Results 31 to 40 of about 575 (131)

Territorios prehispánicos en las regiones interfluviales, norte de la Amazonía del Ecuador

Bulletin de l'Institut Français d'Études Andines, 2014
New archaeological evidence from the northern interfluvial regions of the Ecuadorian Amazon suggests a sequence of occupation by different ceramic traditions starting in the Regional Development Period. Only two sites are related to the Formative Period,
A. Jorge Arellano
doaj   +1 more source

Combined CO₂ measurement record indicates Amazon forest carbon uptake is offset by savanna carbon release [PDF]

Atmospheric Chemistry and Physics
In tropical South America there has been substantial progress in atmospheric monitoring capacity, but the region still has a limited number of continental atmospheric stations relative to its large area, hindering net carbon flux estimates using ...
S. Botía, S. Munassar, T. Koch, D. Custodio, L. S. Basso, S. Komiya, J. V. Lavric, D. Walter, M. Gloor, G. Martins, S. Naus, G. Koren, I. T. Luijkx, S. Hantson, J. B. Miller, W. Peters, W. Peters, C. Rödenbeck, C. Gerbig   +18 more
doaj   +1 more source

Visualization of urban floodplains in the Amazon foothill using the geo-inspired model of natural vector multi-agents (AVNG)

Revista Facultad de Ingeniería, 2017
In the specialized literature, there are different ways to calculate and display flooded areas by geographical entities (rivers or streams), using mathematical and physical models in 1D and 2D areas; also, the use of tools such as Geographic Information ...
Edwin Eduardo Millán-Rojas, José Nelson Pérez-Castillo, Adriana Patricia Gallego Torres   +2 more
doaj   +1 more source

Hydroponic and organoponic green forage of corn as a nutritional supplement for sheep in the Amazon Foothills

, 2021
Contextualization: Ruminants have a comparative advantage over other species, because their ability to digest the fiber fractions present in forages.   Knowledge gap: In tropical regions, due to changing environmental conditions, it is more difficult to produce pastures of high nutritional quality, resulting in forage seasonality that leads to ...
Narvaez Herrera, Juan Pablo, Guerrero Guerrero, Elizabeth Marcela   +1 more
openaire   +1 more source

Fish species composition reflects geomorphology in the Western Amazon, the Earth's vertebrate biodiversity hotspot [PDF]

Frontiers of Biogeography
Fishes of the Western Amazon exhibit the greatest diversity of any continental vertebrate fauna on Earth. Hypotheses to explain diversity patterns have focused on various ecological and evolutionary processes, yet we have historically lacked detailed ...
Juan D. Bogotá-Gregory, Carlos DoNascimiento, Flávio C. T. Lima, Sandra B. Correa, Leo Ohyama, Astrid Acosta-Santos, Edwin Agudelo Córdoba, David G. Jenkins, James S. Albert   +8 more
doaj   +3 more sources

Bias Correction of ERA5 Temperature Across Five Topoclimatic Clusters: A Comparative Evaluation of Four Methods

International Journal of Climatology, EarlyView.
ERA5 near‐surface temperature over South America exhibits systematic cold biases in daily maximum temperature and warm biases in daily minimum temperature. To address the continent's strong climatic and topographic heterogeneity, South America was partitioned into five topoclimatic clusters, and four bias‐correction approaches were evaluated. The Multi‐
José Roberto Rozante, Gabriela Rozante
wiley   +1 more source

National Policy Coherence Counts for Reducing Inequality in Global Climate and Development Agendas

Sustainable Development, EarlyView.
ABSTRACT International institutions promote policy coherence as crucial to the effective and fair implementation of global sustainability agendas, though the evidence for its benefits is slim. We present here the first systematic cross‐country dataset on the consequences of national government efforts to promote policy coherence for vulnerable groups ...
Katherine Browne, Adis Dzebo, Zoha Shawoo, Mario Cardenas, Pierrick Chalaye, Alexia Faus Onbargi, Cassilde Muhoza, Patricia Nicdao, Nokwethaba Makhanya, Navam Niles, Priyatma Singh   +10 more
wiley   +1 more source

Seismicity in colombian llanos foothills: Characterization, relocation and local seismic tomography

Boletín de Ciencias de la Tierra, 2015
An earthquake relocation by seismic simultaneous inversion and double differences methods were done in the Colombian Llanos Foothills from 3º to 5ºN and from 73º to 75ºW.
Francisco Javier Muñoz-Burbano, Carlos Alberto Vargas-Jiménez, German Chicangana   +2 more
doaj   +1 more source

Contrastive ecoacoustic indices: Large‐scale global soundscape characterization with contrastive inference

Methods in Ecology and Evolution, EarlyView.
Abstract Ecoacoustics mainly aims at monitoring soundscapes by means of non‐invasive protocols. Despite the widespread adoption of machine and deep learning techniques, existing ecoacoustic models predominantly rely on supervised learning and, consequently, face two primary limitations: (1) the necessity of annotated data; and (2) the restriction to ...
Yann Teytaut, Sylvain Haupert, Lorenzo Dubois, Ludovic Crochard, Frédéric Azémar, Ángel G. Guevara, Patricia Balaresque, Jérôme Sueur   +7 more
wiley   +1 more source

Genetic structuring in a Neotropical palm analyzed through an Andean orogenesis‐scenario

Ecology and Evolution, 2018
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 ...
Sebastián Escobar, Jean‐Christophe Pintaud, Henrik Balslev, Rodrigo Bernal, Mónica Moraes Ramírez, Betty Millán, Rommel Montúfar   +6 more
doaj   +1 more source