Simon Maddock
@simonmaddock.bsky.social
1.3K followers 1.9K following 42 posts
Ecology, evolution and conservation of reptiles and amphibians • Senior Lecturer in Ecology and Evolution at Newcastle University • Scientific Associate at Natural History Museum, London • He/Him
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Reposted by Simon Maddock
katiabou.bsky.social
📢 We're excited to launch our AaRCademy Workshop Series kicking off October 7th online!

🧬Our first session, "aDNA Data Processing", will be led by Nikolay Oskolkov from Lund University.

📅 Registration closes September 7th! Sign up via the QR code or link below.

#aDNA @aarc-community.bsky.social
Reposted by Simon Maddock
eljensen.bsky.social
Thrilled that Rachel Gray had a successful viva today! 🐢🐢🧬🧬
My first PhD student #ProudPI
Major thanks to @simonmaddock.bsky.social and Axel Barlow for being examiners
@sciencesncl.bsky.social
Rachel and Evelyn posing for a picture together
Reposted by Simon Maddock
johnv-nguyen.bsky.social
I'm not procrastinating.... making #Pride caecilian DNA stickers is a requirement of my dissertation. Schistometopum thomense and S. ephele, the iconic duo of my PhD work.
Two caecilians in the shape of a double helix.
Reposted by Simon Maddock
eljensen.bsky.social
Returning from another amazing field course hosted at Leshiba Wilderness in South Africa. Wonderful students, great colleagues @simonmaddock.bsky.social and Marion! Highlight was the honey badger on the camera trap! @sciencesncl.bsky.social
Night time camera trap image of a honey badger Photo of cute giraffe on a dirt road in the scrub forest Photo of a group of students crowded around a rock wall looking at ancient rock art Students on a field in sunny South Africa surveying tick populations
simonmaddock.bsky.social
Yes, both strategies can be seen within the same population
simonmaddock.bsky.social
Great that you have highlighted the Seychelles treefrog! In response to your egg laying question (I note I am not from Seychelles but ...): I have found eggs both out of the water and in the water. In the water I have found them on vegetation and stuck to rocks. A SUPER COOL SPECIES!
Reposted by Simon Maddock
anotherbobsmith.bsky.social
DICE is advertising an additional four PhD studentships through our Leverhulme ‘Space for Nature’ Doctoral Scholars programme.

All have a deadline of Deadline 23/04/25.

www.kent.ac.uk/durrell-inst...
Leverhulme Scholars
Leverhulme Scholars
www.kent.ac.uk
simonmaddock.bsky.social
New paper led by Miranda Sherlock on "Submerged Corridors of Ancient Gene Flow in an Island Amphibian". In this paper we found that populations of the Seychelles #caecilian Hypogeophis rostratus would have been connected by palaeo-islands across Seychelles
onlinelibrary.wiley.com/doi/epdf/10....
🧪🐸🐍
(A) Island connectivity with sea level change. Present-day emergent land is coloured for cluster membership inferred with DAPC (see B), and islands unsampled in this study are shown in white. Sampling localities are shown by green dots. Elevation (above sea level) is shown by contour lines (200 m spacing). Smaller islands (Ste. Anne and Curieuse) are circled for clarity. The grey shaded area represents exposed land, with the shade of grey in the key indicating metres below current sea level. Bathymetry data from the GEBCO 2024 repository. Inset map shows position of the Seychelles (indicated with a green loop) relative to Africa. Latitude and longitude given in decimal degrees. (B) DAPC of K = 4, with eight PCs and two eigenvalues. (C) Hypogeophis rostratus, photographed by STM. Structure plot with 10 runs permuted in CLUMPAK and plotted in distruct for K = 2 and K = 3. Vertical bars represent individuals (n = 77). Labels above the plots correspond to the major genetic clusters. Colour codes as in (1B).
Reposted by Simon Maddock
em-shuttleworth.bsky.social
JOB ALERT Exciting opportunity for a Lecturer (equivalent to Assistant Professor) in #PhysicalGeography specialising in #peatland science to join our #Geography department at @uniofmanchester.bsky.social.

Full details for the job can be found here: www.jobs.manchester.ac.uk/Job/JobDetai...
Lecturer in Physical Geography :Oxford Road
www.jobs.manchester.ac.uk
simonmaddock.bsky.social
They missed a trick with that!
simonmaddock.bsky.social
And how good is this educational game about the yearly natural history of the adder. This has been a huge success in educating school kids.
Adder game
simonmaddock.bsky.social
An awesome evening for the launch of the new Adder Pilsner label from Allendale Brewery. Beer and adder talks (the work going on in the North Pennines). What is not to like?!

