Karl-Heinz Jungfer

Karl-Heinz Jungfer
Senckenberg Research Institute · Museum für Naturkunde

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91
Publications
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Publications

Publications (91)
Article
The South American and West Indian Casque-headed Treefrogs (Hylidae: Hylinae: Lophyohylini) include 85 species. These are notably diverse in morphology (e.g. disparate levels of cranial hyperossification) and life history (e.g. different reproductive modes, chemical defences), have a wide distribution, and occupy habitats from the tropical rainfore...
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The Polish botanist Józef Warszewicz (1812−1866) travelled extensively in Central and South America between 1844 and 1853 and, apart from plants, also collected frogs subsequently used to describe new species. Several of his locality data proved to be erroneous and especially species purportedly from western Panama were later rediscovered in South...
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Abstract A new species of treefrog of the genus Osteocephalus is described from the Rio Abacaxis, a southern tributary of the Amazonas in the state of Amazonas, Brazil. This member of the O. buckleyi group is characterized by green dorsal colouration with irregular blotches of various shades of brown, light venter with tan spots and bold dark marki...
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Spiny-backed tree frogs of the genus Osteocephalus are conspicuous components of the tropical wet forests of the Amazon and the Guiana Shield. Here, we revise the phylogenetic relationships of Osteocephalus and its sister group Tepuihyla, using up to 6134bp of DNA sequences of nine mitochondrial and one nuclear gene for 338 specimens from eight cou...
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A new species of Osteocephalus (Osteocephalus duellmani) is described from the Ecuadorian part of the Cordillera del Cóndor, an isolated sub-Andean mountain range along the Ecuadorian–Peruvian border. Apparently an endemic to these mountains, it is one of the few species in the genus reaching an altitude of almost 2000 m. It is distinguished from o...
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We describe the tadpoles of Hypsiboas melanopleura and H. aguilari and compare them with the tadpoles of other species in the Hypsiboas pulchellus group. The description of the tadpole of H. aguilari is based on an individual at Gosner Stage 29 and that of H. melanopleura on an individual at Gosner Stage 28. Both tadpoles have a labial tooth row fo...
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Phylogenetic analyses of data derived from one mitochondrial gene and one nuclear gene show that the five species of small marsupial frogs currently recognized as Flectonotus are in fact two distinct and not closely related lineages. This conclusion is strongly supported by reproductive behavior and morphological characters. Thus, we recognize the...
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Phylogenetic analyses of data derived from one mitochondrial gene and one nuclear gene show that the five species of small marsupial frogs currently recognized as Flectonotus are in fact two distinct and not closely related lineages. This conclusion is strongly supported by reproductive behavior and morphological characters. Thus, we recognize the...
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The western Amazonian treefrog Dendropsophus bifurcus (Andersson, 1945) is not as widespread as previously thought. Specimens from Bolivia and southern Peru, previously assigned to that species, are distinct and differ in calls, colouration and behaviour. The new species described here can be most easily distinguished from D. bifurcus from the nort...
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We describe a new species of the Hypsiboas pulchellus Group from the eastern Andes of central Peru (Region Pasco). Calls of both H. melanopleura and the new species are described. The new species is more similar to H. melanopleura and H. palaestes but differs in morphological characters and in coloration pattern. The new species and H. melanopleura...
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The leaf or monkey frogs of the hylid subfamily Phyllomedusinae are a unique group of charismatic anurans. We present a molecular phylogenetic analysis that includes 45 of the 60 species of phyllomedusines using up to 12 genes and intervening tRNAs. The aims were to gain a better understanding of the phylogenetic position of Phrynomedusa, test the...
Article
A reassessment of some Amazonian spiny-backed treefrogs (Osteocephalus) either considered to be junior synonyms or not associated yet with Osteocephalus reveals that O. cabrerai (Cochran and Goin, 1970) from lowland Colombia and Peru is distinct from a frog previously used to revalidate the species, that O. festae (Peracca, 1904) is a valid species...
Data
A new species of Osteocephalus is described from lowland Amazonia of the Departamento Pando, northern Bolivia. The new species is most similar to Osteocephalus planiceps but differs by its smaller size (SVL 47.8–51.3 mm in males, 47.7–63.3 mm in females), absence of vocal slits, lack of sexual dimorphism in dorsal tubercles, single distal subarticu...
Data
FIGURE 3. (A) Palmar, and (B) plantar views of right hand and foot of the holotype of Osteocephalus castaneicola sp. n. (CBF 6051). Scale bar equals 5 mm.
Data
FIGURE 4. Schematic map of northern Bolivia showing the known distribution of Osteocephalus castaneicola sp. n. in Bolivia: (1) San Antonio del Matti, (2) San Antonio de Filadelfia (type locality).
Data
FIGURE 2. Holotype of Osteocephalus castaneicola sp. n. (CBF 6051) in life, (A) dorsal, and (B) ventral views. (C) Adult female paratype of Osteocephalus castaneicola sp. n. (CBF 6052) in life. (D) Night colouration of adult male paratype of Osteocephalus castaneicola sp. n. (NMP 6 V 73810 / 2) under natural conditions. (E) Newly metamorphosed juve...
