Maria Hällfors
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mariahallfors.bsky.social
Maria Hällfors
@mariahallfors.bsky.social

PhD, Senior Researcher, Finnish Environment Institute. Climate change effects on biodiversity.

FT, Erikoistutkija, Suomen ympäristökeskus. Ilmastonmuutosekologian dosentti

Environmental science 55%
Geography 14%

Vi påpekar att påståendet att klimatförändringen entydigt skulle innebära en “guldålder” för Finland inte stöds av vetenskapliga belägg, är vilseledande och riskerar förringa de allvarliga risker vi står inför.

Essäns behandling av biodiversitet präglas av missförstånd. Forskning visar att klimatförändringens hot mot naturen växer snabbt.

Viktigare än artantal är ekosystemens funktion och stabilitet. Dessa bygger på komplexa nätverk av arter vilka tillsammans producerar de ekosystemtjänster vårt samhälle är beroende av.

Och att avfärda oro för naturens tillstånd är att förbise vetenskapliga rön, samhällets beroende av fungerande ekosystem och det värde som människor sätter på den lokala naturen.

Istället behöver vi en nyanserad men vetenskapligt förankrad diskussion om klimatförändringens negativa – och positiva – effekter, med sin tillhörande osäkerhet och sammankoppling med andra globala förändringar.

Essän (tillgänglig för prenumeranter): lnkd.in/dDvYZi8c

Den 1.6. publicerade Hufvudstadsbladet en essä av Erik Wahlström under rubriken "Klimatförändringen innebär en guldålder för Finland".

Idag svarar undertecknad, Johan Munck af Rosenschöld, Tim Carter och Leif Schulman (alla från Finlands miljöcentral Syke) på essän.

www.hbl.fi/2025-06-16/k...

Tampereella 22.5 järjestetty MUST Forum toi yhteen kaupunkisuunnittelun, alueidenkäytön ja ekologian asiantuntijoita sekä tutkijoita. Tilaisuudessa keskusteltiin, miten suunnitella kaupunkiympäristöjä, joissa niin ihmiset kuin muutkin lajit voivat kukoistaa yhdessä.

must-project.fi/monilajinen-...
Monilajinen oikeudenmukaisuus kaupunkisuunnittelun periaatteena – keskustelua MUST Forumissa 22.5.2025 Tampereella
Tampereen MUST-festivaaleilla järjestetty MUST Forum toi yhteen kaupunkisuunnittelun, alueidenkäytön ja ekologian asiantuntijoita sekä tutkijoita. Tilaisuudessa keskusteltiin, miten suunnitella kaupun...
must-project.fi

Reposted by Maria Hällfors

Tänään julkaistussa kirjoituksessa 👇 korjasimme ilmastonmuutokseen liittyvää ylioptimismia esseessä, jonka @hbl.fi.web.brid.gy oli julkaissut pari viikkoa sitten. Oli ilo työstää tekstiä yhteistyössä @mariahallfors.bsky.social et al.

www.hbl.fi/2025-06-16/k...
INSÄNDARE: Klimatförändringen medför ingen guldålder
Erik Wahlströms essä (HBL 1.6) behandlar ett viktigt ämne, men målar tyvärr upp en missvisande bild av…
www.hbl.fi

We also evaluate the intensity of climate risks on > 1000 European species of conservation concern associated with Natura 2000 sites.

In this study, led by collaborators at the Sapienza Università di Roma as part of the NaturaConnect project, we estimated four metrics of future climate risk across Europe and assess the level of climate exposure of European PAs vs. nonprotected control sites.

Large variation in climate exposure for species of conservation concern was revealed, including 11 species that are highly dependent on Natura 2000 sites and predicted to experience rapid climate change.

Our results show large spatial differences in climate change exposure across Europe, with a faster pace and farther shifts in the Boreal, Steppic, and Pannonian regions.

New publication on *the accelerating exposure of European protected areas to climate change* now out in Global Change Biology!

doi.org/10.1111/gcb....
The Accelerating Exposure of European Protected Areas to Climate Change
We assessed future climate risk for European protected areas, using four climate metrics. We predict high magnitude of change in the Arctic, Alpine, and Mediterranean regions, but high velocity of ch...
doi.org

This means that species communities today a composed of species that are more similar in their thermal requirements than before.

