Boldness-exploration behavioral syndrome: interfamily variability and repeatability of personality traits in the young of the convict cichlid (Amatitlania siquia)

Mazué, Geoffrey P. F.; Dechaume-Moncharmont, François-Xavier; Godin, Jean‐Guy J.

doi:10.1093/beheco/arv030

Cited by 97 publications

(66 citation statements)

References 61 publications

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“…Recently, it has been shown that exploration is repeatable and heritable (Dingemanse et al, 2002;Mazué et al, 2015), with permanent environmental (maternal) effects explaining most of the resemblance between parents and offspring (Schuett et al, 2013). Thus, bold and explorative individuals that successfully raise chicks in both urban and rural sites may transmit these behaviors to their progeny, even increasing the correlation between both behavioral traits in urban areas.…”

Section: Discussionmentioning

confidence: 99%

Behavioral Correlations Associated with Fear of Humans Differ between Rural and Urban Burrowing Owls

Carrete

Tella

2017

Front. Ecol. Evol.

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Behavioral studies are fundamental to understanding how animal populations face global change. Although much research has centered upon the idea that individuals can adaptively modify their behaviors to cope with environmental changes, recent evidence supports the existence of individual differences in suites of correlated behaviors. However, little is known about how selection can change these behavioral structures in populations subject to different environmental constraints. The colonization of urban environments by birds has been related to their inter-individual variability in their fear of humans, measured as their flight initiation distance to an approaching human, such that urban life would select for fearless individuals. This behavior has been demonstrated to be heritable and highly consistent throughout the adult lifespan of burrowing owls (Athene cunicularia). Here, we experimentally assessed, in field conditions, whether urban life involves changes in other behaviors such as exploration and antipredatory response through their correlation with fear of humans. Breeding urban birds were more fearless toward humans and were quicker to explore a new food resource and defend their nests from predators than their rural counterparts. However, while fear of humans positively correlated with exploration and antipredatory response in the rural population, it only correlated with exploration in the urban one. Predator release in urban environments could relax-and even counterselect-antipredator behaviors, thus dismantling the behavioral correlation existent in natural populations. Altogether, our results suggest that rural and urban animals may differ in some behavioral aspects, may be as a consequence of the selection processes acting during the colonization of urban areas as well as the different ecological environments encountered by individuals.

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Section: Discussionmentioning

confidence: 99%

Behavioral Correlations Associated with Fear of Humans Differ between Rural and Urban Burrowing Owls

Carrete

Tella

2017

Front. Ecol. Evol.

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“…Most importantly, sex-reversed bearded dragons are significantly bolder than both genetically concordant male and female individuals when tested for neophobia and territory exploration [Li et al, 2016]. Boldness is an important behavioural phenotype associated with fitness, because it can affect an individual's ability to find and secure mating opportunities [Mazué et al, 2015;Sih et al, 2015]. However, increased boldness carries with it a fitness trade-off in predator-rich environments, because being conspicuous may also increase the risk of mortality via predation [Sih et al, 2015].…”

Section: The Consequences Of Sex Reversal On Fitnessmentioning

confidence: 99%

Sex Reversal in Reptiles: Reproductive Oddity or Powerful Driver of Evolutionary Change?

Holleley

Sarre²,

O’Meally

et al. 2016

Sex Dev

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Is sex a product of genes, the environment, or both? In this review, we describe the diversity of sex-determining mechanisms in reptiles, with a focus on systems that display gene-environment interactions. We summarise the field and laboratory-based evidence for the occurrence of environmental sex reversal in reptiles and ask whether this is a widespread evolutionary mechanism affecting the evolution of sex chromosomes and speciation in vertebrates. Sex determination systems exist across a continuum of genetic and environmental influences, blurring the lines between what was once considered a strict dichotomy between genetic sex determination and temperature-dependent sex determination. Across this spectrum, we identify the potential for sex reversal in species with clearly differentiated heteromorphic sex chromosomes (Pogona vitticeps, Bassiana duperreyi, Eremias multiocellata, Gekko japonicus), weakly differentiated homomorphic sex chromosomes (Niveoscincus ocellatus), and species with only a weak heritable predisposition for sex (Emys orbicularis, Trachemys scripta). We argue that sex reversal is widespread in reptiles (Testudines, Lacertidae, Agamidae, Scincidae, Gekkonidae) and has the potential to have an impact on individual fitness, resulting in reproductively, morphologically, and behaviourally unique phenotypes. Sex reversal is likely to be a powerful evolutionary force responsible for generating and maintaining lability and diversity in reptile sex-determining modes.

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“…We performed multiple correlation analysis using the Hmisc package (Harrell, 2014) with the procedure of Benjamini and Hochberg (1995), which is similar to Bonferroni's correction but also reduces type II errors by controlling for false discovery rate (Verhoeven, Simonsen, & McIntyre, 2005). A principal component analysis (PCA) was then performed on all correlated traits involved in the behavioural syndrome, to reduce it to a personality score (David, Auclair, & C ezilly, 2011; Mazu e, Dechaume-Moncharmont, & Godin, 2015). Finally, we investigated the extent to which variation in colour traits was associated with behavioural types by calculation of Spearman rank correlations between personality scores and colour measurements.…”

Section: Discussionmentioning

confidence: 99%

“…There were no other significant relationships between the five behavioural traits (À0.35 < r S < 0.29, P > 0.081). Thus, we performed a PCA on all traits except exploration, which was excluded from the behavioural syndrome due to its lack of correlation with other traits (David et al, 2011;Mazu e et al, 2015). The purpose of the PCA was to reduce individual personality to a single value, hereafter called the personality score.…”

Section: Repeatability and Correlates Of Behavioural Responsesmentioning

confidence: 99%

Coloration reflects behavioural types in the convict cichlid, Amatitlania siquia

Schweitzer

Dechaume-Moncharmont

2015

Animal Behaviour

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Boldness-exploration behavioral syndrome: interfamily variability and repeatability of personality traits in the young of the convict cichlid (Amatitlania siquia)

Cited by 97 publications

References 61 publications

Behavioral Correlations Associated with Fear of Humans Differ between Rural and Urban Burrowing Owls

Behavioral Correlations Associated with Fear of Humans Differ between Rural and Urban Burrowing Owls

Sex Reversal in Reptiles: Reproductive Oddity or Powerful Driver of Evolutionary Change?

Coloration reflects behavioural types in the convict cichlid, Amatitlania siquia

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