Jens-Christian Svenning
@jcsvenning.bsky.social
Scientist: #biodiversity, #macroecology, #climatechange, #restoration & #rewilding, #novelecosystems, #plants & #vegetation, #megafauna, #human-#nature relations & #remotesensing. Director, https://econovo.au.dk/
Fin artikel i Weekendavisen om vores nye studie om hvordan mennesker I Europa (jægersamlere af vores art og neandertalere) påvirkede økosystemerne via jagt og brug af ild 🦣🔥👣🌿 Man kan også læse mere i pressemeddelelsen fra Aarhus University - se link i kommentar💡 #økologi #arkæologi
October 25, 2025 at 7:15 AM
Fin artikel i Weekendavisen om vores nye studie om hvordan mennesker I Europa (jægersamlere af vores art og neandertalere) påvirkede økosystemerne via jagt og brug af ild 🦣🔥👣🌿 Man kan også læse mere i pressemeddelelsen fra Aarhus University - se link i kommentar💡 #økologi #arkæologi
🔥See our new paper led by @nikulinaav.bsky.social
People shaped Europe’s #ecosystems long before farming
🦣#Megafauna effects on #vegetation openness dropped from 77%→57% bt #Eemian & #Mesolithic
🧑🦱Mesolithic people shaped up to 47% of landscapes w Neanderthals affecting 6–14%
doi.org/10.1371/jour...
People shaped Europe’s #ecosystems long before farming
🦣#Megafauna effects on #vegetation openness dropped from 77%→57% bt #Eemian & #Mesolithic
🧑🦱Mesolithic people shaped up to 47% of landscapes w Neanderthals affecting 6–14%
doi.org/10.1371/jour...
October 23, 2025 at 8:07 AM
🔥See our new paper led by @nikulinaav.bsky.social
People shaped Europe’s #ecosystems long before farming
🦣#Megafauna effects on #vegetation openness dropped from 77%→57% bt #Eemian & #Mesolithic
🧑🦱Mesolithic people shaped up to 47% of landscapes w Neanderthals affecting 6–14%
doi.org/10.1371/jour...
People shaped Europe’s #ecosystems long before farming
🦣#Megafauna effects on #vegetation openness dropped from 77%→57% bt #Eemian & #Mesolithic
🧑🦱Mesolithic people shaped up to 47% of landscapes w Neanderthals affecting 6–14%
doi.org/10.1371/jour...
Bumble #bee #pollination of #linden already 24.6 milllion years ago - cool new empirical illustration of the deep roots of the ecologies of modern-day species www.sci.news/paleontology...
(photo 1: commons.wikimedia.org/wiki/File:Bombus_hypnorum_-_Tilia_cordata_-_Keila.jpg)
(photo 1: commons.wikimedia.org/wiki/File:Bombus_hypnorum_-_Tilia_cordata_-_Keila.jpg)
October 17, 2025 at 5:12 AM
Bumble #bee #pollination of #linden already 24.6 milllion years ago - cool new empirical illustration of the deep roots of the ecologies of modern-day species www.sci.news/paleontology...
(photo 1: commons.wikimedia.org/wiki/File:Bombus_hypnorum_-_Tilia_cordata_-_Keila.jpg)
(photo 1: commons.wikimedia.org/wiki/File:Bombus_hypnorum_-_Tilia_cordata_-_Keila.jpg)
Flowers in my garden right now :)
October 13, 2025 at 3:55 AM
Flowers in my garden right now :)
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
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
Past to future 2/2 🌍 We outline 7 key actions: protect historical data, expand digitization, harness new tech (AI, CV), engage citizen science, ensure FAIR & ethical use, foster inter- & transdisciplinary work. Past insights for future #conservation🌱Big thx to @laenavarro.bsky.social for leading!
September 6, 2025 at 9:40 AM
Past to future 2/2 🌍 We outline 7 key actions: protect historical data, expand digitization, harness new tech (AI, CV), engage citizen science, ensure FAIR & ethical use, foster inter- & transdisciplinary work. Past insights for future #conservation🌱Big thx to @laenavarro.bsky.social for leading!
