iiinova — where your digital self keeps evolving

Reposted by Hanja Brandl

Lucy Aplin @lucymaplin.bsky.social · 06/05/2026

A rewarding collaboration between @saltu.bsky.social @klarawanelik.bsky.social @hanjabrrr.bsky.social @damienfarine.bsky.social @mchimento.bsky.social and myself. While single parasite infection can reduce latency to socially learn in GTs, co-infection with multiple parasites has a negative effect.

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Hanja Brandl @hanjabrrr.bsky.social · 30/10/2025

New paper out exploring synchronization of heart rate variability among artisanal fishers who cooperate with dolphins to catch their prey. We show that social factors drive their physiological synchronization during collective hunting. Greatly enjoyed the opportunity to work on this amazing system ♥️

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Reposted by Hanja Brandl

Damien Farine @damienfarine.bsky.social · 29/10/2025

They find neat results. Fishers are more synchronised the longer they spend in the water, the closer they are, and the more cooperative they are (with each other). Yet, heart rate synchrony doesn't translate to fishing success (when dolphins cue)—probably because they have to cast asynchronously. 6/

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Reposted by Hanja Brandl

Damien Farine @damienfarine.bsky.social · 29/10/2025

They then conducted a cross-wavelet power analysis of heart rate variability, which reveals patterns of heart rate synchrony over time and across frequencies. This captures whether synchrony is in phase or anti-phase. 5/

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Reposted by Hanja Brandl

Damien Farine @damienfarine.bsky.social · 29/10/2025

In the second paper, @hanjabrrr.bsky.social and João Valle-Perreira fitted heart rate + GPS sensors to fishers while they fished together with dolphins. This provided simultaneous data on position and heart rate across the line of fishers. 4/

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Reposted by Hanja Brandl

Universität Konstanz @uni-konstanz.de · 23/07/2025

Genau wie viele Menschen zeigen Tiere Anzeichen von Stress, wenn sie versuchen, für eine Gruppe von Artgenossen die Führung zu übernehmen. Zu diesem Ergebnis kommt ein internationales Forschungsteam unter Beteiligung von #UniKonstanz @cbehav.bsky.social BiologInnen: t1p.de/zud05

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Hanja Brandl @hanjabrrr.bsky.social · 23/07/2025

New paper out 🥳 The physiological costs of leadership in collective movements. - Trying to lead the group can be stressful, so it might not always be worth it!#openaccess at @currentbiology.bsky.social @cbehav.bsky.social @mpi-animalbehav.bsky.social

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Hanja Brandl @hanjabrrr.bsky.social · 26/02/2025

Read our commentary on a new article discussing animal ethics in behavioural reserach! onlinelibrary.wiley.com/doi/full/10....

onlinelibrary.wiley.com

Animal Ethics in Behavioral Studies—Advocating a Differentiated View

Click on the article title to read more.

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Reposted by Hanja Brandl

Damien Huzard @dhuzard.bsky.social · 21/11/2024

Social transmission of stress in zebra finches bird: "Effects were stronger in colonies with a greater proportion of stress-treated individuals. Stressors can reach beyond directly exposed individuals by also affecting their group mates."

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Reposted by Hanja Brandl

Damien Farine @damienfarine.bsky.social · 13/11/2024

🚨 Evidence for social transmission of stress in zebra finches In this huge experiment, Hanja Brandl experimentally stressed zebra finches in replicated colonies, and found that their group mates (who were not exposed) showed similar behavioural responses. royalsocietypublishing.org/doi/epdf/10....

Overview of the experimental design and an example of how birds were tracked in the cages.

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