Understanding how and why consistent behavioural traits (i.e. animal personality) vary between individuals, and identifying the mechanisms that underlie such variation, is a key focus in behavioural and evolutionary ecology. In many animals, male and female behaviour often diverges in response to different selection pressures and life history trajectories post-maturation. Despite this, animal personality studies spanning several personality traits rarely consider both sexes, ignoring the very strong possibility that key components of personality, behavioural consistency and behavioural correlations, may vary between males and females. Furthermore, such variation can play an important role in ecological processes such as mediating the invasion propensity of a species. Here, we took an animal personality approach to studying the behaviour of a repeatedly successful invasive species, the delicate skink (Lampropholis delicata). We investigated whether male and female delicate skinks differed in their personality across five behavioural traits, as sex differences in behaviour could provide a mechanism that explains the delicate skink’s successful invasion history via accidental introductions. We found that females were more social than males and showed a trend towards being faster explorers. Both sexes shared the same behavioural syndrome suggesting that it is evolutionarily stable and not easily decoupled by selection. Specifically, skinks that were consistently more active explored environments faster and were more likely to bask with other skinks. In sum, we found limited evidence of sex-specific personality in the delicate skink suggesting that both sexes might have an equal invasion potential. More broadly, our study highlights the need to consider whether, in fact, differences in personality are important in mediating a species propensity to invade.
Males and females likely differ in their personality because they often face different selection pressures when they are adults. An individual’s personality may also determine how likely they are to invade novel environments. Thus, we compared personality traits of males and females in an invasive species, the delicate skink, for what it may reveal about the potential mechanisms that drive the species successful invasion history. We found that females were more social and showed a trend towards being faster explorers than males. Both sexes had positive correlations between activity, exploratory and social behaviour suggesting the presence of a non-sex-specific behavioural syndrome. Our results suggest limited behavioural variation between the sexes and that both sexes may have an equal invasion potential.
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Baird TA, Acree MA, Sloan CL (1996) Age and gender-related differences in the social behavior and mating success of free-living collared lizards, Crotaphytus collaris. Copeia 1996:336–347
Bell AM (2012) Randomized or fixed order for studies of behavioral syndromes? Behav Ecol 24:16–20
Bell AM, Hankison SJ, Laskowski KL (2009) The repeatability of behaviour: a meta-analysis. Anim Behav 77:771–783
Biro PA, Stamps JA (2010) Do consistent individual differences in metabolic rate promote consistent individual differences in behavior? Trends Ecol Evol 25:653–659
Blumstein D, Evans C, Daniels J (2006) JWatcher 1.0, http://www.jwatcher.ucla.edu
Carazo P, Noble DWA, Chandrasoma D, Whiting MJ (2014) Sex and boldness explain individual differences in spatial learning in a lizard. Proc R Soc B 281:20133275
Carere C, Gherardi F (2013) Animal personalities matter for biological invasions. Trends Ecol Evol 28:5–6
Chapman BB, Hegg A, Ljungberg P (2013) Sex and the syndrome: individual and population consistency in behaviour in rock pool prawn Palaemon elegans. PLoS One 8:e59437
Chapple DG, Wong BBM (2016) The role of behavioural variation across different stages of the introduction process. In: Weis JS, Sol D (eds) Biological invasions and animal behaviour. Cambridge University Press, Cambridge
Chapple DG, Simmonds SM, Wong BBM (2011) Know when to run, know when to hide: can behavioral differences explain the divergent invasion success of two sympatric lizards? Ecol Evol 1:278–289