Past to future 1/2 🌍 Our new Nature Reviews Biodiversity @natrevbiodiv.nature.com perspective shows how archives, maps, art, oral histories & palaeo-records can enrich #biodiversity science—helping set baselines, track change & inform #conservation. 🔗 rdcu.be/eEcIt #history #ecology #baselines
September 6, 2025 at 9:37 AM
Past to future 1/2 🌍 Our new Nature Reviews Biodiversity @natrevbiodiv.nature.com perspective shows how archives, maps, art, oral histories & palaeo-records can enrich #biodiversity science—helping set baselines, track change & inform #conservation. 🔗 rdcu.be/eEcIt #history #ecology #baselines
Symposia at #TIBS2026:
• Functional island #biogeography
• Co-evolution of #landscape & life
• Biocultural #geography incl. #culture & #languages
• Quantitative #paleoecology in the era of big data
📅 Abstracts –Sep 8
📅 Early-bird reg. Oct 31, 2025
👉 conferences.au.dk/tibs-aarhus-2026/registration
• Functional island #biogeography
• Co-evolution of #landscape & life
• Biocultural #geography incl. #culture & #languages
• Quantitative #paleoecology in the era of big data
📅 Abstracts –Sep 8
📅 Early-bird reg. Oct 31, 2025
👉 conferences.au.dk/tibs-aarhus-2026/registration
September 4, 2025 at 7:58 PM
Symposia at #TIBS2026:
• Functional island #biogeography
• Co-evolution of #landscape & life
• Biocultural #geography incl. #culture & #languages
• Quantitative #paleoecology in the era of big data
📅 Abstracts –Sep 8
📅 Early-bird reg. Oct 31, 2025
👉 conferences.au.dk/tibs-aarhus-2026/registration
• Functional island #biogeography
• Co-evolution of #landscape & life
• Biocultural #geography incl. #culture & #languages
• Quantitative #paleoecology in the era of big data
📅 Abstracts –Sep 8
📅 Early-bird reg. Oct 31, 2025
👉 conferences.au.dk/tibs-aarhus-2026/registration
🌍 The International Biogeography Society’s 12th Biennial Conference — TIBS Aarhus 2026 — will take place Jan 6–10 in Aarhus, Denmark: conferences.au.dk/tibs-aarhus-... 🐘🍃🌴We're looking forward to hosting it!
#Biogeography is central to understanding the #biosphere & is more important than ever!♨️
#Biogeography is central to understanding the #biosphere & is more important than ever!♨️
September 4, 2025 at 7:49 PM
🌍 The International Biogeography Society’s 12th Biennial Conference — TIBS Aarhus 2026 — will take place Jan 6–10 in Aarhus, Denmark: conferences.au.dk/tibs-aarhus-... 🐘🍃🌴We're looking forward to hosting it!
#Biogeography is central to understanding the #biosphere & is more important than ever!♨️
#Biogeography is central to understanding the #biosphere & is more important than ever!♨️
Danish #megafauna -a big bull elk (#moose) from postglacial Funen (Broholm castle). The extirpation of elk from temperate Europe was part of a broader human-driven loss of large-bodied #mammals across the #Holocene, as we recently showed: onlinelibrary.wiley.com/doi/10.1111/... 🫎🫎🏹 #extinction
August 31, 2025 at 4:31 PM
Danish #megafauna -a big bull elk (#moose) from postglacial Funen (Broholm castle). The extirpation of elk from temperate Europe was part of a broader human-driven loss of large-bodied #mammals across the #Holocene, as we recently showed: onlinelibrary.wiley.com/doi/10.1111/... 🫎🫎🏹 #extinction
Why did some #megafauna survive? 🦣🦘🦌
Our new study shows #extinction risk was higher for larger, flat-footed, island species— and lower for those closely related to tropical African/Asian fauna, likely filtered by earlier human impacts 👣🍖
📄 doi.org/10.1111/geb....
