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18 results for “Cardioglossa”
Figure 5 in A new species of Cardioglossa (Amphibia: Anura: Arthroleptidae) endemic to Mount Manengouba in the Republic of Cameroon, with an analysis of morphological diversity in the genus
Figure 5. Tadpole of Cardioglossa manengouba sp. nov. (MCZ A-138156; Gosner stage 29/30). Radiographs of tadpole in dorsal (A) and lateral (B) views. Line drawings of tadpoles in dorsal (C), ventral (D) and left lateral (E) views. Scale bar = 1 mm. Abbreviations: at – anal tube; b – beak; fp – frontoparietal bone; g – gut; hb – hindlimb bud; ip – infraoral papillae; n – naris; ove – otic vesicle endolymph; s – sphenethmoid bone; sl – supraoral labium; st – spiracular tube.
Figure 1. A in A new species of Cardioglossa (Amphibia: Anura: Arthroleptidae) endemic to Mount Manengouba in the Republic of Cameroon, with an analysis of morphological diversity in the genus
Figure 1. A, map showing topography of Cameroon and neighbouring countries. Inset shows position of Cameroon within Africa. White star indicates position of Mount Manengouba. B, topographic map of Mt Manengouba showing the two known localities (black circles) of Cardioglossa manengouba sp. nov. Nsoung, a commonly visited collecting locality, is included for reference (black square).
Figure 7 in A new species of Cardioglossa (Amphibia: Anura: Arthroleptidae) endemic to Mount Manengouba in the Republic of Cameroon, with an analysis of morphological diversity in the genus
Figure 7. Scatter plot of the second and third principal component scores. The second principal component (PC2) is plotted against the third principal component (PC3). Lines are drawn to indicate the centroid of points for each species.
Figure 3 in A new species of Cardioglossa (Amphibia: Anura: Arthroleptidae) endemic to Mount Manengouba in the Republic of Cameroon, with an analysis of morphological diversity in the genus
Figure 3. Right lateral view of the head of the holotypes of Cardioglossa manengouba sp. nov. (A; male; MCZ A-137909) and C. oreas (B; female; MHNG 1253.87). Note the small tympanum and the swelling and fold immediately above and behind the tympanum. Ventral view of the right hand of a male paratype of C. manengouba (C; MCZ A-136933) and male C. oreas (D; MCZ A-137922). Scale bar = 1 mm.
Figure 6 in A new species of Cardioglossa (Amphibia: Anura: Arthroleptidae) endemic to Mount Manengouba in the Republic of Cameroon, with an analysis of morphological diversity in the genus
Figure 6. Scatter plot of the first and second principal component scores. The second principal component (PC2) is plotted against the first principal component (PC1), an indicator of body size. Lines are drawn to indicate the centroid of points for each species.
Phylogeny of African long-fingered frogs (Arthroleptidae: Cardioglossa) reveals recent allopatric divergences in coloration
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Data from: Biogeography and evolution of body size and life history of African frogs: phylogeny of squeakers (Arthroleptis) and long-fingered frogs (Cardioglossa) estimated from mitochondrial data
The evolutionary history of living African amphibians remains poorly understood. This study estimates the phylogeny within the frog genera Arthroleptis and Cardioglossa using approximately 2400 bases of mtDNA sequence data (12S, tRNA-Valine, and 16S genes) from half of the described species. Analyses are conducted using parsimony, maximum likelihood, and Bayesian methods. The effect of alignment on phylogeny estimation is explored by separately analyzing alignments generated with different gap costs and a consensus alignment. The consensus alignment results in species paraphyly, low nodal support, and incongruence with the results based on other alignments, which produced largely similar results. Most nodes in the phylogeny are highly supported, yet several topologies are inconsistent with previous hypotheses. The monophyly of Cardioglossa and of miniature species previously assigned to Schoutedenella was further examined using Templeton and Shimodaira–Hasegawa tests. Cardioglossa monophyly is rejected and C. aureoli is transferred to Arthroleptis. These tests do not reject Schoutedenella monophyly, but this hypothesis receives no support from non-parametric bootstrapping or Bayesian posterior probabilities. This phylogeny provides a framework for reconstructing historical biogeography and analyzing the evolution of body size and life history. Direct development and miniaturization appear at the base of Arthroleptis phylogeny concomitant with a range expansion from Central Africa to throughout most of sub-Saharan Africa.
