“Micropersonality” traits and their implications for behavioral and movement ecology research

Bailey, Joseph D.; King, Andrew J.; Codling, Edward A.; Short, Ashley M.; Johns, Gemma; Fürtbauer, Ines

doi:10.1002/ece3.7275

Cited by 13 publications

(10 citation statements)

References 93 publications

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“…The lack of a link between motion in the start box and leadership could indicate that motion captured prior to free-swimming does not reflect "activity" as measured in other behavioral studies (Carter et al 2013). However, this finding is similar to other work with stickleback fish shoals (of the same shoal size) that did not find links between exploratory tendency and leadership (Jolles et al 2017), and a recent study of our fish population has found finescale motion and broad-scale behavioral parameters are broadly equivalent, suggesting value in this approach (Bailey et al 2021). Future work should now focus on between-individual variation in how fish balance goal-oriented movement and socially oriented behaviors (Conradt et al 2009) and attempt to measure this trade-off (sticking with others versus moving away from them) in-situ during controlled experiments, and in different contexts (e.g.…”

Section: Discussionsupporting

confidence: 91%

“…Recent work with our study population of stickleback fish has shown that fine-scale measures of fish motion and broad-scale behavioral parameters that are commonly used in animal personality research are broadly equivalent ( Bailey et al 2021 ). We, therefore, measured fish motion in their start boxes ( Figure 1c ) using a custom-made routine (implemented in C++ using OPENCV library, Bradski 2000 ) and expected this to represent a measure of fish “activity”.…”

Section: Methodsmentioning

confidence: 99%

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Emergence and repeatability of leadership and coordinated motion in fish shoals

et al. 2021

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Studies of self-organizing groups like schools of fish or flocks of birds have sought to uncover the behavioral rules individuals use (local-level interactions) to coordinate their motion (global-level patterns). However, empirical studies tend to focus on short-term or one-off observations where coordination has already been established or describe transitions between different coordinated states. As a result, we have a poor understanding of how behavioral rules develop and are maintained in groups. Here, we study the emergence and repeatability of coordinated motion in shoals of stickleback fish (Gasterosteus aculeatus). Shoals were introduced to a simple environment, where their spatio-temporal position was deduced via video analysis. Using directional correlation between fish velocities and wavelet analysis of fish positions, we demonstrate how shoals that are initially uncoordinated in their motion quickly transition to a coordinated state with defined individual leader-follower roles. The identities of leaders and followers were repeatable across two trials, and coordination was reached more quickly during the second trial and by groups of fish with higher activity levels (tested before trials). The rapid emergence of coordinated motion and repeatability of social roles in stickleback fish shoals may act to reduce uncertainty of social interactions in the wild, where individuals live in a system with high fission-fusion dynamics and non-random patterns of association.

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Section: Discussionsupporting

confidence: 91%

Section: Methodsmentioning

confidence: 99%

Emergence and repeatability of leadership and coordinated motion in fish shoals

et al. 2021

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“…Because the location was collected at a 1 Hz frequency the number of points is equal to the number of seconds spent in the area. These five behaviours were selected because they are the most commonly studied movement behaviours in animal personality studies [ 31 , 32 , 39 , 40 ], and because in our view they each capture a different and interesting behavioural aspect of individuals' movement and space use. The length of the time units was chosen to have sufficient temporal resolution while also reducing autocorrelation [ 41 ] and enabling the computation of site fidelity by comparing multiple data points over a time period.…”

Section: Methodsmentioning

confidence: 99%

“…This type of data provides the granularity required for the analysis of inter- and intra-individual variability in behaviour and provides the opportunity to achieve a reliable and objective measures of animal personality and predictability [ 19 , 29 ]. For example, measures of movement and space use show inter- and intra-individual variation in both wild and captive animals [ 30 – 32 ], and such data can easily be collected by modern sensor technologies in farms. Movement behaviours are intrinsically linked with many classically defined personality traits such as ‘exploration’, which is defined by the reaction of an individual towards new environments or objects [ 14 , 31 , 33 ], and ‘activity’, which corresponds to a measure of the amount of movement performed by an individual [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Personality and predictability in farmed calves using movement and space-use behaviours quantified by ultra-wideband sensors

et al. 2022

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Individuals within a population often show consistent between individual differences in their average behavioural expression (personality), and consistent differences in their within individual variability of behaviour around the mean (predictability). Where correlations between different personality traits and/or the predictability of traits exist, these represent behavioural or predictability syndromes. In wild populations, behavioural syndromes have consequences for individuals' survival and reproduction and affect the structure and functioning of groups and populations. The consequences of behavioural syndromes for farm animals are less well explored, partly due to the challenges in quantifying behaviour of many individuals across time and context in a farm setting. Here, we use ultra-wideband location sensors to provide precise measures of movement and space use for 60 calves over 40–48 days. We are the first livestock study to demonstrate consistent within and between individual variation in movement and space use with repeatability values of up to 0.80 and CVp values up to 0.49. Our results show correlations in personality and predictability, indicating the existence of ‘exploratory’ and ‘active’ personality traits in farmed calves. We consider the consequences of such individual variability for cattle behaviour and welfare and how such data may be used to inform management decisions in farm animals.

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“…We checked the model and estimation of repeatability of each calling behaviour and call parameters for outliers, heterogeneity of residuals, and variable collinearity to ensure model assumptions were not violated (Zuur et al 2010 ; Zuur & Ieno 2016 ). Although the number of male individuals tested in this study was limited, the models were not overfitted, and the estimation of repeatability was considered reasonable (Bailey et al 2021 ).…”

Section: Methodsmentioning

confidence: 99%

Phenotypic plasticity of acoustic traits in high-frequency lebinthine crickets (Orthoptera: Eneopterinae: Lebinthina)

Ballesteros

Tan

Robillard

2022

Sci Nat

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Driven by natural and sexual selection, calling behaviours and call parameters can vary within and between individuals. Phenotypic plasticity can be influenced by environmental conditions (e.g., temperature), size, body condition, and age. Crickets have been classic model organisms for studying the evolution of acoustic communication, but previous studies have focused on field crickets, for which males call at a low frequency, while females exhibit phonotaxis. This study holistically investigated the plasticity of calling behaviours and call parameters across a temperature gradient in a species of lebinthine crickets and examined plasticity between and within individuals. These crickets exhibit a unique communication system, including males calling at a near-ultrasonic frequency while actively searching for females. Ten recording assays at different temperatures were done on males of different sizes and body conditions, half of the assays when the males first became adults and another half 1 month later. Size, body condition, and age group of male crickets, as well as the ambient temperature, had different effects on different calling behaviours (e.g., number of songs produced) and call parameters (e.g., call duration, trill syllable period), even when the acoustic traits were correlated. The crickets also exhibited acclimatisation to the experimental conditions in their calling behaviours and acoustic traits to repeated assays. We also found that calling behaviours were less repeatable than temporal call parameters (e.g., call duration, trill duration), which in turn, were less repeatable than the spectral call parameter (dominant frequency).

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“Micropersonality” traits and their implications for behavioral and movement ecology research

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 13 publications

References 93 publications

Emergence and repeatability of leadership and coordinated motion in fish shoals

Emergence and repeatability of leadership and coordinated motion in fish shoals

Personality and predictability in farmed calves using movement and space-use behaviours quantified by ultra-wideband sensors

Phenotypic plasticity of acoustic traits in high-frequency lebinthine crickets (Orthoptera: Eneopterinae: Lebinthina)

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