#hominid #hunting #evolution
Our new study shows #extinction risk was higher for larger, flat-footed, island species— and lower for those closely related to tropical African/Asian fauna, likely filtered by earlier human impacts 👣🍖
📄 doi.org/10.1111/geb....
#hominid #hunting #evolution
August 2, 2025 at 10:40 PM
Why did some #megafauna survive? 🦣🦘🦌
Our new study shows #extinction risk was higher for larger, flat-footed, island species— and lower for those closely related to tropical African/Asian fauna, likely filtered by earlier human impacts 👣🍖
📄 doi.org/10.1111/geb....
#hominid #hunting #evolution
Our new study shows #extinction risk was higher for larger, flat-footed, island species— and lower for those closely related to tropical African/Asian fauna, likely filtered by earlier human impacts 👣🍖
📄 doi.org/10.1111/geb....
#hominid #hunting #evolution
July 30, 2025 at 4:56 AM
Forest #streams may discharge one tenth of the annual total global #forest carbon sink through dissolved organic carbon www.the-innovation.org/article/doi/... to have been involved in this important work on the global #carbon balance🌍
#carbonsink #carbonbudget #forestcarbon
#carbonsink #carbonbudget #forestcarbon
July 30, 2025 at 4:40 AM
Forest #streams may discharge one tenth of the annual total global #forest carbon sink through dissolved organic carbon www.the-innovation.org/article/doi/... to have been involved in this important work on the global #carbon balance🌍
#carbonsink #carbonbudget #forestcarbon
#carbonsink #carbonbudget #forestcarbon
18 years of satellite + field data show how #eutrophication, #climatechange & river regulation reshape #fish in Ukraine’s Dnipro #floodplain:
📉 Less specialization
📈 More divergence
🔗 doi.org/10.3390/fish...
#FunctionalEcology #FunctionalTraits #FreshwaterFish #EcologicalNovelty #Rivers
📉 Less specialization
📈 More divergence
🔗 doi.org/10.3390/fish...
#FunctionalEcology #FunctionalTraits #FreshwaterFish #EcologicalNovelty #Rivers
July 13, 2025 at 2:44 PM
18 years of satellite + field data show how #eutrophication, #climatechange & river regulation reshape #fish in Ukraine’s Dnipro #floodplain:
📉 Less specialization
📈 More divergence
🔗 doi.org/10.3390/fish...
#FunctionalEcology #FunctionalTraits #FreshwaterFish #EcologicalNovelty #Rivers
📉 Less specialization
📈 More divergence
🔗 doi.org/10.3390/fish...
#FunctionalEcology #FunctionalTraits #FreshwaterFish #EcologicalNovelty #Rivers
New in @pnas.org we assess future #climate exposure for 32,089 species of #trees🌳
🔹69% face unprecedented climates in ≥10% of range
🔹In taiga & Amazonia >50% of local tree diversity exposed
🔹 31% of species retain >90% of range in stable climates -> important climate refugia♨️
doi.org/10.1073/pnas...
🔹69% face unprecedented climates in ≥10% of range
🔹In taiga & Amazonia >50% of local tree diversity exposed
🔹 31% of species retain >90% of range in stable climates -> important climate refugia♨️
doi.org/10.1073/pnas...
June 24, 2025 at 9:57 AM
New in @pnas.org we assess future #climate exposure for 32,089 species of #trees🌳
🔹69% face unprecedented climates in ≥10% of range
🔹In taiga & Amazonia >50% of local tree diversity exposed
🔹 31% of species retain >90% of range in stable climates -> important climate refugia♨️
doi.org/10.1073/pnas...
🔹69% face unprecedented climates in ≥10% of range
🔹In taiga & Amazonia >50% of local tree diversity exposed
🔹 31% of species retain >90% of range in stable climates -> important climate refugia♨️
doi.org/10.1073/pnas...
