Inter- vs intra-individual variation and temporal repeatability of escape responses in the coral reef fish<i>Amblyglyphidodon curacao</i>

Jornod, Maïwenn; Roche, Dominique G.

doi:10.1242/bio.013508

Cited by 20 publications

(12 citation statements)

References 33 publications

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“…The CVs of these other traits were all between 15 and 18%, whereas the CVs of escape response traits ranged from 23 to 41%, suggesting that escape response traits have a comparatively low degree of stereotypy. Similarly high CVs (>20%) in escape traits were found in tropical damselfish (Jornod and Roche, 2015). Despite this variability among individuals, most escape response traits show a high degree of repeatability within each individual in various species, including European seabass (Marras et al, 2011), bluegill sunfish (Hitchcock et al, 2015), tropical damselfish (Jornod and Roche, 2015) and red drum larvae (Fuiman and Cowan, 2003).…”

Section: Escape-like Motionsmentioning

confidence: 85%

“…Similarly high CVs (>20%) in escape traits were found in tropical damselfish (Jornod and Roche, 2015). Despite this variability among individuals, most escape response traits show a high degree of repeatability within each individual in various species, including European seabass (Marras et al, 2011), bluegill sunfish (Hitchcock et al, 2015), tropical damselfish (Jornod and Roche, 2015) and red drum larvae (Fuiman and Cowan, 2003). High repeatability in escape response traits indicates that these traits are likely to reliably represent the expected performance level of each individual, which is subject to natural selection.…”

Section: Escape-like Motionsmentioning

confidence: 92%

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Escape responses of fish: a review of the diversity in motor control, kinematics and behaviour

Domenici

Hale

2019

Journal of Experimental Biology

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The study of fish escape responses has provided important insights into the accelerative motions and fast response times of these animals. In addition, the accessibility of the underlying neural circuits has made the escape response a fundamental model in neurobiology. Fish escape responses were originally viewed as highly stereotypic all-ornone behaviours. However, research on a wide variety of species has shown considerable taxon-specific and context-dependent variability in the kinematics and neural control of escape. In addition, escape-like motions have been reported: these resemble escape responses kinematically, but occur in situations that do not involve a response to a threatening stimulus. This Review focuses on the diversity of escape responses in fish by discussing recent work on: (1) the types of escape responses as defined by kinematic analysis (these include C-and S-starts, and single-versus double-bend responses); (2) the diversity of neuromuscular control; (3) the variability of escape responses in terms of behaviour and kinematics within the context of predator−prey interactions; and (4) the main escape-like motions observed in various species. Here, we aim to integrate recent knowledge on escape responses and highlight rich areas for research. Rapidly developing approaches for studying the kinematics of swimming motion both in the lab and within the natural environment provide new avenues for research on these critical and common behaviours.

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Section: Escape-like Motionsmentioning

confidence: 85%

Section: Escape-like Motionsmentioning

confidence: 92%

Escape responses of fish: a review of the diversity in motor control, kinematics and behaviour

Domenici

Hale

2019

Journal of Experimental Biology

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“…Variation in motivation among individuals with different behavioural traits can result in underestimates of maximal performance, inflated error variance and biased repeatability (Losos et al, 2002;Adolph and Pickering, 2008;Careau and Garland, 2012;Jornod and Roche, 2015). To measure performance rather than behaviour, tests must therefore force animals to perform at their maximal level.…”

Section: To Estimate Personality-related Measurement Bias In Performamentioning

confidence: 99%

Demystifying animal ‘personality’ (or not): why individual variation matters to experimental biologists

Roche

Careau

Binning

2016

Journal of Experimental Biology

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152

150

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Animal 'personality', defined as repeatable inter-individual differences in behaviour, is a concept in biology that faces intense controversy. Critics argue that the field is riddled with terminological and methodological inconsistencies and lacks a sound theoretical framework. Nevertheless, experimental biologists are increasingly studying individual differences in physiology and relating these to differences in behaviour, which can lead to fascinating insights. We encourage this trend, and in this Commentary we highlight some of the benefits of estimating variation in (and covariation among) phenotypic traits at the inter-and intra-individual levels. We focus on behaviour while drawing parallels with physiological and performance-related traits. First, we outline some of the confusion surrounding the terminology used to describe repeatable inter-individual differences in behaviour. Second, we argue that acknowledging individual behavioural differences can help researchers avoid sampling and experimental bias, increase explanatory power and, ultimately, understand how selection acts on physiological traits. Third, we summarize the latest methods to collect, analyse and present data on individual trait variation. We note that, while measuring the repeatability of phenotypic traits is informative in its own right, it is only the first step towards understanding how natural selection and genetic architecture shape intra-specific variation in complex, labile traits. Thus, understanding how and why behavioural traits evolve requires linking repeatable inter-individual behavioural differences with core aspects of physiology (e.g. neurophysiology, endocrinology, energy metabolism) and evolutionary biology (e.g. selection gradients, heritability).

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“…[46]. We also measured the distance from the snout of the fish to the stimulus and the angle between the snout, the CoM and the stimulus to control for the variation in the position of the fish when startled [47]. U max and A max were smoothed using a five-point quadratic polynomial regression [48].…”

Section: (D) Video Analysismentioning

confidence: 99%

Mutualistic cleaner fish maintains high escape performance despite privileged relationship with predators

Gingins¹,

Roche²,

Bshary³

2017

Proc. R. Soc. B.

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Predatory reef fishes regularly visit mutualistic cleaner fish (Labroides dimidiatus) to get their ectoparasites removed but show no interest in eating them. The concept of compensated trait loss posits that characters can be lost if a mutualistic relationship reduces the need for a given trait. Thus, selective pressures on escape performance might have relaxed in L. dimidiatus due to its privileged relationship with predators. However, the cost of failing to escape a predatory strike is extreme even if predation events on cleaners are exceptionally rare. Additionally, cleaners must escape from non-predatory clients that regularly punish them for eating mucus instead of parasites. Therefore, strong escape capabilities might instead be maintained in cleaner fish because they must be able to flee when in close proximity to predators or dissatisfied clients. We compared the fast-start escape performance of L. dimidiatus with that of five closely related wrasse species and found that the mutualistic relationship that cleaners entertain with predators has not led to reduced escape performance. Instead, conflicts in cleaning interactions appear to have maintained selective pressures on this trait, suggesting that compensated trait loss might only evolve in cases of high interdependence between mutualistic partners that are not tempted to cheat.

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Inter- vs intra-individual variation and temporal repeatability of escape responses in the coral reef fishAmblyglyphidodon curacao

Cited by 20 publications

References 33 publications

Escape responses of fish: a review of the diversity in motor control, kinematics and behaviour

Escape responses of fish: a review of the diversity in motor control, kinematics and behaviour

Demystifying animal ‘personality’ (or not): why individual variation matters to experimental biologists

Mutualistic cleaner fish maintains high escape performance despite privileged relationship with predators

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