figshare
Browse

File(s) not publicly available

The role of body size in competition and mate choice in an agamid with female-biased size dimorphism

journal contribution
posted on 2023-05-16, 20:55 authored by Jemina Stuart-SmithJemina Stuart-Smith, Swain, R, Erik WapstraErik Wapstra
Competition and mate choice are fundamentally important components of social systems. We investigated intra-sexual competition and inter-sexual competition (mate choice) in Rankinia diemensis, an agamid lizard with female-biased size dimorphism. We examined intra-sexual interactions during contests and mate choice in relation to body size for both males and females. In male-male competition trials, proportions of two display types differed depending on body size, with more tail flicks produced by bigger males, and more hand-waves displayed by smaller males. These behaviours hold particular biological significance for agamid lizards; tail-flicks convey aggressiveness and, therefore, dominance, while hand-waves often denote submissiveness. In female-female competition trials, a greater difference in body size between the two conspecifics resulted in the larger female directing more pushes towards the smaller female. This female competition may be important in the social system and could be involved in resource defence. We found no indication of size-based mate choice for males or females. This suggests mate preferences may not be based on body size in this species. This may be linked to female-biased size dimorphism in this species, but it also supports previous studies that have failed to demonstrate female choice in reptiles. © 2007 Brill Academic Publishers.

History

Publication title

Behaviour

Volume

144

Issue

9

Pagination

1087-1102

ISSN

0005-7959

Department/School

School of Natural Sciences

Publisher

Brill Academic Publishers

Place of publication

Netherlands

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the environmental sciences

Usage metrics

    University Of Tasmania

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC