Browsing by Autor "Rodrigo Bernal"

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An integrated assessment of the vascular plant species of the Americas
(American Association for the Advancement of Science, 2017) Carmen Ulloa Ulloa; Pedro Acevedo‐Rodríguez; Stephan Beck; Manuel J. Belgrano; Rodrigo Bernal; Paul E. Berry; Lois Brako; Marcela Celis; Gerrit Davidse; Rafaela Campostrini Forzza
The cataloging of the vascular plants of the Americas has a centuries-long history, but it is only in recent decades that an overview of the entire flora has become possible. We present an integrated assessment of all known native species of vascular plants in the Americas. Twelve regional and national checklists, prepared over the past 25 years and including two large ongoing flora projects, were merged into a single list. Our publicly searchable checklist includes 124,993 species, 6227 genera, and 355 families, which correspond to 33% of the 383,671 vascular plant species known worldwide. In the past 25 years, the rate at which new species descriptions are added has averaged 744 annually for the Americas, and we can expect the total to reach about 150,000.
Genetic structuring in a Neotropical palm analyzed through an Andean orogenesis‐scenario
(Wiley, 2018) Sebastián Escobar; Jean‐Christophe Pintaud; Henrik Balslev; Rodrigo Bernal; Mónica Moraes Ramírez; Betty Millán; Rommel Montúfar
Andean orogenesis has driven the development of very high plant diversity in the Neotropics through its impact on landscape evolution and climate. The analysis of the intraspecific patterns of genetic structure in plants would permit inferring the effects of Andean uplift on the evolution and diversification of Neotropical flora. In this study, using microsatellite markers and Bayesian clustering analyses, we report the presence of four genetic clusters for the palm Oenocarpus bataua var. bataua which are located within four biogeographic regions in northwestern South America: (a) Chocó rain forest, (b) Amotape-Huancabamba Zone, (c) northwestern Amazonian rain forest, and (d) southwestern Amazonian rain forest. We hypothesize that these clusters developed following three genetic diversification events mainly promoted by Andean orogenic events. Additionally, the distinct current climate dynamics among northwestern and southwestern Amazonia may maintain the genetic diversification detected in the western Amazon basin. Genetic exchange was identified between the clusters, including across the Andes region, discarding the possibility of any cluster to diversify as a distinct intraspecific variety. We identified a hot spot of genetic diversity in the northern Peruvian Amazon around the locality of Iquitos. We also detected a decrease in diversity with distance from this area in westward and southward direction within the Amazon basin and the eastern Andean foothills. Additionally, we confirmed the existence and divergence of O. bataua var. bataua from var. oligocarpus in northern South America, possibly expanding the distributional range of the latter variety beyond eastern Venezuela, to the central and eastern Andean cordilleras of Colombia. Based on our results, we suggest that Andean orogenesis is the main driver of genetic structuring and diversification in O. bataua within northwestern South America.
Las palmeras de América del Sur: diversidad, distribución e historia evolutiva
(National University of San Marcos, 2008) Jean‐Christophe Pintaud; Gloria Galeano; Henrik Balslev; Rodrigo Bernal; Finn Borchsenius; Evandro José Linhares Ferreira; Jean‐Jacques de Granville; Kember Mejía; Betty Millán; Mónica Moraes
Este artículo presenta un inventario de la flora de palmeras autóctonas de Suramérica, conformada por 457 especies y 50 géneros. Se analiza la distribución de este grupo vegetal en siete entidades fitogeográficas y se discuten los principales factores que influyen sobre la evolución de las palmeras en América del Sur.
Produção de palmito de Euterpe oleacea Mart.(Arecaceae) no litoral Pacífico Colombiano
(District University of Bogotá, 2011) Martha Isabel Vallejo; Natalia Valderrama; Rodrigo Bernal; Gloria Galeano; Gerardo Arteaga; Claudia Leal
PRODUCCIÓN DE PALMITO DE Euterpe oleracea Mart. (ARECACEAE) EN LA COSTA PACÍFICA COLOMBIANA: ESTADO ACTUAL Y PERSPECTIVAS
(District University of Bogotá, 2011) Martha Isabel Vallejo; Natalia Valderrama; Rodrigo Bernal; Gloria Galeano; Gerardo Arteaga; Claudia Leal
La revista Colombia Forestal publica manuscritos originales en temáticas del campo forestal y diversos aspectos de los recursos naturales y del medio ambiente, los cuales se discriminan en las categorías de artículo de investigación, de revisión, de reflexión y notas técnicas de acuerdo con lo estipulado por COLCIENCIAS para las publicaciones científicas. De acuerdo a la clasificación de áreas científicas de la Organización para la Cooperación y el Desarrollo Económico (OCDE), la revista Colombia Forestal pertenece al gran área de Ciencias Agrícolas(4), área de Agricultura, Silvicultura y Pesca(4A) y a la disciplina Forestal (4A02).