see a bryophyte? 💚
Nice work here 👇
www.nature.com/articles/s41...
Bryophyte gene family space
Reposted by Dr. Mariana García Criado
scar-antarctic.bsky.social
Charlotte Walshaw & Dr. Gabriel Stefanelli-Silva report on their 2025 Science-Policy Fellowships.

From turning long-term monitoring into policy insights to guiding Southern Ocean governance, their work linked science & decision-making.

🌱🛰️ Charlotte: bit.ly/4pZOiWz
🌊🧴 Gabriel: bit.ly/4nk71tT
nanitundra.bsky.social
We are calling for abstracts for the @worldbioforum.bsky.social session 'Understanding and caring for Arctic biodiversity together'. This will be an interdisciplinary, free-form session open to all taxa, regions and forms of knowledge. Submission deadline 18 Nov. Looking forward to hearing from you!
worldbioforum.bsky.social
🌎🌿We're now accepting submissions for oral or poster abstracts for WBF2026 in☀️Davos. Explore over 90 engaging sessions, covering biodiversity-ecosystem fundamentals, policy, finance and law❗Submit now: worldbiodiversityforum.org/call-for-abs...
#Biodiversity #WBF2026
Reposted by Dr. Mariana García Criado
nordborn.bsky.social
Amazing work led by @nanitundra.bsky.social on plant borealization across the Arctic - where, why and by whom using the ITEX+ database 🌱
dx.doi.org/10.1111/ele....
nanitundra.bsky.social
Thank you Luise for the great data from Torngats (and everything else)!
nanitundra.bsky.social
@icarex.bsky.social the artist is @asbillustration.bsky.social - this is acknowledged in the image description of the illustration and in the last post of the thread :)
Reposted by Dr. Mariana García Criado
luiseconservation.bsky.social
Excellent work by Mariana and team! Wonderful to have such an incredible database that's shared to understand tundra dynamics.
nanitundra.bsky.social
This work was based on the amazing International Tundra Experiment (ITEX) and funded by @ec.europa.eu @nordborn.bsky.social & others. Thanks to my 38 wonderful coauthors, including @icbarrio.bsky.social @annebeejay.bsky.social @robertgbjork.bsky.social @matsbjorkman.bsky.social (5/6)
A close-up of a young branch of Betula nana (Dwarf birch) growing in an alpine area in Finnish Lapland. Credit Mariana García Criado. A photo of a researcher conducting plant surveys in Kilpisjärvi, Finnish Lapland, next to a stream and with snowy mountains in the background. Credit Jiri Subrt.
nanitundra.bsky.social
Thank you as always for all your great input, Robert! Looking forward to toasting to this next week!
Reposted by Dr. Mariana García Criado
robertgbjork.bsky.social
Absolutely thrilled 🎉 to have contributed to this exciting paper, brilliantly led by @nanitundra.bsky.social 🌟 Such a joy to be part of this inspiring team! 🚀🙌
nanitundra.bsky.social
🌲 Boreal-tundra species drive Arctic plant borealization 🌲

Our new study in #EcologyLetters quantifies tundra plant borealization, assesses its main drivers and identifies the species & traits contributing to borealization.

doi.org/10.1111/ele....

🧵 (1/6) 🌐🧪🌱🌍
Illustration of a branch of Betula glandulosa (Resin birch). Illustration by Alberto S. Ballesteros (@asbillustration.bsky.social).
Reposted by Dr. Mariana García Criado
creaf.cat
CREAF @creaf.cat · 16d
Boreal plants are moving into the #Arctic and reshaping #tundra landscapes 🌱❄️

A 🟢NEW STUDY🟢 led by @edinburgh-uni.bsky.social and @creaf.cat reveals shrubs and grasses from boreal forests are expanding north.

So what? 👇
Persicaria bistorta, common bistort in the swiss alps. Credit_ Mariana Garcia Criado
nanitundra.bsky.social
This work was based on the amazing International Tundra Experiment (ITEX) and funded by @ec.europa.eu @nordborn.bsky.social & others. Thanks to my 38 wonderful coauthors, including @icbarrio.bsky.social @annebeejay.bsky.social @robertgbjork.bsky.social @matsbjorkman.bsky.social (5/6)
A close-up of a young branch of Betula nana (Dwarf birch) growing in an alpine area in Finnish Lapland. Credit Mariana García Criado. A photo of a researcher conducting plant surveys in Kilpisjärvi, Finnish Lapland, next to a stream and with snowy mountains in the background. Credit Jiri Subrt.
nanitundra.bsky.social
Our findings indicate that tundra borealization might not involve rapid displacement of tundra by boreal species, but rather an overall increase in the abundance of boreal species with already established presence in the Arctic. (4/6)
A landscape photo of birch trees growing on the sides of a ridge in Kilpisjärvi, Finland, with snowy mountains and a lake in the background. Credit Mariana García Criado.
nanitundra.bsky.social
At the species level, boreal-tundra species colonised Arctic plots more often than boreal specialists. Boreal species that colonised more often were shorter, and more likely to be shrubs and graminoids. (3/6)
A close-up of the shrub Vaccinium myrtillus (European blueberry). Credit Mariana García Criado. Figure with two subplots indicating that boreal plants that colonised Arctic plants more often were usually shorter, and more likely shrubs and graminoids.
nanitundra.bsky.social
Half of our studied plots (1137) experienced colonisations by or increases in abundance of boreal species. At the community level, borealization was greater at sites in Eurasia, alpine zones, closer to treeline, and at warmer and wetter sites. (2/6)
Figure with 4 subplots: two maps and two plots, showing that rates of borealization were highly variable across Arctic plots. ALT TEXT: A close up of a sapling of Betula pubescens (Downy birch) growing among Phyllodoce caerulea (Blue heath) in the Swedish tundra. Credit Anne Bjorkman (@annebeejay.bsky.social).
nanitundra.bsky.social
🌲 Boreal-tundra species drive Arctic plant borealization 🌲

Our new study in #EcologyLetters quantifies tundra plant borealization, assesses its main drivers and identifies the species & traits contributing to borealization.

doi.org/10.1111/ele....

🧵 (1/6) 🌐🧪🌱🌍
Illustration of a branch of Betula glandulosa (Resin birch). Illustration by Alberto S. Ballesteros (@asbillustration.bsky.social).
Reposted by Dr. Mariana García Criado
vvandvik.bsky.social
Come work with us!

In two week's time, application deadlines close for eight fully funded #PhD positions who will be working together on understanding and mitigating global change impacts and feedbacks from mountains:

cmt.w.uib.no/open-positio...
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