New study led by Jussi Mäkinen out in PNAS! 🤩 🎉

Using several long-term datasets on species in Finland, we show that while most communities have become dominated by warm-affiliated species over time, this is paralleled by a *decrease in thermal diversity*.

www.pnas.org/doi/10.1073/...
Thermal homogenization of boreal communities in response to climate warming | PNAS
Globally, rising temperatures are increasingly favoring warm-affiliated species. Although changes in community composition are typically measured b...
www.pnas.org

Reposted by Maria Hällfors

Hello, BlueSky! 👋

We are OBSGESSION🌍, a Horizon Europe project, committed to the preservation of #biodiversity, with focus on terrestrial and freshwater #ecosystems, utilising #satellite imaging and #EarthObservations.

We are excited to start sharing updates on this platform as well! 🎉

etunimi.sukunimi@syke.fi :)

Are you interested in developing biodiversity footprint calculation methods? Are you a biodiversity expert excited about analyzing large datasets? Join us in making the sustainability transition happen!

valtiolle.fi/en/jobs/post...

#BiodiversityFootprint
Postdoctoral researcher/Senior researcher - Biodiversity Footprint Calculation Methods - Finnish Environment Institute Syke
Open job: Postdoctoral researcher/Senior researcher - Biodiversity Footprint Calculation Methods, Finnish Environment Institute Syke - Find all jobs in Valtiolle.fi
valtiolle.fi

Reposted by Maria Hällfors

Starting the @oikosfinland.bsky.social Ecology & Evolution Conference in Jyväskylä after a great workshop on HSMC modelling yesterday. Can't think of a better way to start my new job at ICM-CSIC! 🐠🌳🪲🦐

Reposted by Maria Hällfors

New attendance record at Oikos Finland conference this year. We've got a full house! #OIKOSFin2025

Kaipaatko kuunneltavaa joululomalle? Tässä 30 min podcast-versio Aleksi Lehikoisen ja minun kirjoittamasta kirjakappaleesta "Miten suomen luonto sopeutuu muuttuvaan ilmastoon".

Hyvää ja kestävää joulua kaikille ❤️ 💚

open.spotify.com/episode/6mKz...

@aksulehikoinen.bsky.social
Miten Suomen luonto sopeutuu muuttuvaan ilmastoon? | Aleksi Lehikoinen & Maria Hällfors
Tiedekulma podcast · Episode
open.spotify.com

Reposted by Maria Hällfors

What a privilege to dive into into the world of this beautiful plant through which we aim to learn more about the interactive effects of climate and land-use changes on boreal forest species, with @susannakoivusaari.bsky.social, @mariahallfors.bsky.social, #MiskaLuoto & artist MarkoHämäläinen.

I talked from my own perspective as an ecologist having been introduced to the concept of multispecies justice about 1.5 years ago and how I now understand it & relate it to my own field of science.

#Transdisciplinarity #Ecology #MultiSpeciesJustice
MUST Forum 7.3.2024. Presentation 4: MUST & Ecological Approaches
This playlist contains four presentations from the MUST forum which took place in Helsinki on March 7th 2024. Speakers: (1) Christopher Raymond - Overview of the MUST project (2) Jonathan Carruthers
https://soundcloud.com/must-project/must-forum-732024-presentation-4-must-ecological-approaches?si=d2a185b3385a49da98369df8c7ede1d7&utm_source=clipboard&utm_medium=text&utm_campaign=social_sharing…

A couple of weeks ago, we in the MUST strategic research project organized a stakeholder forum to discuss scenarios of multispecies transitions. Read more about it here!

You can also listen to podcasts of our short introductory talks

#GreenTransition #NatureBasedSolutions #Ecology
Results of MUST FORUM: Exploring possibilities for incorporating multispecies justice in urban and regional planning
On March 7th, MUST researchers met with stakeholders
must-project.fi

The website of MUST - a newly started Strategic Research project - has been launched!

must-project.fi

In this paper just out in Evolution Letters we outline when & how we could predict adaptive responses to climate change + what might be predictable now, in the future, and perhaps never, even with our best efforts.

#biodiversity #climatechange #evolution

academic.oup.com/evlett/advan...
When and how can we predict adaptive responses to climate change?
Abstract. Predicting if, when, and how populations can adapt to climate change constitutes one of the greatest challenges in science today. Here, we build from
academic.oup.com