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Characterization of bird formations using fuzzy modelling

Autor(en)
Elisa Perinot, Johannes Fritz, Leonida Fusani, Bernhard Voelkl, Marco S. Nobile
Abstrakt

The investigation of the emergent collective behaviour in flying birds is a challenging task, yet it has always fascinated scientists from different disciplines. In the attempt of studying and modelling line formation, we collected high-precision position data of 29 free-flying northern bald ibises (Geronticus eremita) using Global Navigation Satellite System loggers, to investigate whether the spatial relationships within a flock can be explained by birds maintaining energetically advantageous positions. Specifically, we exploited domain knowledge and available literature information to model by means of fuzzy logic where the air vortices lie behind a flying bird. This allowed us to determine when a leading bird provides the upwash to a following bird, reducing its overall effort. Our results show that the fuzzy model allows to easily distinguish which bird is flying in the wake of another individual, provides a clear indication about flying flock dynamics and also gives a hint about birds' social relationships.

Organisation(en)
Department für Verhaltens- und Kognitionsbiologie
Externe Organisation(en)
Veterinärmedizinische Universität Wien, Waldrappteam, Universität Bern, Universita Ca' Foscari, Venezia, Università degli Studi di Milano-Bicocca
Journal
Journal of the Royal Society Interface
Band
20
ISSN
1742-5689
DOI
https://doi.org/10.1098/rsif.2022.0798
Publikationsdatum
02-2023
Peer-reviewed
Ja
ÖFOS 2012
106051 Verhaltensbiologie
Schlagwörter
ASJC Scopus Sachgebiete
Biotechnology, Biophysics, Bioengineering, Biomaterials, Biochemistry, Biomedical Engineering
Link zum Portal
https://ucrisportal.univie.ac.at/de/publications/37b41e56-83b7-4b2f-957a-d8c16f424758