Christian Hof

@christianhof.bsky.social

1.7K followers 200 following 24 posts

Ecologist, biogeographer, professor, ornithologist, father, choir singer, political animal. Head of the Global Change Ecology group at University of Würzburg, Germany.

Videos

Environmental science 70%

Geography 18%

Posts Replies Media Videos

Reposted by Christian Hof

Maira Cardoso @mairacardoso.bsky.social · 7d

Huge thanks to all co authors: @anamaria-bu.bsky.social , Kevin Frac, @christianhof.bsky.social , @biogeokreft.bsky.social , @jalbrecht.bsky.social , Katrin Böhning-Gaese and Susanne Fritz

Reposted by Christian Hof

Maira Cardoso @mairacardoso.bsky.social · 7d

Are you into island birds?

In this study we examine how human impacts and island features explain the prevalence of threatened bird species across islands globally.
Read more: doi.org/10.1111/geb....

Urbanisation Is Related to the Prevalence of Threatened Species on Islands Across the Globe

Aim To assess how environmental characteristics and human impacts contribute to the global prevalence of threatened bird species on islands (the ratio of threatened to non-threatened species per isl...

doi.org

Reposted by Christian Hof, Benjamin Wildermuth

Jean-Philippe Lessard @bugecology.bsky.social · 11d

Our research group has an open PhD position! Please share widely!

Possible topics include:

Determinants of range limits

Assembly of ecological networks (eg,
plant-pollinator)

The role of soil arthropods (eg, ants) in carbon storage

Details:
docs.google.com/document/d/1...

PhD position opening in community and biogeography

PhD Position in Community Ecology & Biogeography, Montreal, Canada Our research group at Concordia University investigates the forces enabling the maintenance, and governing the distribution, of biol...

docs.google.com

Reposted by Christian Hof

Esme Ashe-Jepson @esme-ashe.bsky.social · 20d

Cool critter of the day! 🧐 These are the same moth species, one male one female! There are quite a few amazing moth species active around this time of year where the females don’t bother growing wings (why waste the energy?) and look like completely different insects!! 🤩

A photo of a female winter moth (Operophtera brumata) on a finger.

A photo of a male winter moth (Operophtera brumata) in a pot.

Reposted by Christian Hof

Global Change Ecology group @uniwuerzburg.bsky.social @globalchangeeco.bsky.social · 26d

Before it ended, at our GCERetreat2025 our amazing IT-data-programming wizard Steven Hill gave a great overview on the important topics of data and code management.

Reposted by Christian Hof

Global Change Ecology group @uniwuerzburg.bsky.social @globalchangeeco.bsky.social · 26d

A fantastic GCERetreat2025 came to end. Amazing talks from all our global change ecology research themes (thermal, macro- & above-belowground interaction ecology) productive exchange about joint research and teaching, group development, career options and many other topics. To be repeated soon!

Reposted by Christian Hof

Global Change Ecology group @uniwuerzburg.bsky.social @globalchangeeco.bsky.social · 26d

GCERetreat2025: Amazing insights into his new research on thermorgulatory behaviour of #dragonflies and on how to model this from a biophysical perspective were presented by our postdoc Roberto Novella Fernandez

Reposted by Christian Hof, Malte Jochum

Global Change Ecology group @uniwuerzburg.bsky.social @globalchangeeco.bsky.social · 26d

Hendrik Mohr, also PhD student with @maltejochum.bsky.social, gave us at the GCERetreat2025 some insights into his impressive review work on the multiple global change impacts on above-belowground interactions

Reposted by Christian Hof, Malte Jochum

Global Change Ecology group @uniwuerzburg.bsky.social @globalchangeeco.bsky.social · 26d

During our GCERetreat2025 Ayushi, PhD student in @maltejochum.bsky.social‘s Above-belowground interaction ecology group presented an update about her PhD work on energy fluxes in ecological communities.