Data from: Two new species of long-fingered frogs of the genus Cardioglossa (Anura: Arthroleptidae) from Central African rainforests
We describe two new frog species of Cardioglossa (Family Arthroleptidae) from Central Africa. The new species are found in the rainforests of western-central Democratic Republic of the Congo and the Republic of the Congo near the Gabonese border, respectively. We demonstrate that these species are morphologically and genetically distinct from each other and all other species of Cardioglossa. Both new species lack the dorsal hour-glass pattern present in many species of the genus, but they can be distinguished from each other and related species by distinctive colour patterns on their lateral surfaces and extremities. Both new species most closely resemble C. gratiosa, which occurs in the Atlantic coastal forests extending from Cameroon through Gabon. The new species can be differentiated from C. gratiosa by the absence of black transverse bars on all limbs or by distinctive lateral colouration. Analysis of mitochondrial ribosomal 16S DNA sequences reveals low to moderate levels (1.9–7.5%) of divergence between these new species and closely related species of Cardioglossa. The floodplains of the Congo and Ubangi Rivers may be important geographic barriers for many of these species. The occurrence of these two new lowland species in the Congo Basin reveals that the distribution and diversity of Cardioglossa in this region was underestimated. In addition, we elevate C. nigromaculata inornata to species-level status, based in part on newly available colour photographs from 1950 of specimens from the only known locality.
FIGURE 3 in The distribution of the Bururi Long-fingered Frog (Cardioglossa cyaneospila, family Arthroleptidae), a poorly known Albertine Rift endemic
FIGURE 3. Habitat at various localities for which C. cyaneospila is recorded. A. Along Rurezi Stream at eastern edge of Bururi Nature Reserve, Burundi (9 December 2011; photo: DCB). B and C from color glass slides deposited at the California Academy of Sciences (San Francisco, CA, USA). B. Luiko, DRC, verbatim information on slide: 'LUIKO 1850 m; 29-VI- 1950' (photo: R.F. Laurent). C. Mwana, DRC, verbatim information on slide: 'MWANA 1650m; 27-VII-50' (photo: R.F. Laurent); note tree ferns of the family Cyatheaceae in C. D. Within Nyungwe Forest National Park, Rwanda (18 June 2016; photo: CB).
FIGURE 2 in The distribution of the Bururi Long-fingered Frog (Cardioglossa cyaneospila, family Arthroleptidae), a poorly known Albertine Rift endemic
FIGURE 2. Four recent records of Cardioglossa cyaneospila. A. Unvouchered individual photographed in June 2009 from near Mubwindi Swamp in Bwindi Impenetrable National Park, Uganda (photo A. Bowley). B. Male (CAS 250950) collected in December 2011 in Bururi Forest Reserve in Burundi (photo: DCB). C. Female (UTEP 21433) collected in November 2015 in Nzovu sector of Kahuzi-Biega National Park in DRC (photo: G. Mitamba). D. Unvouchered individual in June 2016 from Nyungwe Forest National Parik, Rwanda (photo C. Boix).
FIGURE 1 in The distribution of the Bururi Long-fingered Frog (Cardioglossa cyaneospila, family Arthroleptidae), a poorly known Albertine Rift endemic
FIGURE 1. Distribution of Cardioglossa cyaneospila based on the type locality (star), other published localities (squares), and new records (circles) from either recent field research or various historical records (see Table 1). The environmental niche model (ENM) based on analysis using Maxent is shown in red, representing the fundamental niche (approximately 37,670 km2). Country abbreviations are as follows: BI, Burundi; CD, Democratic Republic of Congo; RW, Rwanda; TZ, Tanzania; UG, Uganda.
