Personality and its variation between sexes in the black‐bellied bunchgrass lizard <i>Sceloporus aeneus</i> during the breeding season

Rangel-Patiño, Carlos Alejandro; García‐Morales, Carla; Mastachi-Loza, Carlos Alberto; Carmen‐Cristóbal, Juan M.; Ruiz‐Gómez, María de Lourdes

doi:10.1111/eth.12814

Cited by 8 publications

(4 citation statements)

References 40 publications

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“…Similarly, an activity–exploration–sociability syndrome has been found in other species, including mosquitofish ( Gambusia affinis ; Cote et al., 2010; Cote et al., 2011), and common lizards ( Zootoca vivipara ; Cote & Clobert, 2007). Recent studies have documented sexual differences in a range of other behavioral syndromes (Rangel‐Patiño et al., 2018). For instance, female Asian elephants ( Elephas maximus ) are typically less aggressive, but more sociable, compared to males (Seltmann et al., 2019).…”

Section: Discussionmentioning

confidence: 99%

“…Similarly, in African penguins ( Sphensiscus demersus ), a relationship between boldness and foraging behavior was observed in females, but not males (Traisnel & Pichegru, 2019). In the black‐bellied bunchgrass lizard ( Sceloporus aeneus ), males had higher levels of activity, boldness, and aggression (Rangel‐Patiño et al., 2018). Given the widespread occurrence of behavioral syndromes in the animal kingdom, it is unclear why a syndrome was not present in L. similis , and more specifically why no sex‐specific variation in syndromes was found.…”

Section: Discussionmentioning

confidence: 99%

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No behavioral syndromes or sex‐specific personality differences in the southern rainforest sunskink (Lampropholis similis)

et al. 2020

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Behavioral syndromes, when individuals within a population express consistent behavioral differences across time and context, are widespread in animal taxa. For many species, males and females experience different selective pressures after maturation, resulting in the divergence of life‐history and behavioral traits. However, the potential for sex‐specific differences in individual behaviors and behavioral syndromes has rarely been assessed. Here, we tested for sex‐specific differences in behavior (activity, exploration, sociability) and personality in the southern rainforest sunskink, Lampropholis similis. We found that most behaviors in L. similis did not differ between sexes, the exception being sociality which was higher in females than males. In terms of consistency among behaviors, activity and exploration, but not sociability, were repeatable, and there were no sex‐specific differences in repeatability of behavioral traits. Although a behavioral syndrome among these three traits is present in a congener (L. delicata), we found no evidence for such a syndrome in either sex of L. similis. Our study is consistent with the results of studies on other Lampropholis skinks that have found only limited sexual differences in behavior. More broadly, our study demonstrates there can be considerable differences in the presence or absence of behavioral syndromes in closely related species.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

No behavioral syndromes or sex‐specific personality differences in the southern rainforest sunskink (Lampropholis similis)

et al. 2020

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“…We assessed breeder aggression in response to a heterospecific nest predator, but it is possible that how aggressive individuals are toward a conspecific could affect cooperative group formation. Aggressiveness is one of the most well‐documented behavioral types (Sih et al., 2004; Sih et al., 2010); individuals display consistency in their level of aggression across contexts (e.g., Duckworth, 2006; Hardman & Dalesman, 2018; Rangel‐Patiño et al., 2018). For example, in western bluebirds, aggression displayed by male and female breeders toward a known nest competitor (tree swallow, Tachycineta bicolor ) did not differ significantly compared with their aggressive response to a conspecific (Duckworth, 2006).…”

Section: Discussionmentioning

confidence: 99%

Breeder aggression does not predict current or future cooperative group formation in a cooperatively breeding bird

Cusick

Cox

2021

Ethology

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In cooperatively breeding species, subordinates forgo reproduction to assist breeders in raising offspring. When cooperative breeding is facultative, breeders from the same population may differ in whether they are assisted by non‐breeding helpers. Predation risk is a major source of nest failure and assistance during nest defense is often an overlooked, yet important, way helpers assist breeders. A breeder's aggressive response to a nest predator could have important implications for whether they form cooperatively breeding groups. We investigated the hypothesis that breeder aggression toward a nest predator is related to current and future helper recruitment. We tested the prediction that less aggressive breeders were more likely to form cooperative groups, which could occur if these breeders benefit from helper assistance during nest defense. We also considered the possibility that more aggressive breeders were more likely to form cooperative groups. We assessed the effects of partnerships and tested whether aggression exhibited by breeding partners was correlated. We conducted this work in the facultative, cooperatively breeding brown‐headed nuthatch (Sitta pusilla). We measured breeder aggression in response to a taxidermy model of a nest predator to determine whether breeders’ aggression correlated with their current or future helper recruitment. We found no evidence of a sex difference in aggression among breeders and aggression scores of breeding partners were not significantly correlated. Aggression scores for both breeding males and breeding females were unrelated to whether they formed cooperative groups in the current year. We followed most of the breeding males, though not breeding females, across years and found that breeding males’ aggression scores were unrelated to helper recruitment the following year. Our results suggest that breeders’ responses to nest predators are not related to cooperative group formation in this species and that males and females showed comparable levels of aggression toward a nest predator.

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“…One source of variation that has until recently received little attention concerns the potential for personality differences among the sexes (Schuett et al 2010;Rangel-Patino et al 2018;Kralj-Fiser et al 2019). As with sexual dimorphism more generally, adaptive variation in personality may arise between the sexes either because natural selection favours divergent phenotypic optima, because of sexual selection, or because of some measure of both.…”

Section: Introductionmentioning

confidence: 99%

Variation in boldness behaviour across individuals, sexes and strains of the guppy (

2022

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The concept of animal personality is based on consistent individual differences in behaviour, yet little is known about the factors responsible for such variation. Theory based on sex-specific selection predicts sexual dimorphism in personality-related traits and, in some cases, differences in trait variances between the sexes. In this study, we examined the sources of individual variation for boldness behaviour in guppies (Poecilia reticulata). We first demonstrated heightened boldness expression in males relative to females across feral wild types, artificially selected domestic 'designer' guppies, and putative hybrids of the two. Boldness and body size covaried at the strain level but were not associated among individuals within strains. We also found high and repeatable behavioural differences among individuals (0.40 > intraclass r > 0.60) in all sex/strain groups except hybrid strain females. However, there was no evidence for the heightened inter-individual male variance anticipated for personality traits subject to certain forms of directional sex-specific selection. Domestic fish were boldest overall, and indicated the largest sex difference, which is consistent with genetic linkage between boldness and male ornamental colouration. Consistently high intrinsic variation in boldness behaviour, which extends to inbred domesticated fish, may in part underpin the invasive potential of this species.

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Personality and its variation between sexes in the black‐bellied bunchgrass lizard Sceloporus aeneus during the breeding season

Cited by 8 publications

References 40 publications

No behavioral syndromes or sex‐specific personality differences in the southern rainforest sunskink (Lampropholis similis)

No behavioral syndromes or sex‐specific personality differences in the southern rainforest sunskink (Lampropholis similis)

Breeder aggression does not predict current or future cooperative group formation in a cooperatively breeding bird

Variation in boldness behaviour across individuals, sexes and strains of the guppy (

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