Reposted by Christian Hof

Global Change Ecology group @uniwuerzburg.bsky.social @globalchangeeco.bsky.social · 27d

Last program day of our GCERetreat2025 has started. Our MSc student @kc-gehrig.bsky.social shows cool (or hot?) results from his thesis project on behavioural responses of butterflies to temperature variation. Great work, highlighting the importance of behaviour in climate change impact studies

Reposted by Christian Hof

Julius-Maximilians-Universität Würzburg @uni-wuerzburg.de · 27d

We are delighted to announce our #HighlyCited2025 researchers: Ronny Thomale, @angelifriedmann.bsky.social , Georg Gasteiger, @dominicgrun.bsky.social, and Christoph Wanner. Congratulations!
➡️ www.uni-wuerzburg.de/en/news-and-...

Highly cited Würzburg researchers (clockwise): Ronny Thomale, José Pedro Friedmann Angeli, Georg Gasteiger, Dominic Grün, and Christoph Wanner. (Image: Tobias Ritz / José Pedro Friedmann Angeli / Katja Krause / Marcus Rockoff / Daniel Peter)

Reposted by Cornelius Senf, Christian Hof, Malte Jochum , and 3 more Cornelius Senf, Christian Hof, Malte Jochum, Maximilian Hanusch, Billur Bektaş, Benjamin Wildermuth

Maximilian Pichler @maximilianpichler.bsky.social · 28d

#PhD position!

I’m looking for a PhD Student (1+3 years) to model insect populations using statistical models + deep learning at #TheoreticalEcology, Regensburg (Germany).

Join our team - please RT!

Details: karriere.uni-regensburg.de/tg7w9

#Insects #Ecology #DeepLearning #Ecology #Monitoring

Reposted by Christian Hof, Esme Ashe‐Jepson

Global Change Ecology group @uniwuerzburg.bsky.social @globalchangeeco.bsky.social · 28d

Yesterday at our GCERetreat2025 our postdoc @esme-ashe.bsky.social presented her impressive data collection as well as first models and findings on butterfly thermoregulation and thermal tolerance. Many more cool results coming up!

Reposted by Christian Hof, Esme Ashe‐Jepson

Global Change Ecology group @uniwuerzburg.bsky.social @globalchangeeco.bsky.social · 28d

GCERetreat2025: Our MSc student Katrin Fuest presented ideas and first fieldwork reports from her thesis. She studies thermoregulation of forest #butterflies in relation to habitat structure and microclimate. Well done Katrin!

Reposted by Christian Hof, Esme Ashe‐Jepson

Malte Jochum @maltejochum.bsky.social · 28d

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

The Global Change Ecology crowd listening to Rasmus Jensen introducing his PhD research.

A field path and some trees in the foreground with a mountain range in the background

Reposted by Christian Hof

Global Change Ecology group @uniwuerzburg.bsky.social @globalchangeeco.bsky.social · 28d

A wonderful morning in the Austrian Alps, our next GCERetreat2025 day has started, and Rasmus Dam Jensen gives an overview of the MultiCrossBEF project @bexplo.bsky.social and some first results on the Earthworm subproject

Reposted by Christian Hof

Global Change Ecology group @uniwuerzburg.bsky.social @globalchangeeco.bsky.social · 28d

GCERetreat2025: Congrats to our @ekengelhardt.bsky.social on her new project bAImo (Bavarian AI for insect monitoring), funded by bayklif2.0. Cool research at the interface of modelling, macroecology & conservation science coming up! With @maximilianpichler.bsky.social & @cofeuniwue.bsky.social

Reposted by Christian Hof, Malte Jochum

Global Change Ecology group @uniwuerzburg.bsky.social @globalchangeeco.bsky.social · 29d

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 Christian Hof, Malte Jochum

Global Change Ecology group @uniwuerzburg.bsky.social @globalchangeeco.bsky.social · 29d

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 Christian Hof

Global Change Ecology group @uniwuerzburg.bsky.social @globalchangeeco.bsky.social · Nov 8

Another MSc thesis update was recently presented by our student Nicolas Willems. He studies the variation of colour lightness, body size and other traits of #grasshoppers along an elevational gradient in the Bavarian Alps. Well done!! We look forward to the results…

Christian Hof @christianhof.bsky.social · Nov 7

Unfortunately not…

Christian Hof @christianhof.bsky.social · Nov 6

Herzliche Einladung zu einem Vortrag, den ich demnächst im heimatlichen Westerwald halten darf!

