Browsing by Autor "MARCELO GUERRERO-REINHARD"

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A new species of Osteocephalus (Anura: Hylidae) from Amazonian Bolivia: first evidence of tree frog breeding in fruit capsules of the Brazil nut tree
(Q15088586, 2009) Jiřı́ Moravec; James Aparicio; MARCELO GUERRERO-REINHARD; Gonzalo Calderón; Karl‐Heinz Jungfer; Václav Gvoždík
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 subarticular tubercle on the fourth finger, absence of dark spots on flanks, and by bicoloured iris with fine dark reticulate to radiate lines. The new species inhabits terra firme rainforest, breeds in water-filled fruit capsules of the Brazil nut tree and has oophagous tadpoles. Estimations of phylogenetic relationships within Osteocephalus based on mitochondrial DNA sequences show that the new species is closely related to O. planiceps and O. deridens.
Diversity of small Amazonian Dendropsophus (Anura: Hylidae): another new species from northern Bolivia
(Q15088586, 2008) Jiří Moravec; James Aparicio; MARCELO GUERRERO-REINHARD; Gonzalo Calderón; Jörn Köhler
A new small species of Dendrospsophus is described from lowland Amazonia of the Departamento Pando, northern Bolivia. The new species is mainly characterized by smooth dorsal skin with scattered minute tubercles, relatively large distal subarticular tubercle on first toe, lack of tarsal folds, light brown to dark reddish or purple brown dorsum with numerous small dark markings and spots, dark colouration of loreal-tympanic region sharply outlined and contrasting against dorsal head colouration, one or two small white spots below the eye, yellow vocal sac in life, and advertisement call consisting of two notes with strong amplitude modulation. The new species is tentatively grouped with species placed in the Dendropsophus microcephalus group. It has rather arboreal habits and occurs in the tree canopy along swampy or flooded shores of smaller streams running through terra firme rainforest.
DNA taxonomy reveals two new species records of Hyalinobatrachium (Anura: Centrolenidae) for Bolivia
(Q15088586, 2011) Santiago Castroviejo‐Fisher; Jiřı́ Moravec; James Aparicio; MARCELO GUERRERO-REINHARD; Gonzalo Calderón
We collected two specimens of the genus Hyalinobatrachium during fieldwork expeditions to the Departamento Pando—the northernmost region of Bolivia situated in the south-western Amazonian basin, within the zone of tall evergreen lowland rainforest. The specimens are deposited in the Colección Boliviana de Fauna, La Paz (CBF 6453) and in the National Museum, Prague (NMP6V 74059). Because species identification within Hyalinobatrachium based only on morphological characters is in many cases problematic (Kok & Castroviejo-Fisher 2008; Castroviejo-Fisher et al. 2009), we took advantage of published sequences of Hyalinobatrachium to identify our samples. Our results show that each specimen belongs to a different species (H. mondolfii and H. munozorum), none of them previously known to occur in Bolivia. The taxonomic implications of our discovery are briefly discussed.