Results 41 to 50 of about 171,693 (169)

La evolución estructural de los andes más septentrionales de Colombia

Boletín Geológico, 1971
El Escudo Guayanés primario, al norte de Suramérica, es más antiguo que el metamorfismo del complejo eugeosinclinal· de Imataca al sudeste de Venezuela el cual tuvo lugar hace 3000 millones de años.
Earl M. Irving
doaj   +1 more source

New species and new records in Agarista (Ericaceae) from the Peruvian Andes

Nordic Journal of Botany, Volume 2025, Issue 9, September 2025.
Agarista (Ericaceae) is currently represented in Peru by three species. Here, we update this number to five, adding new taxa based on the recognition of a taxonomic novelty and new records. The new species Agarista eugeniifolia differs from all congeneric species by an abaxially sulcate midvein.
Claudenice Hilda Dalastra, Peter W. Fritsch, Morgan R. Gostel, Gustavo Heiden   +3 more
wiley   +1 more source

Amphibians (Amphibia, Lissamphibia) from the Cordilleras Central and Occidental, Department of Caldas, Colombia: A century of data collection and research

Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales
The Andean region of Colombia hosts a high number of endemic amphibian species due to the complex topography of the three main cordilleras and the associated mountain massifs.
Héctor F. Árias-Monsalve, Erika Alejandra Cardona-Galvis, L. Santiago Caicedo-Martínez, Julián A. Rojas-Morales, Jose J. Henao-Osorio, Héctor E. Ramírez-Chaves   +5 more
doaj   +1 more source

Structure of the Ecuadorian Upper Plate From a Joint Seismic‐Gravity Inversion

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 8, August 2025.
Abstract The Ecuadorian portion of the South American subduction zone presents an interesting case study in the structure and complex evolution of an upper plate. There are outstanding questions about its tectonic history, composition, and magmatic processes.
Andrew Birkey, Colton Lynner, Chengping Chai, Monica Maceira   +3 more
wiley   +1 more source

New species of Eleutherodactylus of Colombia (Amphibia: Leptodactylidae). I: five new species from the paramos of the Cordillera Central New species of Eleutherodactylus of Colombia (Amphibia: Leptodactylidae). I: five new species from the paramos of the Cordillera Central

Caldasia, 1980
Se describen aquí las nuevas especies Eleutherodactylus obmutescens, E. racemus y E. simoterus, del grupo unistrigatus, provenientes de los Páramos de Puracé, Las Hermosas y Letras, respectivamente, en la Cordillera Centralde Colombia. Estas especies son
Lynch John D.
doaj  

Nueva especie de Mastigoproctus Pocock, 1894 (Thelyphonida, Thelyphonidae) de Venezuela noroccidental

Graellsia, 2009
Una nueva especie del género Mastigoproctus Pocock, 1894 es descrita para el estado Falcón, en el tramo occidental de la Cordillera de la Costa, Venezuela.
O. Villarreal Manzanilla, A. P. de L. Giupponi   +1 more
doaj   +1 more source

Avifauna en dos complejos de páramo de Antioquia, Colombia

Biota Colombiana, 2019
Hicimos caracterizaciones rápidas de avifauna en dos complejos de páramo (Frontino-Urrao y Sonsón) en el departamento de Antioquia, Colombia, en el límite superior de bosques nublados, zonas de transición y páramos.
Sergio Chaparro-Herrera, Andrea Lopera-Salazar, Ana M. Gutiérrez-Zuluaga, Jefry Betancur, Dariel Martínez Alvarado, Héctor Fabio Rivera Gutiérrez, Juan L. Parra   +6 more
doaj   +3 more sources

Uncovering the Potential of Carbon Stocks and Nutrients in Livestock Systems in Zamora Chinchipe

Applied and Environmental Soil Science, Volume 2025, Issue 1, 2025.
Zamora Chinchipe’s soil supports the biodiversity of its forests, but small farmers also use it for agricultural activities. Unsustainable management of these areas contributes to expanding the agricultural frontier, which generates pressure on ecosystems.
L. Jiménez, D. Capa-Mora, N. Fierro, J. Lasso, J. Roa, J. Bermeo, J. Merino, R. Carrera, Shankar Karuppannan   +8 more
wiley   +1 more source

Elasticity of Nacrite: Implications for Subduction Zone Dynamics

Geochemistry, Geophysics, Geosystems, Volume 25, Issue 12, December 2024.
Abstract Subduction zones exhibit heterogeneities in composition due to different mineral assemblages transported into the mantle by the descending slabs, thus affecting the seismic properties of the region. These minerals are typically rich in alumina and silica and often contain hydrous phases.
Ishita Das, Gaurav Shukla
wiley   +1 more source

Infección por el hongo quitrido Batrachochytrium Dendrobatidis en anuros de la Cordillera Occidental de Colombia [PDF]

, 2010
Infección por el hongo quitrido Batrachochytrium Dendrobatidis en anuros de la Cordillera Occidental de ColombiaSe detectó infección por un hongo quítrido, Batrachochytrium dendrobatidis (Longcore 1999) en anuros de cuatro localidades del Valle del Cauca
Bolívar G., Wilmar, Castro Herrera, Fernando, Velásquez E., Beatriz E., Herrera, Maria Isabel   +3 more
core   +1 more source