Quantitative analysis of courtship and mating behaviours in the big-headed turtle, Platysternon megacephalum
Turtles are an excellent group for understanding the theory of sexual selection, sexual dimorphism and the evolution of courtship behaviour. Asia has a rich diversity of turtle species, but quantitative analysis of courtship behaviour has only been conducted on a single species. This
study quantitatively analysed courtship and mating behaviours of captive Platysternon megacephalum to serve as a basis for future comparisons with other freshwater turtles. A total of 259 courtship behaviour sequences stemming from 66 pairings between 12 males and 24 females were analysed.
Seven (approaching, sniffing, chasing, resting, mounting, subduing female, copulating) and three mutually exclusive motor patterns (fleeing, mating resistance, mating acceptance) were performed by males and females, respectively. The temporal sequences of courtship and mating behaviours were
analysed using Chi-square tests and Kappa analyses, from which a flow diagram was constructed. Male courtship display patterns involved tactile, visual and olfactory cues for conspecific and sexual recognition. In response, females may have emitted olfactory cues regarding their sex and reproductive
status. Male P. megacephalum exhibited biting, but no head movement or foreclaw display in courtship, which differs from other freshwater turtles. This study provides the first record of male biting during courtship behaviour in an Asian turtle species. Recommendations for captive breeding
of the endangered species P. megacephalum are presented.
Keywords: ASIA; BEHAVIOURAL SEQUENCES; BITING; CINEMATOGRAPHIC TECHNIQUES; KAPPA ANALYSIS; PLATYSTERNIDAE
Document Type: Research Article
Publication date: 01 April 2016
- The Herpetological Journal is an international scientific journal that publishes papers on the natural history of amphibians and reptiles. Experimental, observational and theoretical studies are published along with reviews and book reviews. Faunistic lists, letters and results of general surveys are not published unless they shed light on herpetological problems of wider significance.
- Editorial Board
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Membership Information
- Information for Advertisers
- Ingenta Connect is not responsible for the content or availability of external websites
- Access Key
- Free content
- Partial Free content
- New content
- Open access content
- Partial Open access content
- Subscribed content
- Partial Subscribed content
- Free trial content