Browsing by Autor "Steffen Reichle"

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A case of playful interaction between Bolivian river dolphins with a Beni anaconda
(Wiley, 2022) Omar Machado Entiauspe-Neto; Steffen Reichle; A. Ríos
The authors declare no conflict of interest. Data (Entiauspe Neto et al., 2022) are available in Figshare at: https://doi.org/10.6084/m9.figshare.19236462.v1.
A new species of Oxyrhopus Wagler, 1830 (Serpentes: Dipsadidae) from the Bolivian Andes
(Brazilian Academy of Sciences, 2020) Lucindo Gonzáles; Steffen Reichle; Omar Machado Entiauspe-Neto
We describe a new dipsadine snake species, of the genus Oxyrhopus Wagler, 1830, from the highlands of Bolivia. Oxyrhopus emberti sp. n. is diagnosed from its congeners based on external and hemipenial morphology. The new species inhabits the humid forests of Yungas and Tucumano-Bolivian Forest highlands, between 1.200 - 1.800 meters above sea level, and is likely to be a Bolivian endemic. We also discuss the relationships of the new species with Andean congeners and provide a key to the identification of the Oxyrhopus species from the Central Andes of Bolivia and Peru.
Diversity and Conservation of the Amphibians of Bolivia
(Illinois Natural History Survey, 2014) Ignacio De la Riva; Steffen Reichle
In the past decades, herpetologists have studied intensively the amphibians of Bolivia, increasing dramatically the number of species known for the country. There are currently 266 species recorded, but this number will increase with the addition of many new country records and the description of species new to science, especially within Andean Craugastoridae. Deforestation, habitat destruction (mostly due to agriculture), water pollution, and chytridiomycosis are the main causes of amphibian declines in Bolivia. Andean frogs are much more affected than lowland species. Infection by the chytrid fungus Batrachochytrium dendrobatidis is widespread. Forest species of the Andean genus Telmatobius have disappeared from known sites and some other Andean taxa have declined severely. Here, we revise the International Union for Conservation of Nature conservation status categories for some species of anurans. Public awareness is increasing thanks to different local initiatives addressing projects to protect Bolivian amphibians.
Nature conservation: priority-setting needs a global change
(Springer Science+Business Media, 2013) Lisa Biber‐Freudenberger; P. R. Hobson; Martin Schluck; Stefan Kreft; Katrin Vohland; Henning Sommer; Steffen Reichle; Christoph Nowicki; Wilhelm Barthlott; Pierre L. Ibisch
New Species of Ischnocnema (Anura: Leptodactylidae) from the Andes of Bolivia
(The Society for the Study of Amphibians and Reptiles, 2005) José M. Padial; Steffen Reichle; Ignacio De la Riva
A new species of Ischnocnema is described from cloud forests in the Andes of northwestern Bolivia (La Paz Department). The new species can be distinguished from all other Ischnocnema except Ischnocnema sanctaecrucis by the presence of a pale sacral stripe from the level of the caudal tip of the coccyx to the level of the sacrum, well-developed occipital and sacral folds, rounded narrow terminal discs 1.3 times as wide as the corresponding phalange, and dorsal skin moderately warty. It can be distinguished from I. sanctaecrucis, also of the Bolivian cloud forests, by having head longer than wide, well-marked occipital and sacral folds, longer subacuminate to rounded snout, ventral regions mostly cream with little brown mottling, and dorsal region without reddish to scarlet mottling or spots. The new species shares some characteristics with other species of Ischnocnema and members of the Eleutherodactylus discoidalis group, and it appears closely related to I. sanctaecrucis.
Nuevas citas de Eleutherodactylus Duméril y Bibron, 1841 (Anura, Leptodactylidae) para Bolivia
(Spanish National Research Council, 2004) José M. Padial; Lucindo Gonzáles; Steffen Reichle; Rodrigo Aguayo; Ignacio De la Riva
En este trabajo se publican los primeros registros de cinco especies del género Eleutherodactylus (Anura, Leptodactylidae) para Bolivia: E. altamazonicus en los Departamentos de Pando y La Paz; E. carvalhoi en Cochabamba; y E. ockendeni, E. skydmainos y E. zimmermanae en Pando. Además, se aportan las primeras citas de E. cruralis para el Departamento de Pando, de E. danae para Beni y La Paz, de E. platydactylus para Beni, de E. toftae para Pando y La Paz y de E. ventrimarmoratus para La Paz. La diversidad conocida de Eleutherodactylus en Bolivia es de 25 especies, aunque los problemas taxonómicos sin resolver, las especies en descripción y el alto número de especies aún no citadas que se considera probable encontrar, hacen que aún desconozcamos la verdadera diversidad de este género en Bolivia.