FIG. 3 in Phylogeny of African Long-Fingered Frogs (Arthroleptidae: Cardioglossa) Reveals Recent Allopatric Divergences in Coloration
FIG. 3. Chronogram displaying divergence times within Cardioglossa and the Arthroleptidae based on the concatenated dataset. Bars at nodes represent 95% highest posterior density estimates and asterisk (*) denotes the nodes anchored with a secondary calibration. All nodes have support values.0.95 unless otherwise noted. In addition, Bayesian species delimitation probabilities are depicted in the box at each node within Cardioglossa under three different combinations of priors: left, large population sizes (Ne; H ¼ 3, 0.02) with deep divergences (s ¼ 3, 0.3); center, small Ne (H ¼ 3, 0.0002) with shallow divergences (s ¼ 3, 0.003); right, large Ne (H ¼ 3, 0.02) with shallow divergences (s ¼ 3, 0.003). Support values below 0.95 are colored red. See Data Accessibility for tree file.
FIG. 1 in Phylogeny of African Long-Fingered Frogs (Arthroleptidae: Cardioglossa) Reveals Recent Allopatric Divergences in Coloration
FIG. 1. Map showing the currently recognized distributions (range polygons based on IUCN, 2020) of the 18 species of Cardioglossa in this study showing the locations of our samples. For details on sampling, see Supplemental Table 1 (see Data Accessibility).
FIG. 2 in Phylogeny of African Long-Fingered Frogs (Arthroleptidae: Cardioglossa) Reveals Recent Allopatric Divergences in Coloration
FIG. 2. Maximum likelihood phylogeny of Cardioglossa based on the multilocus concatenated, partitioned dataset of mitochondrial and nuclear data. A black dot at each node indicates high support (e.g., Bayesian posterior probability.0.95, maximum likelihood bootstrap.70). Tip labels of individuals used for divergence time analysis are indicated in boldface. Photographs are not scaled to size. (Photo credits: D.C.B.: C. melanogaster, C. oreas manengouba, C. pulchra, C. schioetzi; M.B.: C. annulata, C. escalerae, C. leucomystaX 1; Brian Freiermuth: C. leucomystaX 2, C. oreas oreas; E.G.: C. congolia, C. cyaneospila; V.G.: C. alsco; M.H.: C. nigromaculata, C. Venusta; Greg Jongsma: C. gracilis; P.J.M.: C. nigromaculata 'Bioko'; Dan Portik: C. elegans, C. occidentalis; M.-O.R.: C. gratiosa, C. trifasciata; images available via https://doi.org/10.7479/3yje-r341). See Data Accessibility for tree file.
Data from: Biogeography and evolution of body size and life history of African frogs: phylogeny of squeakers (Arthroleptis) and long-fingered frogs (Cardioglossa) estimated from mitochondrial data
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Data from: Two new species of long-fingered frogs of the genus Cardioglossa (Anura: Arthroleptidae) from Central African rainforests
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Figure 2. A in A new species of Cardioglossa (Amphibia: Anura: Arthroleptidae) endemic to Mount Manengouba in the Republic of Cameroon, with an analysis of morphological diversity in the genus
Figure 2. A, type locality of Cardioglossa manengouba sp. nov. in the montane forests of Mount Manengouba (approximately 2100 m above sea level). B, photograph of male paratype (MCZ A-137908) of C. manengouba in life.
Figure 4 in A new species of Cardioglossa (Amphibia: Anura: Arthroleptidae) endemic to Mount Manengouba in the Republic of Cameroon, with an analysis of morphological diversity in the genus
Figure 4. Scatter plot depicting mean length of third manual digit vs. mean snout–vent length for male and female of Cardioglossa species; data are ln-transformed. Males of both Cardioglossa manengouba sp. nov. and C. oreas are the only species examined in which no mature males have third manual digits absolutely longer than those of adult females of the same species. The mean value for males of C. occidentalis is somewhat low due to the inclusion of a specimen that may not be fully mature as it exhibits only weakly developed manual digital spines and a relatively short third manual digit.
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