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Associations on land and at sea? A pilot study on the utility of proximity loggers to assess inter-individual relationships in colonial seabirds

Associations on land and at sea? A pilot study on the utility of proximity loggers to assess inter-individual relationships in colonial seabirds

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Authors

Antoine Morel , Pierre-Paul Bitton

Abstract

Accurate and extensive data collection is essential for understanding animal sociality, but collecting associations between individuals remains challenging. Animals often associate and interact outside of the range of an observer, especially in environments such as underwater or underground. However, the development of proximity loggers using Bluetooth and radio frequency to detect associations allows scientists to access behavioural information that would otherwise be impossible to collect. Here we examined the use of a logger with a proximity feature to capture associations between Atlantic puffin individuals and assessed how it could complement observations social network studies. To understand the capabilities of the logger, we tested the effect of distance on signal strength and proportion of associations detected, as well as the proportion of contacts recorded by each logger in a dyad, in lab-based and field environments. Thereafter, we tested the loggers on live Atlantic puffins and compared their performance against visual observations. As expected, signal strength decreased with distance, and lab-based values were more consistent than in the field. The proportion of contacts successfully processed decreased with distance, but our experiment in the field was more reliable, probably because we used a lower logger density, limiting opportunities for interference among units. More importantly, the loggers identified more putative associations than detected by observations, including many when and where individuals were not under observation. We also demonstrate that Atlantic puffins that associate frequently on land also associate frequently at sea. Our results bring new insight into the understanding of Atlantic puffin social behaviours, particularly at times and in locations challenging to monitor.

DOI

https://doi.org/10.32942/X2W648

Subjects

Marine Biology, Ornithology

Keywords

Associations, Atlantic puffin, Dyad, Focal sampling, social behaviour, social network, Visual observation

Dates

Published: 2025-08-15 11:46

Last Updated: 2025-08-15 11:46

License

CC-By Attribution-NonCommercial-NoDerivatives 4.0 International

Additional Metadata

Conflict of interest statement:
The authors declare that they received a rebate from TechnoSmart for the proximity loggers to conduct this pilot study. TechnoSmart did not see a draft of the manuscript prior to submission, nor did they participate in the study or in the writing of the manuscript. The authors did not receive any compensation for using the proximity loggers.

Data and Code Availability Statement:
Data, including analysis, are available in an open-access public repository, accessible via https://osf.io/xy4az/?view_only=538a1e14c263405f8742b747e44cddc3.

Language:
English