Malte Jochum
@maltejochum.bsky.social
Community ecologist, father of two, outdoor enthusiast; Global Change, above-belowground, multitrophic interactions, energy flux; Professor for Above-belowground Interaction Ecology with @globalchangeeco.bsky.social @uniwuerzburg.bsky.social
At our @globalchangeeco.bsky.social retreat to Austria, we are both taking in the beautiful surrounding landscape and discussing the latest research advancements of the team members. Here, Rasmus Dam Jensen presents our #MultiCrossBEF project as part of @bexplo.bsky.social
@uni-wuerzburg.de
@uni-wuerzburg.de
November 11, 2025 at 8:35 AM
At our @globalchangeeco.bsky.social retreat to Austria, we are both taking in the beautiful surrounding landscape and discussing the latest research advancements of the team members. Here, Rasmus Dam Jensen presents our #MultiCrossBEF project as part of @bexplo.bsky.social
@uni-wuerzburg.de
@uni-wuerzburg.de
Reposted by Malte Jochum
Retreat time! In the great setting of the Austrian Alps we just started our group retreat to discuss science, new ideas & how to further develop our @globalchangeeco.bsky.social ecosystem. Here @christianzehner.bsky.social is kicking off the program with his project on occurrence sampling biases.
November 10, 2025 at 8:28 AM
Retreat time! In the great setting of the Austrian Alps we just started our group retreat to discuss science, new ideas & how to further develop our @globalchangeeco.bsky.social ecosystem. Here @christianzehner.bsky.social is kicking off the program with his project on occurrence sampling biases.
Reposted by Malte Jochum
GCERetreat2025: Our MSc student Lars Landgraf presents his ideas and first analyses for his thesis project on how landscape heterogeneity influences distribution and trends of biodiversity in Bavaria
November 10, 2025 at 9:46 AM
GCERetreat2025: Our MSc student Lars Landgraf presents his ideas and first analyses for his thesis project on how landscape heterogeneity influences distribution and trends of biodiversity in Bavaria
Reposted by Malte Jochum
Earthworm invasion reduces above-belowground biodiversity and ecosystem multifunctionality https://www.biorxiv.org/content/10.1101/2025.11.05.686452v1
November 7, 2025 at 9:31 PM
Earthworm invasion reduces above-belowground biodiversity and ecosystem multifunctionality https://www.biorxiv.org/content/10.1101/2025.11.05.686452v1
Reposted by Malte Jochum
Earthworm invasion reduces above-belowground biodiversity and ecosystem multifunctionality https://www.biorxiv.org/content/10.1101/2025.11.05.686452v1
November 7, 2025 at 9:31 PM
Earthworm invasion reduces above-belowground biodiversity and ecosystem multifunctionality https://www.biorxiv.org/content/10.1101/2025.11.05.686452v1
Check out our brand-new preprint on how #earthworm 🪱 #invasion alters forest #multidiversity and #multifunctionality. Very rewarding collaboration with Olga Ferlian @eisenhauerlab.bsky.social @idiv-research.bsky.social.
www.biorxiv.org/content/10.1...
@globalchangeeco.bsky.social @uni-wuerzburg.de
www.biorxiv.org/content/10.1...
@globalchangeeco.bsky.social @uni-wuerzburg.de
Earthworm invasion reduces above-belowground biodiversity and ecosystem multifunctionality
Global change alters abiotic and biotic conditions across the globe with unprecedented consequences for the functional integrity of affected ecosystems. However, most studies addressing global-change ...
www.biorxiv.org
November 8, 2025 at 7:39 AM
Check out our brand-new preprint on how #earthworm 🪱 #invasion alters forest #multidiversity and #multifunctionality. Very rewarding collaboration with Olga Ferlian @eisenhauerlab.bsky.social @idiv-research.bsky.social.
www.biorxiv.org/content/10.1...
@globalchangeeco.bsky.social @uni-wuerzburg.de
www.biorxiv.org/content/10.1...
