Results 21 to 30 of about 208,051 (314)

La tributación sobre la renta en Colombia

I+D Revista de Investigaciones, 2021
El presente artículo tiene por objetivo analizar los aspectos más sobresalientes del Impuesto sobre la Renta, desde su nacimiento internacional y nacional, hasta los acontecimientos actuales.
Wilminton Richard Harrison Polania Bello, Anayibe Ome Barahona, Evelia Sabí Ramírez   +2 more
doaj   +1 more source

Concentración de los macronutrientes del suelo en áreas de pastoreo del departamento de Caquetá, Amazonia colombiana

Ciencia y Tecnología Agropecuaria, 2020
El establecimiento de ganadería en el noroccidente de la Amazonia colombiana disminuye los macronutrientes en el suelo y afecta los sistemas productivos.
Jennifer Zambrano-Yepes, Wilmer Herrera-Valencia, Pablo Andrés Motta-Delgado   +2 more
doaj   +1 more source

Widespread reforestation before European influence on Amazonia

Science, 2021
Pre-Columbian reforestation in Amazonia An early 17th-century temporary reduction in global atmospheric carbon dioxide (CO2) levels has now been attributed to reforestation in Amazonia after the catastrophic loss of life of the indigenous population ...
M. Bush, M. N. Nascimento, C. Åkesson, G. Cárdenes-Sandí, S. Maezumi, H. Behling, A. Correa-Metrio, W. Church, S. Huisman, T. Kelly, F. Mayle, C. McMichael   +11 more
semanticscholar   +1 more source

Systematics and biogeography of the Boana albopunctata species group (Anura, Hylidae), with the description of two new species from Amazonia

Systematics and Biodiversity, 2021
The outstanding species richness of Amazonia has fascinated biologists for centuries. However, the records of actual numbers and distribution of species forming its ecosystems are so incomplete that the understanding of the historical causes and regional
Antoine Fouquet, P. Marinho, Alexandre Réjaud, T. R. Carvalho, Marcel A. Caminer, M. Jansen, R. Rainha, M. Rodrigues, F. Werneck, A. Lima, T. Hrbek, A. Giaretta, P. Venegas, Germán Chávez, S. Ron   +14 more
semanticscholar   +1 more source

Sensory ecologies, plant-persons and multinatural landscapes in Amazonia

Botany, 2021
Seeking to generate a deeper methodological and theoretical dialogue between botanical science and anthropology, this paper summarizes interdisciplinary approaches to human-plant interactions we have described as “sensory ecology” and “phytoethnography,”
G. Shepard, L. Daly
semanticscholar   +1 more source

Comportamiento productivo de Ia raza Brangus al destete en condiciones de pastoreo en Colombia

Ciencia y Agricultura, 2014
EI objetivo del estudio fue evaluar y comprar el desempeño productivo al destete de terneros Brangus en pastoreo, y determinar la influencia del sexo sobre su rendimiento.
Pablo Andrés Motta-Delgado, Carolina Benítez-Vásquez, Maira Alejandra López-Perea, Johanna Alessandra Plaza-Cárdenas, Camilo Dussan-González, Milton Emiliano Peñaloza-Galeano   +5 more
doaj   +1 more source

Competition influences tree growth, but not mortality, across environmental gradients in Amazonia and tropical Africa

Ecology, 2020
Competition among trees is an important driver of community structure and dynamics in tropical forests. Neighboring trees may impact an individual tree’s growth rate and probability of mortality, but large‐scale geographic and environmental variation in ...
D. Rozendaal, O. Phillips, S. Lewis, K. Affum‐Baffoe, E. Álvarez Dávila, A. Andrade, L. Aragão, A. Araujo-Murakami, T. Baker, O. Bánki, R. Brienen, J. Camargo, J. Comiskey, M. Djuikouo, S. Fauset, T. Feldpausch, T. Killeen, W. Laurance, S. Laurance, T. Lovejoy, Y. Malhi, B. Marimon, B. Marimon, A. Marshall, D. Neill, Percy Núñez Vargas, N. Pitman, L. Poorter, J. Reitsma, M. Silveira, B. Sonké, T. Sunderland, H. Taedoumg, H. ter Steege, J. Terborgh, R. Umetsu, G. V. D. van der Heijden, E. Vilanova, V. Vos, L. White, S. Willcock, Lise Zemagho, Mark C. Vanderwel   +42 more
semanticscholar   +1 more source

Carbono almacenado en estrato arbóreo de sistemas ganaderos y naturales del municipio de Albania, Caquetá, Colombia

Ciencia y Agricultura, 2019
El objetivo del presente estudio fue estimar la capacidad de almacenamiento de carbono en el componente arbóreo de cinco usos de suelo tanto en sistemas ganaderos como naturales: a) pasturas tradicionales con árboles dispersos en baja densidad (PT), b ...
Erika Paola Rojas-Vargas, Edgar Daniel Silva-Agudelo, Ana Yiceth Guillén-Motta, Pablo Andrés Motta-Delgado, M.Sc., Wilmer Herrera-Valencia, M.Sc.   +4 more
doaj   +1 more source

Checklist of Orchidaceae from Caquetá, Colombia [PDF]

PhytoKeys, 2023
A checklist of Orchidaceae from Caquetá, Colombia is presented here. We recorded 98 genera and 418 species, exceeding a previous inventory by 276 species.
Tatiana Arias, Jeisson Chaux-Varela, Maria del Pilar Camero, R. Alexis Calderon-Álvarez, Anyi Carolina Trujillo, Marco A. Correa-Munera, Alejandro Zuluaga, Oscar Perdomo, Oscar A. Pérez-Escobar, Edwin Trujillo-Trujillo, Janice Valencia-D.   +10 more
doaj   +3 more sources

Relationship between Biomass Burning Emissions and Deforestation in Amazonia over the Last Two Decades

Forests, 2021
With deforestation and associated fires ongoing at high rates, and amidst urgent need to preserve Amazonia, improving the understanding of biomass burning emissions drivers is essential. The use of orbital remote sensing data enables the estimate of both
G. Mataveli, Gabriel de Oliveira, H. Seixas, G. Pereira, S. Stark, L. Gatti, L. Basso, Graciela Tejada, H. Cassol, L. Anderson, L. Aragão   +10 more
semanticscholar   +1 more source