🦋 New general results section on the CBMS website!

📊📉 Explore how butterflies are changing in Catalonia: local and regional trends, cumulative changes in abundance, and multi-species indicators...

🌐👉 www.catalanbms.org/ca/resultats...

🦋 Nova secció de resultats generals al web del CBMS!

📊 📉 Hi pots explorar les tendències de les papallones a diferents escales (local i regional), els canvis acumulats d’abundància al llarg del temps i diversos indicadors multiespecífics...

🌐👉 www.catalanbms.org/ca/resultats...

Boxplots showing the effects of the grazing legacy regime on butterfly abundance (a), butterfly richness (c) and plant richness (e), with and without the weighted IUCN data transformation. The regimes are ordered from left to right, showing a decrease in the effects of herbivores in the long-term. EN (Encroached) – dominated by shrub communities resulting from long-term grazing abandonment; MO (Mosaic) – a mix of grassland and scattered shrubs reflecting short-term grazing abandonment; PR (Grazed grassland) – grasslands with no shrub structures, indicative of actively grazed systems; and OG (Overgrazed) – intensively grazed grasslands.

Apollo (Parnassius apollo). Author: José Manuel Sesma Moranas. July 12, 2009 – Sabiñánigo.

🏔️🐄 Long-term grazing shapes butterfly diversity in the Pyrenees

⚖️ Butterfly diversity peaks under moderate grazing
📉 Overgrazing or grassland abandonment → butterfly decline
🌿🦋 More plants → more butterflies (particularly specialists)

📄 Check out the paper: l1nq.com/uhj9m4t

Boxplots que mostren els efectes del règim de pastura a llarg termini sobre l’abundància de papallones (a), la riquesa de papallones (c) i la riquesa de plantes (e), amb i sense la transformació ponderada segons dades de la IUCN. Els règims s’ordenen d’esquerra a dreta mostrant una disminució dels efectes dels herbívors a llarg termini. EN (Encroached) – dominat per comunitats arbustives resultat de l’abandonament de la pastura a llarg termini; MO (Mosaic) – combinació de prat i arbusts dispersos que reflecteix un abandonament recent de la pastura; PR (Grazed grassland) – prats sense estructura arbustiva, indicatius de sistemes activament pasturats; i OG (Overgrazed) – prats sotmesos a una pastura intensiva.

Apol·lo (Parnassius apollo). Autor: José Manuel Sesma Moranas. 12 de juliol de 2009 - Sabiñánigo.

🏔️🐄 La pastura a llarg termini determina la diversitat de papallones als Pirineus

⚖️ La diversitat és màxima amb una gestió moderada
📉 Sobreepastura o abandonament → menys papallones
🌿🦋 Més plantes → més papallones

🔗 Notícia (cat): sl1nk.com/h3ezhle
📄 Article (eng): l1nq.com/uhj9m4t

A fitting tribute to a great man. He did so much to help us understand and conserve butterflies. He leaves us with some crucial knowledge to face the future

Towards a global butterfly index! 🦋🌍

Despite data gaps in many regions, butterflies are among the best candidates to build a global indicator for insects

Long-term monitoring —like CBMS— is key

👉📄 Check out the scientific article: conbio.onlinelibrary.wiley.com/doi/10.1111/...

Cap a un índex global de papallones! 🦋🌍

Tot i els buits de dades a moltes regions, les papallones són un dels millors candidats per construir un indicador global pels insectes

El seguiment a llarg termini —com el CBMS— és clau

🔗 Notícia (cat): l1nq.com/A1UsG
📄 Article (eng): l1nq.com/ylK12

New study on arthropod declines @natecoevo.nature.com 🪲

In two time series @jena-experiment.bsky.social & @bexplo.bsky.social we show how community (dis)assembly underpins local biomass declines.

It mostly boils down to species loss, with identity losing relevance.

www.nature.com/articles/s41...

Mediterranean skipper (Gegenes nostrodamus). Picture of Jordi Corbera.

Southern scarce swallowtail (Iphiclides podalirius). Picture of Jordi Corbera.

False ilex hairstreak (Satyrium esculi). Picture of Jordi Corbera.

