Data from: Active crocodiles are less sociable

Cameron Baker; Barbara Class; Ross Dwyer; Craig Franklin; Hamish Campbell; Terri Irwin; Céline Frère

doi:10.5061/dryad.cfxpnvxcg

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Data from: Active crocodiles are less sociable

Cameron Baker, Barbara Class, Ross Dwyer, Craig Franklin, Hamish Campbell, Terri Irwin and Céline Frère

Dryad, Vol.5 September 2024

Dryad

2024

DOI: https://doi.org/10.5061/dryad.cfxpnvxcg

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Active crocodiles are less sociable

Abstract

acoustic telemetry

animal personality

behaivour

behavioural syndrome

Crocodiles

Crocodylus porosus

FOS: Natural sciences

How animals move and associate with conspecifics is rarely random, with a population’s spatial structure forming the foundation on which the social behaviours of individuals form. Studies examining the spatial–social interface typically measure averaged behavioural differences between individuals; however, this neglects the inherent variation present within individuals and how it may impact the spatial-social interface. Here, we investigated differences in among-individual (co) variance in sociability, activity, and site fidelity in a population of wild estuarine crocodiles, Crocodylus porosus, across a 10-year period. By monitoring 118 crocodiles using coded acoustic transmitters and an array of fixed underwater receivers, we discovered that not only did individual crocodiles repeatably differed (among-individual variation) in each behaviour measured, but also in how consistently they expressed these behaviours through time (within-individual variation). As expected, crocodile activity and sociability formed a behavioural syndrome, with more active individuals being less sociable. Interestingly, we also found that individuals that were either more sociable or displayed greater site fidelity were also more specialised (lower within individual variation) in these behaviours. Together, our results provide important empirical evidence for the interplay between spatial, temporal and social individual-level behavioural variation and how these contribute to forming behavioural niches.

Details

Title: Data from: Active crocodiles are less sociable
Authors: Cameron Baker (Data Collector) - Charles Darwin University
Barbara Class (Data Collector) - Ludwig-Maximilians-Universität München
Ross Dwyer (Data Collector) - University of the Sunshine Coast, Queensland, School of Science, Technology and Engineering
Craig Franklin (Data Collector) - The University of Queensland
Hamish Campbell (Data Collector) - Charles Darwin University
Terri Irwin (Data Collector) - Australia Zoo
Céline Frère (Data Collector) - The University of Queensland
Publication details: Dryad, Vol.5 September 2024
Format: 3 x CSV files; 1 README file; 388.99 MB
Publisher: Dryad
Date published: 2024
DOI: 10.5061/dryad.cfxpnvxcg
Grants: Investigating movement, distribution, abundance and diet to support management objectives for threatened riverine predators in Northern Australia, LP140100222, Australian Research Council (Australia, Canberra) - ARC
Organisation Unit: School of Science, Technology and Engineering
Language: English
Record Identifier: 991062898502621
Output Type: Dataset

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