Batrachophrynus and Telmatobius are the two genus of Telmatobiinae from the central Andes. Both genera have species with adaptations for life at high altitude in the Andes, with aquatic or semi-aquatic habits in creeks, lagoons and lakes. The objective of this study is to evaluate the phylogenetic relationships between Batrachophrynus and 13 species of Telmatobius from the central Andes using larval and adult morphology including diagnostic characters for Batrachophrynus and Telmatobius, and putative sinapomorphies for Telmatobius. The phylogenetic analysis showed 20 parsimonious trees with 56 steps length. The results of this study hypothesize that the species assigned to Batrachophrynus form a monophyletic group nested within Telmatobius. In this study, most of the synapomorphies that support Telmatobius (including Batrachophrynus) come from larval morphology and these sinapomorphies w...

The saxicolous lichens from Nevado Pastoruri (Cordillera Blanca, Department of Áncash) was evaluated at September month of years 2011 and 2012. We found 28 species, grouped into 19 genera and 14 families. The Families Lecanoraceae, Parmeliaceae and Teloschistaceae presented the greatest number of genera, while the genera Buellia, Lecanora and Umbilicaria recorded higher species richness. Crustacean lichens were dominant (61% of the total), followed by foliose (32%) and fruticose (7%).

Batrachophrynus y Telmatobius son los dos únicos géneros reconocidos de Telmatobiinae presentes en los Andes centrales. Las especies de ambos géneros presentan adaptaciones para la vida en la altitud de los Andes siendo de hábitos acuáticos o semiacuáticos en bofedales, riachuelos, lagunas o lagos altoandinos. Este estudio presenta las relaciones filogenéticas entre Batrachophrynus y 13 especies de Telmatobius utilizando caracteres morfológicos larvales y adultos, incluyendo caracteres diagnósticos para Batrachophrynus y Telmatobius, y las sinapomorfías sugeridas para Telmatobius. El análisis filogenético dio como resultado 20 árboles igualmente parsimoniosos con una longitud de 56 pasos. Batrachophrynus forma un grupo monofilético anidado dentro del clado de Telmatobius. En este estudio, la mayoría de sinapomorfías que sustentan a Telmatobius (incluyendo a Batrachophrynu...

The saxicolous lichens from Nevado Pastoruri (Cordillera Blanca, Department of Áncash) was evaluated at September month of years 2011 and 2012. We found 28 species, grouped into 19 genera and 14 families. The Families Lecanoraceae, Parmeliaceae and Teloschistaceae presented the greatest number of genera, while the genera Buellia, Lecanora and Umbilicaria recorded higher species richness. Crustacean lichens were dominant (61% of the total), followed by foliose (32%) and fruticose (7%).

The present study analyses the geographical distribution, conservation status, and nomenclature of Peruvian endemic Pedersenia weberbaueri. The species distribution was modelled using MaxEnt based on occurrence data and bioclimatic variables. The conservation status of the species was assessed against the categories and criteria of the IUCN Red List, and nomenclatural and typification issues were resolved. The potential distribution map of P. weberbaueri shows that the species is restricted to the seasonally dry tropical forests of the Marañón valley within a narrow latitudinal, longitudinal, and elevational range. Consequently, we propose to categorise the species as Endangered (EN) and provide the necessary information for its inclusion in the IUCN Red List. Finally, we resolve nomenclatural issues and designate a lectotype. The results contribute to the biological knowledge of P. we...

Since 2006 to 2008, floristic and vegetational studies on cryoturbed soils and its associated habitats were carried out in four sites above 4500 m, at Cordillera Blanca (Ancash, Peru). Botanical collections and intersection-line transects were made. The space (in cm) occupied by each species were measurement. A total of 136 species, in 65 genera and 26 families, were recorded. Magnoliopsida (Dicots) were the most diverse (97 spp.), followed by the Liliopsida (Monocots) (36 spp.). The highest species richness was found in the Asteraceae and Poaceae families (40,63%). The most diverse genera was Senecio (18) and Calamagrostis (12 ). We registered 76 species (54,82%) in cryoturbed soils and associates habitats, while 60 species (44,11%) were recorded for the adjacent vegetation. From the total, 95,56% of the species were perennials herbs. Four types of plants comunities were characterized: ...

Entre los años 2006 y 2008, se llevaron a cabo estudios florístico y de vegetación de los suelos crioturbados y hábitats asociados en cuatro localidades de la Cordillera Blanca (Ancash, Perú) localizadas por encima de los 4500 m. Se realizaron recolectas botánicas además de transectos de intersección-línea, en los cuales se midió el espacio (en cm) ocupado por cada especie. Fueron determinadas 136 especies de plantas vasculares, agrupadas en 65 géneros y 26 familias. Las Magnoliópsida (dicotiledóneas) fueron las más diversas con 97 especies, seguidas de las Liliópsidas (Monocotiledóneas) con 36. La mayor diversidad está concentrada en las familias Asteraceae y Poaceae (40,63%). Los géneros con mayor riqueza de especies fueron Senecio (18) y Calamagrostis (12). Se registraron 76 especies (54,82%) en suelos crioturbados y hábitats asociados; mientras que 60 especies (44,...

around Abra Apacheta, in Cangallo (Ayacucho) and Huaytara (Huancavelica) Provinces. The aims of this study were: to study vascular floristic composition of High Andes (over 4500 m of altitude) and characterize highland vegetation. There were used conventional techniques for botanical collection and vegetation coverage measurements by intersection-line transects and Point Quadrat modifyed method. There were registered 134 species of vascular plants (Pteridophytes, Gymnospems, Eudicots and Monocots) grouped in 60 genera and 23 families. Eudicots were the dominant group with 74% of the total registered, 82% in genera and 77% in species; followed by Monocots with 13%, 13% and 21% in the previous categories. Monilophytes (ferns) were poorly represented by two families (9%), two genera (3%) and two species (1%); while Gymnosperms only registered one specie (Ephedra rupestris Benth.). By the qu...

around Abra Apacheta, in Cangallo (Ayacucho) and Huaytara (Huancavelica) Provinces. The aims of this study were: to study vascular floristic composition of High Andes (over 4500 m of altitude) and characterize highland vegetation. There were used conventional techniques for botanical collection and vegetation coverage measurements by intersection-line transects and Point Quadrat modifyed method. There were registered 134 species of vascular plants (Pteridophytes, Gymnospems, Eudicots and Monocots) grouped in 60 genera and 23 families. Eudicots were the dominant group with 74% of the total registered, 82% in genera and 77% in species; followed by Monocots with 13%, 13% and 21% in the previous categories. Monilophytes (ferns) were poorly represented by two families (9%), two genera (3%) and two species (1%); while Gymnosperms only registered one specie (Ephedra rupestris Benth.). By the qu...