@globalchangeeco.bsky.social @uni-wuerzburg.de
Reposted by Malte Jochum
We’re excited to announce the next confirmed keynote speaker:
Tim Newbold (@tnewbold31.bsky.social, @ucl.ac.uk )
He researches global biodiversity patterns and the effects of climate and land-use change on ecosystems.🌍🐝
Stay tuned for more #BE20conference Keynote Speakers.
#bexplo #conservation
Tim Newbold (@tnewbold31.bsky.social, @ucl.ac.uk )
He researches global biodiversity patterns and the effects of climate and land-use change on ecosystems.🌍🐝
Stay tuned for more #BE20conference Keynote Speakers.
#bexplo #conservation
November 6, 2025 at 10:30 AM
We’re excited to announce the next confirmed keynote speaker:
Tim Newbold (@tnewbold31.bsky.social, @ucl.ac.uk )
He researches global biodiversity patterns and the effects of climate and land-use change on ecosystems.🌍🐝
Stay tuned for more #BE20conference Keynote Speakers.
#bexplo #conservation
Tim Newbold (@tnewbold31.bsky.social, @ucl.ac.uk )
He researches global biodiversity patterns and the effects of climate and land-use change on ecosystems.🌍🐝
Stay tuned for more #BE20conference Keynote Speakers.
#bexplo #conservation
Reposted by Malte Jochum
Deer browsing limits forest diversity – even in the light. New study in @jappliedecology.bsky.social by Würzburg ecologists and others: Even sunny canopy gaps cannot offset the impact of roe deer on forest regeneration. 🦌🌳☀️
➡️ www.uni-wuerzburg.de/en/news-and-...
➡️ www.uni-wuerzburg.de/en/news-and-...
November 6, 2025 at 10:58 AM
Deer browsing limits forest diversity – even in the light. New study in @jappliedecology.bsky.social by Würzburg ecologists and others: Even sunny canopy gaps cannot offset the impact of roe deer on forest regeneration. 🦌🌳☀️
➡️ www.uni-wuerzburg.de/en/news-and-...
➡️ www.uni-wuerzburg.de/en/news-and-...
Reposted by Malte Jochum
#BE20Conference first confirmed keynotes!
Prof. Dr. Elisabeth Borer (USA)
Borer will share insights on ecological diversity & sustainable landscapes 🌱
Over the next weeks, we’ll introduce BE20 keynote speakers.
📅 June 8–12, 2025, Berlin — celebrating 20 years of Biodiversity Exploratories
#bexplo
Prof. Dr. Elisabeth Borer (USA)
Borer will share insights on ecological diversity & sustainable landscapes 🌱
Over the next weeks, we’ll introduce BE20 keynote speakers.
📅 June 8–12, 2025, Berlin — celebrating 20 years of Biodiversity Exploratories
#bexplo
November 4, 2025 at 4:12 PM
#BE20Conference first confirmed keynotes!
Prof. Dr. Elisabeth Borer (USA)
Borer will share insights on ecological diversity & sustainable landscapes 🌱
Over the next weeks, we’ll introduce BE20 keynote speakers.
📅 June 8–12, 2025, Berlin — celebrating 20 years of Biodiversity Exploratories
#bexplo
Prof. Dr. Elisabeth Borer (USA)
Borer will share insights on ecological diversity & sustainable landscapes 🌱
Over the next weeks, we’ll introduce BE20 keynote speakers.