High brown fritillary (Fabriciana adippe). Picture of Jordi Corbera.

Did you know we also record butterfly–flower interactions? 🦋🌸

Three decades of observations show how species loss limits the capacity of communities to reorganize their interactions in response to environmental change.

📄Read the scientific article: l1nq.com/L5wls

Sageta negra (Gegenes nostrodamus). Foto de Jordi Corbera.

Papallona zebrada aranesa (Iphiclides podalirius). Foto de Jordi Corbera.

Marroneta del roure (Satyrium ilicis). Foto de Jordi Corbera.

Argentada de punts vermells (Fabriciana adippe). Foto de Jordi Corbera.

Sabies que també comptam interaccions papallona-flor? 🦋🌸

Tres dècades d'observacions mostren com la pèrdua d’espècies limita la capacitat de les comunitats per reorganitzar les seves interaccions davant els canvis ambientals.

🔗Notícia (cat): l1nq.com/KBoEF
📄Article científic (eng): l1nq.com/L5wls

Diversos gràfics de l'estudi amb la presència d'una papallona zebrada i una llimonera.

Un estudi recent liderat per @paucolom.bsky.social i amb participació de @ylndmc.bsky.social del @creaf.cat constata, entre altres coses, que la urbanització intensifica els impactes del #canviclimàtic en les poblacions de #papallones 🧵👇

Les confons sovint? Tenim la solució 🦋

Hem recopilat en un sol document totes les fitxes d'identificació publicades als 17 números de la revista Cynthia des del 2001. Més de 100 especies incloses!

👉 Descarrega el dossier complet: www.catalanbms.org/ca/recursos/

Addressing Gaps in Butterfly Population Monitoring to Catalyze Global Insect Conservation The conservation community sorely lacks a global indicator of change in insect populations. Given widespread insect declines, addressing this gap is key for conservation and policy targets. We sugges...

We’re missing a global indicator to track insects. By analyzing thousands of butterfly populations, we highlight both promising signals and key challenges—showing why these taxa are strong candidates for building a Global Index to support conservation. conbio.onlinelibrary.wiley.com/doi/10.1111/...

Three Decades of Butterfly–Plant Interaction Turnover Explained by Climate and Species Loss Long-term biodiversity loss reshapes interaction dynamics inpollination networks. Communities become increasingly dominated bygeneralist species that are more capable of rewiring interactions thanspe...

New study on temporal interaction turnover using a unique dataset 🦋🪷

Communities adapt to climate fluctuations through rewiring. But over the long term, as species are lost, rewiring declines—reducing the capacity of communities to buffer environmental change
onlinelibrary.wiley.com/doi/epdf/10....

Three Decades of Butterfly–Plant Interaction Turnover Explained by Climate and Species Loss Long-term biodiversity loss reshapes interaction dynamics inpollination networks. Communities become increasingly dominated bygeneralist species that are more capable of rewiring interactions thanspe...

New study on temporal interaction turnover using a unique dataset 🦋🪷

Communities adapt to climate fluctuations through rewiring. But over the long term, as species are lost, rewiring declines—reducing the capacity of communities to buffer environmental change
onlinelibrary.wiley.com/doi/epdf/10....

Stop mowing the lawn – and five more ways to save Britain’s ‘charming’ and ‘polite’ gatekeeper butterflies Conservation can be hard work. But not when it comes to helping these little orange and brown beauties

Do you want life in your garden?
Stop constantly mowing it.

www.theguardian.com/environment/...

Butterflies crossing oceans, moths navigating by the stars: unravelling the mysteries of insect migrations Trillions of insects embark, largely unnoticed, on epic journeys every year across mountain ranges, deserts and seas, and it is only now, as their numbers suffer huge declines, that scientists are tra...

Nice summary of long distance insect migration in the Guardian today with fancy graphics www.theguardian.com/environment/...

De 0,2 ºC por década a 0,35 ºC: el ritmo de calentamiento global casi se ha duplicado desde 2015

https://f.mtr.cool/uyaxjkfekp

Limited thermal tolerance in tropical insects and its genomic signature - Nature A survey of tropical insect populations and thermal tolerance limits indicates that species from lowland areas have low capacity to survive increased temperatures, and that thermal tolerance is limite...

