Is boldness affected by group composition in young-of-the-year perch (Perca fluviatilis)?

Magnhagen, Carin; Staffan, Fia

doi:10.1007/s00265-004-0834-1

Cited by 86 publications

(94 citation statements)

References 38 publications

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“…It is a common assumption of personality research that responsiveness to stimuli falls along a one-dimensional continuum, with fast and slow individuals at each end of the trait axes. Comparing the same trait across contexts, however, variance in behaviour is often lower in intermediates than in extremes, suggesting lower responsiveness to environmental stimuli (Coleman and Wilson, 1998;Magnhagen and Staffan, 2005;Vas et al, 2008). Indeed, in wild great tits (Parus major), survival and reproductive success also vary less with environmental variation in intermediates than in extremes .…”

Section: Discussionmentioning

confidence: 99%

Oxidative profile varies with personality in European greenfinches

Herborn

Coffey²,

Larcombe³

et al. 2011

Journal of Experimental Biology

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SUMMARYWhere behavioural responses differ consistently between individuals, this is termed 'personality'. There is the suggestion, but with little supporting data, that personality traits reflect underlying variation in physiology. Here, we tested whether greenfinches Carduelis chloris differing in personality traits differed in various plasma indices of oxidative profile: antioxidant capacity (OXY), pro-oxidant status (reactive oxygen metabolites, ROMs), oxidative stress (OS) and an end-product of oxidative damage: malondialdehyde (MDA). We measured two personality traits: neophobia (latency to approach food near novel objects) and object exploration (latency to approach novel objects). These traits were uncorrelated. ROMs, OXY, OS and MDA were also uncorrelated with each other. Highly neophobic birds had lower OXY, higher ROMs and higher OS than less neophobic birds. Fast exploring birds had higher OXY than slow explorers, but did not differ in ROMs or OS. Variation in MDA was described by a quadratic relationship with neophobia: birds with extremely high or low neophobia had lower MDA than birds with intermediate neophobia, despite highly neophobic birds exhibiting lower OS than intermediately neophobic birds. Additively in that model, fast explorers had lower MDA than slower explorers. To conclude: first, personality types can differ in oxidative profile. Second, although physiological differences (e.g. hormonal stress responsiveness) between personality types generally range along a linear continuum, physiological costs may not. Finally, relationships with oxidative profile differed between neophobia and object exploration. Understanding how oxidative profile and thus physiological costs vary within and between personality traits may explain how differences in personality traits can predict fitness.

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Section: Discussionmentioning

confidence: 99%

Oxidative profile varies with personality in European greenfinches

Herborn

Coffey²,

Larcombe³

et al. 2011

Journal of Experimental Biology

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“…This measure also correlates with other measures such as the tendency to leave the safety of a shoal and approach a novel object . Others have measured the predator inspection behavior (e.g., Godin & Dugatkin 1996;Johnsson et al 2001), or the tendency to forage under predation threat (Ward et al 2004;Magnhagen & Staffan 2005), both of which clearly involve an element of risk and are designed to induce a fear response.…”

Section: Lateralization and Personalitymentioning

confidence: 99%

Lateralization of Cognitive Functions in Fish

Bisazza

Brown

2011

Fish Cognition and Behavior

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“…In previous studies, we have found individual variation in boldness within small groups of perch Perca fluviatilis, measured in aquaria as time spent foraging in an open habitat and number of prey attacks, in the presence of a predator (Westerberg et al 2004;Magnhagen and Staffan 2005). In this study, I investigated whether young-of-the-year (YOY) perch from different populations differed in these risk-taking behaviours.…”

Section: Introductionmentioning

confidence: 99%

“…Foraging often decreases vigilance (reviewed in Elgar 1989;Lima and Dill 1990), and the choice between foraging in a risky area and seeking shelter have earlier been used as an estimate of degree of boldness/shyness in fish (Sneddon 2003;Magnhagen and Staffan 2005). In previous studies, we have found individual variation in boldness within small groups of perch Perca fluviatilis, measured in aquaria as time spent foraging in an open habitat and number of prey attacks, in the presence of a predator (Westerberg et al 2004;Magnhagen and Staffan 2005).…”

Section: Introductionmentioning

confidence: 99%

Risk-taking behaviour in foraging young-of-the-year perch varies with population size structure

Magnhagen

2005

Oecologia

Self Cite

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I investigated if risk-taking behaviour of young-of-the-year (YOY) perch Perca fluviatilis was connected with population-specific predation patterns in four lakes in northern Sweden. The lakes differ in perch size distribution, according to earlier fishing surveys. Thus, the most intense predation pressure by cannibals is assumed to occur at different prey-size windows in the four lakes. In an aquarium study, I observed groups of perch, and registered time spent foraging in an open habitat and number of prey attacks in the presence of a predator. Perch from Angersjön, with the highest proportion of large fish in the population, spent more time in the open area than those from Fisksjön that has a dense population of mainly small perch. The Angersjön perch also made more prey attacks than did perch from Fisksjön and Bjännsjön. Relative differences in predation risk in the four lakes were estimated as cannibalistic attack rates, on a range of sizes of YOY perch, calculated from population size distributions. Principal component analysis on predation risk patterns resulted in two components, of which PC1 explained 79.1% of the variation. High scores of PC1 indicated low cannibalistic attack rates on smaller perch (10-20 mm) and high rates on larger fish (> or =30 mm), while low scores indicated the opposite. The level of risk-taking behaviour in the aquarium study positively correlated with lake-specific PC1 scores. The perch with the most cautious behaviour in the aquaria originated from the population with the highest predation pressure on early stages. The boldest perch came from the lake with low predation on the smallest, but with higher predation on larger YOY perch. Thus, the influence of predation risk on behaviour patterns in perch may depend on the timing of the highest exposure to predators.

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Is boldness affected by group composition in young-of-the-year perch (Perca fluviatilis)?

Cited by 86 publications

References 38 publications

Oxidative profile varies with personality in European greenfinches

Oxidative profile varies with personality in European greenfinches

Lateralization of Cognitive Functions in Fish

Risk-taking behaviour in foraging young-of-the-year perch varies with population size structure

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