Skip to main content
placeholder image

Synchronous polyandry and multiple paternity in the frog Crinia georgiana (Anura: Myobatrachidae)

Journal Article


Abstract


  • Multiple paternity has rarely been reported in anuran amphibians, with only three previous documented examples. For the Australian frog Crinia georgiana, we observed synchronous polyandry in an average of 44% of matings observed at four field sites. This suggests matings involving more than one male are common in this species. One to eight males were observed in amplectant groups with second males amplexed ventrally. Genetic analyses, using allozyme electrophoresis, of offspring from two matings indicated that at least two of three possible males fathered offspring. Third males were unlikely to have shared paternity, explained by their inappropriate position during amplexus. Multiple paternity may be more common in frogs than has been reported.

Publication Date


  • 1999

Citation


  • Dale Roberts, J., Standish, R. J., Byrne, P. G., & Doughty, P. (1999). Synchronous polyandry and multiple paternity in the frog Crinia georgiana (Anura: Myobatrachidae). Animal Behaviour, 57(3), 721-726. doi:10.1006/anbe.1998.1019

Scopus Eid


  • 2-s2.0-0033104523

Start Page


  • 721

End Page


  • 726

Volume


  • 57

Issue


  • 3

Abstract


  • Multiple paternity has rarely been reported in anuran amphibians, with only three previous documented examples. For the Australian frog Crinia georgiana, we observed synchronous polyandry in an average of 44% of matings observed at four field sites. This suggests matings involving more than one male are common in this species. One to eight males were observed in amplectant groups with second males amplexed ventrally. Genetic analyses, using allozyme electrophoresis, of offspring from two matings indicated that at least two of three possible males fathered offspring. Third males were unlikely to have shared paternity, explained by their inappropriate position during amplexus. Multiple paternity may be more common in frogs than has been reported.

Publication Date


  • 1999

Citation


  • Dale Roberts, J., Standish, R. J., Byrne, P. G., & Doughty, P. (1999). Synchronous polyandry and multiple paternity in the frog Crinia georgiana (Anura: Myobatrachidae). Animal Behaviour, 57(3), 721-726. doi:10.1006/anbe.1998.1019

Scopus Eid


  • 2-s2.0-0033104523

Start Page


  • 721

End Page


  • 726

Volume


  • 57

Issue


  • 3