Looks like a fundamental study and approach ... Limited thermal tolerance in tropical insects and its genomic signature. Insects at high elevations utilize plasticity to cope with rising temperatures, whereas lowland species have limited plastic abilities. www.nature.com/articles/s41... 🧪🌐

This February I’ve been sharing results from our new study on temporal interaction turnover and its links to climate change and species loss.

Presented at @ecoflor.bsky.social 🌼 and the CBMS meeting 🦋

And the month ends with great news: the paper has been accepted in Ecology Letters! 🎉

Effects of flower patch additions and urbanisation on cavity‐nesting bees and wasps Urbanisation can negatively affect cavity-nesting bees and wasps, yet common conservation interventions such as flower patches and artificial nests lack strong empirical support. In a 2-year experime...

New paper out today (my final PhD chapter)! Increasing impervious surfaces strongly reduces cavity-nesting bee and wasp communities, and flower patches alone showed no detectable impact. @aer-ese-bes.bsky.social #openaccess
besjournals.onlinelibrary.wiley.com/doi/10.1002/...

We just released the latest update of the European Grassland Butterfly Indicator.
doi.org/10.5281/zeno...
With nearly 50% decline since 1991 and the decline not reversing, this is again an urgent call for actions for bending the curve, restore habitat and protect biodiversity

Evolution, genomics and conservation of butterflies and moths - Nature Reviews Biodiversity Butterflies and moths are key indicators of functioning and healthy ecosystems around the world. This Review describes the evolutionary history of the order Lepidoptera and tracks shifts in researcher...

Now online! In this review, we cover four major topics on butterflies and moths: their evolutionary history and diversification dynamics, genomics, global diversity patterns, and conservation 🦋🌏 (1/8) @natrevbiodiv.nature.com
www.nature.com/articles/s44...

Com l'ombra d'un arbre pot canviar-li la vida a un insecte (i als humans) Davant l’augment de les temperatures, conservar microclimes favorables pot marcar la diferència entre l’extinció local i la persistència d’una espècie. Hi ha grans solucions als mons petits que també ...

Davant l’augment de les temperatures, conservar microclimes favorables pot marcar la diferència entre l’extinció local i la persistència d’una espècie. Hi ha grans solucions als mons petits que també ens beneficien els humans.

✍️ @jdiazcalafat.bsky.social, @uib.cat @culturacientifica.uib.cat

New paper on global change impacts on insects, out in GEB🦋🌍

Climate change and urbanisation act synergistically: butterfly declines are stronger under warming in urban environments.

Species traits help explain heterogeneous responses.

onlinelibrary.wiley.com/doi/10.1111/...

@ylndmc.bsky.social

🚨PhD offer 👩‍🎓:
Fascinated by island biodiversity, palaeoecology & human impacts on ecosystems? 🌴🦜🌍 Join @creaf.cat to explore how island life changed over the last 11,700 years.
Deadline: 27 Oct 2025
Selection: ~November
Starting: ~January 2026
Supervision: @sandranogue.bsky.social & me
More info👇

🤓👌

Five 3-year Postdoc positions open at @ebdonana.bsky.social. I am happy to sponsor and mentor good candidates working in my field, but note that these are quite independent positions aimed at helping stabilize new researchers in the system. www.dropbox.com/scl/fi/4nqkq...

Three decades of declines restructure butterfly communities in the Midwestern United States | PNAS Insects are declining worldwide. These declines have been documented across taxonomic groups and are worrisome given ecosystem services provided by...

More bad news for butterflies. Our new paper led by Wendy Leuenberger shows common species are declining even more rapidly than rare ones. @ZipkinLab

Three decades of declines restructure butterfly communities in the Midwestern United States | PNAS www.pnas.org/doi/10.1073/pnas.2501340122

A full report of our latest European Grassland Index has just been published. It gives individual species trends as well as the overall decline of 50% since 1991-2023. Another update will be coming soon to include 2024 (which was not a good year for many butterflies) doi.org/10.5281/zeno...