Sociality in lizards: family structure in free-living King's Skinks Egernia kingii from southwestern Australia

C. Masters, R. Shine*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)
839 Downloads (Pure)

Abstract

King's Skinks Egernia kingii are large viviparous scincid lizards from southwestern Australia. Although some other species within the genus Egernia are known to exhibit complex sociality, with long-term associations between adults and their offspring, there are no published records of such behaviour for E. kingii. Ten years' observations on a single family of lizards (a pair of adults plus six successive litters of their offspring) in a coastal suburban backyard 250 km south of Perth also revealed a very stable adult pair-bond in this species. The female produced litters of 9 to 11 offspring in summer or autumn at intervals of one to three years. In their first year of life, neonates lived with the adult pair and all the lizards basked together; in later years the offspring dispersed but the central shelter-site contained representatives of up to three annual cohorts as well as the parents. Adults tolerated juveniles (especially neonates) and their presence may confer direct parental protection: on one occasion an adult skink attacked and drove away a tigersnake Notechis scutatus that ventured close to the family's shelter-site. Although our observations are based only on a single pair of lizards and their offspring, they provide the most detailed evidence yet available on the complex family life of these highly social lizards.

Original languageEnglish
Pages (from-to)377-380
Number of pages4
JournalAustralian Zoologist
Volume32
Issue number3
DOIs
Publication statusPublished - 2003
Externally publishedYes

Bibliographical note

Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • Behaviour
  • Egernia kingii
  • Lizard
  • Parental care
  • Reptile
  • Scincidae
  • Social organisation

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