📅 June 8–12, 2025, Berlin — celebrating 20 years of Biodiversity Exploratories
#bexplo
Reposted by Malte Jochum
🕷️🪨Predator density outweighs experimental warming effects on short-term carbon and nitrogen loss from arctic shrub litter
📷 © Amanda Koltz
vist.ly/4cb82
#ClimateChange #Decomposition #NutrientCycling #ShrubExpansion #TrophicCascade #WolfSpiders
📷 © Amanda Koltz
vist.ly/4cb82
#ClimateChange #Decomposition #NutrientCycling #ShrubExpansion #TrophicCascade #WolfSpiders
October 30, 2025 at 6:06 PM
🕷️🪨Predator density outweighs experimental warming effects on short-term carbon and nitrogen loss from arctic shrub litter
📷 © Amanda Koltz
vist.ly/4cb82
#ClimateChange #Decomposition #NutrientCycling #ShrubExpansion #TrophicCascade #WolfSpiders
📷 © Amanda Koltz
vist.ly/4cb82
#ClimateChange #Decomposition #NutrientCycling #ShrubExpansion #TrophicCascade #WolfSpiders
Reposted by Malte Jochum
🌿🌱 We’re hiring a tenure-track Assistant Professor (potentially open rank) at the Institute of Plant Sciences
@unibe.ch in Plant Population Ecology 🌻🌳
Be our colleague and join us in beautiful Bern, Switzerland
Apply by Jan 23 2026 👉 ohws.prospective.ch/public/v1/jo...
@unibe.ch in Plant Population Ecology 🌻🌳
Be our colleague and join us in beautiful Bern, Switzerland
Apply by Jan 23 2026 👉 ohws.prospective.ch/public/v1/jo...
October 30, 2025 at 3:55 PM
🌿🌱 We’re hiring a tenure-track Assistant Professor (potentially open rank) at the Institute of Plant Sciences
@unibe.ch in Plant Population Ecology 🌻🌳
Be our colleague and join us in beautiful Bern, Switzerland
Apply by Jan 23 2026 👉 ohws.prospective.ch/public/v1/jo...
@unibe.ch in Plant Population Ecology 🌻🌳
Be our colleague and join us in beautiful Bern, Switzerland
Apply by Jan 23 2026 👉 ohws.prospective.ch/public/v1/jo...
Reposted by Malte Jochum
Check out our new insect decline paper. By analysing 36 yrs of German ground beetle distribution data, we show:
- ~80% of species have declined, with significant declines for >50%.
- The decline was similar across species traits and threatened status.
doi.org/10.1111/ddi.... @consbiog.bsky.social
- ~80% of species have declined, with significant declines for >50%.
- The decline was similar across species traits and threatened status.
doi.org/10.1111/ddi.... @consbiog.bsky.social
November 3, 2025 at 1:38 AM
Check out our new insect decline paper. By analysing 36 yrs of German ground beetle distribution data, we show:
- ~80% of species have declined, with significant declines for >50%.
- The decline was similar across species traits and threatened status.
doi.org/10.1111/ddi.... @consbiog.bsky.social
- ~80% of species have declined, with significant declines for >50%.
- The decline was similar across species traits and threatened status.
doi.org/10.1111/ddi.... @consbiog.bsky.social
Reposted by Malte Jochum
Damn - this is really good. Modeling plant communities with Dirichlet regression. I use beta and ordered beta (thanks, @rmkubinec.bsky.social!) a lot, but this is very cool. Something I'd normally use gllvm for, but maybe... ecogambler.netlify.app/blog/plant-c...
Compositional modeling of plant communities with Dirichlet regression | GAMbler
Compositional data appears everywhere in scientific research, yet many analysts fall back on problematic approaches that ignore fundamental mathematical constraints. I demonstrate how Dirichlet regres...
ecogambler.netlify.app
October 31, 2025 at 8:18 PM
Damn - this is really good. Modeling plant communities with Dirichlet regression. I use beta and ordered beta (thanks, @rmkubinec.bsky.social!) a lot, but this is very cool. Something I'd normally use gllvm for, but maybe... ecogambler.netlify.app/blog/plant-c...
Check this out: the global biomass of mammals since 1850
just out in @natcomms.nature.com
www.nature.com/articles/s41...
🌐
just out in @natcomms.nature.com
www.nature.com/articles/s41...
🌐
The global biomass of mammals since 1850 - Nature Communications
Here, the authors estimate mammalian biomass from the 1850’s to today, tracking an increase of over five-fold in human and domesticated mammal biomass and a two-fold decrease in wild mammal biomass. R...
www.nature.com
October 28, 2025 at 10:49 AM
Check this out: the global biomass of mammals since 1850
just out in @natcomms.nature.com
www.nature.com/articles/s41...
