Oscar Vedder
@oscarvedder.bsky.social
170 followers 220 following 4 posts
Researcher at the Institute of Avian Research Behavioural Ecology | Evolutionary Ecology | Ornithology
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Reposted by Oscar Vedder
commonternproject.bsky.social
When we hypothesised female terns to have lower mercury levels than males due to egg laying, @matteobeccardi.bsky.social et al designed an elegant experiment to prove the effectiveness of this pathway. That proof just got published & the open access paper can be found here: doi.org/10.1016/j.en...
oscarvedder.bsky.social
Another excellent paper by @matteobeccardi.bsky.social, with great help from Justine Bertam, @commonternproject.bsky.social, @pablosalmon.bsky.social, @icbm-uol.bsky.social
matteobeccardi.bsky.social
I'm happy to share with you our new paper out now in Environmental Pollution!
Here, we experimentally studied the maternal offloading of mercury pollution via reproduction in an avian model species.

Read the paper here for more details👇
doi.org/10.1016/j.en...
Reposted by Oscar Vedder
joewynnbirds.bsky.social
🚨 PhD alert 🚨 We are looking for a highly motivated student to use 🧬 genomics 🧬 and 🛰️ bio-logging 🛰️ approaches to disentangle cultural and genetic contributions to seabird migration 🐣 Think this is you, or someone you know? Then come to our Q&A session at on 29/09 and check out the ad below!
Reposted by Oscar Vedder
commonternproject.bsky.social
Our neighbours at the Banter See are no fan of the terns. Luckily the terns don't give a shit. Oh, or maybe sometimes they do. :-)
Reposted by Oscar Vedder
Reposted by Oscar Vedder
commonternproject.bsky.social
Live from the field: the first 4 chicks of 2025 have hatched. ❤️ #babyboom
Reposted by Oscar Vedder
cyanistesnord.bsky.social
I am looking for a postdoc wanting to use functional genomics to understand why birds 🐦 struggle with climate warming in @erc.europa.eu project #HotLife. Ideal candidate is a molecular evolutionarybiologist. Join us at @biologylu.bsky.social. Details 👇
shorturl.at/wijEq

Would appreciate a re-post!
Post-doctoral fellow in functional genomics and ecophysiology
Subject description The goal of the project is to uncover the mechanisms explaining why global warming and heatwaves reduce reproductive success and cause excess mortality in wild and domesticated war
lu.varbi.com
Reposted by Oscar Vedder
commonternproject.bsky.social
Last weekend was exciting! Together with @gullbilledterns-de.bsky.social,‬ and thanks to the amazing teams at Druid & Interrex, we deployed the first gull-billed tern with a GPS. It returned to the nest after a quick preening session and for the last 3 days has shared its foraging sites with us.
Reposted by Oscar Vedder
joewynnbirds.bsky.social
Now 11 birds recaught 😎 new pressure loggers giving insights into migration I never thought possible, absolutely incredible technology. Wouldn’t be possible without the help of friends here in Georgia, Levan, Sopo, Vano and Natia 🇬🇪 ☺️
Reposted by Oscar Vedder
commonternproject.bsky.social
Chapter 10 is dedicated to the Banter See common terns, showing how they too have suffered from a population crash following the outbreaks of avian influenza in 2022 and 2023.
Reposted by Oscar Vedder
genmig.bsky.social
meanwhile in #Georgia - where and how long do #blackcaps breeding in this eastern #location migrate? @joewynnbirds.bsky.social @andalgalornis.bsky.social and @oscarvedder.bsky.social are on a mission & have already caught 9 returning #geolocator birds. stay tuned! @ifv-whv.bsky.social
male blackcap in the hand at our field site in Georgia. the bird is proudly wearing a geolocator on its back, which will literally shed light into their migratory behaviour, giving insight into overwintering areas and timing, direction and distance of its route.
Reposted by Oscar Vedder
royalsocietypublishing.org
Male inbreeding reduces fertility, but does not accelerate in vivo sperm senescence: an experimental approach in a polyandrous bird royalsocietypublishing.org/doi/10.1098/... | #BiologyLetters #Behaviour #Evolution
Reposted by Oscar Vedder
commonternproject.bsky.social
And here's another shout-out to the wonderful tern-and-quail team, which, led by Nathalie and @matteobeccardi.bsky.social, prepared a gorgeous hat for Justine. ♥️
Reposted by Oscar Vedder
commonternproject.bsky.social
Yesterday, Justine Bertram, the lovely soul in the center of this picture, successfully defended her PhD thesis. As throughout her time with the terns and at the @ifv-whv.bsky.social, she did a brilliant job. I could not be more proud, or sad that she is fledging now.
Reposted by Oscar Vedder
bou.org.uk
BOU @bou.org.uk · May 7
Male inbreeding reduces fertility, but does not accelerate in vivo sperm senescence: an experimental approach in a polyandrous bird | royalsocietypublishi... | Biology Letters | #ornithology 🪶
Reposted by Oscar Vedder
commonternproject.bsky.social
More loveliness today: half of the F1 joined for the morning observations (and took 267 photos of terns), and we spotted a colour ringed bird. Turned out to be one of our 'own' 2022 chicks, who received her additional bling on migration.
Reposted by Oscar Vedder
commonternproject.bsky.social
Live from the field: the first egg of 2025 is a fact! Laid by a lovely geolocator lady, while her ringed partner looked proud. Mum is incubating, and dad is off now, presumably to catch her a fish. ♥️ #firstegg #seabirds #ornithology
Reposted by Oscar Vedder
antoinestier.bsky.social
Please share: (competitive) PhD funding in Strasbourg (France) to work on 🐧🔥:

Physiological and reproductive consequences of ‘warm’ environmental conditions on land in a sub-polar penguin species

Fieldwork in Crozet 🇹🇫 is forecasted (pending on HPAI situation)

amethis3.unistra.fr/amethis-clie...
Reposted by Oscar Vedder
matteobeccardi.bsky.social
Happy to share our new publication on the effect of inbreeding on male fertility and sperm senescence, out now in @royalsocietypublishing.org.
Many thanks to @oscarvedder.bsky.social, @btschirren.bsky.social and @ifv-whv.bsky.social.

Take a look below if you want to know more about this work👇😉
Reposted by Oscar Vedder
ifv-whv.bsky.social
New publication by @matteobeccardi.bsky.social and @oscarvedder.bsky.social (with @btschirren.bsky.social) in @royalsocietypublishing.org: 'Male inbreeding reduces fertility, but does not accelerate in vivo sperm senescence: an experimental approach in a polyandrous bird'
doi.org/10.1098/rsbl...
A male Japanese quail
Reposted by Oscar Vedder
commonternproject.bsky.social
204 birds have now been registered by the automated registration system. Yesterday, one of our favourites returned too: 11-yr old Dextro, to us better known as our ‘bouncer boy’, because he’s the one that nests just behind the spot where we tie our boat and tries to keep us out of the colony. ♥️