Multiple paternity in the red-eyed treefrog Agalychnis callidryas (Cope)


  • This paper represents a portion of the doctoral research of Christian d'Orgeix on multiple paternity in anurans and the behavioural ecology of the redeyed tree-. Bruce Turner's lab oratory studies the evolutionary genetics of vertebrate populations primarily with molecular techniques.

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DNA fingerprinting of tadpoles from two different ‘one female-two male’ matings of the red-eyed treefrog, Agalychnis callidryas, revealed multiple paternity of offspring. Offspring were assigned paternity based on bands shared with the putative father, but not shared between putative fathers or with the mother. Paternity was split 44/56% and 36/64% in two matings. These results do not support a hypothesis of sperm priority in access to unfertilized eggs by primary males. Multiple paternity may be commonplace in species of anurans with matings by multiple males.