Jelena Belojevic

Happy International Day for #WomenInScience! I’m Lisa Kreye, a HelLO master’s student studying whether species traits can explain variability in birds’ responses to environmental change. Grateful for the mentorship of amazing women scientists like @jellybb.bsky.social and @laurabosco.bsky.social 🐦

Sex-role reversal and the Bateman gradient in coucals—females benefit from mating with multiple partners Abstract. Conventional sex roles imply that males compete more vigorously with each other for fertilizations, whereas females are more selective in choosin

Our new paper on Bateman gradients in black coucals and white-browed coucals is out. Females of both species outperform males in mating and reproductive success - confirming the generality of Bateman's principle when sex roles differ.
Check it out: royalsocietypublishing.org/rspb/article...

Another day of #AnimoveCR 😀 Analysing animal movement with continuous-time models by @ecoisilva.bsky.social and Chris Fleming, ending with a fantastic plenary talk by @kamransafi.bsky.social on Kruger National Park research.

Countdown for #AnimoveCR at La Selva Estación Biológica, Organization of Tropical Studies 👍
We will see you tomorrow!
@mpi-animalbehav.bsky.social @animove-course.bsky.social @animaltracking.bsky.social @livingingroups.bsky.social

Purple throated mountain gem

Lesson's motmot

Resplendent quetzal

Crocodile

After absolutely amazing adventures in Costa Rica for 2wks it's time to start working in the jungle and learn lots of cool & useful things with @animove-course.bsky.social
Looking forward to tomorrow!

Jane Goodall with monarch butterfly scarf

“It actually doesn’t take much to be considered a difficult woman. That’s why there are so many of us.”
― Jane Goodall

💙 RIP to a real one. My childhood hero

Congrats!

Victoria’s riflebirds are masters of time, accelerating their dance tempo by reducing the durations between movements by just 50 milliseconds, before leveling off at 3 alternations per second and flashing their yellow mouth.

Read more about this spectacular dance here:
www.cell.com/current-biol...

The diversity in plumage and behaviors of #ruffs is stunning and probably an underused asset for their #conservation @simonvandepitte.bsky.social #IWSG2025 #shorebirds #ornithology

Something to look for in #wader nests. Blue eggs are becoming increasingly common in #ruff clutches @jellybb.bsky.social #IWSG2025 #shorebirds #conservation

Interesting talk by @jellybb.bsky.social about the aberrant egg coloration in Ruff clutches. Blue eggs may affect nest survival, but fitness effects may be habitat dependent. @waderstudy.bsky.social IWSG Conference 2025 in Groningen (Netherlands) #IWSG2025 #waders #shorebirds

Belated but wonderful news: Kriszti Kupán has won a 3-year grant from the Bauer-Hollmann Stiftung for monitoring and developing an integrative #conservation management approach for threatened #ruffs and #dunlins at #Liminganlahti! 🥚🎉🐣

There are now 148 blogs about waders/shorebirds in the WaderTales catalogue. Here's the list of what's available, with a short descriptor of each blog:
wadertales.wordpress.com/about/
There are 14 blogs about (Eurasian) #Curlew, just to name one species.
#ornithology

Face-first view of a brown spider with long legs. He is carrying a nuptial gift (silk-wrapped prey) in his chelicerae.

The first chapter of my thesis is out now in Journal of Ethology! Check it out if you're interested in taking a deep dive into the vibrational signal of a very cute spider 🕷️〰️

Variation of vibratory performance during courtship of a cursorial spider: doi.org/10.1007/s101...

We're not really sure! Could be something from the environment? We noticed fluctuation between years/field sites in the occurrence of these blue/pale eggs which are the most odd ones..

Intraclutch egg color variation in #ruffs is striking. Pale to strongly pigmented, speckled and not speckeled and even blue eggs within a single clutch 💙

Adorable #ruff chicks for your Sunday evening. Or Monday morning.

It's always nice to have back a bird you ringed!
@wmgvs.bsky.social remember Ljudmila?

Sunday morning delight! Woodcock with her chicks feeding and brooding in front of our kitchen window.
☺️🪄✨

Blonde ruff female standing in grasses by its nest.

Ruff clutch of four eggs, three eggs abnormally pale.

Yesterday, we found the nest of this blonde female. Three of her eggs were also exceptionally pale. #ornithology #waders

Ruff male with brownish ornaments co-display with pale-ruffed satellite morph. Female stands by them.

Ruff lekking: The co-display of a pale satellite and a court-defending independent morph increases male attractiveness. Lekking began here (65°N) in the first week of May and continues, even though most females are already incubating and the first chicks are expected to hatch any day now.

Yeah. Lapwings are quite contrasting, even in grass. But I know the struggle with plovers. Here in Finland they nest on former snow dumps and beaches too. Takes some serious pattern recognition to find them

Maybe a posted the one from a rather difficult angle 😁

Can you find all adorable #lapwing chicks on the photo? 🥰

A female Ruff enters her nest — a tent-like shelter hiding her precious eggs. She’s unringed for now, but she’ll receive her bands once the chicks hatch. #waders #ornithology

@simonvandepitte.bsky.social

This year we spent long (and cold) nights out to capture #ruffs during peak #lekking. Each one ringed and fitted with a transmitter to help us track their movements and behavior.
Thanks to the team for the effort and stamina it takes to pull this off 💤
@koivulakari.bsky.social @chorlnev.bsky.social

Ruff clutches are expertly hidden, the eggs are camouflaged and very difficult to find. But this year’s field crew with @jellybb.bsky.social @simonvandepitte.bsky.social @koivulakari.bsky.social @vmpakanen.bsky.social is on 🔥 and found already plenty of them.

@chorlnev.bsky.social @simonvandepitte.bsky.social

Shout out to Vroni Rohr-Bender for being an exceptional chick mum 🐣