🌐
just out in @natcomms.nature.com
www.nature.com/articles/s41...
🌐
Looking for a PhD / researcher position on #arthropods in #urban green spaces? Our colleague @nadja-simons.bsky.social @cofeuniwue.bsky.social @uni-wuerzburg.de has a 3 year position advertised here:
www.uni-wuerzburg.de/karriere/sin...
www.uni-wuerzburg.de/karriere/sin...
Researcher Position at the Chair of Conservation Biology and Forest Exology
Universität Würzburg Sanderring 2 97070 Würzburg
www.uni-wuerzburg.de
October 28, 2025 at 8:07 AM
Looking for a PhD / researcher position on #arthropods in #urban green spaces? Our colleague @nadja-simons.bsky.social @cofeuniwue.bsky.social @uni-wuerzburg.de has a 3 year position advertised here:
www.uni-wuerzburg.de/karriere/sin...
www.uni-wuerzburg.de/karriere/sin...
Reposted by Malte Jochum
To minimise risk of infection, carpenter #ants resort to drastic measures: they amputate injured legs immediately. “Better safe than sorry” – the pragmatic approach proved effective, with survival rates of injured workers more than doubling. Study by @etf1989.bsky.social in @royalsociety.org
October 22, 2025 at 9:30 AM
To minimise risk of infection, carpenter #ants resort to drastic measures: they amputate injured legs immediately. “Better safe than sorry” – the pragmatic approach proved effective, with survival rates of injured workers more than doubling. Study by @etf1989.bsky.social in @royalsociety.org
Reposted by Malte Jochum
Amazing PhD opportunity at the University of Stirling! Don't miss this chance. Amazing supervisors (Arthur Broadbent and @jasubke.bsky.social ) and a strong collaboration team including Lindsay Newbold, @annekempel.bsky.social and myself :)
iapetus.ac.uk/studentships...
iapetus.ac.uk/studentships...
October 22, 2025 at 5:32 AM
Amazing PhD opportunity at the University of Stirling! Don't miss this chance. Amazing supervisors (Arthur Broadbent and @jasubke.bsky.social ) and a strong collaboration team including Lindsay Newbold, @annekempel.bsky.social and myself :)
iapetus.ac.uk/studentships...
iapetus.ac.uk/studentships...
Reposted by Malte Jochum
...offener Brief an die europäischen Staats- und Regierungschefs von mehr als 2000 europäischen Wissenschaftler:innen, darunter knapp 50 aus Deutschland:
»Die politische Diskussion bewegt sich von den wissenschaftlichen Erkenntnissen weg«
»Die politische Diskussion bewegt sich von den wissenschaftlichen Erkenntnissen weg«
October 21, 2025 at 4:49 PM
...offener Brief an die europäischen Staats- und Regierungschefs von mehr als 2000 europäischen Wissenschaftler:innen, darunter knapp 50 aus Deutschland:
»Die politische Diskussion bewegt sich von den wissenschaftlichen Erkenntnissen weg«
»Die politische Diskussion bewegt sich von den wissenschaftlichen Erkenntnissen weg«
Reposted by Malte Jochum
Open Letter by scientists to the Council:
"Climate Neutrality Is Europe’s Greatest Economic Opportunity”.
Ahead of the European Council meeting on 23.10.2025,
2,178 scientists urge EU Heads of States & Governments to take ambitious decisions for the 2040 targets.
zenodo.org/records/1739...
"Climate Neutrality Is Europe’s Greatest Economic Opportunity”.
Ahead of the European Council meeting on 23.10.2025,
2,178 scientists urge EU Heads of States & Governments to take ambitious decisions for the 2040 targets.
zenodo.org/records/1739...
October 20, 2025 at 4:23 PM
Open Letter by scientists to the Council:
"Climate Neutrality Is Europe’s Greatest Economic Opportunity”.