Chapple DG, Simmonds SM, Wong BBM (2012) Can behavioral and personality traits influence the success of unintentional species introductions? Trends Ecol Evol 27:57–64
Chapple DG, Miller KA, Kraus F, Thompson MB (2013a) Divergent introduction histories among invasive populations of the delicate skink (Lampropholis delicata): has the importance of genetic admixture in the success of biological invasions been overemphasized? Divers Distrib 19:134–146
Chapple DG, Whitaker AH, Chapple SN, Miller KA, Thompson MB (2013b) Biosecurity interceptions of an invasive lizard: origin of stowaways and human-assisted spread within New Zealand. Evol Appl 6:324–339
Chapple DG, Miller KA, Chaplin K, Barnett L, Thompson MB, Bray RD (2014) Biology of the invasive delicate skink (Lampropholis delicata) on Lord Howe Island. Aust J Zool 62:498–506
Chapple DG, Knegtmans J, Kikillus H, van Winkel D (2016) Biosecurity of exotic reptiles and amphibians in New Zealand: building upon Tony Whitaker’s legacy. J Roy Soc New Zeal 46:66–84
Cote J, Clobert J (2007) Social personalities influence natal dispersal in a lizard. Proc R Soc Lond B 274:383–390
Cote J, Dreiss A, Clobert J (2008) Socail personality trait and fitness. Proc R Soc Lond B 275:2851–2858
Cote J, Fogarty S, Weinersmith K, Brodin T, Sih A (2010) Personality traits and dispersal tendency in the invasive mosquitofish (Gambusia affinis. Proc R Soc B 277:1571–1579
Cote J, Fogarty S, Brodin T, Weinersmith K, Sih A (2011) Personality-dependent dispersal in the invasive mosquitofish: group composition matters. Proc R Soc Lond B 278:1670–1678
Cromie GL, Chapple DG (2012) Impact of tail loss on the behaviour and locomotor performance of two sympatric Lampropholis skink species. PLoS One 7:e34732
David M, Dall SR (2016) Unravelling the philosophies underlying ‘animal personality’ studies: a brief re-appraisal of the field. Ethology 122:1–9
Dingemanse NJ, Dochtermann N (2012) Quantifying individual variation in behaviour: mixed effect modelling approaches. J Anim Ecol 82:39–54
Dingemanse NJ, Both C, van Noordwijk AJ, Rutten AL, Drent PJ (2003) Natal dispersal and personalities in great tits (Parus major). Proc R Soc Lond B 270:741–747
Dochtermann NA, Dingemanse NJ (2013) Behavioral syndromes as evolutionary constraints. Behav Ecol 24:806–811
Downes S (2001) Trading heat and food for safety: costs of predator avoidance in a lizard. Ecology 82:2870–2881
Downes S, Hoefer AM (2004) Antipredatory behaviour in lizards: interactions between group size and predation risk. Anim Behav 67:485–492
Downes S, Shine R (2001) Why does tail loss increase a lizard’s later vulnerability to snake predators? Ecology 82:1293–1303
Forsman A (2014) Effects of genotypic and phenotypic variation on establishment are important for conservation, invasion, and infection biology. Proc Natl Acad Sci U S A 111:302–307
Fresneau N, Kluen E, Brommer JE (2014) A sex-specific behavioral syndrome in a wild passerine. Behav Ecol 25:359–367
Fryxell DC, Arnett HA, Apgar TM, Kinnison MT, Palkovacs EP (2015) Sex ratio variation shapes the ecological effects of a globally introduced freshwater fish. Proc R Soc B 282:20151970
Gelman A, Hill J (2007) Data analysis using regression and multilevel/hierarchial models. Cambridge University Press, Cambridge
Gyuris E, Feró O, Tartally A, Barta Z (2011) Individual behaviour in firebugs (Pyrrhocoris apterus. Proc R Soc Lond B 278:628–633
Hadfield JD (2010) MCMC methods for multi-response generalized linear mixed models: the MCMCglmmm R package. J Stat Softw 33:1–22
Hedrick AV, Kortet R (2012) Sex differences in the repeatability of boldness over metamorphosis. Behav Ecol Sociobiol 66:407–412
Jackson DA (1993) Stopping rules in principal components analysis: a comparison of heuristical and statistical approaches. Ecology 74:2204–2214
Kraus J (2015) Impacts from invasive reptiles and amphibians. Annu Rev Ecol Evol S 46:75–97
Martin J, Lopez P (1999) When to come out from a refuge: risk-senstive and state-dependent decisions in an alpine lizard. Behav Ecol 10:487–492
Michelangeli M, Wong BBM, Chapple DG (2016) It’s a trap: sampling bias due to animal personality is not always inevitable. Behav Ecol 27:62–67