Lucy and Samuel did a fantastic job presenting the work we have been doing on Conservation Genomics of adders in the region.
Andy Lees Samuel Betts Lucy Struthers Adder beer label
Reposted by Simon Maddock
pedrobd.bsky.social
New paper alert! 🚨- My final PhD chapter is finally out!

What happens to different eDNA components in water? 🌊💧

We tested particle size (small vs. large) and DNA molecule length (86 vs. 387 bp) in recirculating streams—and what we found might surprise you! 🧵👇

#eDNA #MolecularEcology
🔗 Read more:
Comparing the Fate of eDNA by Particle Sizes and Molecule Lengths in Recirculating Streams
The detection of environmental DNA (eDNA) has revolutionized aquatic species monitoring, yet interpreting eDNA data remains challenging due to gaps in our understanding of eDNA ecology (i.e., origin,...
onlinelibrary.wiley.com
Reposted by Simon Maddock
martinemaron.bsky.social
Looking for a PhD in birds and woodlands? We have a funded project available to those eligible to apply as a domestic student (in Australia) @uq-cbcs.bsky.social - message me if interested!
Reposted by Simon Maddock
alistairboxall.bsky.social
If you missed the webinar on progress on the NERC ECOMIX project then you can now view it online. In the presentation, the team provide an update on the monitoring, modelling and ecotoxicology work being done on Yorkshire's rivers.
www.youtube.com/watch?v=lSXB...
UK Freshwater Quality Programme Webinar, January 2025: A project update from ECOMIX.
YouTube video by wateratleeds
www.youtube.com
simonmaddock.bsky.social
And who can forget the amazing Seychelles tree #frog (Tachycnemis seychellensis). This is a female, and in this particular population the males are brown.

We also found two species of caecilian but I failed to get any pictures.

🧪🐍🐸🔬
Seychelles tree frog (Tachycnemis seychellensis)
simonmaddock.bsky.social
Thomasset's Seychelles frog (Sooglossus thomasseti) is the largest of the endemic Seychelles frog family Sooglossidae, and perhaps the rarest of them (or least frequently encountered at least). 🧪🐍🐸🔬
Thomasset's Seychelles frog or Thomasset's frog (Sooglossus thomasseti) Workshop team discussing amphibians in the field.
simonmaddock.bsky.social
The IUCN Red List and Green Status workshops are going fantastically. Tonight we had a break from the computer and found several of the #amphibians that we have been assessing. Here is a beautiful Gardiner's Seychelles #frog (Sechellophryne gardineri), one of the smallest frogs in the World.

🧪🐍🐸🔬
Gardiner's Seychelles frog (Sechellophryne gardineri) Gardiner's Seychelles frog (Sechellophryne gardineri)
simonmaddock.bsky.social
The first day of the joint IUCN Red List and Green Status of Species workshop (the first time they have ever run concurrently) was a great success, focussing on the #frogs of the Seychelles. On to the #caecilians tomorrow
Frog workshop
simonmaddock.bsky.social
We also had talks from the IUCN Red List (Louise Hobin) and Green Status of Species (Magdalena Cygan) authorities about their work. This is a precursor to the Red List and Green Status assessments coming up over the next four days.
Louise Hobin Magdalena Cygan
simonmaddock.bsky.social
Ellen did a fantastic talk about her PhD topic looking at climate change in #caecilians.

The Seychelles Broadcasting Corporation were here, who will be doing a segment about the symposium, and Ellen and I gave an interview about the importance of getting people together for these events.
Ellen Sharkey Ellen Sharkey being interviewed for SBC
simonmaddock.bsky.social
Today's "SEYCHELLES ENDEMIC AMPHIBIANS AND REPTILES: CURRENT KNOWLEDGE AND NEXT STEPS FOR CONSERVATION" symposium was a great success, with many fascinating talks. There have been lots of updates since the last time we ran a Seychelles amphibian symposium in 2019.
Delegates of the SEYCHELLES ENDEMIC AMPHIBIANS AND REPTILES: CURRENT KNOWLEDGE AND NEXT STEPS FOR CONSERVATION Jessica Constance Markus Roesch
simonmaddock.bsky.social
We did record it and we will see how we can make it available. Watch this space