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A new species of Hyalinobatrachium (Anura: Centrolenidae) from the Amazonian slopes of the central Andes with comments on the diversity of the genus in the area
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Evolutionary Biology.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Evolutionary Biology.
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2009 (English)In: Zootaxa, ISSN 1175-5326, no 2143, 24-44 p.Article in journal (Refereed) Published
Abstract [en]

We describe a new species of Hyalinobatrachium from the Amazonian   slopes of the Andes in Peru and Bolivia on the basis of morphological,   bioacoustic and genetic characteristics. Hyalinobatrachium carlesvilai   sp. nov. can be distinguished from other species of Hyalinobatrachium   by the combination of the following characters: (1) truncate snout in   dorsal and lateral view; (2) white pericardium; (3) enameled dorsal,   tarsal and cloacal folds; (4) hand webbing formula III 2(-) -1(+) IV;   (5) iris cream; (6) advertisement call consisting of a single,   frequency-modulated note with a pulsed section followed by a tonal   section. The new species had been previously identified as   Hyalinobatrachium munozorum and H. bergeri. The advertisement call of   the new species was previously assigned to H. bergeri. Here we describe   the previously unknown call of Hyalinobatrachium bergeri. Additionally,   we study the taxonomic status of H. lemur and H. pellucidum and place   the former as synonym of the later. We extend the distribution of H. pellucidum to Departamento Cusco in southern Peru.

Place, publisher, year, edition, pages
2009. no 2143, 24-44 p.
Keyword [en]
Bioacoustics, Centrolenid frogs, Cryptic species, Glassfrogs, Hyalinobatrachium bergeri, Hyalinobatrachium lemur, Hyalinobatrachium munozorum, Hyalinobatrachium pellucidum, mitochondrial DNA, Synonymy, Taxonomy
National Category
Biological Sciences
URN: urn:nbn:se:uu:diva-100922ISI: 000267615900002OAI: oai:DiVA.org:uu-100922DiVA: diva2:211274
Available from: 2009-04-13 Created: 2009-04-13 Last updated: 2010-07-19Bibliographically approved
In thesis
1. Species Limits, and Evolutionary History of Glassfrogs
Open this publication in new window or tab >>Species Limits, and Evolutionary History of Glassfrogs
2009 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Recognizing the mechanisms of speciation and the limits of species is essential to understand the origin of biodiversity and how to conserve it. The general aims of my investigations during my doctoral studies were two-fold: to study evolutionary patterns and processes, and to provide specific and superspecific taxonomic classifications that try to reflect evolutionary history. I have focused my research on anurans in their biodiversity hotspot, the American Tropics.

I have used morphological, behavioral (mating calls), and genetic (DNA sequences) characters to study species boundaries between frogs of the genus Pristimantis and the family Centrolenidae (glassfrogs). The results show that the exclusive use of single lines of evidence or the application of arbitrary thresholds impair and bias our ability to recognize new species and limit the possibility to understand evolutionary processes. Only an integrative approach combining every source of evidence provides the necessary feedback to discover all species and test their identity by comparing independent sets of data. This approach further allows identifying those species that probably represent stable comparative units (well supported species hypotheses) and to flag taxa that require further assessment.

Phylogenetic reconstructions based on seven nuclear and mitochondrial genes for about 100 species of glassfrogs revealed that previous hypotheses of relationships were mislead by rampant convergent evolution at the phenotypic level. None of the previously suggested classifications fit with the reconstructed evolutionary history. Consequently, we proposed a new classification consistent with this phylogeny.

I also studied the tempo and mode of diversification among glassfrogs. Based on sequences from ten genes in 87 species, I estimated species divergence times, age-range correlation between sister species, and reconstructed ancestral areas and dispersal/vicariance events. The results revealed a complex model of diversification where geographical isolation seems to be the dominant scenario for speciation and only clades of altitudinal generalists have been able to spread across the Neotropical rainforests.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2009. 55 p.
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1651-6214 ; 642
Amphibia, Anura, Biogeography, Centrolenidae, Diversification, Frogs, Molecular Phylogenetics, Neotropics, Pristimantis, Speciation, Species, Systematics, Taxonomy
National Category
Biological Systematics
Research subject
Systematic Zoology
urn:nbn:se:uu:diva-100923 (URN)978-91-554-7515-4 (ISBN)
Public defence
2009-05-26, Zootissalen, EBC, Villavägen 9, Uppsala, 09:00 (English)
Available from: 2009-05-05 Created: 2009-04-13 Last updated: 2009-05-28Bibliographically approved

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