Tracking bison in the southern Carpathians, I saw this beautiful #butterfly: scarce fritillary- which lives in sunny semi-open tree-rich landscapes (common on evolutionary time scales) & is extinct/highly endangered in NW Europe due to intensive agriculture and forestry 🦋☀️🌳🌼 #extinction #rewilding
June 22, 2025 at 1:46 PM
Tracking bison in the southern Carpathians, I saw this beautiful #butterfly: scarce fritillary- which lives in sunny semi-open tree-rich landscapes (common on evolutionary time scales) & is extinct/highly endangered in NW Europe due to intensive agriculture and forestry 🦋☀️🌳🌼 #extinction #rewilding
New #oak species described from China @nordicjbotany.bsky.social: nsojournals.onlinelibrary.wiley.com/doi/full/10.... #trees #flora #newspecies
June 1, 2025 at 11:29 AM
New #oak species described from China @nordicjbotany.bsky.social: nsojournals.onlinelibrary.wiley.com/doi/full/10.... #trees #flora #newspecies
Such a privilege when our "naturalistic" walking area by our terrace was spontaneously colonized by broad-leaved marsh #orchids (Dactylorhiza majalis; 🇩🇰Maj-Gøgeurt) a few ago - thriving & flowering today #flora #wildgarden
May 29, 2025 at 11:10 AM
Such a privilege when our "naturalistic" walking area by our terrace was spontaneously colonized by broad-leaved marsh #orchids (Dactylorhiza majalis; 🇩🇰Maj-Gøgeurt) a few ago - thriving & flowering today #flora #wildgarden
Wonderful new trophic #rewilding poster: naturbeskyttelse.dk/2025/05/22/n... #restoration #biodiversity #megafauna #natureart
May 24, 2025 at 8:26 PM
Wonderful new trophic #rewilding poster: naturbeskyttelse.dk/2025/05/22/n... #restoration #biodiversity #megafauna #natureart
Our semi-wild woodland #garden was looking wonderful this weekend 🌿☀️🪻🍃🌼🌳 #wildgarden #gardenrewilding #woodlandgarden
May 19, 2025 at 6:09 AM
Our semi-wild woodland #garden was looking wonderful this weekend 🌿☀️🪻🍃🌼🌳 #wildgarden #gardenrewilding #woodlandgarden
Had a wonderful time in Berkeley (where I was invited to give a seminar on #rewilding science) - great academic interactions & many wonderful "biotic" meetings 🌿 #biodiversity #plants #wildlife
May 11, 2025 at 8:33 PM
Had a wonderful time in Berkeley (where I was invited to give a seminar on #rewilding science) - great academic interactions & many wonderful "biotic" meetings 🌿 #biodiversity #plants #wildlife
Enjoying my visit to Berkeley to give an Integrative Biology department seminar on trophic rewilding - lots of good conversations on plants, evolution, paleoecology & mammals 🌿🐎🧬🦣
May 9, 2025 at 12:59 PM
Enjoying my visit to Berkeley to give an Integrative Biology department seminar on trophic rewilding - lots of good conversations on plants, evolution, paleoecology & mammals 🌿🐎🧬🦣
Foto fra 90ernes feltarbejde i Ecuadors Amazonskov 🍃
May 7, 2025 at 6:53 AM
Foto fra 90ernes feltarbejde i Ecuadors Amazonskov 🍃
Artiklen om #rewilding kom på forsiden 🐎
May 6, 2025 at 5:03 AM
Artiklen om #rewilding kom på forsiden 🐎
Excited to be at the Novel Ecosystems symposium at @trinitycollege.bsky.social in Dublin 🌿 #novelecosystems #Megaloceros #Cordyline
April 29, 2025 at 8:15 AM
Excited to be at the Novel Ecosystems symposium at @trinitycollege.bsky.social in Dublin 🌿 #novelecosystems #Megaloceros #Cordyline