Phylogenetic relationships of the Boana pulchella Group (Anura: Hylidae)
(Elsevier BV, 2020) Julián Faivovich; Paulo D. P. Pinheiro; Mariana L. Lyra; Martín O. Pereyra; Diego Baldo; Arturo Muñoz; Steffen Reichle; Reuber Albuquerque Brandão; Ariovaldo A. Giaretta; Maria Tereza C. Thomé
Priority areas for amphibian conservation in a neotropical megadiverse country: the need for alternative, non place based, conservation
(Springer Science+Business Media, 2011) Dirk Embert; Steffen Reichle; Daniel M. Larrea‐Alcázar; Claudia Cortez; Arturo Muñoz; Lucindo Gonzáles; Rossy Montaño; Rodrigo Aguayo; Enrique Domic; José M. Padial
Seis primeras citas y datos sobre la biología de siete especies de anuros (Amphibia: Anura) para Bolivia
(2004) Lucindo Gonzáles; Steffen Reichle
Singularidades de la herpetofauna de la serranía Santiago de Chiquitos, Santa Cruz-Bolivia
(2002) Lucindo Gonzáles; Steffen Reichle
SPECIES IDENTITY IN THE GENUS ADENOMERA (ANURA: LEPTODACTYLIDAE) IN SOUTHEASTERN PERU
(Herpetologists' League, 2003) Ariadne Angulo; Reginald B. Cocroft; Steffen Reichle
The genus Adenomera has been a difficult group for systematic studies because the species are similar and geographically variable. Two species have been reported from the Peruvian Amazon Basin: Adenomera andreae and Adenomera hylaedactyla. However, acoustic recordings from the Tambopata National Reserve in southeastern Peru reveal four sympatric advertisement call types that are distinctive in acoustic parameters and to the human ear. Some subtle morphological differences are also present. We conclude that there are at least four sympatric species at Tambopata and that Adenomera has a greater species diversity than currently acknowledged.
The Influence of Climatic Seasonality on the Diversity of Different Tropical Pollinator Groups
(Public Library of Science, 2011) Stefan Abrahamczyk; Jürgen Kluge; Yuvinka Gareca; Steffen Reichle; Michael Kessler
Tropical South America is rich in different groups of pollinators, but the biotic and abiotic factors determining the geographical distribution of their species richness are poorly understood. We analyzed the species richness of three groups of pollinators (bees and wasps, butterflies, hummingbirds) in six tropical forests in the Bolivian lowlands along a gradient of climatic seasonality and precipitation ranging from 410 mm to 6250 mm. At each site, we sampled the three pollinator groups and their food plants twice for 16 days in both the dry and rainy seasons. The richness of the pollinator groups was related to climatic factors by linear regressions. Differences in species numbers between pollinator groups were analyzed by Wilcoxon tests for matched pairs and the proportion in species numbers between pollinator groups by correlation analyses. Species richness of hummingbirds was most closely correlated to the continuous availability of food, that of bees and wasps to the number of food plant species and flowers, and that of butterflies to air temperature. Only the species number of butterflies differed significantly between seasons. We were not able to find shifts in the proportion of species numbers of the different groups of pollinators along the study gradient. Thus, we conclude that the diversity of pollinator guilds is determined by group-specific factors and that the constant proportions in species numbers of the different pollinator groups constitute a general pattern.
The stream-dwelling tadpole of<i>Hyloscirtus charazani</i>(Anura: Hylidae) from Andean Bolivia
(Taylor & Francis, 2005) Stefan Lötters; Steffen Reichle; Julián Faivovich; Raoul H. Bain
Abstract We describe the lotic larva of Hyloscirtus charazani from Charazani and nearby areas, Departamento La Paz, Bolivia (2700–3200 m a.s.l.). It is morphologically undistinguishable from tadpoles of H. armatus sensu lato. These tadpoles show stream adaptation through a robust body with strong tail musculature, enlarged oral disc, increased number of labial tooth rows, and complete marginal papillae. Furthermore, they have a large saccular structure that underlies the limb buds, encloses the vent tube, and partially covers the hindlimbs during their development. Resumen Describimos la larva lótica de Hyloscirtus charazani de Charazani y de otra localidad cercana, Departamento La Paz, Bolivia (2700–3200 m sobre el nivel del mar). Morfologicamente es identica con renacuajos de H. armatus sensu lato. Estos renacuajos muestran caracteres comunmente entendidos como adaptaciones a la vida en arroyos rapidos, como ser el cuerpo robusto, musculatura de la cola robusta, disco oral ensanchado, un aumento en las filas de dientes labiales y papila marginal completa. Ademas, tienen una estructura sacular grande, bajo los primordios de los miembros posteriores, que contiene al tubo cloacal, y que envuelve parcialmente a los miembros durante su desarrollo. Keywords: AmphibiaHylinaelotic larvaBolivia Acknowledgments We are grateful to James Aparicio from Colección Boliviana de Fauna, La Paz, for field company and issuing permits. The AMNH material was collected during an expedition supported by the Center for Biodiversity and Conservation at the American Museum of Natural History, New York, and the Center for Environmental Research and Conservation at Columbia University, New York, in collaboration with the Museo de Historia Natural Noel-Kempff Mercado, Santa Cruz de la Sierra, Bolivia and Colección Boliviana de la Fauna, La Paz. RB is grateful to Arturo Muñoz for his companionship during field work. JF and RHB are grateful to Eleanor J. Sterling (Center for Biodiversity and Conservation, AMNH) and Susan Davis for supporting this research. JF acknowledges the American Museum of Natural History, E3B/Columbia University, and National Science Foundation grant no. DEB-0407632 for financial support.