Behaviour of the suspected lizard competitors Anolis sagrei and Anolis carolinensis: an experimental test for behavioural interference

Richard R. Tokarz, John W. Beck

Research output: Contribution to journalArticle

24 Scopus citations


Intra- and interspecific encounters were staged in the laboratory using adult brown anoles Anolis sagrei, and green anoles Anolis carolinensis, two species believed to be in competition in southern Florida. Agonistic behaviour of resident males toward heterospecifics was much less intense than that of resident males toward conspecifics. This suggests that behavioural interference between males is unlikely to be an important component of competition between these species. In staged encounters between males and females, courtship behaviour was usually observed only in conspecific encounters, and copulation was observed exclusively in conspecific encounters. This suggests that copulation between these species is uncommon under natural conditions.

Original languageEnglish (US)
Pages (from-to)722-734
Number of pages13
JournalAnimal Behaviour
Issue number3
StatePublished - Jun 1987


ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology

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