Ahead of the European Council meeting on 23.10.2025,
2,178 scientists urge EU Heads of States & Governments to take ambitious decisions for the 2040 targets.
zenodo.org/records/1739...
"Climate Neutrality Is Europe’s Greatest Economic Opportunity”.
Ahead of the European Council meeting on 23.10.2025,
2,178 scientists urge EU Heads of States & Governments to take ambitious decisions for the 2040 targets.
zenodo.org/records/1739...
Reposted by Malte Jochum
🔔 Reminder: #BE20Conference 2026 🔔
Here’s the latest news!
📅 Registration and Call for Abstracts open this November – mark your calendars!
✨Some keynote speakers are already confirmed – check them out on our website: www.biodiversity-exploratories.de/en/be20/
📢 Please help spread the news!
Here’s the latest news!
📅 Registration and Call for Abstracts open this November – mark your calendars!
✨Some keynote speakers are already confirmed – check them out on our website: www.biodiversity-exploratories.de/en/be20/
📢 Please help spread the news!
📢Save the Date!👩🔬
Join us in Berlin, June 8–12, 2026 for the #BE20 Conference:
“Emerging Topics in Long-Term and Large-Scale Biodiversity Research” 🦋🌱🌳
📍 Langenbeck-Virchow-Haus, Berlin
🎉 Celebrating 20 years of the #Biodiversity Exploratories!
Please RT and share this news!
#Research #Conference
Join us in Berlin, June 8–12, 2026 for the #BE20 Conference:
“Emerging Topics in Long-Term and Large-Scale Biodiversity Research” 🦋🌱🌳
📍 Langenbeck-Virchow-Haus, Berlin
🎉 Celebrating 20 years of the #Biodiversity Exploratories!
Please RT and share this news!
#Research #Conference
October 20, 2025 at 11:18 AM
🔔 Reminder: #BE20Conference 2026 🔔
Here’s the latest news!
📅 Registration and Call for Abstracts open this November – mark your calendars!
✨Some keynote speakers are already confirmed – check them out on our website: www.biodiversity-exploratories.de/en/be20/
📢 Please help spread the news!
Here’s the latest news!
📅 Registration and Call for Abstracts open this November – mark your calendars!
✨Some keynote speakers are already confirmed – check them out on our website: www.biodiversity-exploratories.de/en/be20/
📢 Please help spread the news!
Reposted by Malte Jochum
New paper from our JenaTron facility:
Bröcher et al. show that reciprocal effects between plants and invertebrate herbivores vary with plant species richness, plant history and soil history.
Herbivores want nutritious plants with soil history, while they reduce plant height in monocultures
🐛🌱
Bröcher et al. show that reciprocal effects between plants and invertebrate herbivores vary with plant species richness, plant history and soil history.
Herbivores want nutritious plants with soil history, while they reduce plant height in monocultures
🐛🌱
📰Published📰Plant-insect interactions are shaped by plant diversity and the history of plants and soil🌱
buff.ly/QZsolZQ
🧪🌍
buff.ly/QZsolZQ
🧪🌍
Plant-insect interactions are shaped by plant diversity and the history of plants and soil.
Maximilian Bröcher, Anne Ebeling, Leonardo Bassi, Pamela Medina-van Berkum, Nicole M. van Dam, Nico Eisenhauer, Anna-Maria Madaj, Sybille Unsicker, Alexandra Weigelt, Sebastian T. Meyer This is a p…
buff.ly
October 16, 2025 at 8:30 AM
New paper from our JenaTron facility:
Bröcher et al. show that reciprocal effects between plants and invertebrate herbivores vary with plant species richness, plant history and soil history.
Herbivores want nutritious plants with soil history, while they reduce plant height in monocultures
🐛🌱
Bröcher et al. show that reciprocal effects between plants and invertebrate herbivores vary with plant species richness, plant history and soil history.
Herbivores want nutritious plants with soil history, while they reduce plant height in monocultures
🐛🌱
🌐
BugNet currently includes 36 experimental sites in 18 countries 🌍.