Data
FIGURE 1. The majority rule consensus tree of the Bayesian phylogeny of the frog genus Osteocephalus, using mitochondrial 12 S rRNA – tRNA-Val – 16 S rRNA data. Nodal support, Bayesian posterior probabilities (BPP) and maximum likelihood (PhyML) bootstrap (1000 pseudoreplicates), are indicated. Collapsed branches were supported <50 % bootstrap and...
Article
Full-text available
A new species of Osteocephalus is described from lowland Amazonia of the Departamento Pando, northern Bolivia. The new species is most similar to Osteocephalus planiceps but differs by its smaller size (SVL 47.8–51.3 mm in males, 47.7–63.3 mm in females), absence of vocal slits, lack of sexual dimorphism in dorsal tubercles, single distal subarticu...
Article
Pristimantis yuruaniensis sp. nov. is described from the summit of Yuruaní-tepui, Estado Bolívar, eastern Venezuela. The new species is easily distinguished from other Guianan Pristimantis by its rather uniform dorsal coloration, absence of lip, forearm and shank bars, its small tympanum, and its advertisement call. The new species appears to occur...
Article
Pristimantis yuruaniensis sp. nov. is described from the summit of Yuruaní-tepui, Estado Bolívar, eastern Venezuela. The new species is easily distinguished from other Guianan Pristimantis by its rather uniform dorsal coloration, absence of lip, forearm and shank bars, its small tympanum, and its advertisement call. The new species appears to occur...
Data
FIGURE 3. Further specimens of Pristimantis yuruaniensis sp. nov. and its type locality. A-C: specimens not collected from Yuruaní-tepui. D: female Pristimantis yuruanienis sp. nov. with egg clutch in terrarium. This frog belongs to the type series, but there are no records as to which of them it is. E: type locality of Pristimantis yuruaniensis sp...
Data
FIGURE 6. Map of the Guayana region with the location of the Yuruani and Kukenán-tepui.
Data
FIGURE 1. Female holotype (ZFMK 87278) of Pristimantis yuruaniensis sp. nov. in dorsal (A), ventral (B), and lateral view (C). Scale: 10 mm.
Data
FIGURE 4. Hand (A), foot (B), and head of the preserved holotype of Pristimantis yuruaniensis sp. nov. in dorsal (C) and lateral (D) view.
Data
FIGURE 5. Oscillogram and sonagram of the advertisement call of Pristimantis yuruanienis sp. nov. (specimen not collected).
Data
FIGURE 2. Female holotype of Pristimantis yuruaniensis sp. nov. Note enlarged conical tubercle on upper eye lid (A) and fine middorsal raphe (B).
Article
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We describe a new species of small Hyla from sub-Andean forest of the Departamento La Paz, Bolivia. The new species is mainly characterized by smooth dorsal skin with few minute scattered tubercles, presence of a tympanic annulus, lack of tarsal folds, a brown dorsum with irregular longitudinal dark brown stripes, a broad dark brown lateral stripe...
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The advertisement calls of the following Neotropical poison frog species (Dendrobatidae) are described: Colostethus brunneus, Dendrobates imitator yurimaguensis, D. leucomelas and two populations referable to Epipedobates boulengeri. Oscillograms, audiospectrograms and measurements of vocalizations are provided. Advertisement calls of C. brunneus a...
Article
The South American spiny-backed treefrog, Osteocephalus leprieurii, as previously understood, is a composite of several species. We redescribe it morphologically on the basis of specimens from French Guiana and add other data on the biology of the species. We describe O. mutabor n. sp., previously confused with O. leprieurii, from the Amazon Basin...
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A phylogenetic analysis of the Neotropical dart-poison frogs, genus Phyllobates, was performed based on mitochondrial cytochrome b sequences. Members of Phyllobates from South and Central America were found to form each an evolutionary lineage. Among the South American lineage, species with uniform dorsal coloration as adults form a derived monophy...
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A new species of hylid frog, genus Osteocephalus is described from the eastern Andean slopes of central Peru (Pozuzo, Departamento Pasco) between 780 and 1000 m above sea level. It differs from all other species in the genus by the following combination of characters: small size, smooth dorsum in males, bicoloured iris lacking radiating dark lines,...
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We describe two new species of treefrogs of the genus Osteocephalus from primary forests in northeastern Amazonian Ecuador. One is a small to medium-sized species without or with only few flat dorsal tubercles in males and a large light subocular area. Tadpoles assigned to this species were found in a bromeliad and had eaten fertilized frog eggs, m...
Article
An analysis of partial sequences of the 16S ribosomal rRNA gene (582 bp) of 20 poison frog species (Dendrobatidae) confirmed their phylogenetic relationships to bufonid and leptodactylid frogs. Representatives of the ranoid families and subfamilies Raninae, Mantellinae, Petropedetinae, Cacosterninae, Arthroleptidae, Astylosternidae, and Microhylida...
Article
The Central Amazonian treefrog Osteocephalus oophagus breeds in water-filled bromeliad or palm tree leaf axils or in treeholes. The larvae feed on eggs provided by their parents; larvae not provided with eggs die. Survival of the larvae is ensured by the fact that the pair always spawns at the same site. They return at intervals of 5 to 7 days. Pai...
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Males of Anotheca spinosa call from water filled tree holes or bromeliad leaf axils. I used water filled containers to study the reproduction and parental care of this species in captivity. Between 48 and 311 eggs (x̄ = 157.8) were laid in a single, discontinuous layer above the water surface. The male abandoned the container immediately or 6-7 day...