Wieland Heim
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wielandheim.bsky.social
Wieland Heim
@wielandheim.bsky.social
animal ecologist based at University of Oldenburg, Germany #ornithology #birdmigration #animaltracking #pesticides #pollutants

https://wielandheim.com/
New #ornithology paper + @ramonaheim.bsky.social

negative effects of #fire on bird abundance & diversity during stopover🔥

past work focussed on breeding birds, while fire impacts during migration remained unknown 🐤

fire management needed to sustain stopover habitat 👩‍🚒

doi.org/10.1038/s415...
November 19, 2025 at 7:39 AM
A skylark I tagged last autumn in northernmost Germany with a #Motus transmitter (to study #pesticide effects) was now detected near our University in Oldenburg - we @migecol.bsky.social col.bsky.social now have data from 3 migration seasons for this bird!

motus.org/dashboard/#e...

#birdmigration
October 24, 2025 at 1:52 PM
New #ornithology paper:

#Bioaccumulation of metal(loid)s in feathers of the critically endangered Yellow-breasted Bunting 🪶

High #zinc levels linked to lower body condition! 📉

doi.org/10.1093/etoj...

Led by Wangworn Sankamethawee and colleagues from Thailand
October 17, 2025 at 12:05 PM
New bird species for our project investigating animal diversity in stands of #invasive #fallopia #knotweed: Eurasian Jay!
September 17, 2025 at 1:41 PM
Great fun to teach students how to catch and handle #birds for scientific studies and how to collect and analyse fecal samples together with @giovannasandretti.bsky.social - but shocking to see how many songbirds´ droppings contain #microplastics
September 1, 2025 at 2:21 PM
New #ornithology paper out in Journal of Biogeography:

Phylogenomics Supports Island Contribution to Metapopulation Dynamics in a Predominantly Continental Bird Species

doi.org/10.1111/jbi....

Using the world´s smallest rail as study species 😍

Many thanks to Daisuke Aoki and all collaborators!
August 25, 2025 at 1:05 PM
Are skylarks preferring bright nights around full moon for migration?

Ringing data suggests: yes!

Read more in our new #ornithology paper, based on MSc thesis of Dajana Prinz and in cooperation with @ramonaheim.bsky.social @jki-research.bsky.social

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

#birdmigration
June 6, 2025 at 11:07 AM
Finally some fieldwork! It was great fun to support @giovannasandretti.bsky.social´s project tagging & sampling Northern Wheatears on the island of Norderney 😊
May 26, 2025 at 7:54 AM
New #ornithology publication:

High #microplastic #pollution in #birds of urban waterbodies revealed by non-invasively collected faecal samples

www.sciencedirect.com/science/arti...

Based on a student project by Clara Holtmannspötter co-supervised by Friederike Gabel @uni-muenster.de
April 4, 2025 at 10:20 AM
New #ornithology paper ⏰

#birdmigration of a Bluethroat from Siberia along the Central Asian flyway to India/Pakistan

doi.org/10.1007/s103...

Based on BSc thesis of Sarah Strubbe & together with many collaborators 🇷🇺🇩🇪🇩🇰🇨🇭 incl. @ramonaheim.bsky.social

Great fieldwork in Siberia during pre-war times
March 18, 2025 at 8:22 AM
Just tagged the first Jack Snipes with geolocators to locate stopover & breeding sites + collected pesticide exposure samples. A pleasure to support the work of my former ringing mentors J. Hering & D. Kronbach around my birthtown @chemnitz.de - funded by @dornitholges.bsky.social
#ornithology
February 2, 2025 at 4:16 PM
Finally published: migration routes and adult survival of the critically endangered Yellow-breasted Bunting

doi.org/10.1038/s415...

-moderate survival in E but no returning birds in W
-long autumn (moult) stopovers in China

Many thanks to all collaborators in 🇷🇺🇩🇪🇲🇳🇹🇭🇲🇲

#animalmigration #ornithology
January 8, 2025 at 2:55 PM
New paper in @jappliedecology.bsky.social: Arctic migrating barnacle #geese utilize accommodation fields in a new agricultural staging area.
Based on my past postdoc with Toni Laaksonen at University of Turku 🇫🇮 doi.org/10.1111/1365... #ornithology
December 11, 2024 at 7:31 AM