Huge thanks to all collaborators for their enthusiasm and teamwork!!
We’re also looking for new collaborators to join this global effort to understand how invertebrate herbivores and fungal pathogens shape ecosystems.
🌐 bug-net.org
Huge thanks to all collaborators for their enthusiasm and teamwork!!
We’re also looking for new collaborators to join this global effort to understand how invertebrate herbivores and fungal pathogens shape ecosystems.
🌐 bug-net.org
October 10, 2025 at 10:28 AM
🌐
Reposted by Malte Jochum
Our first paper from the Bug-Network (BugNet) is out! 🎉
BugNet is a global network studying how invertebrate herbivores and fungal pathogens shape plant diversity & ecosystem functioning worldwide. The paper reports on the methods of the experimental part:
📄 onlinelibrary.wiley.com/doi/10.1002/...
BugNet is a global network studying how invertebrate herbivores and fungal pathogens shape plant diversity & ecosystem functioning worldwide. The paper reports on the methods of the experimental part:
📄 onlinelibrary.wiley.com/doi/10.1002/...
The Bug‐Network (BugNet): A Global Experimental Network Testing the Effects of Invertebrate Herbivores and Fungal Pathogens on Plant Communities and Ecosystem Function in Open Ecosystems
The Bug-Network (BugNet) is a novel global collaborative research network that implements standardized consumer-reduction experiments in herbaceous- or shrub-dominated ecosystems to assess the impact...
onlinelibrary.wiley.com
October 10, 2025 at 8:20 AM
Our first paper from the Bug-Network (BugNet) is out! 🎉
BugNet is a global network studying how invertebrate herbivores and fungal pathogens shape plant diversity & ecosystem functioning worldwide. The paper reports on the methods of the experimental part:
📄 onlinelibrary.wiley.com/doi/10.1002/...
BugNet is a global network studying how invertebrate herbivores and fungal pathogens shape plant diversity & ecosystem functioning worldwide. The paper reports on the methods of the experimental part:
📄 onlinelibrary.wiley.com/doi/10.1002/...
Reposted by Malte Jochum
📢Check out our latest BE-publication on #invertebrate 🐞abundance in #grasslands 🌱 published in @basicapplecol.bsky.social.
Reducing land use (single late #mowing) increased #insects by +41% after 1 yr and +99% after 3 yrs.
Species diversity, however, remained unchanged.
🔗 doi.org/10.1016/j.ba...
Reducing land use (single late #mowing) increased #insects by +41% after 1 yr and +99% after 3 yrs.
Species diversity, however, remained unchanged.
🔗 doi.org/10.1016/j.ba...
September 30, 2025 at 8:29 AM
📢Check out our latest BE-publication on #invertebrate 🐞abundance in #grasslands 🌱 published in @basicapplecol.bsky.social.
Reducing land use (single late #mowing) increased #insects by +41% after 1 yr and +99% after 3 yrs.
Species diversity, however, remained unchanged.
🔗 doi.org/10.1016/j.ba...
Reducing land use (single late #mowing) increased #insects by +41% after 1 yr and +99% after 3 yrs.
Species diversity, however, remained unchanged.
🔗 doi.org/10.1016/j.ba...
Reposted by Malte Jochum
🎉 Great team success! New publication just came out — the result of inspiring group discussions led by @teja-tscharntke.bsky.social It's fantastic to have such a collaborative spirit in the lab!
Biodiversity conservation needs mix of measures and collaboration
www.sciencedirect.com/science/arti...
Biodiversity conservation needs mix of measures and collaboration
www.sciencedirect.com/science/arti...
September 28, 2025 at 7:01 AM
🎉 Great team success! New publication just came out — the result of inspiring group discussions led by @teja-tscharntke.bsky.social It's fantastic to have such a collaborative spirit in the lab!
Biodiversity conservation needs mix of measures and collaboration
www.sciencedirect.com/science/arti...
Biodiversity conservation needs mix of measures and collaboration
www.sciencedirect.com/science/arti...