Esme Ashe-Jepson
@esme-ashe.bsky.social
620 followers 370 following 64 posts
Post-doc at the University of Würzburg | Global change and temperature impacts on butterflies across the life cycle 🦋🐛☀️ My views are my own, she/her, 🇬🇧 in 🇩🇪
Posts Media Videos Starter Packs
esme-ashe.bsky.social
I’ve had a wonderful week infiltrating the ranks of meteorologists! I’m always excited to share my own research, and I’ve learnt a lot about climatology, a subject with so much collaborative potential with ecology 🌦️🌱🦋🌍
A photo of a name badge
Reposted by Esme Ashe-Jepson
heidelyn.bsky.social
Essential to functioning ecosystems, insects are declining at alarming rates--even in remote areas. A 20-year study in CO found an average annual decline of 6.6% in insect abundance, amounting to a 72.4% drop over the 20-year period. The steep decline was associated with rising summer temperatures.
esme-ashe.bsky.social
I’m very excited to be sharing some of my work on quantifying microclimates and their performance during heatwaves at this years European Meteorological Society conference! I’m very much outside my comfort zone and looking forward to learning lots about climatology across scales 🕵️‍♀️🌍🔍
A photo of the EMS Annual Meeting welcome sign
Reposted by Esme Ashe-Jepson
esme-ashe.bsky.social
With collecting a declining hobby, and many written records discarded instead of being deposited in museums, it is increasingly important to preserve this knowledge and make it accessible for researchers 👩‍💻👨‍💻
esme-ashe.bsky.social
Can we harness the knowledge of local or amateur entomologists to investigate long-term change? 🤔 I’ll be demonstrating how observations of the natural world can be translated into meaningful data and trends at @gfoesoc.bsky.social Thurs 12:15pm 0.001 📚🏫
esme-ashe.bsky.social
One of the stars of the last few weeks has been the lovely water ringlet (Erebia pronoe), who have stunning markings and vivid colours when fresh. 🤩 They’re quite friendly really, if you don’t mind the tickling!
A photo of a water ringlet (Erebia pronoe) on a hand
esme-ashe.bsky.social
And that’s a wrap! Today I finished my butterfly sampling in the Alps, with a final visit to my highest elevation site (and probably my favourite). I caught my 606th butterfly of the month, and it’s time to head home 🦋🗻
A photo of a mountain with trees below
esme-ashe.bsky.social
Today’s catch of the day was also the catch of the week, a stunning swallowtail (Papilio machaon)! 🤩 A beautiful species, and very obliging to let me take some photos while it nectared 🌸🦋☀️
A photo of a swallowtail butterfly (Papilio machaon) with wings open on a flower
esme-ashe.bsky.social
After a few days of rain, we managed to get two dry days to complete our site surveys! Today was a beautiful bright day with a cold wind, air temperatures have dropped 10C in a week! It seems the summer field season is coming to a close, and we were just in time! 🦋🗻
A photo of a mountain with a lake below
esme-ashe.bsky.social
After a rainy few days we’re been back in the field! After a slobbery encounter with some cows, we had a good day sampling. The encounter of the day was this stunning spurge hawk-moth larva (Hyles euphorbiae) 🐛 it was huge, the size of a finger!!
esme-ashe.bsky.social
Another scorching day in the mountains! Today’s site was overflowing with Scotch argus (Erebia aethiops), even watched a few laying their eggs carefully on grass stems. Few other species around, but at least this one is flourishing here
esme-ashe.bsky.social
Today was one of the hottest days we’ve gone out sampling, reaching nearly 30C here in the mountains ☀️🔥 Many butterflies seemed to be hugging the shade today. One of my students spotted this lovely garden tiger moth (Arctia caja) similarly hiding in the shadows
esme-ashe.bsky.social
Another sunny day at our highest elevation plot! Some nice finds today, lots of yellow-spotted ringlets (Erebia manto), and my first ever mountain clouded yellows (Colias phicomone) (sadly no good photos)! So many species out flying, it’s always a pleasure to visit (…except for the climb)
A six spot burnet moth (Zygana filipendulae) taking off from a flower
esme-ashe.bsky.social
Another day out sampling butterflies! Many silver-spotted skippers (Hesperia comma) buzzing about, they’re in good numbers here! Otherwise had the pleasure of sharing a peaceful moment with this painted lady (Vanessa cardui), who seemed reluctant to leave after I interrupted their nectaring 🌸🦋
A painted lady butterfly (Vanessa cardui) sat on a hand with wings open in front of a mountain view
esme-ashe.bsky.social
Another sunny day out sampling butterflies in the Alps! Today we came across a site rich in silver-spotted skippers (Hesperia comma), but in the heat of the sun they were incredibly fast and restless, very hard to catch! 🦋💨☀️ luckily Erebia rarely seem to be in a hurry, so the sampling was still good
A photo of an alpine grassland with mountains in the background
esme-ashe.bsky.social
Today we visited two higher elevation sites, and made the most of the sunshine! ☀️ Highlights include this silver-spotted skipper (Hesperia comma) who seemed comfortable on my insect pot for just long enough to get a quick photo
esme-ashe.bsky.social
Yesterday wasn’t as successful in the field, cows on the sites makes sampling tougher, but highlight of the day was seeing the food chain in action with this small spider munching on a much larger Erebia butterfly. What a feast that must be, and incredible grip to hold them both on such a small stem
esme-ashe.bsky.social
Another successful day in the field, lots of Argynnis species out in the sunshine. It was a particular pleasure to enjoy the view with this high brown fritillary (Argynnis adippe)
A photo of a high brown fritillary (Argynnis adippe) resting on a finger with wings open in front of a mountain view
esme-ashe.bsky.social
Favourite catch so far was this lovely female brimstone (Gonepteryx rhamni), which adorably tucked its head and legs away to do its best leaf impression when caught. I’ve not seen this behaviour up close before, and solidifies this species as my favourite 🥰
esme-ashe.bsky.social
As of yesterday I’m back in the Alps investigating thermoregulation and thermal tolerance of butterflies, and joined by two masters students working on Orthopterans. 🗻🦗🦋☀️ So far the weathers been quite changeable, hopefully improving over the next few days
esme-ashe.bsky.social
Some species can be challenging to ID, particularly if their traits are variable or similar to other species. So I was extremely excited to catch this lovely female Pieris mannii with textbooks traits! My first confident ID of this species, and first record of this species on campus 🤩✨🦋
A photograph of a southern white butterfly (Pieris mannii) being held with wings open A photograph of a southern white butterfly held with forceps
esme-ashe.bsky.social
New Masters launching! 🤩 A 2 year program in Germany and Norway, all courses held in English. Amazing opportunity to learn about some of the most critical challenges the natural world is facing from leading scientists working in this field 🌍🌱
merge-master.bsky.social
We’re excited to launch our Double Degree Master’s in Global Change Ecology – a unique collaboration between the University of Würzburg (Germany) and the University of Bergen (Norway)! Passionate about biodiversity🐛, ecosystems🗻, and today’s urgent environmental challenges🌍? This program is for you!
MERGE - Master of Global Change Ecology
esme-ashe.bsky.social
Often written records in the forms of diaries and field observations are discarded instead of deposited in museums alongside associated collections of specimens. But they provide context and are sources of unique information that are valuable and worthy of curation
A photograph of a pinned moth collection
esme-ashe.bsky.social
New paper alert! Amateur entomologists play an important role in collecting detailed and informative observations of the natural world, which can be used to investigate long term change

doi.org/10.1111/icad...
doi.org