Discovery of frogs of the Stumpffia hara species group (Microhylidae, Cophylinae) on Montagne d'Ambre in northern Madagascar, with description of a new species
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The stump-toed frogs of the Madagascar-endemic genus Stumpffia are mostly diminutive in size, but there is one group of comparatively large frogs within the genus, which we herein refer to as the Stumpffia hara species group. Each of the four known members of this species group is endemic to a single location of deciduous dry forest with exposed karstic limestone rock. Here, we report on the discovery of members of this species group on Montagne d'Ambre, a rainforest-covered extinct volcano in the North of Madagascar that has a rich Stumpffia fauna but has been thought to lack members of the S. hara species group until now. We found two members of the species group, one at the peak, and one in transitional and dry deciduous forest on the west and northern slopes of the mountain. The high-elevation species is new to science, and we here describe it as Stumpffia bishopi sp. nov. It occupies a highly distinct position in the phylogeny of these frogs, characterized by ≥ 9.8% uncorrected pairwise distance from all other nominal Stumpffia in a fragment of the mitochondrial 16S rRNA gene. It is also the smallest of the members of the S. hara species group. Our genetic results show that the low-elevation species is Stumpffia megsoni, constituting a range expansion of that species and considerably expanding our understanding of its morphology and ecology. We report its advertisement call for the first time. Our results highlight the importance of continued surveys of even well-sampled localities, with special attention on the high elevation sites of northern massifs and collection of voucher specimens, and how much there still remains to understand about even the largest of Madagascar's small frogs.
Original language | English |
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Journal | Evolutionary Systematics |
Volume | 6 |
Issue number | 1 |
Pages (from-to) | 21-33 |
Number of pages | 13 |
DOIs | |
Publication status | Published - 2022 |
Bibliographical note
Funding Information:
We are greatly indebted to A. Razafimanantsoa and J. Mi-harimanana, for their invaluable assistance in the field. We are also grateful to M. Franzen for providing photographs of the type material of the new species. We thank the Malagasy government (MEDD) for permits to carry out the research (permit no.191/17/MEED/SG/DGF/ DSAP/SCB.Re dated 24 July 2017) and the export of samples and voucher specimens (permit no. 032N-EA02/ MG18 dated 14 February 2018). This research was supported by Deutsche Forschungsgemeinschaft grants VE 247/13-1 to MV and MDS, and SCHE 2181/1-1 to MDS.
Publisher Copyright:
Copyright 2022 Andolalao Rakotoarison et al.
- bioacoustics, body size, montane rainforest, New species, phylogeny, Stumpffia bishopi sp. nov.
Research areas
ID: 303188560