Reposted by Christian Hof, Benjamin Wildermuth

Malte Jochum @maltejochum.bsky.social · Oct 28

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...

Researcher Position at the Chair of Conservation Biology and Forest Exology

Universität Würzburg Sanderring 2 97070 Würzburg

www.uni-wuerzburg.de

Reposted by Christian Hof

Global Change Ecology group @uniwuerzburg.bsky.social @globalchangeeco.bsky.social · Oct 28

Another impressive thesis update talk by our MSc student Mara Kuschke: advised by @esme-ashe.bsky.social she studies how #thermoregulation of #grasshoppers varies with elevation in the Bavarian Alps. Great work, Mara!

Reposted by Christian Hof

Global Change Ecology group @uniwuerzburg.bsky.social @globalchangeeco.bsky.social · Oct 27

Last week our MSc student Karl Gehrig gave an update about his MSc thesis on how #butterflies change their #behaviour depending on their thermal preferences preferences. His work is supervised by @esme-ashe.bsky.social who leads our research theme of #thermalecology. Well done, Karl!

Guy Pe'er @guypeer.bsky.social · Oct 20

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...

Reposted by Christian Hof

Global Change Ecology group @uniwuerzburg.bsky.social @globalchangeeco.bsky.social · Oct 16

We are happy and proud to host Mariana Prokupuk from the Ukrainian National Academy of Science as a guest researcher at our chair. With a Coimbra scholarship she studies ecological niches and traits of invasive aquatic plants. Welcome again, Mariana! www.biozentrum.uni-wuerzburg.de/en/gce/news/...

Reposted by Peter Thorne, Du Toit, Anthony Burke , and 1 more Peter Thorne, Du Toit, Anthony Burke, Christian Hof

Prof Friederike Otto @frediotto.bsky.social · Oct 16

The Paris Agreement offers a powerful framework for a fairer, healthier world. But as extreme heat shows, every tenth of a degree matters. We need higher ambition to stop violating the rights of ever more people. - new @wwattribution.bsky.social study
www.worldweatherattribution.org/ten-years-of...

frequency of extreme heat in Mali & Burkina Faso under different warming scenarios

Reposted by Christian Hof

Helmut Hillebrand @hillebr1.bsky.social · Oct 9

Neben Klimawandel, Artensterben & Krieg waren die vielen armen Menschen, die jeden Tag heulend im Supermarkt zusammenbrechen weil sie den Veggieburger nicht von ihrem Fleischburger unterscheiden konnten, sicherlich eines der größten Probleme der Menschheit. Gut dass wir wenigstens das gelöst haben.

taz @taz.de · Oct 9

Das EU-Gesetz ist kein Sieg für Verbraucherschutz oder die deutsche Sprache. Die Fleischindustrie hat sich einfach gegen die Konkurrenz durchgesetzt.

Veggiefleisch muss umbenannt werden: Es geht nicht um die Wurst – sondern um Profite

Das EU-Gesetz ist kein Sieg für Verbraucherschutz oder die deutsche Sprache. Die Fleischindustrie hat sich einfach gegen die Konkurrenz durchgesetzt.

taz.de

Reposted by Christian Hof

Global Change Ecology group @uniwuerzburg.bsky.social @globalchangeeco.bsky.social · Sep 23

Thanks for a great talk on her PhD project by @anamaria-bu.bsky.social in our @globalchangeeco.bsky.social seminar. Check out her recent paper on the influence of island isolation on dispersal traits of bird communities on #islands globally: onlinelibrary.wiley.com/doi/full/10....

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