Miller TE, Inouye BD (2013) Sex and stochasticity affect range expansion of experimental invasions. Ecol Lett 16:354–361
Moule H, Michelangeli M, Thompson MB, Chapple DG (2016) The influence of urbanization on the behaviour of an Australian lizard and the presence of an activity-exploratory behavioural syndrome. J Zool 298:103–111
Nakagawa S, Gillespie DOS, Hatchwell BJ, Burke T (2007) Predictable males and unpredictable females: sex difference in repeatability of parental care in a wild bird population. J Evol Biol 20:1674–1681
Olsson M, Shine R (2003) Female-biased natal and breeding dispersal in an alpine lizard, Niveoscincus microlepidotus. Biol J Linn Soc 79:277–283
Pardini AT, Jones CS, Noble LR, et al. (2001) Sex-biased dispersal of great white sharks. Nature 412:139–140
Piyapong C, Krause J, Chapman BB, Ramnarine IW, Louca V, Croft DP (2010) Sex matters: a social context to boldness in guppies (Poecilia reticulata. Behav Ecol 21:3–8
Pruitt JN, Riechert SE (2009) Sex matters: sexually dimorphic fitness consequences of a behavioural syndrome. Anim Behav 78:175–181
Pruitt JN, Riechert SE, Jones TC (2008) Behavioural syndromes and their fitness consequences in a socially polymorphic spider, Anelosimus studiosus. Anim Behav 76:871–879
Pusey AE (1987) Sex-biased dispersal and inbreeding avoidance in birds and mammals. Trends Ecol Evol 2:295–299
R Development Core Team (2012) R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna (Austria) http://www.R-project.org
Rehage JS, Sih A (2004) Dispersal behaviour, boldness, and the link to invasiveness: a comparison of four Gambusia species. Biol Invasions 6:379–391
Rodríguez-Prieto I, Martín J, Fernández-Juricic E (2011) Individual variation in behavioural plasticity: direct and indirect effects of boldness, exploration and sociability on habituation to predators in lizards. Proc R Soc Lond B 278:266–273
Schuett W, Dall SRX (2009) Sex differences, social context and personality in zebra finches, Taeniopygia guttata. Anim Behav 77:1041–1050
Schuett W, Tregenza T, Dall SRX (2010) Sexual selection and animal personality. Biol Rev 85:217–246
Shine R (2003) Effects of pregnancy on locomotor performance: an experimental study on lizards. Oecologia 136:450–456
Sih A, Bell AM (2008) Insights for behavioral ecology from behavioral syndromes. Adv Stud Behav 38:227–281
Sih A, Bell AM, Johnson JC (2004) Behavioral syndromes: an ecological and evolutionary overview. Trends Ecol Evol 19:372–378
Sih A, Cote J, Evans M, Fogarty S, Pruitt J (2012) Ecological implications of behavioural syndromes. Ecol Lett 15:278–289
Strickland K, Gardiner R, Schultz AJ, Frère CH (2014) The social life of eastern water dragons: sex differences, spatial overlap and genetic relatedness. Anim Behav 97:53–61
Tingley R, Thompson MB, Hartley S, Chapple DG (2016) Patterns of niche filling and expansion across the invaded ranges of an Australian lizard. Ecography 39:270–280
Wolf M, Weissing FJ (2010) An explanatory framework for adaptive personality differences. Philos T Roy Soc B 365:3959–3968
Wolf M, Weissing FJ (2012) Animal personalities: consequences for ecology and evolution. Trends Ecol Evol 27:452–461
York JR, Baird TA, Haynie ML (2014) Unexpected high fitness payoff of subordinate social tactics in male collared lizards. Anim Behav 91:17–25
Zar JH (1999) Biostatisitcal analysis. Prentice-Hall, Upper Saddle River, New Jersey
We would like to thank T. Dexter and C. Goulet for their assistance during fieldwork and two anonymous reviewers for their constructive feedback during the revision process.
Research and animal welfare care was approved by the Animal Ethics Committee of Monash University (BSCI/2013/19). This research was supported by the Ecological Society of Australia (grant awarded to M. M). There were no conflicts of interest.
Informed consent was obtained from all individual participants included in the study.
Communicated by S. J. Downes
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Michelangeli, M., Chapple, D.G. & Wong, B.B.M. Are behavioural syndromes sex specific? Personality in a widespread lizard species. Behav Ecol Sociobiol 70, 1911–1919 (2016). https://doi.org/10.1007/s00265-016-2197-9
- Life history
- Behavioural type
- Invasion syndrome