TL;DR: Mitochondrial 12S rRNA sequences were used to construct a phylogeny for the African treefrog family, Hyperoliidae, and shows clearly that Phylyctimantis groups with Kassina as it did in Drewes' morphological tree and that Tachycnemis groups closely with Heterisxalus, a relationship not suggested by the morphological data.
TL;DR: Female painted reed frogs, Hyperolius marmoratus, were subjected to two-choide discrimination experiments to determine whether temporal overlap in the presented stimuli affects frequency preferences, showing that females preferred low frequency calls when the stimuli were presented alternately.
TL;DR: In this article, the phylogeny of treefrogs of the family Hyperoliidae was studied using sequences of fragments of the mitochondrial 16Sand 12SrRNA and cytochrome b genes.
Abstract: Treefrogs of the family Hyperoliidae are distributed in Africa, Madagascar and the Seychelles. In this study, their phylogeny was studied using sequences of fragments of the mitochondrial 16Sand 12SrRNA and cytochrome b genes. The molecular data strongly confirmed monophyly of the subfamily Hyperoliinae but indicated that the genus Leptopelis (subfamily Leptopelinae) is more closely related to species of the African family Astylosternidae. The Seychellean genus Tachycnemis was the sister group of the Malagasy Heterixalus in all molecular analyses; this clade was deeply nested within the Hyperoliinae. A re-evaluation of the morphological data did not contradict the sister group relationships of these two genera. The subfamily Tachycneminae is therefore considered as junior synonym of the Hyperoliinae. In addition, the molecular analysis did not reveal justification for a subfamily Kassininae. Biogeographically, the origin of Malagasy hyperoliids may not be well explained by Mesozoic vicariance in the context of Gondwana breakup, as indicated by the low differentiation of Malagasy hyperoliids to their African and Seychellean relatives and by analysis of current distribution patterns.